#include "miniz.h"
#include <sys/stat.h>
#include <utime.h>

Include dependency graph for miniz.c:

Classes
struct	inflate_state

struct	tdefl_sym_freq

struct	tdefl_output_buffer

struct	mz_zip_array

struct	mz_zip_internal_state_tag

Macros
#define	TDEFL_PUT_BITS(b, l)

#define	TDEFL_RLE_PREV_CODE_SIZE()

#define	TDEFL_RLE_ZERO_CODE_SIZE()

#define	TDEFL_PROBE

#define	TINFL_MEMCPY(d, s, l) memcpy(d, s, l)

#define	TINFL_MEMSET(p, c, l) memset(p, c, l)

#define	TINFL_CR_BEGIN

#define	TINFL_CR_RETURN(state_index, result)

#define	TINFL_CR_RETURN_FOREVER(state_index, result)

#define	TINFL_CR_FINISH }

#define	TINFL_GET_BYTE(state_index, c)

#define	TINFL_NEED_BITS(state_index, n)

#define	TINFL_SKIP_BITS(state_index, n)

#define	TINFL_GET_BITS(state_index, b, n)

#define	TINFL_HUFF_BITBUF_FILL(state_index, pHuff)

#define	TINFL_HUFF_DECODE(state_index, sym, pHuff)

#define	MZ_FOPEN(f, m) fopen(f, m)

#define	MZ_FCLOSE fclose

#define	MZ_FREAD fread

#define	MZ_FWRITE fwrite

#define	MZ_FTELL64 ftello

#define	MZ_FSEEK64 fseeko

#define	MZ_FILE_STAT_STRUCT stat

#define	MZ_FILE_STAT stat

#define	MZ_FFLUSH fflush

#define	MZ_FREOPEN(f, m, s) freopen(f, m, s)

#define	MZ_DELETE_FILE remove

#define	MZ_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))

#define	MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size

#define	MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[index]

#define	MZ_SWAP_UINT32(a, b)

#define	MZ_WRITE_LE16(p, v) mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v))

#define	MZ_WRITE_LE32(p, v) mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v))

#define	MZ_WRITE_LE64(p, v) mz_write_le64((mz_uint8 *)(p), (mz_uint64)(v))

#define	MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 2)

Typedefs
typedef unsigned char	mz_validate_uint16[sizeof(mz_uint16)==2 ? 1 :-1]

typedef unsigned char	mz_validate_uint32[sizeof(mz_uint32)==4 ? 1 :-1]

typedef unsigned char	mz_validate_uint64[sizeof(mz_uint64)==8 ? 1 :-1]

Enumerations
enum	{ TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32 }

enum	{ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50 , MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50 , MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50 , MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30 , MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46 , MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22 , MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06064b50 , MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG = 0x07064b50 , MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE = 56 , MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE = 20 , MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID = 0x0001 , MZ_ZIP_DATA_DESCRIPTOR_ID = 0x08074b50 , MZ_ZIP_DATA_DESCRIPTER_SIZE64 = 24 , MZ_ZIP_DATA_DESCRIPTER_SIZE32 = 16 , MZ_ZIP_CDH_SIG_OFS = 0 , MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4 , MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6 , MZ_ZIP_CDH_BIT_FLAG_OFS = 8 , MZ_ZIP_CDH_METHOD_OFS = 10 , MZ_ZIP_CDH_FILE_TIME_OFS = 12 , MZ_ZIP_CDH_FILE_DATE_OFS = 14 , MZ_ZIP_CDH_CRC32_OFS = 16 , MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20 , MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24 , MZ_ZIP_CDH_FILENAME_LEN_OFS = 28 , MZ_ZIP_CDH_EXTRA_LEN_OFS = 30 , MZ_ZIP_CDH_COMMENT_LEN_OFS = 32 , MZ_ZIP_CDH_DISK_START_OFS = 34 , MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36 , MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38 , MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42 , MZ_ZIP_LDH_SIG_OFS = 0 , MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4 , MZ_ZIP_LDH_BIT_FLAG_OFS = 6 , MZ_ZIP_LDH_METHOD_OFS = 8 , MZ_ZIP_LDH_FILE_TIME_OFS = 10 , MZ_ZIP_LDH_FILE_DATE_OFS = 12 , MZ_ZIP_LDH_CRC32_OFS = 14 , MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18 , MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22 , MZ_ZIP_LDH_FILENAME_LEN_OFS = 26 , MZ_ZIP_LDH_EXTRA_LEN_OFS = 28 , MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR = 1 << 3 , MZ_ZIP_ECDH_SIG_OFS = 0 , MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4 , MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6 , MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8 , MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10 , MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12 , MZ_ZIP_ECDH_CDIR_OFS_OFS = 16 , MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20 , MZ_ZIP64_ECDL_SIG_OFS = 0 , MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS = 4 , MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS = 8 , MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS = 16 , MZ_ZIP64_ECDH_SIG_OFS = 0 , MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS = 4 , MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS = 12 , MZ_ZIP64_ECDH_VERSION_NEEDED_OFS = 14 , MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS = 16 , MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS = 20 , MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 24 , MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS = 32 , MZ_ZIP64_ECDH_CDIR_SIZE_OFS = 40 , MZ_ZIP64_ECDH_CDIR_OFS_OFS = 48 , MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID = 0 , MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG = 0x10 , MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED = 1 , MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG = 32 , MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION = 64 , MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED = 8192 , MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8 = 1 << 11 }

Functions
mz_ulong	mz_adler32 (mz_ulong adler, const unsigned char *ptr, size_t buf_len)

mz_ulong	mz_crc32 (mz_ulong crc, const mz_uint8 *ptr, size_t buf_len)

void	mz_free (void *p)

void *	miniz_def_alloc_func (void *opaque, size_t items, size_t size)

void	miniz_def_free_func (void opaque, void address)

void *	miniz_def_realloc_func (void opaque, void address, size_t items, size_t size)

const char *	mz_version (void)

int	mz_deflateInit (mz_streamp pStream, int level)

int	mz_deflateInit2 (mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy)

int	mz_deflateReset (mz_streamp pStream)

int	mz_deflate (mz_streamp pStream, int flush)

int	mz_deflateEnd (mz_streamp pStream)

mz_ulong	mz_deflateBound (mz_streamp pStream, mz_ulong source_len)

int	mz_compress2 (unsigned char pDest, mz_ulong pDest_len, const unsigned char *pSource, mz_ulong source_len, int level)

int	mz_compress (unsigned char pDest, mz_ulong pDest_len, const unsigned char *pSource, mz_ulong source_len)

mz_ulong	mz_compressBound (mz_ulong source_len)

int	mz_inflateInit2 (mz_streamp pStream, int window_bits)

int	mz_inflateInit (mz_streamp pStream)

int	mz_inflateReset (mz_streamp pStream)

int	mz_inflate (mz_streamp pStream, int flush)

int	mz_inflateEnd (mz_streamp pStream)

int	mz_uncompress (unsigned char pDest, mz_ulong pDest_len, const unsigned char *pSource, mz_ulong source_len)

const char *	mz_error (int err)

static tdefl_sym_freq *	tdefl_radix_sort_syms (mz_uint num_syms, tdefl_sym_freq pSyms0, tdefl_sym_freq pSyms1)

static void	tdefl_calculate_minimum_redundancy (tdefl_sym_freq *A, int n)

static void	tdefl_huffman_enforce_max_code_size (int *pNum_codes, int code_list_len, int max_code_size)

static void	tdefl_optimize_huffman_table (tdefl_compressor *d, int table_num, int table_len, int code_size_limit, int static_table)

static void	tdefl_start_dynamic_block (tdefl_compressor *d)

static void	tdefl_start_static_block (tdefl_compressor *d)

static mz_bool	tdefl_compress_lz_codes (tdefl_compressor *d)

static mz_bool	tdefl_compress_block (tdefl_compressor *d, mz_bool static_block)

static int	tdefl_flush_block (tdefl_compressor *d, int flush)

static MZ_FORCEINLINE void	tdefl_find_match (tdefl_compressor d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint pMatch_dist, mz_uint *pMatch_len)

static MZ_FORCEINLINE void	tdefl_record_literal (tdefl_compressor *d, mz_uint8 lit)

static MZ_FORCEINLINE void	tdefl_record_match (tdefl_compressor *d, mz_uint match_len, mz_uint match_dist)

static mz_bool	tdefl_compress_normal (tdefl_compressor *d)

static tdefl_status	tdefl_flush_output_buffer (tdefl_compressor *d)

tdefl_status	tdefl_compress (tdefl_compressor d, const void pIn_buf, size_t pIn_buf_size, void pOut_buf, size_t *pOut_buf_size, tdefl_flush flush)

tdefl_status	tdefl_compress_buffer (tdefl_compressor d, const void pIn_buf, size_t in_buf_size, tdefl_flush flush)

tdefl_status	tdefl_init (tdefl_compressor d, tdefl_put_buf_func_ptr pPut_buf_func, void pPut_buf_user, int flags)

tdefl_status	tdefl_get_prev_return_status (tdefl_compressor *d)

mz_uint32	tdefl_get_adler32 (tdefl_compressor *d)

mz_bool	tdefl_compress_mem_to_output (const void pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void pPut_buf_user, int flags)

static mz_bool	tdefl_output_buffer_putter (const void pBuf, int len, void pUser)

void *	tdefl_compress_mem_to_heap (const void pSrc_buf, size_t src_buf_len, size_t pOut_len, int flags)

size_t	tdefl_compress_mem_to_mem (void pOut_buf, size_t out_buf_len, const void pSrc_buf, size_t src_buf_len, int flags)

mz_uint	tdefl_create_comp_flags_from_zip_params (int level, int window_bits, int strategy)

void *	tdefl_write_image_to_png_file_in_memory_ex (const void pImage, int w, int h, int num_chans, size_t pLen_out, mz_uint level, mz_bool flip)

void *	tdefl_write_image_to_png_file_in_memory (const void pImage, int w, int h, int num_chans, size_t pLen_out)

tdefl_compressor *	tdefl_compressor_alloc ()

void	tdefl_compressor_free (tdefl_compressor *pComp)

tinfl_status	tinfl_decompress (tinfl_decompressor r, const mz_uint8 pIn_buf_next, size_t pIn_buf_size, mz_uint8 pOut_buf_start, mz_uint8 pOut_buf_next, size_t pOut_buf_size, const mz_uint32 decomp_flags)

void *	tinfl_decompress_mem_to_heap (const void pSrc_buf, size_t src_buf_len, size_t pOut_len, int flags)

size_t	tinfl_decompress_mem_to_mem (void pOut_buf, size_t out_buf_len, const void pSrc_buf, size_t src_buf_len, int flags)

int	tinfl_decompress_mem_to_callback (const void pIn_buf, size_t pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)

tinfl_decompressor *	tinfl_decompressor_alloc ()

void	tinfl_decompressor_free (tinfl_decompressor *pDecomp)

static MZ_FORCEINLINE void	mz_zip_array_init (mz_zip_array *pArray, mz_uint32 element_size)

static MZ_FORCEINLINE void	mz_zip_array_clear (mz_zip_archive pZip, mz_zip_array pArray)

static mz_bool	mz_zip_array_ensure_capacity (mz_zip_archive pZip, mz_zip_array pArray, size_t min_new_capacity, mz_uint growing)

static MZ_FORCEINLINE mz_bool	mz_zip_array_reserve (mz_zip_archive pZip, mz_zip_array pArray, size_t new_capacity, mz_uint growing)

static MZ_FORCEINLINE mz_bool	mz_zip_array_resize (mz_zip_archive pZip, mz_zip_array pArray, size_t new_size, mz_uint growing)

static MZ_FORCEINLINE mz_bool	mz_zip_array_ensure_room (mz_zip_archive pZip, mz_zip_array pArray, size_t n)

static MZ_FORCEINLINE mz_bool	mz_zip_array_push_back (mz_zip_archive pZip, mz_zip_array pArray, const void *pElements, size_t n)

static MZ_TIME_T	mz_zip_dos_to_time_t (int dos_time, int dos_date)

static void	mz_zip_time_t_to_dos_time (MZ_TIME_T time, mz_uint16 pDOS_time, mz_uint16 pDOS_date)

static mz_bool	mz_zip_get_file_modified_time (const char pFilename, MZ_TIME_T pTime)

static mz_bool	mz_zip_set_file_times (const char *pFilename, MZ_TIME_T access_time, MZ_TIME_T modified_time)

static MZ_FORCEINLINE mz_bool	mz_zip_set_error (mz_zip_archive *pZip, mz_zip_error err_num)

static mz_bool	mz_zip_reader_init_internal (mz_zip_archive *pZip, mz_uint flags)

static MZ_FORCEINLINE mz_bool	mz_zip_reader_filename_less (const mz_zip_array pCentral_dir_array, const mz_zip_array pCentral_dir_offsets, mz_uint l_index, mz_uint r_index)

static void	mz_zip_reader_sort_central_dir_offsets_by_filename (mz_zip_archive *pZip)

static mz_bool	mz_zip_reader_locate_header_sig (mz_zip_archive pZip, mz_uint32 record_sig, mz_uint32 record_size, mz_int64 pOfs)

static mz_bool	mz_zip_reader_read_central_dir (mz_zip_archive *pZip, mz_uint flags)

void	mz_zip_zero_struct (mz_zip_archive *pZip)

static mz_bool	mz_zip_reader_end_internal (mz_zip_archive *pZip, mz_bool set_last_error)

mz_bool	mz_zip_reader_end (mz_zip_archive *pZip)

mz_bool	mz_zip_reader_init (mz_zip_archive *pZip, mz_uint64 size, mz_uint flags)

static size_t	mz_zip_mem_read_func (void pOpaque, mz_uint64 file_ofs, void pBuf, size_t n)

mz_bool	mz_zip_reader_init_mem (mz_zip_archive pZip, const void pMem, size_t size, mz_uint flags)

static size_t	mz_zip_file_read_func (void pOpaque, mz_uint64 file_ofs, void pBuf, size_t n)

mz_bool	mz_zip_reader_init_file (mz_zip_archive pZip, const char pFilename, mz_uint32 flags)

mz_bool	mz_zip_reader_init_file_v2 (mz_zip_archive pZip, const char pFilename, mz_uint flags, mz_uint64 file_start_ofs, mz_uint64 archive_size)

mz_bool	mz_zip_reader_init_cfile (mz_zip_archive pZip, MZ_FILE pFile, mz_uint64 archive_size, mz_uint flags)

static MZ_FORCEINLINE const mz_uint8 *	mz_zip_get_cdh (mz_zip_archive *pZip, mz_uint file_index)

mz_bool	mz_zip_reader_is_file_encrypted (mz_zip_archive *pZip, mz_uint file_index)

mz_bool	mz_zip_reader_is_file_supported (mz_zip_archive *pZip, mz_uint file_index)

mz_bool	mz_zip_reader_is_file_a_directory (mz_zip_archive *pZip, mz_uint file_index)

static mz_bool	mz_zip_file_stat_internal (mz_zip_archive pZip, mz_uint file_index, const mz_uint8 pCentral_dir_header, mz_zip_archive_file_stat pStat, mz_bool pFound_zip64_extra_data)

static MZ_FORCEINLINE mz_bool	mz_zip_string_equal (const char pA, const char pB, mz_uint len, mz_uint flags)

static MZ_FORCEINLINE int	mz_zip_filename_compare (const mz_zip_array pCentral_dir_array, const mz_zip_array pCentral_dir_offsets, mz_uint l_index, const char *pR, mz_uint r_len)

static mz_bool	mz_zip_locate_file_binary_search (mz_zip_archive pZip, const char pFilename, mz_uint32 *pIndex)

int	mz_zip_reader_locate_file (mz_zip_archive pZip, const char pName, const char *pComment, mz_uint flags)

mz_bool	mz_zip_reader_locate_file_v2 (mz_zip_archive pZip, const char pName, const char pComment, mz_uint flags, mz_uint32 pIndex)

mz_bool	mz_zip_reader_extract_to_mem_no_alloc (mz_zip_archive pZip, mz_uint file_index, void pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)

mz_bool	mz_zip_reader_extract_file_to_mem_no_alloc (mz_zip_archive pZip, const char pFilename, void pBuf, size_t buf_size, mz_uint flags, void pUser_read_buf, size_t user_read_buf_size)

mz_bool	mz_zip_reader_extract_to_mem (mz_zip_archive pZip, mz_uint file_index, void pBuf, size_t buf_size, mz_uint flags)

mz_bool	mz_zip_reader_extract_file_to_mem (mz_zip_archive pZip, const char pFilename, void *pBuf, size_t buf_size, mz_uint flags)

void *	mz_zip_reader_extract_to_heap (mz_zip_archive pZip, mz_uint file_index, size_t pSize, mz_uint flags)

void *	mz_zip_reader_extract_file_to_heap (mz_zip_archive pZip, const char pFilename, size_t *pSize, mz_uint flags)

mz_bool	mz_zip_reader_extract_to_callback (mz_zip_archive pZip, mz_uint file_index, mz_file_write_func pCallback, void pOpaque, mz_uint flags)

mz_bool	mz_zip_reader_extract_file_to_callback (mz_zip_archive pZip, const char pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags)

mz_zip_reader_extract_iter_state *	mz_zip_reader_extract_iter_new (mz_zip_archive *pZip, mz_uint file_index, mz_uint flags)

mz_zip_reader_extract_iter_state *	mz_zip_reader_extract_file_iter_new (mz_zip_archive pZip, const char pFilename, mz_uint flags)

size_t	mz_zip_reader_extract_iter_read (mz_zip_reader_extract_iter_state pState, void pvBuf, size_t buf_size)

mz_bool	mz_zip_reader_extract_iter_free (mz_zip_reader_extract_iter_state *pState)

static size_t	mz_zip_file_write_callback (void pOpaque, mz_uint64 ofs, const void pBuf, size_t n)

mz_bool	mz_zip_reader_extract_to_file (mz_zip_archive pZip, mz_uint file_index, const char pDst_filename, mz_uint flags)

mz_bool	mz_zip_reader_extract_file_to_file (mz_zip_archive pZip, const char pArchive_filename, const char *pDst_filename, mz_uint flags)

mz_bool	mz_zip_reader_extract_to_cfile (mz_zip_archive pZip, mz_uint file_index, MZ_FILE pFile, mz_uint flags)

mz_bool	mz_zip_reader_extract_file_to_cfile (mz_zip_archive pZip, const char pArchive_filename, MZ_FILE *pFile, mz_uint flags)

static size_t	mz_zip_compute_crc32_callback (void pOpaque, mz_uint64 file_ofs, const void pBuf, size_t n)

mz_bool	mz_zip_validate_file (mz_zip_archive *pZip, mz_uint file_index, mz_uint flags)

mz_bool	mz_zip_validate_archive (mz_zip_archive *pZip, mz_uint flags)

mz_bool	mz_zip_validate_mem_archive (const void pMem, size_t size, mz_uint flags, mz_zip_error pErr)

mz_bool	mz_zip_validate_file_archive (const char pFilename, mz_uint flags, mz_zip_error pErr)

static MZ_FORCEINLINE void	mz_write_le16 (mz_uint8 *p, mz_uint16 v)

static MZ_FORCEINLINE void	mz_write_le32 (mz_uint8 *p, mz_uint32 v)

static MZ_FORCEINLINE void	mz_write_le64 (mz_uint8 *p, mz_uint64 v)

static size_t	mz_zip_heap_write_func (void pOpaque, mz_uint64 file_ofs, const void pBuf, size_t n)

static mz_bool	mz_zip_writer_end_internal (mz_zip_archive *pZip, mz_bool set_last_error)

mz_bool	mz_zip_writer_init_v2 (mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags)

mz_bool	mz_zip_writer_init (mz_zip_archive *pZip, mz_uint64 existing_size)

mz_bool	mz_zip_writer_init_heap_v2 (mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size, mz_uint flags)

mz_bool	mz_zip_writer_init_heap (mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size)

static size_t	mz_zip_file_write_func (void pOpaque, mz_uint64 file_ofs, const void pBuf, size_t n)

mz_bool	mz_zip_writer_init_file (mz_zip_archive pZip, const char pFilename, mz_uint64 size_to_reserve_at_beginning)

mz_bool	mz_zip_writer_init_file_v2 (mz_zip_archive pZip, const char pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags)

mz_bool	mz_zip_writer_init_cfile (mz_zip_archive pZip, MZ_FILE pFile, mz_uint flags)

mz_bool	mz_zip_writer_init_from_reader_v2 (mz_zip_archive pZip, const char pFilename, mz_uint flags)

mz_bool	mz_zip_writer_init_from_reader (mz_zip_archive pZip, const char pFilename)

mz_bool	mz_zip_writer_add_mem (mz_zip_archive pZip, const char pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags)

static mz_bool	mz_zip_writer_add_put_buf_callback (const void pBuf, int len, void pUser)

static mz_uint32	mz_zip_writer_create_zip64_extra_data (mz_uint8 pBuf, mz_uint64 pUncomp_size, mz_uint64 pComp_size, mz_uint64 pLocal_header_ofs)

static mz_bool	mz_zip_writer_create_local_dir_header (mz_zip_archive pZip, mz_uint8 pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date)

static mz_bool	mz_zip_writer_create_central_dir_header (mz_zip_archive pZip, mz_uint8 pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint16 comment_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, mz_uint64 local_header_ofs, mz_uint32 ext_attributes)

static mz_bool	mz_zip_writer_add_to_central_dir (mz_zip_archive pZip, const char pFilename, mz_uint16 filename_size, const void pExtra, mz_uint16 extra_size, const void pComment, mz_uint16 comment_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, mz_uint64 local_header_ofs, mz_uint32 ext_attributes, const char *user_extra_data, mz_uint user_extra_data_len)

static mz_bool	mz_zip_writer_validate_archive_name (const char *pArchive_name)

static mz_uint	mz_zip_writer_compute_padding_needed_for_file_alignment (mz_zip_archive *pZip)

static mz_bool	mz_zip_writer_write_zeros (mz_zip_archive *pZip, mz_uint64 cur_file_ofs, mz_uint32 n)

mz_bool	mz_zip_writer_add_mem_ex (mz_zip_archive pZip, const char pArchive_name, const void pBuf, size_t buf_size, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32)

mz_bool	mz_zip_writer_add_mem_ex_v2 (mz_zip_archive pZip, const char pArchive_name, const void pBuf, size_t buf_size, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32, MZ_TIME_T last_modified, const char user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)

mz_bool	mz_zip_writer_add_read_buf_callback (mz_zip_archive pZip, const char pArchive_name, mz_file_read_func read_callback, void callback_opaque, mz_uint64 max_size, const MZ_TIME_T pFile_time, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)

static mz_uint32	mz_zip_writer_preallocate_extra_data (mz_uint8 *pBuf, mz_uint32 extra_data_size)

mz_bool	mz_zip_writer_add_staged_open (mz_zip_archive pZip, mz_zip_writer_staged_context pContext, const char pArchive_name, mz_uint64 max_size, const MZ_TIME_T pFile_time, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)

mz_bool	mz_zip_writer_add_staged_data (mz_zip_writer_staged_context pContext, const char pRead_buf, size_t n)

mz_bool	mz_zip_writer_add_staged_finish (mz_zip_writer_staged_context *pContext)

static size_t	mz_file_read_func_stdio (void pOpaque, mz_uint64 file_ofs, void pBuf, size_t n)

mz_bool	mz_zip_writer_add_cfile (mz_zip_archive pZip, const char pArchive_name, MZ_FILE pSrc_file, mz_uint64 size_to_add, const MZ_TIME_T pFile_time, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)

mz_bool	mz_zip_writer_add_file (mz_zip_archive pZip, const char pArchive_name, const char pSrc_filename, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags)

static mz_bool	mz_zip_writer_update_zip64_extension_block (mz_zip_array pNew_ext, mz_zip_archive pZip, const mz_uint8 pExt, uint32_t ext_len, mz_uint64 pComp_size, mz_uint64 pUncomp_size, mz_uint64 pLocal_header_ofs, mz_uint32 *pDisk_start)

mz_bool	mz_zip_writer_add_from_zip_reader (mz_zip_archive pZip, mz_zip_archive pSource_zip, mz_uint src_file_index)

mz_bool	mz_zip_writer_finalize_archive (mz_zip_archive *pZip)

mz_bool	mz_zip_writer_finalize_heap_archive (mz_zip_archive pZip, void ppBuf, size_t pSize)

mz_bool	mz_zip_writer_end (mz_zip_archive *pZip)

mz_bool	mz_zip_add_mem_to_archive_file_in_place (const char pZip_filename, const char pArchive_name, const void pBuf, size_t buf_size, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags)

mz_bool	mz_zip_add_mem_to_archive_file_in_place_v2 (const char pZip_filename, const char pArchive_name, const void pBuf, size_t buf_size, const void pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_zip_error *pErr)

void *	mz_zip_extract_archive_file_to_heap_v2 (const char pZip_filename, const char pArchive_name, const char pComment, size_t pSize, mz_uint flags, mz_zip_error *pErr)

void *	mz_zip_extract_archive_file_to_heap (const char pZip_filename, const char pArchive_name, size_t *pSize, mz_uint flags)

mz_zip_mode	mz_zip_get_mode (mz_zip_archive *pZip)

mz_zip_type	mz_zip_get_type (mz_zip_archive *pZip)

mz_zip_error	mz_zip_set_last_error (mz_zip_archive *pZip, mz_zip_error err_num)

mz_zip_error	mz_zip_peek_last_error (mz_zip_archive *pZip)

mz_zip_error	mz_zip_clear_last_error (mz_zip_archive *pZip)

mz_zip_error	mz_zip_get_last_error (mz_zip_archive *pZip)

const char *	mz_zip_get_error_string (mz_zip_error mz_err)

mz_bool	mz_zip_is_zip64 (mz_zip_archive *pZip)

size_t	mz_zip_get_central_dir_size (mz_zip_archive *pZip)

mz_uint	mz_zip_reader_get_num_files (mz_zip_archive *pZip)

mz_uint64	mz_zip_get_archive_size (mz_zip_archive *pZip)

mz_uint64	mz_zip_get_archive_file_start_offset (mz_zip_archive *pZip)

MZ_FILE *	mz_zip_get_cfile (mz_zip_archive *pZip)

size_t	mz_zip_read_archive_data (mz_zip_archive pZip, mz_uint64 file_ofs, void pBuf, size_t n)

mz_uint	mz_zip_reader_get_filename (mz_zip_archive pZip, mz_uint file_index, char pFilename, mz_uint filename_buf_size)

mz_uint	mz_zip_reader_get_filename_from_extra (mz_zip_archive pZip, mz_uint file_index, char buffer, mz_uint extra_buf_size)

mz_bool	mz_zip_reader_file_stat (mz_zip_archive pZip, mz_uint file_index, mz_zip_archive_file_stat pStat)

mz_bool	mz_zip_end (mz_zip_archive *pZip)

Variables
static const mz_uint16	s_tdefl_len_sym [256]

static const mz_uint8	s_tdefl_len_extra [256]

static const mz_uint8	s_tdefl_small_dist_sym [512]

static const mz_uint8	s_tdefl_small_dist_extra [512]

static const mz_uint8	s_tdefl_large_dist_sym [128]

static const mz_uint8	s_tdefl_large_dist_extra [128]

static mz_uint8	s_tdefl_packed_code_size_syms_swizzle [] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 }

static const mz_uint	mz_bitmasks [17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF }

static const mz_uint	s_tdefl_num_probes [11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 }

Class Documentation

◆ inflate_state

struct inflate_state

Collaboration diagram for inflate_state:

Class Members
tinfl_decompressor	m_decomp
mz_uint8	m_dict[TINFL_LZ_DICT_SIZE]
mz_uint	m_dict_avail
mz_uint	m_dict_ofs
mz_uint	m_first_call
mz_uint	m_has_flushed
tinfl_status	m_last_status
int	m_window_bits

◆ tdefl_sym_freq

struct tdefl_sym_freq

Class Members
mz_uint16	m_key
mz_uint16	m_sym_index

◆ tdefl_output_buffer

struct tdefl_output_buffer

Class Members
size_t	m_capacity
mz_bool	m_expandable
mz_uint8 *	m_pBuf
size_t	m_size

◆ mz_zip_array

struct mz_zip_array

Class Members
size_t	m_capacity
mz_uint	m_element_size
void *	m_p
size_t	m_size

◆ mz_zip_internal_state_tag

struct mz_zip_internal_state_tag

Collaboration diagram for mz_zip_internal_state_tag:

Class Members
mz_zip_array	m_central_dir
mz_zip_array	m_central_dir_offsets
mz_uint64	m_file_archive_start_ofs
uint32_t	m_init_flags
size_t	m_mem_capacity
size_t	m_mem_size
MZ_FILE *	m_pFile
void *	m_pMem
mz_zip_array	m_sorted_central_dir_offsets
mz_bool	m_zip64
mz_bool	m_zip64_has_extended_info_fields

Macro Definition Documentation

◆ MZ_DELETE_FILE

#define MZ_DELETE_FILE remove

◆ MZ_FCLOSE

#define MZ_FCLOSE fclose

◆ MZ_FFLUSH

#define MZ_FFLUSH fflush

◆ MZ_FILE_STAT

#define MZ_FILE_STAT stat

◆ MZ_FILE_STAT_STRUCT

#define MZ_FILE_STAT_STRUCT stat

◆ MZ_FOPEN

#define MZ_FOPEN	(	f,
		m
	)	fopen(f, m)

◆ MZ_FREAD

#define MZ_FREAD fread

◆ MZ_FREOPEN

#define MZ_FREOPEN	(	f,
		m,
		s
	)	freopen(f, m, s)

◆ MZ_FSEEK64

#define MZ_FSEEK64 fseeko

◆ MZ_FTELL64

#define MZ_FTELL64 ftello

◆ MZ_FWRITE

#define MZ_FWRITE fwrite

◆ MZ_SWAP_UINT32

#define MZ_SWAP_UINT32	(	a,
		b
	)

Value:

    do                       \
    {                        \
        mz_uint32 t = a;     \
        a = b;               \
        b = t;               \
    }                        \
    MZ_MACRO_END

◆ MZ_TOLOWER

#define MZ_TOLOWER ( c ) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))

◆ MZ_WRITE_LE16

#define MZ_WRITE_LE16	(	p,
		v
	)	mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v))

◆ MZ_WRITE_LE32

#define MZ_WRITE_LE32	(	p,
		v
	)	mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v))

◆ MZ_WRITE_LE64

#define MZ_WRITE_LE64	(	p,
		v
	)	mz_write_le64((mz_uint8 *)(p), (mz_uint64)(v))

◆ MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE

#define MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 2)

◆ MZ_ZIP_ARRAY_ELEMENT

#define MZ_ZIP_ARRAY_ELEMENT	(	array_ptr,
		element_type,
		index
	)	((element_type *)((array_ptr)->m_p))[index]

◆ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE

#define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE	(	array_ptr,
		element_size
	)	(array_ptr)->m_element_size = element_size

◆ TDEFL_PROBE

#define TDEFL_PROBE

Value:

    next_probe_pos = d->m_next[probe_pos];                                                        \
    if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist))   \
        return;                                                                                   \
    probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK;                                         \
    if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) \
        break;

◆ TDEFL_PUT_BITS

#define TDEFL_PUT_BITS	(	b,
		l
	)

Value:

    do                                                             \
    {                                                              \
        mz_uint bits = b;                                          \
        mz_uint len = l;                                           \
        MZ_ASSERT(bits <= ((1U << len) - 1U));                     \
        d->m_bit_buffer |= (bits << d->m_bits_in);                 \
        d->m_bits_in += len;                                       \
        while (d->m_bits_in >= 8)                                  \
        {                                                          \
            if (d->m_pOutput_buf < d->m_pOutput_buf_end)           \
                *d->m_pOutput_buf++ = (mz_uint8)(d->m_bit_buffer); \
            d->m_bit_buffer >>= 8;                                 \
            d->m_bits_in -= 8;                                     \
        }                                                          \
    }                                                              \
    MZ_MACRO_END

◆ TDEFL_RLE_PREV_CODE_SIZE

#define TDEFL_RLE_PREV_CODE_SIZE ( )

Value:

    {                                                                                                                    \
        if (rle_repeat_count)                                                                                            \
        {                                                                                                                \
            if (rle_repeat_count < 3)                                                                                    \
            {                                                                                                            \
                d->m_huff_count[2][prev_code_size] = (mz_uint16)(d->m_huff_count[2][prev_code_size] + rle_repeat_count); \
                while (rle_repeat_count--)                                                                               \
                    packed_code_sizes[num_packed_code_sizes++] = prev_code_size;                                         \
            }                                                                                                            \
            else                                                                                                         \
            {                                                                                                            \
                d->m_huff_count[2][16] = (mz_uint16)(d->m_huff_count[2][16] + 1);                                        \
                packed_code_sizes[num_packed_code_sizes++] = 16;                                                         \
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_repeat_count - 3);                           \
            }                                                                                                            \
            rle_repeat_count = 0;                                                                                        \
        }                                                                                                                \
    }

◆ TDEFL_RLE_ZERO_CODE_SIZE

#define TDEFL_RLE_ZERO_CODE_SIZE ( )

Value:

    {                                                                                      \
        if (rle_z_count)                                                                   \
        {                                                                                  \
            if (rle_z_count < 3)                                                           \
            {                                                                              \
                d->m_huff_count[2][0] = (mz_uint16)(d->m_huff_count[2][0] + rle_z_count);  \
                while (rle_z_count--)                                                      \
                    packed_code_sizes[num_packed_code_sizes++] = 0;                        \
            }                                                                              \
            else if (rle_z_count <= 10)                                                    \
            {                                                                              \
                d->m_huff_count[2][17] = (mz_uint16)(d->m_huff_count[2][17] + 1);          \
                packed_code_sizes[num_packed_code_sizes++] = 17;                           \
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 3);  \
            }                                                                              \
            else                                                                           \
            {                                                                              \
                d->m_huff_count[2][18] = (mz_uint16)(d->m_huff_count[2][18] + 1);          \
                packed_code_sizes[num_packed_code_sizes++] = 18;                           \
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 11); \
            }                                                                              \
            rle_z_count = 0;                                                               \
        }                                                                                  \
    }

◆ TINFL_CR_BEGIN

#define TINFL_CR_BEGIN

Value:

    switch (r->m_state) \
    {                   \
        case 0:

◆ TINFL_CR_FINISH

#define TINFL_CR_FINISH }

◆ TINFL_CR_RETURN

#define TINFL_CR_RETURN	(	state_index,
		result
	)

Value:

    do                                       \
    {                                        \
        status = result;                     \
        r->m_state = state_index;            \
        goto common_exit;                    \
        case state_index:;                   \
    }                                        \
    MZ_MACRO_END

◆ TINFL_CR_RETURN_FOREVER

#define TINFL_CR_RETURN_FOREVER	(	state_index,
		result
	)

Value:

    do                                               \
    {                                                \
        for (;;)                                     \
        {                                            \
            TINFL_CR_RETURN(state_index, result);    \
        }                                            \
    }                                                \
    MZ_MACRO_END

◆ TINFL_GET_BITS

#define TINFL_GET_BITS	(	state_index,
		b,
		n
	)

Value:

    do                                       \
    {                                        \
        if (num_bits < (mz_uint)(n))         \
        {                                    \
            TINFL_NEED_BITS(state_index, n); \
        }                                    \
        b = bit_buf & ((1 << (n)) - 1);      \
        bit_buf >>= (n);                     \
        num_bits -= (n);                     \
    }                                        \
    MZ_MACRO_END

◆ TINFL_GET_BYTE

#define TINFL_GET_BYTE	(	state_index,
		c
	)

Value:

    do                                                                                                                                                           \
    {                                                                                                                                                            \
        while (pIn_buf_cur >= pIn_buf_end)                                                                                                                       \
        {                                                                                                                                                        \
            TINFL_CR_RETURN(state_index, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS); \
        }                                                                                                                                                        \
        c = *pIn_buf_cur++;                                                                                                                                      \
    }                                                                                                                                                            \
    MZ_MACRO_END

◆ TINFL_HUFF_BITBUF_FILL

#define TINFL_HUFF_BITBUF_FILL	(	state_index,
		pHuff
	)

Value:

    do                                                                         \
    {                                                                          \
        temp = (pHuff)->m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)];     \
        if (temp >= 0)                                                         \
        {                                                                      \
            code_len = temp >> 9;                                              \
            if ((code_len) && (num_bits >= code_len))                          \
                break;                                                         \
        }                                                                      \
        else if (num_bits > TINFL_FAST_LOOKUP_BITS)                            \
        {                                                                      \
            code_len = TINFL_FAST_LOOKUP_BITS;                                 \
            do                                                                 \
            {                                                                  \
                temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \
            } while ((temp < 0) && (num_bits >= (code_len + 1)));              \
            if (temp >= 0)                                                     \
                break;                                                         \
        }                                                                      \
        TINFL_GET_BYTE(state_index, c);                                        \
        bit_buf |= (((tinfl_bit_buf_t)c) << num_bits);                         \
        num_bits += 8;                                                         \
    } while (num_bits < 15);

◆ TINFL_HUFF_DECODE

#define TINFL_HUFF_DECODE	(	state_index,
		sym,
		pHuff
	)

◆ TINFL_MEMCPY

#define TINFL_MEMCPY	(	d,
		s,
		l
	)	memcpy(d, s, l)

◆ TINFL_MEMSET

#define TINFL_MEMSET	(	p,
		c,
		l
	)	memset(p, c, l)

◆ TINFL_NEED_BITS

#define TINFL_NEED_BITS	(	state_index,
		n
	)

Value:

    do                                                 \
    {                                                  \
        mz_uint c;                                     \
        TINFL_GET_BYTE(state_index, c);                \
        bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \
        num_bits += 8;                                 \
    } while (num_bits < (mz_uint)(n))

◆ TINFL_SKIP_BITS

#define TINFL_SKIP_BITS	(	state_index,
		n
	)

Value:

    do                                       \
    {                                        \
        if (num_bits < (mz_uint)(n))         \
        {                                    \
            TINFL_NEED_BITS(state_index, n); \
        }                                    \
        bit_buf >>= (n);                     \
        num_bits -= (n);                     \
    }                                        \
    MZ_MACRO_END

Typedef Documentation

◆ mz_validate_uint16

typedef unsigned char mz_validate_uint16[sizeof(mz_uint16)==2 ? 1 :-1]

◆ mz_validate_uint32

typedef unsigned char mz_validate_uint32[sizeof(mz_uint32)==4 ? 1 :-1]

◆ mz_validate_uint64

typedef unsigned char mz_validate_uint64[sizeof(mz_uint64)==8 ? 1 :-1]

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
TDEFL_MAX_SUPPORTED_HUFF_CODESIZE

{
    TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32
};

◆ anonymous enum

anonymous enum

Enumerator
MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG
MZ_ZIP_CENTRAL_DIR_HEADER_SIG
MZ_ZIP_LOCAL_DIR_HEADER_SIG
MZ_ZIP_LOCAL_DIR_HEADER_SIZE
MZ_ZIP_CENTRAL_DIR_HEADER_SIZE
MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE
MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG
MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG
MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE
MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE
MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID
MZ_ZIP_DATA_DESCRIPTOR_ID
MZ_ZIP_DATA_DESCRIPTER_SIZE64
MZ_ZIP_DATA_DESCRIPTER_SIZE32
MZ_ZIP_CDH_SIG_OFS
MZ_ZIP_CDH_VERSION_MADE_BY_OFS
MZ_ZIP_CDH_VERSION_NEEDED_OFS
MZ_ZIP_CDH_BIT_FLAG_OFS
MZ_ZIP_CDH_METHOD_OFS
MZ_ZIP_CDH_FILE_TIME_OFS
MZ_ZIP_CDH_FILE_DATE_OFS
MZ_ZIP_CDH_CRC32_OFS
MZ_ZIP_CDH_COMPRESSED_SIZE_OFS
MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS
MZ_ZIP_CDH_FILENAME_LEN_OFS
MZ_ZIP_CDH_EXTRA_LEN_OFS
MZ_ZIP_CDH_COMMENT_LEN_OFS
MZ_ZIP_CDH_DISK_START_OFS
MZ_ZIP_CDH_INTERNAL_ATTR_OFS
MZ_ZIP_CDH_EXTERNAL_ATTR_OFS
MZ_ZIP_CDH_LOCAL_HEADER_OFS
MZ_ZIP_LDH_SIG_OFS
MZ_ZIP_LDH_VERSION_NEEDED_OFS
MZ_ZIP_LDH_BIT_FLAG_OFS
MZ_ZIP_LDH_METHOD_OFS
MZ_ZIP_LDH_FILE_TIME_OFS
MZ_ZIP_LDH_FILE_DATE_OFS
MZ_ZIP_LDH_CRC32_OFS
MZ_ZIP_LDH_COMPRESSED_SIZE_OFS
MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS
MZ_ZIP_LDH_FILENAME_LEN_OFS
MZ_ZIP_LDH_EXTRA_LEN_OFS
MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR
MZ_ZIP_ECDH_SIG_OFS
MZ_ZIP_ECDH_NUM_THIS_DISK_OFS
MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS
MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS
MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS
MZ_ZIP_ECDH_CDIR_SIZE_OFS
MZ_ZIP_ECDH_CDIR_OFS_OFS
MZ_ZIP_ECDH_COMMENT_SIZE_OFS
MZ_ZIP64_ECDL_SIG_OFS
MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS
MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS
MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS
MZ_ZIP64_ECDH_SIG_OFS
MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS
MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS
MZ_ZIP64_ECDH_VERSION_NEEDED_OFS
MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS
MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS
MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS
MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS
MZ_ZIP64_ECDH_CDIR_SIZE_OFS
MZ_ZIP64_ECDH_CDIR_OFS_OFS
MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID
MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG
MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED
MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG
MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION
MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED
MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8

{
    /* ZIP archive identifiers and record sizes */
    MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50,
    MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50,
    MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50,
    MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30,
    MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46,
    MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22,
 
    /* ZIP64 archive identifier and record sizes */
    MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06064b50,
    MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG = 0x07064b50,
    MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE = 56,
    MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE = 20,
    MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID = 0x0001,
    MZ_ZIP_DATA_DESCRIPTOR_ID = 0x08074b50,
    MZ_ZIP_DATA_DESCRIPTER_SIZE64 = 24,
    MZ_ZIP_DATA_DESCRIPTER_SIZE32 = 16,
 
    /* Central directory header record offsets */
    MZ_ZIP_CDH_SIG_OFS = 0,
    MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4,
    MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6,
    MZ_ZIP_CDH_BIT_FLAG_OFS = 8,
    MZ_ZIP_CDH_METHOD_OFS = 10,
    MZ_ZIP_CDH_FILE_TIME_OFS = 12,
    MZ_ZIP_CDH_FILE_DATE_OFS = 14,
    MZ_ZIP_CDH_CRC32_OFS = 16,
    MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20,
    MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24,
    MZ_ZIP_CDH_FILENAME_LEN_OFS = 28,
    MZ_ZIP_CDH_EXTRA_LEN_OFS = 30,
    MZ_ZIP_CDH_COMMENT_LEN_OFS = 32,
    MZ_ZIP_CDH_DISK_START_OFS = 34,
    MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36,
    MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38,
    MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42,
 
    /* Local directory header offsets */
    MZ_ZIP_LDH_SIG_OFS = 0,
    MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4,
    MZ_ZIP_LDH_BIT_FLAG_OFS = 6,
    MZ_ZIP_LDH_METHOD_OFS = 8,
    MZ_ZIP_LDH_FILE_TIME_OFS = 10,
    MZ_ZIP_LDH_FILE_DATE_OFS = 12,
    MZ_ZIP_LDH_CRC32_OFS = 14,
    MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18,
    MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22,
    MZ_ZIP_LDH_FILENAME_LEN_OFS = 26,
    MZ_ZIP_LDH_EXTRA_LEN_OFS = 28,
    MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR = 1 << 3,
 
    /* End of central directory offsets */
    MZ_ZIP_ECDH_SIG_OFS = 0,
    MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4,
    MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6,
    MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8,
    MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10,
    MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12,
    MZ_ZIP_ECDH_CDIR_OFS_OFS = 16,
    MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20,
 
    /* ZIP64 End of central directory locator offsets */
    MZ_ZIP64_ECDL_SIG_OFS = 0,                    /* 4 bytes */
    MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS = 4,          /* 4 bytes */
    MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS = 8,  /* 8 bytes */
    MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS = 16, /* 4 bytes */
 
    /* ZIP64 End of central directory header offsets */
    MZ_ZIP64_ECDH_SIG_OFS = 0,                       /* 4 bytes */
    MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS = 4,            /* 8 bytes */
    MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS = 12,          /* 2 bytes */
    MZ_ZIP64_ECDH_VERSION_NEEDED_OFS = 14,           /* 2 bytes */
    MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS = 16,            /* 4 bytes */
    MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS = 20,            /* 4 bytes */
    MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 24, /* 8 bytes */
    MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS = 32,       /* 8 bytes */
    MZ_ZIP64_ECDH_CDIR_SIZE_OFS = 40,                /* 8 bytes */
    MZ_ZIP64_ECDH_CDIR_OFS_OFS = 48,                 /* 8 bytes */
    MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID = 0,
    MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG = 0x10,
    MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED = 1,
    MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG = 32,
    MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION = 64,
    MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED = 8192,
    MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8 = 1 << 11
};

Function Documentation

◆ miniz_def_alloc_func()

void * miniz_def_alloc_func	(	void *	opaque,
		size_t	items,
		size_t	size
	)

{
    (void)opaque, (void)items, (void)size;
    return MZ_MALLOC(items * size);
}

References MZ_MALLOC, and void().

Referenced by mz_deflateInit2(), mz_inflateInit2(), mz_zip_reader_init_internal(), and mz_zip_writer_init_v2().

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◆ miniz_def_free_func()

void miniz_def_free_func	(	void *	opaque,
		void *	address
	)

{
    (void)opaque, (void)address;
    MZ_FREE(address);
}

References MZ_FREE, and void().

Referenced by mz_deflateInit2(), mz_inflateInit2(), mz_zip_reader_init_internal(), and mz_zip_writer_init_v2().

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◆ miniz_def_realloc_func()

void * miniz_def_realloc_func	(	void *	opaque,
		void *	address,
		size_t	items,
		size_t	size
	)

{
    (void)opaque, (void)address, (void)items, (void)size;
    return MZ_REALLOC(address, items * size);
}

References MZ_REALLOC, and void().

Referenced by mz_zip_reader_init_internal(), and mz_zip_writer_init_v2().

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◆ mz_adler32()

mz_ulong mz_adler32	(	mz_ulong	adler,
		const unsigned char *	ptr,
		size_t	buf_len
	)

{
    mz_uint32 i, s1 = (mz_uint32)(adler & 0xffff), s2 = (mz_uint32)(adler >> 16);
    size_t block_len = buf_len % 5552;
    if (!ptr)
        return MZ_ADLER32_INIT;
    while (buf_len)
    {
        for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
        {
            s1 += ptr[0], s2 += s1;
            s1 += ptr[1], s2 += s1;
            s1 += ptr[2], s2 += s1;
            s1 += ptr[3], s2 += s1;
            s1 += ptr[4], s2 += s1;
            s1 += ptr[5], s2 += s1;
            s1 += ptr[6], s2 += s1;
            s1 += ptr[7], s2 += s1;
        }
        for (; i < block_len; ++i)
            s1 += *ptr++, s2 += s1;
        s1 %= 65521U, s2 %= 65521U;
        buf_len -= block_len;
        block_len = 5552;
    }
    return (s2 << 16) + s1;
}

References MZ_ADLER32_INIT.

Referenced by tdefl_compress().

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◆ mz_compress()

int mz_compress	(	unsigned char *	pDest,
		mz_ulong *	pDest_len,
		const unsigned char *	pSource,
		mz_ulong	source_len
	)

{
    return mz_compress2(pDest, pDest_len, pSource, source_len, MZ_DEFAULT_COMPRESSION);
}

References mz_compress2(), and MZ_DEFAULT_COMPRESSION.

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◆ mz_compress2()

int mz_compress2	(	unsigned char *	pDest,
		mz_ulong *	pDest_len,
		const unsigned char *	pSource,
		mz_ulong	source_len,
		int	level
	)

{
    int status;
    mz_stream stream;
    memset(&stream, 0, sizeof(stream));
 
    /* In case mz_ulong is 64-bits (argh I hate longs). */
    if ((source_len | *pDest_len) > 0xFFFFFFFFU)
        return MZ_PARAM_ERROR;
 
    stream.next_in = pSource;
    stream.avail_in = (mz_uint32)source_len;
    stream.next_out = pDest;
    stream.avail_out = (mz_uint32)*pDest_len;
 
    status = mz_deflateInit(&stream, level);
    if (status != MZ_OK)
        return status;
 
    status = mz_deflate(&stream, MZ_FINISH);
    if (status != MZ_STREAM_END)
    {
        mz_deflateEnd(&stream);
        return (status == MZ_OK) ? MZ_BUF_ERROR : status;
    }
 
    *pDest_len = stream.total_out;
    return mz_deflateEnd(&stream);
}

References mz_stream_s::avail_in, mz_stream_s::avail_out, MZ_BUF_ERROR, mz_deflate(), mz_deflateEnd(), mz_deflateInit(), MZ_FINISH, MZ_OK, MZ_PARAM_ERROR, MZ_STREAM_END, mz_stream_s::next_in, mz_stream_s::next_out, and mz_stream_s::total_out.

Referenced by mz_compress().

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◆ mz_compressBound()

mz_ulong mz_compressBound ( mz_ulong source_len )

{
    return mz_deflateBound(NULL, source_len);
}

References mz_deflateBound().

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◆ mz_crc32()

mz_ulong mz_crc32	(	mz_ulong	crc,
		const mz_uint8 *	ptr,
		size_t	buf_len
	)

{
    static const mz_uint32 s_crc_table[256] =
        {
          0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535,
          0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD,
          0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D,
          0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
          0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4,
          0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
          0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC,
          0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
          0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB,
          0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F,
          0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB,
          0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
          0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA,
          0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE,
          0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A,
          0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
          0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409,
          0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
          0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739,
          0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
          0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268,
          0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0,
          0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8,
          0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
          0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF,
          0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703,
          0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7,
          0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
          0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE,
          0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
          0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, 0x88085AE6,
          0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
          0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D,
          0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5,
          0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605,
          0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
          0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
        };
 
    mz_uint32 crc32 = (mz_uint32)crc ^ 0xFFFFFFFF;
    const mz_uint8 *pByte_buf = (const mz_uint8 *)ptr;
 
    while (buf_len >= 4)
    {
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[1]) & 0xFF];
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[2]) & 0xFF];
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[3]) & 0xFF];
        pByte_buf += 4;
        buf_len -= 4;
    }
 
    while (buf_len)
    {
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
        ++pByte_buf;
        --buf_len;
    }
 
    return ~crc32;
}

References crc32.

Referenced by mz_zip_compute_crc32_callback(), mz_zip_reader_extract_iter_read(), mz_zip_reader_extract_to_callback(), mz_zip_reader_extract_to_mem_no_alloc(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), mz_zip_writer_add_staged_data(), and tdefl_write_image_to_png_file_in_memory_ex().

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◆ mz_deflate()

int mz_deflate	(	mz_streamp	pStream,
		int	flush
	)

{
    size_t in_bytes, out_bytes;
    mz_ulong orig_total_in, orig_total_out;
    int mz_status = MZ_OK;
 
    if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > MZ_FINISH) || (!pStream->next_out))
        return MZ_STREAM_ERROR;
    if (!pStream->avail_out)
        return MZ_BUF_ERROR;
 
    if (flush == MZ_PARTIAL_FLUSH)
        flush = MZ_SYNC_FLUSH;
 
    if (((tdefl_compressor *)pStream->state)->m_prev_return_status == TDEFL_STATUS_DONE)
        return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR;
 
    orig_total_in = pStream->total_in;
    orig_total_out = pStream->total_out;
    for (;;)
    {
        tdefl_status defl_status;
        in_bytes = pStream->avail_in;
        out_bytes = pStream->avail_out;
 
        defl_status = tdefl_compress((tdefl_compressor *)pStream->state, pStream->next_in, &in_bytes, pStream->next_out, &out_bytes, (tdefl_flush)flush);
        pStream->next_in += (mz_uint)in_bytes;
        pStream->avail_in -= (mz_uint)in_bytes;
        pStream->total_in += (mz_uint)in_bytes;
        pStream->adler = tdefl_get_adler32((tdefl_compressor *)pStream->state);
 
        pStream->next_out += (mz_uint)out_bytes;
        pStream->avail_out -= (mz_uint)out_bytes;
        pStream->total_out += (mz_uint)out_bytes;
 
        if (defl_status < 0)
        {
            mz_status = MZ_STREAM_ERROR;
            break;
        }
        else if (defl_status == TDEFL_STATUS_DONE)
        {
            mz_status = MZ_STREAM_END;
            break;
        }
        else if (!pStream->avail_out)
            break;
        else if ((!pStream->avail_in) && (flush != MZ_FINISH))
        {
            if ((flush) || (pStream->total_in != orig_total_in) || (pStream->total_out != orig_total_out))
                break;
            return MZ_BUF_ERROR; /* Can't make forward progress without some input.
 */
        }
    }
    return mz_status;
}

References mz_stream_s::adler, mz_stream_s::avail_in, mz_stream_s::avail_out, MZ_BUF_ERROR, MZ_FINISH, MZ_OK, MZ_PARTIAL_FLUSH, MZ_STREAM_END, MZ_STREAM_ERROR, MZ_SYNC_FLUSH, mz_stream_s::next_in, mz_stream_s::next_out, mz_stream_s::state, tdefl_compress(), tdefl_get_adler32(), TDEFL_STATUS_DONE, mz_stream_s::total_in, and mz_stream_s::total_out.

Referenced by mz_compress2().

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◆ mz_deflateBound()

mz_ulong mz_deflateBound	(	mz_streamp	pStream,
		mz_ulong	source_len
	)

{
    (void)pStream;
    /* This is really over conservative. (And lame, but it's actually pretty tricky to compute a true upper bound given the way tdefl's blocking works.) */
    return MZ_MAX(128 + (source_len * 110) / 100, 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5);
}

References MZ_MAX, and void().

Referenced by mz_compressBound().

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◆ mz_deflateEnd()

int mz_deflateEnd ( mz_streamp pStream )

{
    if (!pStream)
        return MZ_STREAM_ERROR;
    if (pStream->state)
    {
        pStream->zfree(pStream->opaque, pStream->state);
        pStream->state = NULL;
    }
    return MZ_OK;
}

References MZ_OK, MZ_STREAM_ERROR, mz_stream_s::opaque, mz_stream_s::state, and mz_stream_s::zfree.

Referenced by mz_compress2(), and mz_deflateInit2().

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◆ mz_deflateInit()

int mz_deflateInit	(	mz_streamp	pStream,
		int	level
	)

{
    return mz_deflateInit2(pStream, level, MZ_DEFLATED, MZ_DEFAULT_WINDOW_BITS, 9, MZ_DEFAULT_STRATEGY);
}

References MZ_DEFAULT_STRATEGY, MZ_DEFAULT_WINDOW_BITS, MZ_DEFLATED, and mz_deflateInit2().

Referenced by mz_compress2().

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◆ mz_deflateInit2()

int mz_deflateInit2	(	mz_streamp	pStream,
		int	level,
		int	method,
		int	window_bits,
		int	mem_level,
		int	strategy
	)

{
    tdefl_compressor *pComp;
    mz_uint comp_flags = TDEFL_COMPUTE_ADLER32 | tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy);
 
    if (!pStream)
        return MZ_STREAM_ERROR;
    if ((method != MZ_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS)))
        return MZ_PARAM_ERROR;
 
    pStream->data_type = 0;
    pStream->adler = MZ_ADLER32_INIT;
    pStream->msg = NULL;
    pStream->reserved = 0;
    pStream->total_in = 0;
    pStream->total_out = 0;
    if (!pStream->zalloc)
        pStream->zalloc = miniz_def_alloc_func;
    if (!pStream->zfree)
        pStream->zfree = miniz_def_free_func;
 
    pComp = (tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, sizeof(tdefl_compressor));
    if (!pComp)
        return MZ_MEM_ERROR;
 
    pStream->state = (struct mz_internal_state *)pComp;
 
    if (tdefl_init(pComp, NULL, NULL, comp_flags) != TDEFL_STATUS_OKAY)
    {
        mz_deflateEnd(pStream);
        return MZ_PARAM_ERROR;
    }
 
    return MZ_OK;
}

References mz_stream_s::adler, mz_stream_s::data_type, miniz_def_alloc_func(), miniz_def_free_func(), mz_stream_s::msg, MZ_ADLER32_INIT, MZ_DEFAULT_WINDOW_BITS, MZ_DEFLATED, mz_deflateEnd(), MZ_MEM_ERROR, MZ_OK, MZ_PARAM_ERROR, MZ_STREAM_ERROR, mz_stream_s::opaque, mz_stream_s::reserved, mz_stream_s::state, TDEFL_COMPUTE_ADLER32, tdefl_create_comp_flags_from_zip_params(), tdefl_init(), TDEFL_STATUS_OKAY, mz_stream_s::total_in, mz_stream_s::total_out, mz_stream_s::zalloc, and mz_stream_s::zfree.

Referenced by mz_deflateInit().

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◆ mz_deflateReset()

int mz_deflateReset ( mz_streamp pStream )

{
    if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || (!pStream->zfree))
        return MZ_STREAM_ERROR;
    pStream->total_in = pStream->total_out = 0;
    tdefl_init((tdefl_compressor *)pStream->state, NULL, NULL, ((tdefl_compressor *)pStream->state)->m_flags);
    return MZ_OK;
}

References MZ_OK, MZ_STREAM_ERROR, mz_stream_s::state, tdefl_init(), mz_stream_s::total_in, mz_stream_s::total_out, mz_stream_s::zalloc, and mz_stream_s::zfree.

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◆ mz_error()

const char * mz_error ( int err )

{
    static struct
    {
        int m_err;
        const char *m_pDesc;
    } s_error_descs[] =
        {
          { MZ_OK, "" }, { MZ_STREAM_END, "stream end" }, { MZ_NEED_DICT, "need dictionary" }, { MZ_ERRNO, "file error" }, { MZ_STREAM_ERROR, "stream error" }, { MZ_DATA_ERROR, "data error" }, { MZ_MEM_ERROR, "out of memory" }, { MZ_BUF_ERROR, "buf error" }, { MZ_VERSION_ERROR, "version error" }, { MZ_PARAM_ERROR, "parameter error" }
        };
    mz_uint i;
    for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i)
        if (s_error_descs[i].m_err == err)
            return s_error_descs[i].m_pDesc;
    return NULL;
}

References MZ_BUF_ERROR, MZ_DATA_ERROR, MZ_ERRNO, MZ_MEM_ERROR, MZ_NEED_DICT, MZ_OK, MZ_PARAM_ERROR, MZ_STREAM_END, MZ_STREAM_ERROR, and MZ_VERSION_ERROR.

◆ mz_file_read_func_stdio()

static size_t mz_file_read_func_stdio	(	void *	pOpaque,
		mz_uint64	file_ofs,
		void *	pBuf,
		size_t	n
	)

static

{
  MZ_FILE *pSrc_file = (MZ_FILE *)pOpaque;
  mz_int64 cur_ofs = MZ_FTELL64(pSrc_file);
 
  if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pSrc_file, (mz_int64)file_ofs, SEEK_SET))))
    return 0;
 
  return MZ_FREAD(pBuf, 1, n, pSrc_file);
}

References MZ_FILE, MZ_FREAD, MZ_FSEEK64, MZ_FTELL64, and SEEK_SET.

Referenced by mz_zip_writer_add_cfile().

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◆ mz_free()

void mz_free ( void * p )

{
    MZ_FREE(p);
}

References MZ_FREE.

Referenced by Slic3r::GCodeThumbnails::CompressedPNG::~CompressedPNG(), Slic3r::_3MF_Exporter::_add_thumbnail_file_to_archive(), and Slic3r::write_thumbnail().

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◆ mz_inflate()

int mz_inflate	(	mz_streamp	pStream,
		int	flush
	)

{
    inflate_state *pState;
    mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32;
    size_t in_bytes, out_bytes, orig_avail_in;
    tinfl_status status;
 
    if ((!pStream) || (!pStream->state))
        return MZ_STREAM_ERROR;
    if (flush == MZ_PARTIAL_FLUSH)
        flush = MZ_SYNC_FLUSH;
    if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH))
        return MZ_STREAM_ERROR;
 
    pState = (inflate_state *)pStream->state;
    if (pState->m_window_bits > 0)
        decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER;
    orig_avail_in = pStream->avail_in;
 
    first_call = pState->m_first_call;
    pState->m_first_call = 0;
    if (pState->m_last_status < 0)
        return MZ_DATA_ERROR;
 
    if (pState->m_has_flushed && (flush != MZ_FINISH))
        return MZ_STREAM_ERROR;
    pState->m_has_flushed |= (flush == MZ_FINISH);
 
    if ((flush == MZ_FINISH) && (first_call))
    {
        /* MZ_FINISH on the first call implies that the input and output buffers are large enough to hold the entire compressed/decompressed file. */
        decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF;
        in_bytes = pStream->avail_in;
        out_bytes = pStream->avail_out;
        status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pStream->next_out, pStream->next_out, &out_bytes, decomp_flags);
        pState->m_last_status = status;
        pStream->next_in += (mz_uint)in_bytes;
        pStream->avail_in -= (mz_uint)in_bytes;
        pStream->total_in += (mz_uint)in_bytes;
        pStream->adler = tinfl_get_adler32(&pState->m_decomp);
        pStream->next_out += (mz_uint)out_bytes;
        pStream->avail_out -= (mz_uint)out_bytes;
        pStream->total_out += (mz_uint)out_bytes;
 
        if (status < 0)
            return MZ_DATA_ERROR;
        else if (status != TINFL_STATUS_DONE)
        {
            pState->m_last_status = TINFL_STATUS_FAILED;
            return MZ_BUF_ERROR;
        }
        return MZ_STREAM_END;
    }
    /* flush != MZ_FINISH then we must assume there's more input. */
    if (flush != MZ_FINISH)
        decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT;
 
    if (pState->m_dict_avail)
    {
        n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
        memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
        pStream->next_out += n;
        pStream->avail_out -= n;
        pStream->total_out += n;
        pState->m_dict_avail -= n;
        pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);
        return ((pState->m_last_status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
    }
 
    for (;;)
    {
        in_bytes = pStream->avail_in;
        out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs;
 
        status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags);
        pState->m_last_status = status;
 
        pStream->next_in += (mz_uint)in_bytes;
        pStream->avail_in -= (mz_uint)in_bytes;
        pStream->total_in += (mz_uint)in_bytes;
        pStream->adler = tinfl_get_adler32(&pState->m_decomp);
 
        pState->m_dict_avail = (mz_uint)out_bytes;
 
        n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
        memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
        pStream->next_out += n;
        pStream->avail_out -= n;
        pStream->total_out += n;
        pState->m_dict_avail -= n;
        pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);
 
        if (status < 0)
            return MZ_DATA_ERROR; /* Stream is corrupted (there could be some uncompressed data left in the output dictionary - oh well). */
        else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in))
            return MZ_BUF_ERROR; /* Signal caller that we can't make forward progress without supplying more input or by setting flush to MZ_FINISH. */
        else if (flush == MZ_FINISH)
        {
            /* The output buffer MUST be large to hold the remaining uncompressed data when flush==MZ_FINISH. */
            if (status == TINFL_STATUS_DONE)
                return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END;
            /* status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means there's at least 1 more byte on the way. If there's no more room left in the output buffer then something is wrong. */
            else if (!pStream->avail_out)
                return MZ_BUF_ERROR;
        }
        else if ((status == TINFL_STATUS_DONE) || (!pStream->avail_in) || (!pStream->avail_out) || (pState->m_dict_avail))
            break;
    }
 
    return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
}

References mz_stream_s::adler, mz_stream_s::avail_in, mz_stream_s::avail_out, inflate_state::m_decomp, inflate_state::m_dict, inflate_state::m_dict_avail, inflate_state::m_dict_ofs, inflate_state::m_first_call, inflate_state::m_has_flushed, inflate_state::m_last_status, inflate_state::m_window_bits, MZ_BUF_ERROR, MZ_DATA_ERROR, MZ_FINISH, MZ_MIN, MZ_OK, MZ_PARTIAL_FLUSH, MZ_STREAM_END, MZ_STREAM_ERROR, MZ_SYNC_FLUSH, mz_stream_s::next_in, mz_stream_s::next_out, mz_stream_s::state, tinfl_decompress(), TINFL_FLAG_COMPUTE_ADLER32, TINFL_FLAG_HAS_MORE_INPUT, TINFL_FLAG_PARSE_ZLIB_HEADER, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF, tinfl_get_adler32, TINFL_LZ_DICT_SIZE, TINFL_STATUS_DONE, TINFL_STATUS_FAILED, TINFL_STATUS_NEEDS_MORE_INPUT, mz_stream_s::total_in, and mz_stream_s::total_out.

Referenced by mz_uncompress().

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◆ mz_inflateEnd()

int mz_inflateEnd ( mz_streamp pStream )

{
    if (!pStream)
        return MZ_STREAM_ERROR;
    if (pStream->state)
    {
        pStream->zfree(pStream->opaque, pStream->state);
        pStream->state = NULL;
    }
    return MZ_OK;
}

References MZ_OK, MZ_STREAM_ERROR, mz_stream_s::opaque, mz_stream_s::state, and mz_stream_s::zfree.

Referenced by mz_uncompress().

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◆ mz_inflateInit()

int mz_inflateInit ( mz_streamp pStream )

{
    return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS);
}

References MZ_DEFAULT_WINDOW_BITS, and mz_inflateInit2().

Referenced by mz_uncompress().

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◆ mz_inflateInit2()

int mz_inflateInit2	(	mz_streamp	pStream,
		int	window_bits
	)

{
    inflate_state *pDecomp;
    if (!pStream)
        return MZ_STREAM_ERROR;
    if ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS))
        return MZ_PARAM_ERROR;
 
    pStream->data_type = 0;
    pStream->adler = 0;
    pStream->msg = NULL;
    pStream->total_in = 0;
    pStream->total_out = 0;
    pStream->reserved = 0;
    if (!pStream->zalloc)
        pStream->zalloc = miniz_def_alloc_func;
    if (!pStream->zfree)
        pStream->zfree = miniz_def_free_func;
 
    pDecomp = (inflate_state *)pStream->zalloc(pStream->opaque, 1, sizeof(inflate_state));
    if (!pDecomp)
        return MZ_MEM_ERROR;
 
    pStream->state = (struct mz_internal_state *)pDecomp;
 
    tinfl_init(&pDecomp->m_decomp);
    pDecomp->m_dict_ofs = 0;
    pDecomp->m_dict_avail = 0;
    pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
    pDecomp->m_first_call = 1;
    pDecomp->m_has_flushed = 0;
    pDecomp->m_window_bits = window_bits;
 
    return MZ_OK;
}

References mz_stream_s::adler, mz_stream_s::data_type, inflate_state::m_decomp, inflate_state::m_dict_avail, inflate_state::m_dict_ofs, inflate_state::m_first_call, inflate_state::m_has_flushed, inflate_state::m_last_status, inflate_state::m_window_bits, miniz_def_alloc_func(), miniz_def_free_func(), mz_stream_s::msg, MZ_DEFAULT_WINDOW_BITS, MZ_MEM_ERROR, MZ_OK, MZ_PARAM_ERROR, MZ_STREAM_ERROR, mz_stream_s::opaque, mz_stream_s::reserved, mz_stream_s::state, tinfl_init, TINFL_STATUS_NEEDS_MORE_INPUT, mz_stream_s::total_in, mz_stream_s::total_out, mz_stream_s::zalloc, and mz_stream_s::zfree.

Referenced by mz_inflateInit().

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◆ mz_inflateReset()

int mz_inflateReset ( mz_streamp pStream )

{
    inflate_state *pDecomp;
    if (!pStream)
        return MZ_STREAM_ERROR;
 
    pStream->data_type = 0;
    pStream->adler = 0;
    pStream->msg = NULL;
    pStream->total_in = 0;
    pStream->total_out = 0;
    pStream->reserved = 0;
 
    pDecomp = (inflate_state *)pStream->state;
 
    tinfl_init(&pDecomp->m_decomp);
    pDecomp->m_dict_ofs = 0;
    pDecomp->m_dict_avail = 0;
    pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
    pDecomp->m_first_call = 1;
    pDecomp->m_has_flushed = 0;
    /* pDecomp->m_window_bits = window_bits */;
 
    return MZ_OK;
}

References mz_stream_s::adler, mz_stream_s::data_type, inflate_state::m_decomp, inflate_state::m_dict_avail, inflate_state::m_dict_ofs, inflate_state::m_first_call, inflate_state::m_has_flushed, inflate_state::m_last_status, mz_stream_s::msg, MZ_OK, MZ_STREAM_ERROR, mz_stream_s::reserved, mz_stream_s::state, tinfl_init, TINFL_STATUS_NEEDS_MORE_INPUT, mz_stream_s::total_in, and mz_stream_s::total_out.

◆ mz_uncompress()

int mz_uncompress	(	unsigned char *	pDest,
		mz_ulong *	pDest_len,
		const unsigned char *	pSource,
		mz_ulong	source_len
	)

{
    mz_stream stream;
    int status;
    memset(&stream, 0, sizeof(stream));
 
    /* In case mz_ulong is 64-bits (argh I hate longs). */
    if ((source_len | *pDest_len) > 0xFFFFFFFFU)
        return MZ_PARAM_ERROR;
 
    stream.next_in = pSource;
    stream.avail_in = (mz_uint32)source_len;
    stream.next_out = pDest;
    stream.avail_out = (mz_uint32)*pDest_len;
 
    status = mz_inflateInit(&stream);
    if (status != MZ_OK)
        return status;
 
    status = mz_inflate(&stream, MZ_FINISH);
    if (status != MZ_STREAM_END)
    {
        mz_inflateEnd(&stream);
        return ((status == MZ_BUF_ERROR) && (!stream.avail_in)) ? MZ_DATA_ERROR : status;
    }
    *pDest_len = stream.total_out;
 
    return mz_inflateEnd(&stream);
}

References mz_stream_s::avail_in, mz_stream_s::avail_out, MZ_BUF_ERROR, MZ_DATA_ERROR, MZ_FINISH, mz_inflate(), mz_inflateEnd(), mz_inflateInit(), MZ_OK, MZ_PARAM_ERROR, MZ_STREAM_END, mz_stream_s::next_in, mz_stream_s::next_out, and mz_stream_s::total_out.

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◆ mz_version()

const char * mz_version ( void )

{
    return MZ_VERSION;
}

References MZ_VERSION.

◆ mz_write_le16()

static MZ_FORCEINLINE void mz_write_le16	(	mz_uint8 *	p,
		mz_uint16	v
	)

static

{
    p[0] = (mz_uint8)v;
    p[1] = (mz_uint8)(v >> 8);
}

Referenced by mz_zip_writer_update_zip64_extension_block().

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◆ mz_write_le32()

static MZ_FORCEINLINE void mz_write_le32	(	mz_uint8 *	p,
		mz_uint32	v
	)

static

{
    p[0] = (mz_uint8)v;
    p[1] = (mz_uint8)(v >> 8);
    p[2] = (mz_uint8)(v >> 16);
    p[3] = (mz_uint8)(v >> 24);
}

Referenced by mz_write_le64(), mz_zip_writer_add_from_zip_reader(), and mz_zip_writer_update_zip64_extension_block().

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◆ mz_write_le64()

static MZ_FORCEINLINE void mz_write_le64	(	mz_uint8 *	p,
		mz_uint64	v
	)

static

{
    mz_write_le32(p, (mz_uint32)v);
    mz_write_le32(p + sizeof(mz_uint32), (mz_uint32)(v >> 32));
}

References mz_write_le32().

Referenced by mz_zip_writer_add_from_zip_reader(), and mz_zip_writer_update_zip64_extension_block().

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◆ mz_zip_add_mem_to_archive_file_in_place()

mz_bool mz_zip_add_mem_to_archive_file_in_place	(	const char *	pZip_filename,
		const char *	pArchive_name,
		const void *	pBuf,
		size_t	buf_size,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags
	)

{
    return mz_zip_add_mem_to_archive_file_in_place_v2(pZip_filename, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, NULL);
}

References mz_zip_add_mem_to_archive_file_in_place_v2().

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◆ mz_zip_add_mem_to_archive_file_in_place_v2()

mz_bool mz_zip_add_mem_to_archive_file_in_place_v2	(	const char *	pZip_filename,
		const char *	pArchive_name,
		const void *	pBuf,
		size_t	buf_size,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		mz_zip_error *	pErr
	)

{
    mz_bool status, created_new_archive = MZ_FALSE;
    mz_zip_archive zip_archive;
    struct MZ_FILE_STAT_STRUCT file_stat;
    mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
 
    mz_zip_zero_struct(&zip_archive);
    if ((int)level_and_flags < 0)
        level_and_flags = MZ_DEFAULT_LEVEL;
 
    if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) || ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION))
    {
        if (pErr)
            *pErr = MZ_ZIP_INVALID_PARAMETER;
        return MZ_FALSE;
    }
 
    if (!mz_zip_writer_validate_archive_name(pArchive_name))
    {
        if (pErr)
            *pErr = MZ_ZIP_INVALID_FILENAME;
        return MZ_FALSE;
    }
 
    /* Important: The regular non-64 bit version of stat() can fail here if the file is very large, which could cause the archive to be overwritten. */
    /* So be sure to compile with _LARGEFILE64_SOURCE 1 */
    if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0)
    {
        /* Create a new archive. */
        if (!mz_zip_writer_init_file_v2(&zip_archive, pZip_filename, 0, level_and_flags))
        {
            if (pErr)
                *pErr = zip_archive.m_last_error;
            return MZ_FALSE;
        }
 
        created_new_archive = MZ_TRUE;
    }
    else
    {
        /* Append to an existing archive. */
        if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, level_and_flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0))
        {
            if (pErr)
                *pErr = zip_archive.m_last_error;
            return MZ_FALSE;
        }
 
        if (!mz_zip_writer_init_from_reader_v2(&zip_archive, pZip_filename, level_and_flags))
        {
            if (pErr)
                *pErr = zip_archive.m_last_error;
 
            mz_zip_reader_end_internal(&zip_archive, MZ_FALSE);
 
            return MZ_FALSE;
        }
    }
 
    status = mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, 0, 0);
    actual_err = zip_archive.m_last_error;
 
    /* Always finalize, even if adding failed for some reason, so we have a valid central directory. (This may not always succeed, but we can try.) */
    if (!mz_zip_writer_finalize_archive(&zip_archive))
    {
        if (!actual_err)
            actual_err = zip_archive.m_last_error;
 
        status = MZ_FALSE;
    }
 
    if (!mz_zip_writer_end_internal(&zip_archive, status))
    {
        if (!actual_err)
            actual_err = zip_archive.m_last_error;
 
        status = MZ_FALSE;
    }
 
    if ((!status) && (created_new_archive))
    {
        /* It's a new archive and something went wrong, so just delete it. */
        int ignoredStatus = MZ_DELETE_FILE(pZip_filename);
        (void)ignoredStatus;
    }
 
    if (pErr)
        *pErr = actual_err;
 
    return status;
}

References mz_zip_archive::m_last_error, MZ_DEFAULT_LEVEL, MZ_DELETE_FILE, MZ_FALSE, MZ_FILE_STAT, MZ_FILE_STAT_STRUCT, MZ_TRUE, MZ_UBER_COMPRESSION, MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, MZ_ZIP_INVALID_FILENAME, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_NO_ERROR, mz_zip_reader_end_internal(), mz_zip_reader_init_file_v2(), mz_zip_writer_add_mem_ex(), mz_zip_writer_end_internal(), mz_zip_writer_finalize_archive(), mz_zip_writer_init_file_v2(), mz_zip_writer_init_from_reader_v2(), mz_zip_writer_validate_archive_name(), mz_zip_zero_struct(), and void().

Referenced by mz_zip_add_mem_to_archive_file_in_place().

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◆ mz_zip_array_clear()

static MZ_FORCEINLINE void mz_zip_array_clear	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray
	)

static

{
    pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p);
    memset(pArray, 0, sizeof(mz_zip_array));
}

References mz_zip_array::m_p, mz_zip_archive::m_pAlloc_opaque, and mz_zip_archive::m_pFree.

Referenced by mz_zip_reader_end_internal(), mz_zip_validate_file(), mz_zip_writer_add_from_zip_reader(), mz_zip_writer_end_internal(), and mz_zip_writer_init_from_reader_v2().

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◆ mz_zip_array_ensure_capacity()

static mz_bool mz_zip_array_ensure_capacity	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray,
		size_t	min_new_capacity,
		mz_uint	growing
	)

static

{
    void *pNew_p;
    size_t new_capacity = min_new_capacity;
    MZ_ASSERT(pArray->m_element_size);
    if (pArray->m_capacity >= min_new_capacity)
        return MZ_TRUE;
    if (growing)
    {
        new_capacity = MZ_MAX(1, pArray->m_capacity);
        while (new_capacity < min_new_capacity)
            new_capacity *= 2;
    }
    if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, pArray->m_element_size, new_capacity)))
        return MZ_FALSE;
    pArray->m_p = pNew_p;
    pArray->m_capacity = new_capacity;
    return MZ_TRUE;
}

References mz_zip_array::m_capacity, mz_zip_array::m_element_size, mz_zip_array::m_p, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pRealloc, MZ_ASSERT, MZ_FALSE, MZ_MAX, and MZ_TRUE.

Referenced by mz_zip_array_reserve(), and mz_zip_array_resize().

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◆ mz_zip_array_ensure_room()

static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray,
		size_t	n
	)

static

{
    return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, MZ_TRUE);
}

References mz_zip_array::m_size, MZ_TRUE, and mz_zip_array_reserve().

Referenced by mz_zip_writer_add_mem_ex_v2().

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◆ mz_zip_array_init()

static MZ_FORCEINLINE void mz_zip_array_init	(	mz_zip_array *	pArray,
		mz_uint32	element_size
	)

static

{
    memset(pArray, 0, sizeof(mz_zip_array));
    pArray->m_element_size = element_size;
}

References mz_zip_array::m_element_size.

Referenced by mz_zip_validate_file(), and mz_zip_writer_add_from_zip_reader().

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◆ mz_zip_array_push_back()

static MZ_FORCEINLINE mz_bool mz_zip_array_push_back	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray,
		const void *	pElements,
		size_t	n
	)

static

{
    size_t orig_size = pArray->m_size;
    if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE))
        return MZ_FALSE;
    if (n > 0)
        memcpy((mz_uint8 *)pArray->m_p + orig_size * pArray->m_element_size, pElements, n * pArray->m_element_size);
    return MZ_TRUE;
}

References mz_zip_array::m_element_size, mz_zip_array::m_p, mz_zip_array::m_size, MZ_FALSE, MZ_TRUE, and mz_zip_array_resize().

Referenced by mz_zip_writer_add_from_zip_reader(), mz_zip_writer_add_to_central_dir(), and mz_zip_writer_update_zip64_extension_block().

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◆ mz_zip_array_reserve()

static MZ_FORCEINLINE mz_bool mz_zip_array_reserve	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray,
		size_t	new_capacity,
		mz_uint	growing
	)

static

{
    if (new_capacity > pArray->m_capacity)
    {
        if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing))
            return MZ_FALSE;
    }
    return MZ_TRUE;
}

References mz_zip_array::m_capacity, MZ_FALSE, MZ_TRUE, and mz_zip_array_ensure_capacity().

Referenced by mz_zip_array_ensure_room(), and mz_zip_writer_update_zip64_extension_block().

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◆ mz_zip_array_resize()

static MZ_FORCEINLINE mz_bool mz_zip_array_resize	(	mz_zip_archive *	pZip,
		mz_zip_array *	pArray,
		size_t	new_size,
		mz_uint	growing
	)

static

{
    if (new_size > pArray->m_capacity)
    {
        if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing))
            return MZ_FALSE;
    }
    pArray->m_size = new_size;
    return MZ_TRUE;
}

References mz_zip_array::m_capacity, mz_zip_array::m_size, MZ_FALSE, MZ_TRUE, and mz_zip_array_ensure_capacity().

Referenced by mz_zip_array_push_back(), mz_zip_reader_read_central_dir(), mz_zip_validate_file(), mz_zip_writer_add_from_zip_reader(), mz_zip_writer_add_to_central_dir(), and mz_zip_writer_update_zip64_extension_block().

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◆ mz_zip_clear_last_error()

mz_zip_error mz_zip_clear_last_error ( mz_zip_archive * pZip )

{
    return mz_zip_set_last_error(pZip, MZ_ZIP_NO_ERROR);
}

References MZ_ZIP_NO_ERROR, and mz_zip_set_last_error().

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◆ mz_zip_compute_crc32_callback()

static size_t mz_zip_compute_crc32_callback	(	void *	pOpaque,
		mz_uint64	file_ofs,
		const void *	pBuf,
		size_t	n
	)

static

{
    mz_uint32 *p = (mz_uint32 *)pOpaque;
    (void)file_ofs;
    *p = (mz_uint32)mz_crc32(*p, (const mz_uint8 *)pBuf, n);
    return n;
}

References mz_crc32(), and void().

Referenced by mz_zip_validate_file().

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◆ mz_zip_dos_to_time_t()

static MZ_TIME_T mz_zip_dos_to_time_t	(	int	dos_time,
		int	dos_date
	)

static

{
    struct tm tm;
    memset(&tm, 0, sizeof(tm));
    tm.tm_isdst = -1;
    tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900;
    tm.tm_mon = ((dos_date >> 5) & 15) - 1;
    tm.tm_mday = dos_date & 31;
    tm.tm_hour = (dos_time >> 11) & 31;
    tm.tm_min = (dos_time >> 5) & 63;
    tm.tm_sec = (dos_time << 1) & 62;
    return mktime(&tm);
}

Referenced by mz_zip_file_stat_internal().

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◆ mz_zip_end()

mz_bool mz_zip_end ( mz_zip_archive * pZip )

{
    if (!pZip)
        return MZ_FALSE;
 
    if (pZip->m_zip_mode == MZ_ZIP_MODE_READING)
        return mz_zip_reader_end(pZip);
#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
    else if ((pZip->m_zip_mode == MZ_ZIP_MODE_WRITING) || (pZip->m_zip_mode == MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))
        return mz_zip_writer_end(pZip);
#endif
 
    return MZ_FALSE;
}

References mz_zip_archive::m_zip_mode, MZ_FALSE, MZ_ZIP_MODE_READING, MZ_ZIP_MODE_WRITING, MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED, mz_zip_reader_end(), and mz_zip_writer_end().

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◆ mz_zip_extract_archive_file_to_heap()

void * mz_zip_extract_archive_file_to_heap	(	const char *	pZip_filename,
		const char *	pArchive_name,
		size_t *	pSize,
		mz_uint	flags
	)

{
    return mz_zip_extract_archive_file_to_heap_v2(pZip_filename, pArchive_name, NULL, pSize, flags, NULL);
}

References mz_zip_extract_archive_file_to_heap_v2().

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◆ mz_zip_extract_archive_file_to_heap_v2()

void * mz_zip_extract_archive_file_to_heap_v2	(	const char *	pZip_filename,
		const char *	pArchive_name,
		const char *	pComment,
		size_t *	pSize,
		mz_uint	flags,
		mz_zip_error *	pErr
	)

{
    mz_uint32 file_index;
    mz_zip_archive zip_archive;
    void *p = NULL;
 
    if (pSize)
        *pSize = 0;
 
    if ((!pZip_filename) || (!pArchive_name))
    {
        if (pErr)
            *pErr = MZ_ZIP_INVALID_PARAMETER;
 
        return NULL;
    }
 
    mz_zip_zero_struct(&zip_archive);
    if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0))
    {
        if (pErr)
            *pErr = zip_archive.m_last_error;
 
        return NULL;
    }
 
    if (mz_zip_reader_locate_file_v2(&zip_archive, pArchive_name, pComment, flags, &file_index))
    {
        p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags);
    }
 
    mz_zip_reader_end_internal(&zip_archive, p != NULL);
 
    if (pErr)
        *pErr = zip_archive.m_last_error;
 
    return p;
}

References mz_zip_archive::m_last_error, MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, MZ_ZIP_INVALID_PARAMETER, mz_zip_reader_end_internal(), mz_zip_reader_extract_to_heap(), mz_zip_reader_init_file_v2(), mz_zip_reader_locate_file_v2(), and mz_zip_zero_struct().

Referenced by mz_zip_extract_archive_file_to_heap().

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◆ mz_zip_file_read_func()

static size_t mz_zip_file_read_func	(	void *	pOpaque,
		mz_uint64	file_ofs,
		void *	pBuf,
		size_t	n
	)

static

{
    mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
    mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
 
    file_ofs += pZip->m_pState->m_file_archive_start_ofs;
 
    if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
        return 0;
 
    return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile);
}

References mz_zip_internal_state_tag::m_file_archive_start_ofs, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pState, MZ_FREAD, MZ_FSEEK64, MZ_FTELL64, and SEEK_SET.

Referenced by mz_zip_reader_init_cfile(), mz_zip_reader_init_file_v2(), mz_zip_writer_init_cfile(), and mz_zip_writer_init_file_v2().

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◆ mz_zip_file_stat_internal()

static mz_bool mz_zip_file_stat_internal	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		const mz_uint8 *	pCentral_dir_header,
		mz_zip_archive_file_stat *	pStat,
		mz_bool *	pFound_zip64_extra_data
	)

static

{
    mz_uint n;
    const mz_uint8 *p = pCentral_dir_header;
 
    if (pFound_zip64_extra_data)
        *pFound_zip64_extra_data = MZ_FALSE;
 
    if ((!p) || (!pStat))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    /* Extract fields from the central directory record. */
    pStat->m_file_index = file_index;
    pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index);
    pStat->m_version_made_by = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS);
    pStat->m_version_needed = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_NEEDED_OFS);
    pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
    pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
#ifndef MINIZ_NO_TIME
    pStat->m_time = mz_zip_dos_to_time_t(MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS), MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS));
#endif
    pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS);
    pStat->m_comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
    pStat->m_uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
    pStat->m_internal_attr = MZ_READ_LE16(p + MZ_ZIP_CDH_INTERNAL_ATTR_OFS);
    pStat->m_external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
    pStat->m_local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
 
    /* Copy as much of the filename and comment as possible. */
    n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1);
    memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
    pStat->m_filename[n] = '\0';
 
    n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS);
    n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1);
    pStat->m_comment_size = n;
    memcpy(pStat->m_comment, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS), n);
    pStat->m_comment[n] = '\0';
 
    /* Set some flags for convienance */
    pStat->m_is_directory = mz_zip_reader_is_file_a_directory(pZip, file_index);
    pStat->m_is_encrypted = mz_zip_reader_is_file_encrypted(pZip, file_index);
    pStat->m_is_supported = mz_zip_reader_is_file_supported(pZip, file_index);
 
    /* See if we need to read any zip64 extended information fields. */
    /* Confusingly, these zip64 fields can be present even on non-zip64 archives (Debian zip on a huge files from stdin piped to stdout creates them). */
    if (MZ_MAX(MZ_MAX(pStat->m_comp_size, pStat->m_uncomp_size), pStat->m_local_header_ofs) == MZ_UINT32_MAX)
    {
        /* Attempt to find zip64 extended information field in the entry's extra data */
        mz_uint32 extra_size_remaining = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
 
        if (extra_size_remaining)
        {
            const mz_uint8 *pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
 
            do
            {
                mz_uint32 field_id;
                mz_uint32 field_data_size;
 
                if (extra_size_remaining < (sizeof(mz_uint16) * 2))
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
                field_id = MZ_READ_LE16(pExtra_data);
                field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
 
                if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining)
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
                if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
                {
                    const mz_uint8 *pField_data = pExtra_data + sizeof(mz_uint16) * 2;
                    mz_uint32 field_data_remaining = field_data_size;
 
                    if (pFound_zip64_extra_data)
                        *pFound_zip64_extra_data = MZ_TRUE;
 
                    if (pStat->m_uncomp_size == MZ_UINT32_MAX)
                    {
                        if (field_data_remaining < sizeof(mz_uint64))
                            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
                        pStat->m_uncomp_size = MZ_READ_LE64(pField_data);
                        pField_data += sizeof(mz_uint64);
                        field_data_remaining -= sizeof(mz_uint64);
                    }
 
                    if (pStat->m_comp_size == MZ_UINT32_MAX)
                    {
                        if (field_data_remaining < sizeof(mz_uint64))
                            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
                        pStat->m_comp_size = MZ_READ_LE64(pField_data);
                        pField_data += sizeof(mz_uint64);
                        field_data_remaining -= sizeof(mz_uint64);
                    }
 
                    if (pStat->m_local_header_ofs == MZ_UINT32_MAX)
                    {
                        if (field_data_remaining < sizeof(mz_uint64))
                            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
                        pStat->m_local_header_ofs = MZ_READ_LE64(pField_data);
                        pField_data += sizeof(mz_uint64);
                        field_data_remaining -= sizeof(mz_uint64);
                    }
 
                    break;
                }
 
                pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
                extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size;
            } while (extra_size_remaining);
        }
    }
 
    return MZ_TRUE;
}

Referenced by mz_zip_reader_file_stat(), mz_zip_validate_file(), and mz_zip_writer_add_from_zip_reader().

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◆ mz_zip_file_write_callback()

static size_t mz_zip_file_write_callback	(	void *	pOpaque,
		mz_uint64	ofs,
		const void *	pBuf,
		size_t	n
	)

static

{
    (void)ofs;
 
    return MZ_FWRITE(pBuf, 1, n, (MZ_FILE *)pOpaque);
}

References MZ_FILE, MZ_FWRITE, and void().

Referenced by mz_zip_reader_extract_to_cfile(), and mz_zip_reader_extract_to_file().

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◆ mz_zip_file_write_func()

static size_t mz_zip_file_write_func	(	void *	pOpaque,
		mz_uint64	file_ofs,
		const void *	pBuf,
		size_t	n
	)

static

{
    mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
    mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
 
    file_ofs += pZip->m_pState->m_file_archive_start_ofs;
 
    if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
    {
        mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
        return 0;
    }
 
    return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile);
}

References mz_zip_internal_state_tag::m_file_archive_start_ofs, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pState, MZ_FSEEK64, MZ_FTELL64, MZ_FWRITE, MZ_ZIP_FILE_SEEK_FAILED, mz_zip_set_error(), and SEEK_SET.

Referenced by mz_zip_writer_init_cfile(), mz_zip_writer_init_file_v2(), and mz_zip_writer_init_from_reader_v2().

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◆ mz_zip_filename_compare()

static MZ_FORCEINLINE int mz_zip_filename_compare	(	const mz_zip_array *	pCentral_dir_array,
		const mz_zip_array *	pCentral_dir_offsets,
		mz_uint	l_index,
		const char *	pR,
		mz_uint	r_len
	)

static

{
    const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
    mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    mz_uint8 l = 0, r = 0;
    pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
    pE = pL + MZ_MIN(l_len, r_len);
    while (pL < pE)
    {
        if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
            break;
        pL++;
        pR++;
    }
    return (pL == pE) ? (int)(l_len - r_len) : (l - r);
}

References MZ_MIN, MZ_READ_LE16, MZ_TOLOWER, MZ_ZIP_ARRAY_ELEMENT, MZ_ZIP_CDH_FILENAME_LEN_OFS, and MZ_ZIP_CENTRAL_DIR_HEADER_SIZE.

Referenced by mz_zip_locate_file_binary_search().

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◆ mz_zip_get_archive_file_start_offset()

mz_uint64 mz_zip_get_archive_file_start_offset ( mz_zip_archive * pZip )

{
    if ((!pZip) || (!pZip->m_pState))
        return 0;
    return pZip->m_pState->m_file_archive_start_ofs;
}

References mz_zip_internal_state_tag::m_file_archive_start_ofs, and mz_zip_archive::m_pState.

◆ mz_zip_get_archive_size()

mz_uint64 mz_zip_get_archive_size ( mz_zip_archive * pZip )

{
    if (!pZip)
        return 0;
    return pZip->m_archive_size;
}

References mz_zip_archive::m_archive_size.

◆ mz_zip_get_cdh()

static MZ_FORCEINLINE const mz_uint8 * mz_zip_get_cdh	(	mz_zip_archive *	pZip,
		mz_uint	file_index
	)

static

{
    if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files))
        return NULL;
    return &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_pState, mz_zip_archive::m_total_files, and MZ_ZIP_ARRAY_ELEMENT.

Referenced by mz_zip_reader_extract_to_heap(), mz_zip_reader_file_stat(), mz_zip_reader_get_filename(), mz_zip_reader_get_filename_from_extra(), mz_zip_reader_is_file_a_directory(), mz_zip_reader_is_file_encrypted(), mz_zip_reader_is_file_supported(), mz_zip_validate_file(), and mz_zip_writer_add_from_zip_reader().

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◆ mz_zip_get_central_dir_size()

size_t mz_zip_get_central_dir_size ( mz_zip_archive * pZip )

{
    if ((!pZip) || (!pZip->m_pState))
        return 0;
 
    return pZip->m_pState->m_central_dir.m_size;
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_archive::m_pState, and mz_zip_array::m_size.

◆ mz_zip_get_cfile()

MZ_FILE * mz_zip_get_cfile ( mz_zip_archive * pZip )

{
    if ((!pZip) || (!pZip->m_pState))
        return 0;
    return pZip->m_pState->m_pFile;
}

References mz_zip_internal_state_tag::m_pFile, and mz_zip_archive::m_pState.

Referenced by Slic3r::anonymous_namespace{miniz_extension.cpp}::close_zip().

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◆ mz_zip_get_error_string()

const char * mz_zip_get_error_string ( mz_zip_error mz_err )

{
    switch (mz_err)
    {
        case MZ_ZIP_NO_ERROR:
            return "no error";
        case MZ_ZIP_UNDEFINED_ERROR:
            return "undefined error";
        case MZ_ZIP_TOO_MANY_FILES:
            return "too many files";
        case MZ_ZIP_FILE_TOO_LARGE:
            return "file too large";
        case MZ_ZIP_UNSUPPORTED_METHOD:
            return "unsupported method";
        case MZ_ZIP_UNSUPPORTED_ENCRYPTION:
            return "unsupported encryption";
        case MZ_ZIP_UNSUPPORTED_FEATURE:
            return "unsupported feature";
        case MZ_ZIP_FAILED_FINDING_CENTRAL_DIR:
            return "failed finding central directory";
        case MZ_ZIP_NOT_AN_ARCHIVE:
            return "not a ZIP archive";
        case MZ_ZIP_INVALID_HEADER_OR_CORRUPTED:
            return "invalid header or archive is corrupted";
        case MZ_ZIP_UNSUPPORTED_MULTIDISK:
            return "unsupported multidisk archive";
        case MZ_ZIP_DECOMPRESSION_FAILED:
            return "decompression failed or archive is corrupted";
        case MZ_ZIP_COMPRESSION_FAILED:
            return "compression failed";
        case MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE:
            return "unexpected decompressed size";
        case MZ_ZIP_CRC_CHECK_FAILED:
            return "CRC-32 check failed";
        case MZ_ZIP_UNSUPPORTED_CDIR_SIZE:
            return "unsupported central directory size";
        case MZ_ZIP_ALLOC_FAILED:
            return "allocation failed";
        case MZ_ZIP_FILE_OPEN_FAILED:
            return "file open failed";
        case MZ_ZIP_FILE_CREATE_FAILED:
            return "file create failed";
        case MZ_ZIP_FILE_WRITE_FAILED:
            return "file write failed";
        case MZ_ZIP_FILE_READ_FAILED:
            return "file read failed";
        case MZ_ZIP_FILE_CLOSE_FAILED:
            return "file close failed";
        case MZ_ZIP_FILE_SEEK_FAILED:
            return "file seek failed";
        case MZ_ZIP_FILE_STAT_FAILED:
            return "file stat failed";
        case MZ_ZIP_INVALID_PARAMETER:
            return "invalid parameter";
        case MZ_ZIP_INVALID_FILENAME:
            return "invalid filename";
        case MZ_ZIP_BUF_TOO_SMALL:
            return "buffer too small";
        case MZ_ZIP_INTERNAL_ERROR:
            return "internal error";
        case MZ_ZIP_FILE_NOT_FOUND:
            return "file not found";
        case MZ_ZIP_ARCHIVE_TOO_LARGE:
            return "archive is too large";
        case MZ_ZIP_VALIDATION_FAILED:
            return "validation failed";
        case MZ_ZIP_WRITE_CALLBACK_FAILED:
            return "write calledback failed";
        default:
            break;
    }
 
    return "unknown error";
}

References MZ_ZIP_ALLOC_FAILED, MZ_ZIP_ARCHIVE_TOO_LARGE, MZ_ZIP_BUF_TOO_SMALL, MZ_ZIP_COMPRESSION_FAILED, MZ_ZIP_CRC_CHECK_FAILED, MZ_ZIP_DECOMPRESSION_FAILED, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR, MZ_ZIP_FILE_CLOSE_FAILED, MZ_ZIP_FILE_CREATE_FAILED, MZ_ZIP_FILE_NOT_FOUND, MZ_ZIP_FILE_OPEN_FAILED, MZ_ZIP_FILE_READ_FAILED, MZ_ZIP_FILE_SEEK_FAILED, MZ_ZIP_FILE_STAT_FAILED, MZ_ZIP_FILE_TOO_LARGE, MZ_ZIP_FILE_WRITE_FAILED, MZ_ZIP_INTERNAL_ERROR, MZ_ZIP_INVALID_FILENAME, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_NO_ERROR, MZ_ZIP_NOT_AN_ARCHIVE, MZ_ZIP_TOO_MANY_FILES, MZ_ZIP_UNDEFINED_ERROR, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE, MZ_ZIP_UNSUPPORTED_CDIR_SIZE, MZ_ZIP_UNSUPPORTED_ENCRYPTION, MZ_ZIP_UNSUPPORTED_FEATURE, MZ_ZIP_UNSUPPORTED_METHOD, MZ_ZIP_UNSUPPORTED_MULTIDISK, MZ_ZIP_VALIDATION_FAILED, and MZ_ZIP_WRITE_CALLBACK_FAILED.

Referenced by Slic3r::GUI::Plater::preview_zip_archive().

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◆ mz_zip_get_file_modified_time()

static mz_bool mz_zip_get_file_modified_time	(	const char *	pFilename,
		MZ_TIME_T *	pTime
	)

static

{
    struct MZ_FILE_STAT_STRUCT file_stat;
 
    /* On Linux with x86 glibc, this call will fail on large files (I think >= 0x80000000 bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh. */
    if (MZ_FILE_STAT(pFilename, &file_stat) != 0)
        return MZ_FALSE;
 
    *pTime = file_stat.st_mtime;
 
    return MZ_TRUE;
}

References MZ_FALSE, MZ_FILE_STAT, MZ_FILE_STAT_STRUCT, and MZ_TRUE.

Referenced by mz_zip_writer_add_file().

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◆ mz_zip_get_last_error()

mz_zip_error mz_zip_get_last_error ( mz_zip_archive * pZip )

{
    mz_zip_error prev_err;
 
    if (!pZip)
        return MZ_ZIP_INVALID_PARAMETER;
 
    prev_err = pZip->m_last_error;
 
    pZip->m_last_error = MZ_ZIP_NO_ERROR;
    return prev_err;
}

References mz_zip_archive::m_last_error, MZ_ZIP_INVALID_PARAMETER, and MZ_ZIP_NO_ERROR.

Referenced by Slic3r::GUI::Plater::preview_zip_archive().

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◆ mz_zip_get_mode()

mz_zip_mode mz_zip_get_mode ( mz_zip_archive * pZip )

{
    return pZip ? pZip->m_zip_mode : MZ_ZIP_MODE_INVALID;
}

References mz_zip_archive::m_zip_mode, and MZ_ZIP_MODE_INVALID.

◆ mz_zip_get_type()

mz_zip_type mz_zip_get_type ( mz_zip_archive * pZip )

{
    return pZip ? pZip->m_zip_type : MZ_ZIP_TYPE_INVALID;
}

References mz_zip_archive::m_zip_type, and MZ_ZIP_TYPE_INVALID.

◆ mz_zip_heap_write_func()

static size_t mz_zip_heap_write_func	(	void *	pOpaque,
		mz_uint64	file_ofs,
		const void *	pBuf,
		size_t	n
	)

static

{
    mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
    mz_zip_internal_state *pState = pZip->m_pState;
    mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size);
 
    if (!n)
        return 0;
 
    /* An allocation this big is likely to just fail on 32-bit systems, so don't even go there. */
    if ((sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF))
    {
        mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
        return 0;
    }
 
    if (new_size > pState->m_mem_capacity)
    {
        void *pNew_block;
        size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity);
 
        while (new_capacity < new_size)
            new_capacity *= 2;
 
        if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity)))
        {
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
            return 0;
        }
 
        pState->m_pMem = pNew_block;
        pState->m_mem_capacity = new_capacity;
    }
    memcpy((mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n);
    pState->m_mem_size = (size_t)new_size;
    return n;
}

References mz_zip_internal_state_tag::m_mem_capacity, mz_zip_internal_state_tag::m_mem_size, mz_zip_archive::m_pAlloc_opaque, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pRealloc, mz_zip_archive::m_pState, MZ_MAX, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_FILE_TOO_LARGE, and mz_zip_set_error().

Referenced by mz_zip_writer_end_internal(), mz_zip_writer_finalize_heap_archive(), mz_zip_writer_init_from_reader_v2(), and mz_zip_writer_init_heap_v2().

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◆ mz_zip_is_zip64()

mz_bool mz_zip_is_zip64 ( mz_zip_archive * pZip )

{
    if ((!pZip) || (!pZip->m_pState))
        return MZ_FALSE;
 
    return pZip->m_pState->m_zip64;
}

References mz_zip_archive::m_pState, mz_zip_internal_state_tag::m_zip64, and MZ_FALSE.

◆ mz_zip_locate_file_binary_search()

static mz_bool mz_zip_locate_file_binary_search	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint32 *	pIndex
	)

static

{
    mz_zip_internal_state *pState = pZip->m_pState;
    const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
    const mz_zip_array *pCentral_dir = &pState->m_central_dir;
    mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
    const uint32_t size = pZip->m_total_files;
    const mz_uint filename_len = (mz_uint)strlen(pFilename);
 
    if (pIndex)
        *pIndex = 0;
 
    if (size)
    {
        /* yes I could use uint32_t's, but then we would have to add some special case checks in the loop, argh, and */
        /* honestly the major expense here on 32-bit CPU's will still be the filename compare */
        mz_int64 l = 0, h = (mz_int64)size - 1;
 
        while (l <= h)
        {
            mz_int64 m = l + ((h - l) >> 1);
            uint32_t file_index = pIndices[(uint32_t)m];
 
            int comp = mz_zip_filename_compare(pCentral_dir, pCentral_dir_offsets, file_index, pFilename, filename_len);
            if (!comp)
            {
                if (pIndex)
                    *pIndex = file_index;
                return MZ_TRUE;
            }
            else if (comp < 0)
                l = m + 1;
            else
                h = m - 1;
        }
    }
 
    return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_pState, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_total_files, MZ_TRUE, MZ_ZIP_ARRAY_ELEMENT, MZ_ZIP_FILE_NOT_FOUND, mz_zip_filename_compare(), and mz_zip_set_error().

Referenced by mz_zip_reader_locate_file_v2().

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◆ mz_zip_mem_read_func()

static size_t mz_zip_mem_read_func	(	void *	pOpaque,
		mz_uint64	file_ofs,
		void *	pBuf,
		size_t	n
	)

static

{
    mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
    size_t s = (file_ofs >= pZip->m_archive_size) ? 0 : (size_t)MZ_MIN(pZip->m_archive_size - file_ofs, n);
    memcpy(pBuf, (const mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s);
    return s;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pState, and MZ_MIN.

Referenced by mz_zip_reader_init_mem(), and mz_zip_writer_init_heap_v2().

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◆ mz_zip_peek_last_error()

mz_zip_error mz_zip_peek_last_error ( mz_zip_archive * pZip )

{
    if (!pZip)
        return MZ_ZIP_INVALID_PARAMETER;
 
    return pZip->m_last_error;
}

References mz_zip_archive::m_last_error, and MZ_ZIP_INVALID_PARAMETER.

◆ mz_zip_read_archive_data()

size_t mz_zip_read_archive_data	(	mz_zip_archive *	pZip,
		mz_uint64	file_ofs,
		void *	pBuf,
		size_t	n
	)

{
    if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    return pZip->m_pRead(pZip->m_pIO_opaque, file_ofs, pBuf, n);
}

References mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, MZ_ZIP_INVALID_PARAMETER, and mz_zip_set_error().

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◆ mz_zip_reader_end()

mz_bool mz_zip_reader_end ( mz_zip_archive * pZip )

{
    return mz_zip_reader_end_internal(pZip, MZ_TRUE);
}

References MZ_TRUE, and mz_zip_reader_end_internal().

Referenced by Slic3r::anonymous_namespace{miniz_extension.cpp}::close_zip(), and mz_zip_end().

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◆ mz_zip_reader_end_internal()

static mz_bool mz_zip_reader_end_internal	(	mz_zip_archive *	pZip,
		mz_bool	set_last_error
	)

static

{
    mz_bool status = MZ_TRUE;
 
    if (!pZip)
        return MZ_FALSE;
 
    if ((!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
    {
        if (set_last_error)
            pZip->m_last_error = MZ_ZIP_INVALID_PARAMETER;
 
        return MZ_FALSE;
    }
 
    if (pZip->m_pState)
    {
        mz_zip_internal_state *pState = pZip->m_pState;
        pZip->m_pState = NULL;
 
        mz_zip_array_clear(pZip, &pState->m_central_dir);
        mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
        mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
 
#ifndef MINIZ_NO_STDIO
        if (pState->m_pFile)
        {
            if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE)
            {
                if (MZ_FCLOSE(pState->m_pFile) == EOF)
                {
                    if (set_last_error)
                        pZip->m_last_error = MZ_ZIP_FILE_CLOSE_FAILED;
                    status = MZ_FALSE;
                }
            }
            pState->m_pFile = NULL;
        }
#endif /* #ifndef MINIZ_NO_STDIO */
 
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
    }
    pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
 
    return status;
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_last_error, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pFree, mz_zip_archive::m_pState, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_zip_mode, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_FCLOSE, MZ_TRUE, mz_zip_array_clear(), MZ_ZIP_FILE_CLOSE_FAILED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_MODE_INVALID, MZ_ZIP_MODE_READING, and MZ_ZIP_TYPE_FILE.

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_extract_archive_file_to_heap_v2(), mz_zip_reader_end(), mz_zip_reader_init(), mz_zip_reader_init_cfile(), mz_zip_reader_init_file_v2(), mz_zip_reader_init_mem(), mz_zip_validate_file_archive(), mz_zip_validate_mem_archive(), and mz_zip_writer_init_from_reader_v2().

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◆ mz_zip_reader_extract_file_iter_new()

mz_zip_reader_extract_iter_state * mz_zip_reader_extract_file_iter_new	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint	flags
	)

{
    mz_uint32 file_index;
 
    /* Locate file index by name */
    if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
        return NULL;
 
    /* Construct iterator */
    return mz_zip_reader_extract_iter_new(pZip, file_index, flags);
}

References mz_zip_reader_extract_iter_new(), and mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_extract_file_to_callback()

mz_bool mz_zip_reader_extract_file_to_callback	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_file_write_func	pCallback,
		void *	pOpaque,
		mz_uint	flags
	)

{
    mz_uint32 file_index;
    if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
        return MZ_FALSE;
 
    return mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, flags);
}

References MZ_FALSE, mz_zip_reader_extract_to_callback(), and mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_extract_file_to_cfile()

mz_bool mz_zip_reader_extract_file_to_cfile	(	mz_zip_archive *	pZip,
		const char *	pArchive_filename,
		MZ_FILE *	pFile,
		mz_uint	flags
	)

{
    mz_uint32 file_index;
    if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index))
        return MZ_FALSE;
 
    return mz_zip_reader_extract_to_cfile(pZip, file_index, pFile, flags);
}

References MZ_FALSE, mz_zip_reader_extract_to_cfile(), and mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_extract_file_to_file()

mz_bool mz_zip_reader_extract_file_to_file	(	mz_zip_archive *	pZip,
		const char *	pArchive_filename,
		const char *	pDst_filename,
		mz_uint	flags
	)

{
    mz_uint32 file_index;
    if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index))
        return MZ_FALSE;
 
    return mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags);
}

References MZ_FALSE, mz_zip_reader_extract_to_file(), and mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_extract_file_to_heap()

void * mz_zip_reader_extract_file_to_heap	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		size_t *	pSize,
		mz_uint	flags
	)

{
    mz_uint32 file_index;
    if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
    {
        if (pSize)
            *pSize = 0;
        return MZ_FALSE;
    }
    return mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags);
}

References MZ_FALSE, mz_zip_reader_extract_to_heap(), and mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_extract_file_to_mem()

mz_bool mz_zip_reader_extract_file_to_mem	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		void *	pBuf,
		size_t	buf_size,
		mz_uint	flags
	)

{
    return mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, buf_size, flags, NULL, 0);
}

References mz_zip_reader_extract_file_to_mem_no_alloc().

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◆ mz_zip_reader_extract_file_to_mem_no_alloc()

mz_bool mz_zip_reader_extract_file_to_mem_no_alloc	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		void *	pBuf,
		size_t	buf_size,
		mz_uint	flags,
		void *	pUser_read_buf,
		size_t	user_read_buf_size
	)

{
    mz_uint32 file_index;
    if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
        return MZ_FALSE;
    return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size);
}

References MZ_FALSE, mz_zip_reader_extract_to_mem_no_alloc(), and mz_zip_reader_locate_file_v2().

Referenced by mz_zip_reader_extract_file_to_mem().

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◆ mz_zip_reader_extract_iter_free()

mz_bool mz_zip_reader_extract_iter_free ( mz_zip_reader_extract_iter_state * pState )

{
    int status;
 
    /* Argument sanity check */
    if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState))
        return MZ_FALSE;
 
    /* Was decompression completed and requested? */
    if ((pState->status == TINFL_STATUS_DONE) && (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
    {
        /* Make sure the entire file was decompressed, and check its CRC. */
        if (pState->out_buf_ofs != pState->file_stat.m_uncomp_size)
        {
            mz_zip_set_error(pState->pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
            pState->status = TINFL_STATUS_FAILED;
        }
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
        else if (pState->file_crc32 != pState->file_stat.m_crc32)
        {
            mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
            pState->status = TINFL_STATUS_FAILED;
        }
#endif
    }
 
    /* Free buffers */
    if (!pState->pZip->m_pState->m_pMem)
        pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pRead_buf);
    if (pState->pWrite_buf)
        pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pWrite_buf);
 
    /* Save status */
    status = pState->status;
 
    /* Free context */
    pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState);
 
    return status == TINFL_STATUS_DONE;
}

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◆ mz_zip_reader_extract_iter_new()

mz_zip_reader_extract_iter_state * mz_zip_reader_extract_iter_new	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		mz_uint	flags
	)

{
    mz_zip_reader_extract_iter_state *pState;
    mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
 
    /* Argument sanity check */
    if ((!pZip) || (!pZip->m_pState))
        return NULL;
 
    /* Allocate an iterator status structure */
    pState = (mz_zip_reader_extract_iter_state*)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_reader_extract_iter_state));
    if (!pState)
    {
        mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        return NULL;
    }
 
    /* Fetch file details */
    if (!mz_zip_reader_file_stat(pZip, file_index, &pState->file_stat))
    {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    /* Encryption and patch files are not supported. */
    if (pState->file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
    {
        mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    /* This function only supports decompressing stored and deflate. */
    if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (pState->file_stat.m_method != 0) && (pState->file_stat.m_method != MZ_DEFLATED))
    {
        mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    /* Init state - save args */
    pState->pZip = pZip;
    pState->flags = flags;
 
    /* Init state - reset variables to defaults */
    pState->status = TINFL_STATUS_DONE;
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
    pState->file_crc32 = MZ_CRC32_INIT;
#endif
    pState->read_buf_ofs = 0;
    pState->out_buf_ofs = 0;
    pState->pRead_buf = NULL;
    pState->pWrite_buf = NULL;
    pState->out_blk_remain = 0;
 
    /* Read and parse the local directory entry. */
    pState->cur_file_ofs = pState->file_stat.m_local_header_ofs;
    if (pZip->m_pRead(pZip->m_pIO_opaque, pState->cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
    {
        mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    pState->cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
    if ((pState->cur_file_ofs + pState->file_stat.m_comp_size) > pZip->m_archive_size)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
        return NULL;
    }
 
    /* Decompress the file either directly from memory or from a file input buffer. */
    if (pZip->m_pState->m_pMem)
    {
        pState->pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + pState->cur_file_ofs;
        pState->read_buf_size = pState->read_buf_avail = pState->file_stat.m_comp_size;
        pState->comp_remaining = pState->file_stat.m_comp_size;
    }
    else
    {
        if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method)))
        {
            /* Decompression required, therefore intermediate read buffer required */
            pState->read_buf_size = MZ_MIN(pState->file_stat.m_comp_size, MZ_ZIP_MAX_IO_BUF_SIZE);
            if (NULL == (pState->pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)pState->read_buf_size)))
            {
                mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
                pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
                return NULL;
            }
        }
        else
        {
            /* Decompression not required - we will be reading directly into user buffer, no temp buf required */
            pState->read_buf_size = 0;
        }
        pState->read_buf_avail = 0;
        pState->comp_remaining = pState->file_stat.m_comp_size;
    }
 
    if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method)))
    {
        /* Decompression required, init decompressor */
        tinfl_init( &pState->inflator );
 
        /* Allocate write buffer */
        if (NULL == (pState->pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE)))
        {
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
            if (pState->pRead_buf)
                pZip->m_pFree(pZip->m_pAlloc_opaque, pState->pRead_buf);
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
            return NULL;
        }
    }
 
    return pState;
}

Referenced by mz_zip_reader_extract_file_iter_new().

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◆ mz_zip_reader_extract_iter_read()

size_t mz_zip_reader_extract_iter_read	(	mz_zip_reader_extract_iter_state *	pState,
		void *	pvBuf,
		size_t	buf_size
	)

{
    size_t copied_to_caller = 0;
 
    /* Argument sanity check */
    if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState) || (!pvBuf))
        return 0;
 
    if ((pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method))
    {
        /* The file is stored or the caller has requested the compressed data, calc amount to return. */
        copied_to_caller = (size_t)MZ_MIN( buf_size, pState->comp_remaining );
 
        /* Zip is in memory....or requires reading from a file? */
        if (pState->pZip->m_pState->m_pMem)
        {
            /* Copy data to caller's buffer */
            memcpy( pvBuf, pState->pRead_buf, copied_to_caller );
            pState->pRead_buf = ((mz_uint8*)pState->pRead_buf) + copied_to_caller;
        }
        else
        {
            /* Read directly into caller's buffer */
            if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pvBuf, copied_to_caller) != copied_to_caller)
            {
                /* Failed to read all that was asked for, flag failure and alert user */
                mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
                pState->status = TINFL_STATUS_FAILED;
                copied_to_caller = 0;
            }
        }
 
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
        /* Compute CRC if not returning compressed data only */
        if (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
            pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, (const mz_uint8 *)pvBuf, copied_to_caller);
#endif
 
        /* Advance offsets, dec counters */
        pState->cur_file_ofs += copied_to_caller;
        pState->out_buf_ofs += copied_to_caller;
        pState->comp_remaining -= copied_to_caller;
    }
    else
    {
        do
        {
            /* Calc ptr to write buffer - given current output pos and block size */
            mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pState->pWrite_buf + (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
 
            /* Calc max output size - given current output pos and block size */
            size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
 
            if (!pState->out_blk_remain)
            {
                /* Read more data from file if none available (and reading from file) */
                if ((!pState->read_buf_avail) && (!pState->pZip->m_pState->m_pMem))
                {
                    /* Calc read size */
                    pState->read_buf_avail = MZ_MIN(pState->read_buf_size, pState->comp_remaining);
                    if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pState->pRead_buf, (size_t)pState->read_buf_avail) != pState->read_buf_avail)
                    {
                        mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
                        pState->status = TINFL_STATUS_FAILED;
                        break;
                    }
 
                    /* Advance offsets, dec counters */
                    pState->cur_file_ofs += pState->read_buf_avail;
                    pState->comp_remaining -= pState->read_buf_avail;
                    pState->read_buf_ofs = 0;
                }
 
                /* Perform decompression */
                in_buf_size = (size_t)pState->read_buf_avail;
                pState->status = tinfl_decompress(&pState->inflator, (const mz_uint8 *)pState->pRead_buf + pState->read_buf_ofs, &in_buf_size, (mz_uint8 *)pState->pWrite_buf, pWrite_buf_cur, &out_buf_size, pState->comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
                pState->read_buf_avail -= in_buf_size;
                pState->read_buf_ofs += in_buf_size;
 
                /* Update current output block size remaining */
                pState->out_blk_remain = out_buf_size;
            }
 
            if (pState->out_blk_remain)
            {
                /* Calc amount to return. */
                size_t to_copy = MZ_MIN( (buf_size - copied_to_caller), pState->out_blk_remain );
 
                /* Copy data to caller's buffer */
                memcpy( (uint8_t*)pvBuf + copied_to_caller, pWrite_buf_cur, to_copy );
 
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
                /* Perform CRC */
                pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, pWrite_buf_cur, to_copy);
#endif
 
                /* Decrement data consumed from block */
                pState->out_blk_remain -= to_copy;
 
                /* Inc output offset, while performing sanity check */
                if ((pState->out_buf_ofs += to_copy) > pState->file_stat.m_uncomp_size)
                {
                    mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
                    pState->status = TINFL_STATUS_FAILED;
                    break;
                }
 
                /* Increment counter of data copied to caller */
                copied_to_caller += to_copy;
            }
        } while ( (copied_to_caller < buf_size) && ((pState->status == TINFL_STATUS_NEEDS_MORE_INPUT) || (pState->status == TINFL_STATUS_HAS_MORE_OUTPUT)) );
    }
 
    /* Return how many bytes were copied into user buffer */
    return copied_to_caller;
}

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◆ mz_zip_reader_extract_to_callback()

mz_bool mz_zip_reader_extract_to_callback	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		mz_file_write_func	pCallback,
		void *	pOpaque,
		mz_uint	flags
	)

{
    int status = TINFL_STATUS_DONE;
    mz_uint file_crc32 = MZ_CRC32_INIT;
    mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, out_buf_ofs = 0, cur_file_ofs;
    mz_zip_archive_file_stat file_stat;
    void *pRead_buf = NULL;
    void *pWrite_buf = NULL;
    mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
 
    if ((!pZip) || (!pZip->m_pState) || (!pCallback) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
        return MZ_FALSE;
 
    /* A directory or zero length file */
    if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
        return MZ_TRUE;
 
    /* Encryption and patch files are not supported. */
    if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
 
    /* This function only supports decompressing stored and deflate. */
    if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
 
    /* Read and do some minimal validation of the local directory entry (this doesn't crack the zip64 stuff, which we already have from the central dir) */
    cur_file_ofs = file_stat.m_local_header_ofs;
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
    if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
    if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    /* Decompress the file either directly from memory or from a file input buffer. */
    if (pZip->m_pState->m_pMem)
    {
        pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
        read_buf_size = read_buf_avail = file_stat.m_comp_size;
        comp_remaining = 0;
    }
    else
    {
        read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE);
        if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
        read_buf_avail = 0;
        comp_remaining = file_stat.m_comp_size;
    }
 
    if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
    {
        /* The file is stored or the caller has requested the compressed data. */
        if (pZip->m_pState->m_pMem)
        {
            if (((sizeof(size_t) == sizeof(mz_uint32))) && (file_stat.m_comp_size > MZ_UINT32_MAX))
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
            if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)file_stat.m_comp_size) != file_stat.m_comp_size)
            {
                mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
                status = TINFL_STATUS_FAILED;
            }
            else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
            {
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
                file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)file_stat.m_comp_size);
#endif
            }
 
            cur_file_ofs += file_stat.m_comp_size;
            out_buf_ofs += file_stat.m_comp_size;
            comp_remaining = 0;
        }
        else
        {
            while (comp_remaining)
            {
                read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
                if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
                {
                    mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
                    status = TINFL_STATUS_FAILED;
                    break;
                }
 
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
                if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
                {
                    file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)read_buf_avail);
                }
#endif
 
                if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
                {
                    mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
                    status = TINFL_STATUS_FAILED;
                    break;
                }
 
                cur_file_ofs += read_buf_avail;
                out_buf_ofs += read_buf_avail;
                comp_remaining -= read_buf_avail;
            }
        }
    }
    else
    {
        tinfl_decompressor inflator;
        tinfl_init(&inflator);
 
        if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE)))
        {
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
            status = TINFL_STATUS_FAILED;
        }
        else
        {
            do
            {
                mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pWrite_buf + (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
                size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
                if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
                {
                    read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
                    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
                    {
                        mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
                        status = TINFL_STATUS_FAILED;
                        break;
                    }
                    cur_file_ofs += read_buf_avail;
                    comp_remaining -= read_buf_avail;
                    read_buf_ofs = 0;
                }
 
                in_buf_size = (size_t)read_buf_avail;
                status = tinfl_decompress(&inflator, (const mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
                read_buf_avail -= in_buf_size;
                read_buf_ofs += in_buf_size;
 
                if (out_buf_size)
                {
                    if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != out_buf_size)
                    {
                        mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
                        status = TINFL_STATUS_FAILED;
                        break;
                    }
 
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
                    file_crc32 = (mz_uint32)mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size);
#endif
                    if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size)
                    {
                        mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
                        status = TINFL_STATUS_FAILED;
                        break;
                    }
                }
            } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) || (status == TINFL_STATUS_HAS_MORE_OUTPUT));
        }
    }
 
    if ((status == TINFL_STATUS_DONE) && (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
    {
        /* Make sure the entire file was decompressed, and check its CRC. */
        if (out_buf_ofs != file_stat.m_uncomp_size)
        {
            mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
            status = TINFL_STATUS_FAILED;
        }
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
        else if (file_crc32 != file_stat.m_crc32)
        {
            mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
            status = TINFL_STATUS_FAILED;
        }
#endif
    }
 
    if (!pZip->m_pState->m_pMem)
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
 
    if (pWrite_buf)
        pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf);
 
    return status == TINFL_STATUS_DONE;
}

References mz_zip_archive::m_archive_size, mz_zip_archive_file_stat::m_bit_flag, mz_zip_archive_file_stat::m_comp_size, mz_zip_archive_file_stat::m_crc32, mz_zip_archive_file_stat::m_is_directory, mz_zip_archive_file_stat::m_local_header_ofs, mz_zip_archive_file_stat::m_method, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, mz_zip_archive::m_pIO_opaque, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive_file_stat::m_uncomp_size, mz_crc32(), MZ_CRC32_INIT, MZ_DEFLATED, MZ_FALSE, MZ_MIN, MZ_READ_LE16, MZ_READ_LE32, MZ_TRUE, MZ_UINT32_MAX, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_DECOMPRESSION_FAILED, MZ_ZIP_FILE_READ_FAILED, MZ_ZIP_FLAG_COMPRESSED_DATA, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION, MZ_ZIP_INTERNAL_ERROR, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_LDH_EXTRA_LEN_OFS, MZ_ZIP_LDH_FILENAME_LEN_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG, MZ_ZIP_LOCAL_DIR_HEADER_SIZE, MZ_ZIP_MAX_IO_BUF_SIZE, mz_zip_reader_file_stat(), mz_zip_set_error(), MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE, MZ_ZIP_UNSUPPORTED_ENCRYPTION, MZ_ZIP_UNSUPPORTED_METHOD, MZ_ZIP_WRITE_CALLBACK_FAILED, tinfl_decompress(), TINFL_FLAG_HAS_MORE_INPUT, tinfl_init, TINFL_LZ_DICT_SIZE, TINFL_STATUS_DONE, TINFL_STATUS_FAILED, TINFL_STATUS_HAS_MORE_OUTPUT, and TINFL_STATUS_NEEDS_MORE_INPUT.

Referenced by Slic3r::_3MF_Importer::_extract_model_from_archive(), Slic3r::extract_model_from_archive(), mz_zip_reader_extract_file_to_callback(), mz_zip_reader_extract_to_cfile(), mz_zip_reader_extract_to_file(), and mz_zip_validate_file().

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◆ mz_zip_reader_extract_to_cfile()

mz_bool mz_zip_reader_extract_to_cfile	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		MZ_FILE *	pFile,
		mz_uint	flags
	)

{
    mz_zip_archive_file_stat file_stat;
 
    if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
        return MZ_FALSE;
 
    if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
 
    return mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags);
}

References mz_zip_archive_file_stat::m_is_directory, mz_zip_archive_file_stat::m_is_supported, MZ_FALSE, mz_zip_file_write_callback(), mz_zip_reader_extract_to_callback(), mz_zip_reader_file_stat(), mz_zip_set_error(), and MZ_ZIP_UNSUPPORTED_FEATURE.

Referenced by mz_zip_reader_extract_file_to_cfile().

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◆ mz_zip_reader_extract_to_file()

mz_bool mz_zip_reader_extract_to_file	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		const char *	pDst_filename,
		mz_uint	flags
	)

{
    mz_bool status;
    mz_zip_archive_file_stat file_stat;
    MZ_FILE *pFile;
 
    if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
        return MZ_FALSE;
 
    if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
 
    pFile = MZ_FOPEN(pDst_filename, "wb");
    if (!pFile)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
 
    status = mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags);
 
    if (MZ_FCLOSE(pFile) == EOF)
    {
        if (status)
            mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
 
        status = MZ_FALSE;
    }
 
#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
    if (status)
        mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time);
#endif
 
    return status;
}

References mz_zip_archive_file_stat::m_is_directory, mz_zip_archive_file_stat::m_is_supported, mz_zip_archive_file_stat::m_time, MZ_FALSE, MZ_FCLOSE, MZ_FILE, MZ_FOPEN, MZ_ZIP_FILE_CLOSE_FAILED, MZ_ZIP_FILE_OPEN_FAILED, mz_zip_file_write_callback(), mz_zip_reader_extract_to_callback(), mz_zip_reader_file_stat(), mz_zip_set_error(), mz_zip_set_file_times(), and MZ_ZIP_UNSUPPORTED_FEATURE.

Referenced by mz_zip_reader_extract_file_to_file().

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◆ mz_zip_reader_extract_to_heap()

void * mz_zip_reader_extract_to_heap	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		size_t *	pSize,
		mz_uint	flags
	)

{
    mz_uint64 comp_size, uncomp_size, alloc_size;
    const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
    void *pBuf;
 
    if (pSize)
        *pSize = 0;
 
    if (!p)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return NULL;
    }
 
    comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
    uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
 
    alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? comp_size : uncomp_size;
    if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
    {
        mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
        return NULL;
    }
 
    if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size)))
    {
        mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        return NULL;
    }
 
    if (!mz_zip_reader_extract_to_mem(pZip, file_index, pBuf, (size_t)alloc_size, flags))
    {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
        return NULL;
    }
 
    if (pSize)
        *pSize = (size_t)alloc_size;
    return pBuf;
}

References mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, MZ_READ_LE32, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_FLAG_COMPRESSED_DATA, mz_zip_get_cdh(), MZ_ZIP_INTERNAL_ERROR, MZ_ZIP_INVALID_PARAMETER, mz_zip_reader_extract_to_mem(), and mz_zip_set_error().

Referenced by mz_zip_extract_archive_file_to_heap_v2(), and mz_zip_reader_extract_file_to_heap().

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◆ mz_zip_reader_extract_to_mem()

mz_bool mz_zip_reader_extract_to_mem	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		void *	pBuf,
		size_t	buf_size,
		mz_uint	flags
	)

{
    return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, NULL, 0);
}

References mz_zip_reader_extract_to_mem_no_alloc().

Referenced by Slic3r::_3MF_Importer::_extract_custom_gcode_per_print_z_from_archive(), Slic3r::_3MF_Importer::_extract_cut_information_from_archive(), Slic3r::_3MF_Importer::_extract_layer_config_ranges_from_archive(), Slic3r::_3MF_Importer::_extract_layer_heights_profile_config_from_archive(), Slic3r::_3MF_Importer::_extract_model_config_from_archive(), Slic3r::_3MF_Importer::_extract_print_config_from_archive(), Slic3r::_3MF_Importer::_extract_sla_drain_holes_from_archive(), Slic3r::_3MF_Importer::_extract_sla_support_points_from_archive(), mz_zip_reader_extract_to_heap(), Slic3r::GUI::Plater::preview_zip_archive(), Slic3r::anonymous_namespace{ZipperArchiveImport.cpp}::read_entry(), Slic3r::anonymous_namespace{ZipperArchiveImport.cpp}::read_ini(), and Slic3r::PresetUpdater::priv::sync_config().

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◆ mz_zip_reader_extract_to_mem_no_alloc()

mz_bool mz_zip_reader_extract_to_mem_no_alloc	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		void *	pBuf,
		size_t	buf_size,
		mz_uint	flags,
		void *	pUser_read_buf,
		size_t	user_read_buf_size
	)

{
    int status = TINFL_STATUS_DONE;
    mz_uint64 needed_size, cur_file_ofs, comp_remaining, out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail;
    mz_zip_archive_file_stat file_stat;
    void *pRead_buf;
    mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
    tinfl_decompressor inflator;
 
    if ((!pZip) || (!pZip->m_pState) || ((buf_size) && (!pBuf)) || ((user_read_buf_size) && (!pUser_read_buf)) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
        return MZ_FALSE;
 
    /* A directory or zero length file */
    if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
        return MZ_TRUE;
 
    /* Encryption and patch files are not supported. */
    if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
 
    /* This function only supports decompressing stored and deflate. */
    if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
 
    /* Ensure supplied output buffer is large enough. */
    needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size;
    if (buf_size < needed_size)
        return mz_zip_set_error(pZip, MZ_ZIP_BUF_TOO_SMALL);
 
    /* Read and parse the local directory entry. */
    cur_file_ofs = file_stat.m_local_header_ofs;
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
    if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
    if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
    {
        /* The file is stored or the caller has requested the compressed data. */
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, (size_t)needed_size) != needed_size)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
        if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) == 0)
        {
            if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32)
                return mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
        }
#endif
 
        return MZ_TRUE;
    }
 
    /* Decompress the file either directly from memory or from a file input buffer. */
    tinfl_init(&inflator);
 
    if (pZip->m_pState->m_pMem)
    {
        /* Read directly from the archive in memory. */
        pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
        read_buf_size = read_buf_avail = file_stat.m_comp_size;
        comp_remaining = 0;
    }
    else if (pUser_read_buf)
    {
        /* Use a user provided read buffer. */
        if (!user_read_buf_size)
            return MZ_FALSE;
        pRead_buf = (mz_uint8 *)pUser_read_buf;
        read_buf_size = user_read_buf_size;
        read_buf_avail = 0;
        comp_remaining = file_stat.m_comp_size;
    }
    else
    {
        /* Temporarily allocate a read buffer. */
        read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE);
        if (((sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
        if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
        read_buf_avail = 0;
        comp_remaining = file_stat.m_comp_size;
    }
 
    do
    {
        /* The size_t cast here should be OK because we've verified that the output buffer is >= file_stat.m_uncomp_size above */
        size_t in_buf_size, out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs);
        if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
        {
            read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
            if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
            {
                status = TINFL_STATUS_FAILED;
                mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
                break;
            }
            cur_file_ofs += read_buf_avail;
            comp_remaining -= read_buf_avail;
            read_buf_ofs = 0;
        }
        in_buf_size = (size_t)read_buf_avail;
        status = tinfl_decompress(&inflator, (mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pBuf, (mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0));
        read_buf_avail -= in_buf_size;
        read_buf_ofs += in_buf_size;
        out_buf_ofs += out_buf_size;
    } while (status == TINFL_STATUS_NEEDS_MORE_INPUT);
 
    if (status == TINFL_STATUS_DONE)
    {
        /* Make sure the entire file was decompressed, and check its CRC. */
        if (out_buf_ofs != file_stat.m_uncomp_size)
        {
            mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
            status = TINFL_STATUS_FAILED;
        }
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
        else if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32)
        {
            mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
            status = TINFL_STATUS_FAILED;
        }
#endif
    }
 
    if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf))
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
 
    return status == TINFL_STATUS_DONE;
}

References mz_zip_archive::m_archive_size, mz_zip_archive_file_stat::m_bit_flag, mz_zip_archive_file_stat::m_comp_size, mz_zip_archive_file_stat::m_crc32, mz_zip_archive_file_stat::m_is_directory, mz_zip_archive_file_stat::m_local_header_ofs, mz_zip_archive_file_stat::m_method, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, mz_zip_archive::m_pIO_opaque, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive_file_stat::m_uncomp_size, mz_crc32(), MZ_CRC32_INIT, MZ_DEFLATED, MZ_FALSE, MZ_MIN, MZ_READ_LE16, MZ_READ_LE32, MZ_TRUE, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_BUF_TOO_SMALL, MZ_ZIP_CRC_CHECK_FAILED, MZ_ZIP_DECOMPRESSION_FAILED, MZ_ZIP_FILE_READ_FAILED, MZ_ZIP_FLAG_COMPRESSED_DATA, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION, MZ_ZIP_INTERNAL_ERROR, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_LDH_EXTRA_LEN_OFS, MZ_ZIP_LDH_FILENAME_LEN_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG, MZ_ZIP_LOCAL_DIR_HEADER_SIZE, MZ_ZIP_MAX_IO_BUF_SIZE, mz_zip_reader_file_stat(), mz_zip_set_error(), MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE, MZ_ZIP_UNSUPPORTED_ENCRYPTION, MZ_ZIP_UNSUPPORTED_METHOD, tinfl_decompress(), TINFL_FLAG_HAS_MORE_INPUT, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF, tinfl_init, TINFL_STATUS_DONE, TINFL_STATUS_FAILED, and TINFL_STATUS_NEEDS_MORE_INPUT.

Referenced by mz_zip_reader_extract_file_to_mem_no_alloc(), and mz_zip_reader_extract_to_mem().

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◆ mz_zip_reader_file_stat()

mz_bool mz_zip_reader_file_stat	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		mz_zip_archive_file_stat *	pStat
	)

{
    return mz_zip_file_stat_internal(pZip, file_index, mz_zip_get_cdh(pZip, file_index), pStat, NULL);
}

References mz_zip_file_stat_internal(), and mz_zip_get_cdh().

Referenced by Slic3r::GUI::FileArchiveDialog::FileArchiveDialog(), Slic3r::_3MF_Importer::_load_model_from_file(), Slic3r::is_project_3mf(), Slic3r::load_amf_archive(), mz_zip_reader_extract_iter_new(), mz_zip_reader_extract_to_callback(), mz_zip_reader_extract_to_cfile(), mz_zip_reader_extract_to_file(), mz_zip_reader_extract_to_mem_no_alloc(), mz_zip_validate_archive(), Slic3r::GUI::Plater::preview_zip_archive(), Slic3r::read_zipper_archive(), and Slic3r::PresetUpdater::priv::sync_config().

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◆ mz_zip_reader_filename_less()

static MZ_FORCEINLINE mz_bool mz_zip_reader_filename_less	(	const mz_zip_array *	pCentral_dir_array,
		const mz_zip_array *	pCentral_dir_offsets,
		mz_uint	l_index,
		mz_uint	r_index
	)

static

{
    const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
    const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index));
    mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS), r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    mz_uint8 l = 0, r = 0;
    pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
    pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
    pE = pL + MZ_MIN(l_len, r_len);
    while (pL < pE)
    {
        if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
            break;
        pL++;
        pR++;
    }
    return (pL == pE) ? (l_len < r_len) : (l < r);
}

References MZ_MIN, MZ_READ_LE16, MZ_TOLOWER, MZ_ZIP_ARRAY_ELEMENT, MZ_ZIP_CDH_FILENAME_LEN_OFS, and MZ_ZIP_CENTRAL_DIR_HEADER_SIZE.

Referenced by mz_zip_reader_sort_central_dir_offsets_by_filename().

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◆ mz_zip_reader_get_filename()

mz_uint mz_zip_reader_get_filename	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		char *	pFilename,
		mz_uint	filename_buf_size
	)

{
    mz_uint n;
    const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
    if (!p)
    {
        if (filename_buf_size)
            pFilename[0] = '\0';
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return 0;
    }
    n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    if (filename_buf_size)
    {
        n = MZ_MIN(n, filename_buf_size - 1);
        memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
        pFilename[n] = '\0';
    }
    return n + 1;
}

References MZ_MIN, MZ_READ_LE16, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, mz_zip_get_cdh(), MZ_ZIP_INVALID_PARAMETER, and mz_zip_set_error().

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◆ mz_zip_reader_get_filename_from_extra()

mz_uint mz_zip_reader_get_filename_from_extra	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		char *	buffer,
		mz_uint	extra_buf_size
	)

{
    if (extra_buf_size == 0)
        return 0;
    mz_uint nf;
    mz_uint ne;
    const mz_uint8* p = mz_zip_get_cdh(pZip, file_index);
    if (!p)
    {
        if (extra_buf_size)
            buffer[0] = '\0';
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return 0;
    }
    nf = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    ne = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
 
    int copy = 0;
    char const* p_nf = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + nf;
    char const* e = p_nf + ne + 1;
    while (p_nf + 4 < e) {
        mz_uint16 len = ((mz_uint16)p_nf[2]) | ((mz_uint16)p_nf[3] << 8);
        if (p_nf[0] == '\x75' && p_nf[1] == '\x70' && len >= 5 && p_nf + 4 + len < e && p_nf[4] == '\x01') {
            mz_uint length = MZ_MIN(len - 5, extra_buf_size - 1);
            memcpy(buffer, p_nf + 9, length);
            return length;
        }
        else {
            p_nf += 4 + len;
        }
    }
    return 0;
}

References MZ_MIN, MZ_READ_LE16, MZ_ZIP_CDH_EXTRA_LEN_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, mz_zip_get_cdh(), MZ_ZIP_INVALID_PARAMETER, and mz_zip_set_error().

Referenced by Slic3r::GUI::FileArchiveDialog::FileArchiveDialog(), and Slic3r::GUI::Plater::preview_zip_archive().

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◆ mz_zip_reader_get_num_files()

mz_uint mz_zip_reader_get_num_files ( mz_zip_archive * pZip )

{
    return pZip ? pZip->m_total_files : 0;
}

References mz_zip_archive::m_total_files.

Referenced by Slic3r::GUI::FileArchiveDialog::FileArchiveDialog(), Slic3r::_3MF_Importer::_load_model_from_file(), Slic3r::is_project_3mf(), Slic3r::load_amf_archive(), Slic3r::GUI::Plater::preview_zip_archive(), Slic3r::read_zipper_archive(), and Slic3r::PresetUpdater::priv::sync_config().

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◆ mz_zip_reader_init()

mz_bool mz_zip_reader_init	(	mz_zip_archive *	pZip,
		mz_uint64	size,
		mz_uint	flags
	)

{
    if ((!pZip) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_reader_init_internal(pZip, flags))
        return MZ_FALSE;
 
    pZip->m_zip_type = MZ_ZIP_TYPE_USER;
    pZip->m_archive_size = size;
 
    if (!mz_zip_reader_read_central_dir(pZip, flags))
    {
        mz_zip_reader_end_internal(pZip, MZ_FALSE);
        return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_archive::m_pRead, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_TRUE, MZ_ZIP_INVALID_PARAMETER, mz_zip_reader_end_internal(), mz_zip_reader_init_internal(), mz_zip_reader_read_central_dir(), mz_zip_set_error(), and MZ_ZIP_TYPE_USER.

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◆ mz_zip_reader_init_cfile()

mz_bool mz_zip_reader_init_cfile	(	mz_zip_archive *	pZip,
		MZ_FILE *	pFile,
		mz_uint64	archive_size,
		mz_uint	flags
	)

{
    mz_uint64 cur_file_ofs;
 
    if ((!pZip) || (!pFile))
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
 
    cur_file_ofs = MZ_FTELL64(pFile);
 
    if (!archive_size)
    {
        if (MZ_FSEEK64(pFile, 0, SEEK_END))
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
 
        archive_size = MZ_FTELL64(pFile) - cur_file_ofs;
 
        if (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
            return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
    }
 
    if (!mz_zip_reader_init_internal(pZip, flags))
        return MZ_FALSE;
 
    pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
    pZip->m_pRead = mz_zip_file_read_func;
 
    pZip->m_pIO_opaque = pZip;
    pZip->m_pState->m_pFile = pFile;
    pZip->m_archive_size = archive_size;
    pZip->m_pState->m_file_archive_start_ofs = cur_file_ofs;
 
    if (!mz_zip_reader_read_central_dir(pZip, flags))
    {
        mz_zip_reader_end_internal(pZip, MZ_FALSE);
        return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_file_archive_start_ofs, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_FSEEK64, MZ_FTELL64, MZ_TRUE, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_OPEN_FAILED, mz_zip_file_read_func(), MZ_ZIP_FILE_SEEK_FAILED, MZ_ZIP_NOT_AN_ARCHIVE, mz_zip_reader_end_internal(), mz_zip_reader_init_internal(), mz_zip_reader_read_central_dir(), mz_zip_set_error(), and MZ_ZIP_TYPE_CFILE.

Referenced by Slic3r::anonymous_namespace{miniz_extension.cpp}::open_zip().

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◆ mz_zip_reader_init_file()

mz_bool mz_zip_reader_init_file	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint32	flags
	)

{
    return mz_zip_reader_init_file_v2(pZip, pFilename, flags, 0, 0);
}

References mz_zip_reader_init_file_v2().

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◆ mz_zip_reader_init_file_v2()

mz_bool mz_zip_reader_init_file_v2	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint	flags,
		mz_uint64	file_start_ofs,
		mz_uint64	archive_size
	)

{
    mz_uint64 file_size;
    MZ_FILE *pFile;
 
    if ((!pZip) || (!pFilename) || ((archive_size) && (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pFile = MZ_FOPEN(pFilename, "rb");
    if (!pFile)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
 
    file_size = archive_size;
    if (!file_size)
    {
        if (MZ_FSEEK64(pFile, 0, SEEK_END))
        {
            MZ_FCLOSE(pFile);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
        }
 
        file_size = MZ_FTELL64(pFile);
    }
 
    /* TODO: Better sanity check archive_size and the # of actual remaining bytes */
 
    if (file_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
    {
  MZ_FCLOSE(pFile);
        return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
    }
 
    if (!mz_zip_reader_init_internal(pZip, flags))
    {
        MZ_FCLOSE(pFile);
        return MZ_FALSE;
    }
 
    pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
    pZip->m_pRead = mz_zip_file_read_func;
    pZip->m_pIO_opaque = pZip;
    pZip->m_pState->m_pFile = pFile;
    pZip->m_archive_size = file_size;
    pZip->m_pState->m_file_archive_start_ofs = file_start_ofs;
 
    if (!mz_zip_reader_read_central_dir(pZip, flags))
    {
        mz_zip_reader_end_internal(pZip, MZ_FALSE);
        return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_file_archive_start_ofs, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_FCLOSE, MZ_FILE, MZ_FOPEN, MZ_FSEEK64, MZ_FTELL64, MZ_TRUE, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_OPEN_FAILED, mz_zip_file_read_func(), MZ_ZIP_FILE_SEEK_FAILED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_NOT_AN_ARCHIVE, mz_zip_reader_end_internal(), mz_zip_reader_init_internal(), mz_zip_reader_read_central_dir(), mz_zip_set_error(), and MZ_ZIP_TYPE_FILE.

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_extract_archive_file_to_heap_v2(), mz_zip_reader_init_file(), and mz_zip_validate_file_archive().

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◆ mz_zip_reader_init_internal()

static mz_bool mz_zip_reader_init_internal	(	mz_zip_archive *	pZip,
		mz_uint	flags
	)

static

{
    (void)flags;
    if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!pZip->m_pAlloc)
        pZip->m_pAlloc = miniz_def_alloc_func;
    if (!pZip->m_pFree)
        pZip->m_pFree = miniz_def_free_func;
    if (!pZip->m_pRealloc)
        pZip->m_pRealloc = miniz_def_realloc_func;
 
    pZip->m_archive_size = 0;
    pZip->m_central_directory_file_ofs = 0;
    pZip->m_total_files = 0;
    pZip->m_last_error = MZ_ZIP_NO_ERROR;
 
    if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
    pZip->m_pState->m_init_flags = flags;
    pZip->m_pState->m_zip64 = MZ_FALSE;
    pZip->m_pState->m_zip64_has_extended_info_fields = MZ_FALSE;
 
    pZip->m_zip_mode = MZ_ZIP_MODE_READING;
 
    return MZ_TRUE;
}

Referenced by mz_zip_reader_init(), mz_zip_reader_init_cfile(), mz_zip_reader_init_file_v2(), and mz_zip_reader_init_mem().

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◆ mz_zip_reader_init_mem()

mz_bool mz_zip_reader_init_mem	(	mz_zip_archive *	pZip,
		const void *	pMem,
		size_t	size,
		mz_uint	flags
	)

{
    if (!pMem)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
 
    if (!mz_zip_reader_init_internal(pZip, flags))
        return MZ_FALSE;
 
    pZip->m_zip_type = MZ_ZIP_TYPE_MEMORY;
    pZip->m_archive_size = size;
    pZip->m_pRead = mz_zip_mem_read_func;
    pZip->m_pIO_opaque = pZip;
    pZip->m_pNeeds_keepalive = NULL;
 
#ifdef __cplusplus
    pZip->m_pState->m_pMem = const_cast<void *>(pMem);
#else
    pZip->m_pState->m_pMem = (void *)pMem;
#endif
 
    pZip->m_pState->m_mem_size = size;
 
    if (!mz_zip_reader_read_central_dir(pZip, flags))
    {
        mz_zip_reader_end_internal(pZip, MZ_FALSE);
        return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_mem_size, mz_zip_archive::m_pIO_opaque, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pNeeds_keepalive, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_TRUE, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_INVALID_PARAMETER, mz_zip_mem_read_func(), MZ_ZIP_NOT_AN_ARCHIVE, mz_zip_reader_end_internal(), mz_zip_reader_init_internal(), mz_zip_reader_read_central_dir(), mz_zip_set_error(), and MZ_ZIP_TYPE_MEMORY.

Referenced by mz_zip_validate_mem_archive().

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◆ mz_zip_reader_is_file_a_directory()

mz_bool mz_zip_reader_is_file_a_directory	(	mz_zip_archive *	pZip,
		mz_uint	file_index
	)

{
    mz_uint filename_len, attribute_mapping_id, external_attr;
    const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
    if (!p)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return MZ_FALSE;
    }
 
    filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    if (filename_len)
    {
        if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/')
            return MZ_TRUE;
    }
 
    /* Bugfix: This code was also checking if the internal attribute was non-zero, which wasn't correct. */
    /* Most/all zip writers (hopefully) set DOS file/directory attributes in the low 16-bits, so check for the DOS directory flag and ignore the source OS ID in the created by field. */
    /* FIXME: Remove this check? Is it necessary - we already check the filename. */
    attribute_mapping_id = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS) >> 8;
    (void)attribute_mapping_id;
 
    external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
    if ((external_attr & MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG) != 0)
    {
        return MZ_TRUE;
    }
 
    return MZ_FALSE;
}

References MZ_FALSE, MZ_READ_LE16, MZ_READ_LE32, MZ_TRUE, MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CDH_VERSION_MADE_BY_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG, mz_zip_get_cdh(), MZ_ZIP_INVALID_PARAMETER, mz_zip_set_error(), and void().

Referenced by mz_zip_file_stat_internal().

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◆ mz_zip_reader_is_file_encrypted()

mz_bool mz_zip_reader_is_file_encrypted	(	mz_zip_archive *	pZip,
		mz_uint	file_index
	)

{
    mz_uint m_bit_flag;
    const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
    if (!p)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return MZ_FALSE;
    }
 
    m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
    return (m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) != 0;
}

References MZ_FALSE, MZ_READ_LE16, MZ_ZIP_CDH_BIT_FLAG_OFS, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION, mz_zip_get_cdh(), MZ_ZIP_INVALID_PARAMETER, and mz_zip_set_error().

Referenced by mz_zip_file_stat_internal().

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◆ mz_zip_reader_is_file_supported()

mz_bool mz_zip_reader_is_file_supported	(	mz_zip_archive *	pZip,
		mz_uint	file_index
	)

{
    mz_uint bit_flag;
    mz_uint method;
 
    const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
    if (!p)
    {
        mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return MZ_FALSE;
    }
 
    method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
    bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
 
    if ((method != 0) && (method != MZ_DEFLATED))
    {
        mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
        return MZ_FALSE;
    }
 
    if (bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION))
    {
        mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
        return MZ_FALSE;
    }
 
    if (bit_flag & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)
    {
        mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
        return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References MZ_DEFLATED, MZ_FALSE, MZ_READ_LE16, MZ_TRUE, MZ_ZIP_CDH_BIT_FLAG_OFS, MZ_ZIP_CDH_METHOD_OFS, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION, mz_zip_get_cdh(), MZ_ZIP_INVALID_PARAMETER, mz_zip_set_error(), MZ_ZIP_UNSUPPORTED_ENCRYPTION, MZ_ZIP_UNSUPPORTED_FEATURE, and MZ_ZIP_UNSUPPORTED_METHOD.

Referenced by mz_zip_file_stat_internal().

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◆ mz_zip_reader_locate_file()

int mz_zip_reader_locate_file	(	mz_zip_archive *	pZip,
		const char *	pName,
		const char *	pComment,
		mz_uint	flags
	)

{
    mz_uint32 index;
    if (!mz_zip_reader_locate_file_v2(pZip, pName, pComment, flags, &index))
        return -1;
    else
        return (int)index;
}

References mz_zip_reader_locate_file_v2().

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◆ mz_zip_reader_locate_file_v2()

mz_bool mz_zip_reader_locate_file_v2	(	mz_zip_archive *	pZip,
		const char *	pName,
		const char *	pComment,
		mz_uint	flags,
		mz_uint32 *	pIndex
	)

{
    mz_uint file_index;
    size_t name_len, comment_len;
 
    if (pIndex)
        *pIndex = 0;
 
    if ((!pZip) || (!pZip->m_pState) || (!pName))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    /* See if we can use a binary search */
    if (((pZip->m_pState->m_init_flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0) &&
        (pZip->m_zip_mode == MZ_ZIP_MODE_READING) &&
        ((flags & (MZ_ZIP_FLAG_IGNORE_PATH | MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) && (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size))
    {
        return mz_zip_locate_file_binary_search(pZip, pName, pIndex);
    }
 
    /* Locate the entry by scanning the entire central directory */
    name_len = strlen(pName);
    if (name_len > MZ_UINT16_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    comment_len = pComment ? strlen(pComment) : 0;
    if (comment_len > MZ_UINT16_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    for (file_index = 0; file_index < pZip->m_total_files; file_index++)
    {
        const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
        mz_uint filename_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS);
        const char *pFilename = (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
        if (filename_len < name_len)
            continue;
        if (comment_len)
        {
            mz_uint file_extra_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_EXTRA_LEN_OFS), file_comment_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS);
            const char *pFile_comment = pFilename + filename_len + file_extra_len;
            if ((file_comment_len != comment_len) || (!mz_zip_string_equal(pComment, pFile_comment, file_comment_len, flags)))
                continue;
        }
        if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len))
        {
            int ofs = filename_len - 1;
            do
            {
                if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || (pFilename[ofs] == ':'))
                    break;
            } while (--ofs >= 0);
            ofs++;
            pFilename += ofs;
            filename_len -= ofs;
        }
        if ((filename_len == name_len) && (mz_zip_string_equal(pName, pFilename, filename_len, flags)))
        {
            if (pIndex)
                *pIndex = file_index;
            return MZ_TRUE;
        }
    }
 
    return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_internal_state_tag::m_init_flags, mz_zip_archive::m_pState, mz_zip_array::m_size, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_total_files, mz_zip_archive::m_zip_mode, MZ_READ_LE16, MZ_TRUE, MZ_UINT16_MAX, MZ_ZIP_ARRAY_ELEMENT, MZ_ZIP_CDH_COMMENT_LEN_OFS, MZ_ZIP_CDH_EXTRA_LEN_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_NOT_FOUND, MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, MZ_ZIP_FLAG_IGNORE_PATH, MZ_ZIP_INVALID_PARAMETER, mz_zip_locate_file_binary_search(), MZ_ZIP_MODE_READING, mz_zip_set_error(), and mz_zip_string_equal().

Referenced by mz_zip_extract_archive_file_to_heap_v2(), mz_zip_reader_extract_file_iter_new(), mz_zip_reader_extract_file_to_callback(), mz_zip_reader_extract_file_to_cfile(), mz_zip_reader_extract_file_to_file(), mz_zip_reader_extract_file_to_heap(), mz_zip_reader_extract_file_to_mem_no_alloc(), mz_zip_reader_locate_file(), and mz_zip_validate_archive().

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◆ mz_zip_reader_locate_header_sig()

static mz_bool mz_zip_reader_locate_header_sig	(	mz_zip_archive *	pZip,
		mz_uint32	record_sig,
		mz_uint32	record_size,
		mz_int64 *	pOfs
	)

static

{
    mz_int64 cur_file_ofs;
    mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
    mz_uint8 *pBuf = (mz_uint8 *)buf_u32;
 
    /* Basic sanity checks - reject files which are too small */
    if (pZip->m_archive_size < record_size)
        return MZ_FALSE;
 
    /* Find the record by scanning the file from the end towards the beginning. */
    cur_file_ofs = MZ_MAX((mz_int64)pZip->m_archive_size - (mz_int64)sizeof(buf_u32), 0);
    for (;;)
    {
        int i, n = (int)MZ_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs);
 
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (mz_uint)n)
            return MZ_FALSE;
 
        for (i = n - 4; i >= 0; --i)
        {
            mz_uint s = MZ_READ_LE32(pBuf + i);
            if (s == record_sig)
            {
                if ((pZip->m_archive_size - (cur_file_ofs + i)) >= record_size)
                    break;
            }
        }
 
        if (i >= 0)
        {
            cur_file_ofs += i;
            break;
        }
 
        /* Give up if we've searched the entire file, or we've gone back "too far" (~64kb) */
        if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= (MZ_UINT16_MAX + record_size)))
            return MZ_FALSE;
 
        cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0);
    }
 
    *pOfs = cur_file_ofs;
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, MZ_FALSE, MZ_MAX, MZ_MIN, MZ_READ_LE32, MZ_TRUE, and MZ_UINT16_MAX.

Referenced by mz_zip_reader_read_central_dir().

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◆ mz_zip_reader_read_central_dir()

static mz_bool mz_zip_reader_read_central_dir	(	mz_zip_archive *	pZip,
		mz_uint	flags
	)

static

{
    mz_uint cdir_size = 0, cdir_entries_on_this_disk = 0, num_this_disk = 0, cdir_disk_index = 0;
    mz_uint64 cdir_ofs = 0;
    mz_int64 cur_file_ofs = 0;
    const mz_uint8 *p;
 
    mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
    mz_uint8 *pBuf = (mz_uint8 *)buf_u32;
    mz_bool sort_central_dir = ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0);
    mz_uint32 zip64_end_of_central_dir_locator_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pZip64_locator = (mz_uint8 *)zip64_end_of_central_dir_locator_u32;
 
    mz_uint32 zip64_end_of_central_dir_header_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pZip64_end_of_central_dir = (mz_uint8 *)zip64_end_of_central_dir_header_u32;
 
    mz_uint64 zip64_end_of_central_dir_ofs = 0;
 
    /* Basic sanity checks - reject files which are too small, and check the first 4 bytes of the file to make sure a local header is there. */
    if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
 
    if (!mz_zip_reader_locate_header_sig(pZip, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, &cur_file_ofs))
        return mz_zip_set_error(pZip, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR);
 
    /* Read and verify the end of central directory record. */
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
    if (MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
 
    if (cur_file_ofs >= (MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE))
    {
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs - MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE, pZip64_locator, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
        {
            if (MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG)
            {
                zip64_end_of_central_dir_ofs = MZ_READ_LE64(pZip64_locator + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS);
                if (zip64_end_of_central_dir_ofs > (pZip->m_archive_size - MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE))
                    return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
 
                if (pZip->m_pRead(pZip->m_pIO_opaque, zip64_end_of_central_dir_ofs, pZip64_end_of_central_dir, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
                {
                    if (MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG)
                    {
                        pZip->m_pState->m_zip64 = MZ_TRUE;
                    }
                }
            }
        }
    }
 
    pZip->m_total_files = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS);
    cdir_entries_on_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
    num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS);
    cdir_disk_index = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS);
    cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS);
    cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS);
 
    if (pZip->m_pState->m_zip64)
    {
        mz_uint32 zip64_total_num_of_disks = MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS);
        mz_uint64 zip64_cdir_total_entries = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS);
        mz_uint64 zip64_cdir_total_entries_on_this_disk = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
        mz_uint64 zip64_size_of_end_of_central_dir_record = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS);
        mz_uint64 zip64_size_of_central_directory = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_SIZE_OFS);
 
        if (zip64_size_of_end_of_central_dir_record < (MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - 12))
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
        if (zip64_total_num_of_disks != 1U)
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
 
        /* Check for miniz's practical limits */
        if (zip64_cdir_total_entries > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
 
        pZip->m_total_files = (mz_uint32)zip64_cdir_total_entries;
 
        if (zip64_cdir_total_entries_on_this_disk > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
 
        cdir_entries_on_this_disk = (mz_uint32)zip64_cdir_total_entries_on_this_disk;
 
        /* Check for miniz's current practical limits (sorry, this should be enough for millions of files) */
        if (zip64_size_of_central_directory > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
        cdir_size = (mz_uint32)zip64_size_of_central_directory;
 
        num_this_disk = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS);
 
        cdir_disk_index = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS);
 
        cdir_ofs = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_OFS_OFS);
    }
 
    if (pZip->m_total_files != cdir_entries_on_this_disk)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
 
    if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1)))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
 
    if (cdir_size < pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    pZip->m_central_directory_file_ofs = cdir_ofs;
 
    if (pZip->m_total_files)
    {
        mz_uint i, n;
        /* Read the entire central directory into a heap block, and allocate another heap block to hold the unsorted central dir file record offsets, and possibly another to hold the sorted indices. */
        if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, MZ_FALSE)) ||
            (!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, pZip->m_total_files, MZ_FALSE)))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
        if (sort_central_dir)
        {
            if (!mz_zip_array_resize(pZip, &pZip->m_pState->m_sorted_central_dir_offsets, pZip->m_total_files, MZ_FALSE))
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, pZip->m_pState->m_central_dir.m_p, cdir_size) != cdir_size)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
        /* Now create an index into the central directory file records, do some basic sanity checking on each record */
        p = (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p;
        for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i)
        {
            mz_uint total_header_size, disk_index, bit_flags, filename_size, ext_data_size;
            mz_uint64 comp_size, decomp_size, local_header_ofs;
 
            if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) || (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG))
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, i) = (mz_uint32)(p - (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p);
 
            if (sort_central_dir)
                MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, mz_uint32, i) = i;
 
            comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
            decomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
            local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
            filename_size = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
            ext_data_size = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
 
            if ((!pZip->m_pState->m_zip64_has_extended_info_fields) &&
                (ext_data_size) &&
                (MZ_MAX(MZ_MAX(comp_size, decomp_size), local_header_ofs) == MZ_UINT32_MAX))
            {
                /* Attempt to find zip64 extended information field in the entry's extra data */
                mz_uint32 extra_size_remaining = ext_data_size;
 
                if (extra_size_remaining)
                {
          const mz_uint8 *pExtra_data;
          void* buf = NULL;
 
          if (MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + ext_data_size > n)
          {
            buf = MZ_MALLOC(ext_data_size);
            if(buf==NULL)
              return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
            if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size, buf, ext_data_size) != ext_data_size)
            {
              MZ_FREE(buf);
              return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            }
 
            pExtra_data = (mz_uint8*)buf;
          }
          else
          {
            pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size;
          }
 
                    do
                    {
                        mz_uint32 field_id;
                        mz_uint32 field_data_size;
 
            if (extra_size_remaining < (sizeof(mz_uint16) * 2))
            {
              MZ_FREE(buf);
              return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
                        field_id = MZ_READ_LE16(pExtra_data);
                        field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
 
            if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining)
            {
              MZ_FREE(buf);
              return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
                        if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
                        {
                            /* Ok, the archive didn't have any zip64 headers but it uses a zip64 extended information field so mark it as zip64 anyway (this can occur with infozip's zip util when it reads compresses files from stdin). */
                            pZip->m_pState->m_zip64 = MZ_TRUE;
                            pZip->m_pState->m_zip64_has_extended_info_fields = MZ_TRUE;
                            break;
                        }
 
                        pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
                        extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size;
                    } while (extra_size_remaining);
 
          MZ_FREE(buf);
                }
            }
 
            /* I've seen archives that aren't marked as zip64 that uses zip64 ext data, argh */
            if ((comp_size != MZ_UINT32_MAX) && (decomp_size != MZ_UINT32_MAX))
            {
                if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) && (decomp_size != comp_size)) || (decomp_size && !comp_size))
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
            disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS);
            if ((disk_index == MZ_UINT16_MAX) || ((disk_index != num_this_disk) && (disk_index != 1)))
                return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
 
            if (comp_size != MZ_UINT32_MAX)
            {
                if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
            bit_flags = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
            if (bit_flags & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED)
                return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
 
            if ((total_header_size = MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > n)
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            n -= total_header_size;
            p += total_header_size;
        }
    }
 
    if (sort_central_dir)
        mz_zip_reader_sort_central_dir_offsets_by_filename(pZip);
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_central_directory_file_ofs, mz_zip_array::m_p, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_total_files, mz_zip_internal_state_tag::m_zip64, mz_zip_internal_state_tag::m_zip64_has_extended_info_fields, MZ_FALSE, MZ_FREE, MZ_MALLOC, MZ_MAX, MZ_READ_LE16, MZ_READ_LE32, MZ_READ_LE64, MZ_TRUE, MZ_UINT16_MAX, MZ_UINT32_MAX, MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_ZIP64_ECDH_CDIR_OFS_OFS, MZ_ZIP64_ECDH_CDIR_SIZE_OFS, MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS, MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS, MZ_ZIP64_ECDH_SIG_OFS, MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS, MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS, MZ_ZIP64_ECDL_SIG_OFS, MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_ARRAY_ELEMENT, mz_zip_array_resize(), MZ_ZIP_CDH_BIT_FLAG_OFS, MZ_ZIP_CDH_COMMENT_LEN_OFS, MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_CDH_DISK_START_OFS, MZ_ZIP_CDH_EXTRA_LEN_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_ZIP_CDH_METHOD_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_ZIP_ECDH_CDIR_OFS_OFS, MZ_ZIP_ECDH_CDIR_SIZE_OFS, MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS, MZ_ZIP_ECDH_NUM_THIS_DISK_OFS, MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR, MZ_ZIP_FILE_READ_FAILED, MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, MZ_ZIP_LOCAL_DIR_HEADER_SIZE, MZ_ZIP_NOT_AN_ARCHIVE, mz_zip_reader_locate_header_sig(), mz_zip_reader_sort_central_dir_offsets_by_filename(), mz_zip_set_error(), MZ_ZIP_TOO_MANY_FILES, MZ_ZIP_UNSUPPORTED_CDIR_SIZE, MZ_ZIP_UNSUPPORTED_ENCRYPTION, and MZ_ZIP_UNSUPPORTED_MULTIDISK.

Referenced by mz_zip_reader_init(), mz_zip_reader_init_cfile(), mz_zip_reader_init_file_v2(), and mz_zip_reader_init_mem().

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◆ mz_zip_reader_sort_central_dir_offsets_by_filename()

static void mz_zip_reader_sort_central_dir_offsets_by_filename ( mz_zip_archive * pZip )

static

{
    mz_zip_internal_state *pState = pZip->m_pState;
    const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
    const mz_zip_array *pCentral_dir = &pState->m_central_dir;
    mz_uint32 *pIndices;
    mz_uint32 start, end;
    const mz_uint32 size = pZip->m_total_files;
 
    if (size <= 1U)
        return;
 
    pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
 
    start = (size - 2U) >> 1U;
    for (;;)
    {
        mz_uint64 child, root = start;
        for (;;)
        {
            if ((child = (root << 1U) + 1U) >= size)
                break;
            child += (((child + 1U) < size) && (mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U])));
            if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
                break;
            MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
            root = child;
        }
        if (!start)
            break;
        start--;
    }
 
    end = size - 1;
    while (end > 0)
    {
        mz_uint64 child, root = 0;
        MZ_SWAP_UINT32(pIndices[end], pIndices[0]);
        for (;;)
        {
            if ((child = (root << 1U) + 1U) >= end)
                break;
            child += (((child + 1U) < end) && mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U]));
            if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
                break;
            MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
            root = child;
        }
        end--;
    }
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_pState, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_total_files, MZ_SWAP_UINT32, MZ_ZIP_ARRAY_ELEMENT, and mz_zip_reader_filename_less().

Referenced by mz_zip_reader_read_central_dir().

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◆ mz_zip_set_error()

static MZ_FORCEINLINE mz_bool mz_zip_set_error	(	mz_zip_archive *	pZip,
		mz_zip_error	err_num
	)

static

{
    if (pZip)
        pZip->m_last_error = err_num;
    return MZ_FALSE;
}

References mz_zip_archive::m_last_error, and MZ_FALSE.

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◆ mz_zip_set_file_times()

static mz_bool mz_zip_set_file_times	(	const char *	pFilename,
		MZ_TIME_T	access_time,
		MZ_TIME_T	modified_time
	)

static

{
    struct utimbuf t;
 
    memset(&t, 0, sizeof(t));
    t.actime = access_time;
    t.modtime = modified_time;
 
    return !utime(pFilename, &t);
}

Referenced by mz_zip_reader_extract_to_file().

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◆ mz_zip_set_last_error()

mz_zip_error mz_zip_set_last_error	(	mz_zip_archive *	pZip,
		mz_zip_error	err_num
	)

{
    mz_zip_error prev_err;
 
    if (!pZip)
        return MZ_ZIP_INVALID_PARAMETER;
 
    prev_err = pZip->m_last_error;
 
    pZip->m_last_error = err_num;
    return prev_err;
}

References mz_zip_archive::m_last_error, and MZ_ZIP_INVALID_PARAMETER.

Referenced by mz_zip_clear_last_error().

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◆ mz_zip_string_equal()

static MZ_FORCEINLINE mz_bool mz_zip_string_equal	(	const char *	pA,
		const char *	pB,
		mz_uint	len,
		mz_uint	flags
	)

static

{
    mz_uint i;
    if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE)
        return 0 == memcmp(pA, pB, len);
    for (i = 0; i < len; ++i)
        if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i]))
            return MZ_FALSE;
    return MZ_TRUE;
}

References MZ_FALSE, MZ_TOLOWER, MZ_TRUE, and MZ_ZIP_FLAG_CASE_SENSITIVE.

Referenced by mz_zip_reader_locate_file_v2().

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◆ mz_zip_time_t_to_dos_time()

static void mz_zip_time_t_to_dos_time	(	MZ_TIME_T	time,
		mz_uint16 *	pDOS_time,
		mz_uint16 *	pDOS_date
	)

static

{
#ifdef _MSC_VER
    struct tm tm_struct;
    struct tm *tm = &tm_struct;
    errno_t err = localtime_s(tm, &time);
    if (err)
    {
        *pDOS_date = 0;
        *pDOS_time = 0;
        return;
    }
#else
    struct tm *tm = localtime(&time);
#endif /* #ifdef _MSC_VER */
 
    *pDOS_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + ((tm->tm_sec) >> 1));
    *pDOS_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + ((tm->tm_mon + 1) << 5) + tm->tm_mday);
}

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_validate_archive()

mz_bool mz_zip_validate_archive	(	mz_zip_archive *	pZip,
		mz_uint	flags
	)

{
    mz_zip_internal_state *pState;
    uint32_t i;
 
    if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    /* Basic sanity checks */
    if (!pState->m_zip64)
    {
        if (pZip->m_total_files > MZ_UINT16_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
        if (pZip->m_archive_size > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
    }
    else
    {
        if (pZip->m_total_files >= MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
        if (pState->m_central_dir.m_size >= MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
    }
 
    for (i = 0; i < pZip->m_total_files; i++)
    {
        if (MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG & flags)
        {
            mz_uint32 found_index;
            mz_zip_archive_file_stat stat;
 
            if (!mz_zip_reader_file_stat(pZip, i, &stat))
                return MZ_FALSE;
 
            if (!mz_zip_reader_locate_file_v2(pZip, stat.m_filename, NULL, 0, &found_index))
                return MZ_FALSE;
 
            /* This check can fail if there are duplicate filenames in the archive (which we don't check for when writing - that's up to the user) */
            if (found_index != i)
                return mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
        }
 
        if (!mz_zip_validate_file(pZip, i, flags))
            return MZ_FALSE;
    }
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_central_dir, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pFree, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_array::m_size, mz_zip_archive::m_total_files, mz_zip_internal_state_tag::m_zip64, MZ_FALSE, MZ_TRUE, MZ_UINT16_MAX, MZ_UINT32_MAX, MZ_ZIP_ARCHIVE_TOO_LARGE, MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG, MZ_ZIP_INVALID_PARAMETER, mz_zip_reader_file_stat(), mz_zip_reader_locate_file_v2(), mz_zip_set_error(), mz_zip_validate_file(), MZ_ZIP_VALIDATION_FAILED, and stat.

Referenced by mz_zip_validate_file_archive(), and mz_zip_validate_mem_archive().

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◆ mz_zip_validate_file()

mz_bool mz_zip_validate_file	(	mz_zip_archive *	pZip,
		mz_uint	file_index,
		mz_uint	flags
	)

{
    mz_zip_archive_file_stat file_stat;
    mz_zip_internal_state *pState;
    const mz_uint8 *pCentral_dir_header;
    mz_bool found_zip64_ext_data_in_cdir = MZ_FALSE;
    mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
    mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
    mz_uint64 local_header_ofs = 0;
    mz_uint32 local_header_filename_len, local_header_extra_len, local_header_crc32;
    mz_uint64 local_header_comp_size, local_header_uncomp_size;
    mz_uint32 uncomp_crc32 = MZ_CRC32_INIT;
    mz_bool has_data_descriptor;
    mz_uint32 local_header_bit_flags;
 
    mz_zip_array file_data_array;
    mz_zip_array_init(&file_data_array, 1);
 
    if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (file_index > pZip->m_total_files)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    pCentral_dir_header = mz_zip_get_cdh(pZip, file_index);
 
    if (!mz_zip_file_stat_internal(pZip, file_index, pCentral_dir_header, &file_stat, &found_zip64_ext_data_in_cdir))
        return MZ_FALSE;
 
    /* A directory or zero length file */
    if ((file_stat.m_is_directory) || (!file_stat.m_uncomp_size))
        return MZ_TRUE;
 
    /* Encryption and patch files are not supported. */
    if (file_stat.m_is_encrypted)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
 
    /* This function only supports stored and deflate. */
    if ((file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
 
    if (!file_stat.m_is_supported)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
 
    /* Read and parse the local directory entry. */
    local_header_ofs = file_stat.m_local_header_ofs;
    if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
    if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    local_header_filename_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
    local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
    local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
    local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
    local_header_crc32 = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_CRC32_OFS);
    local_header_bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
    has_data_descriptor = (local_header_bit_flags & 8) != 0;
 
    if (local_header_filename_len != strlen(file_stat.m_filename))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    if ((local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size) > pZip->m_archive_size)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    if (!mz_zip_array_resize(pZip, &file_data_array, MZ_MAX(local_header_filename_len, local_header_extra_len), MZ_FALSE))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    if (local_header_filename_len)
    {
        if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE, file_data_array.m_p, local_header_filename_len) != local_header_filename_len)
        {
            mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            goto handle_failure;
        }
 
        /* I've seen 1 archive that had the same pathname, but used backslashes in the local dir and forward slashes in the central dir. Do we care about this? For now, this case will fail validation. */
        if (memcmp(file_stat.m_filename, file_data_array.m_p, local_header_filename_len) != 0)
        {
            mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
            goto handle_failure;
        }
    }
 
    if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX)))
    {
        mz_uint32 extra_size_remaining = local_header_extra_len;
        const mz_uint8 *pExtra_data = (const mz_uint8 *)file_data_array.m_p;
 
        if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len, file_data_array.m_p, local_header_extra_len) != local_header_extra_len)
        {
            mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            goto handle_failure;
        }
 
        do
        {
            mz_uint32 field_id, field_data_size, field_total_size;
 
            if (extra_size_remaining < (sizeof(mz_uint16) * 2))
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            field_id = MZ_READ_LE16(pExtra_data);
            field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
            field_total_size = field_data_size + sizeof(mz_uint16) * 2;
 
            if (field_total_size > extra_size_remaining)
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
            {
                const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32);
 
                if (field_data_size < sizeof(mz_uint64) * 2)
                {
                    mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
                    goto handle_failure;
                }
 
                local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
                local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64));
 
                found_zip64_ext_data_in_ldir = MZ_TRUE;
                break;
            }
 
            pExtra_data += field_total_size;
            extra_size_remaining -= field_total_size;
        } while (extra_size_remaining);
    }
 
    /* TODO: parse local header extra data when local_header_comp_size is 0xFFFFFFFF! (big_descriptor.zip) */
    /* I've seen zips in the wild with the data descriptor bit set, but proper local header values and bogus data descriptors */
    if ((has_data_descriptor) && (!local_header_comp_size) && (!local_header_crc32))
    {
        mz_uint8 descriptor_buf[32];
        mz_bool has_id;
        const mz_uint8 *pSrc;
        mz_uint32 file_crc32;
        mz_uint64 comp_size = 0, uncomp_size = 0;
 
        mz_uint32 num_descriptor_uint32s = ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) ? 6 : 4;
 
        if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size, descriptor_buf, sizeof(mz_uint32) * num_descriptor_uint32s) != (sizeof(mz_uint32) * num_descriptor_uint32s))
        {
            mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            goto handle_failure;
        }
 
        has_id = (MZ_READ_LE32(descriptor_buf) == MZ_ZIP_DATA_DESCRIPTOR_ID);
        pSrc = has_id ? (descriptor_buf + sizeof(mz_uint32)) : descriptor_buf;
 
        file_crc32 = MZ_READ_LE32(pSrc);
 
        if ((pState->m_zip64) || (found_zip64_ext_data_in_ldir))
        {
            comp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32));
            uncomp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32) + sizeof(mz_uint64));
        }
        else
        {
            comp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32));
            uncomp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32) + sizeof(mz_uint32));
        }
 
        if ((file_crc32 != file_stat.m_crc32) || (comp_size != file_stat.m_comp_size) || (uncomp_size != file_stat.m_uncomp_size))
        {
            mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
            goto handle_failure;
        }
    }
    else
    {
        if ((local_header_crc32 != file_stat.m_crc32) || (local_header_comp_size != file_stat.m_comp_size) || (local_header_uncomp_size != file_stat.m_uncomp_size))
        {
            mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
            goto handle_failure;
        }
    }
 
    mz_zip_array_clear(pZip, &file_data_array);
 
    if ((flags & MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY) == 0)
    {
        if (!mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_compute_crc32_callback, &uncomp_crc32, 0))
            return MZ_FALSE;
 
        /* 1 more check to be sure, although the extract checks too. */
        if (uncomp_crc32 != file_stat.m_crc32)
        {
            mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
            return MZ_FALSE;
        }
    }
 
    return MZ_TRUE;
 
handle_failure:
    mz_zip_array_clear(pZip, &file_data_array);
    return MZ_FALSE;
}

Referenced by mz_zip_validate_archive().

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◆ mz_zip_validate_file_archive()

mz_bool mz_zip_validate_file_archive	(	const char *	pFilename,
		mz_uint	flags,
		mz_zip_error *	pErr
	)

{
    mz_bool success = MZ_TRUE;
    mz_zip_archive zip;
    mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
 
    if (!pFilename)
    {
        if (pErr)
            *pErr = MZ_ZIP_INVALID_PARAMETER;
        return MZ_FALSE;
    }
 
    mz_zip_zero_struct(&zip);
 
    if (!mz_zip_reader_init_file_v2(&zip, pFilename, flags, 0, 0))
    {
        if (pErr)
            *pErr = zip.m_last_error;
        return MZ_FALSE;
    }
 
    if (!mz_zip_validate_archive(&zip, flags))
    {
        actual_err = zip.m_last_error;
        success = MZ_FALSE;
    }
 
    if (!mz_zip_reader_end_internal(&zip, success))
    {
        if (!actual_err)
            actual_err = zip.m_last_error;
        success = MZ_FALSE;
    }
 
    if (pErr)
        *pErr = actual_err;
 
    return success;
}

References mz_zip_archive::m_last_error, MZ_FALSE, MZ_TRUE, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_NO_ERROR, mz_zip_reader_end_internal(), mz_zip_reader_init_file_v2(), mz_zip_validate_archive(), and mz_zip_zero_struct().

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◆ mz_zip_validate_mem_archive()

mz_bool mz_zip_validate_mem_archive	(	const void *	pMem,
		size_t	size,
		mz_uint	flags,
		mz_zip_error *	pErr
	)

{
    mz_bool success = MZ_TRUE;
    mz_zip_archive zip;
    mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
 
    if ((!pMem) || (!size))
    {
        if (pErr)
            *pErr = MZ_ZIP_INVALID_PARAMETER;
        return MZ_FALSE;
    }
 
    mz_zip_zero_struct(&zip);
 
    if (!mz_zip_reader_init_mem(&zip, pMem, size, flags))
    {
        if (pErr)
            *pErr = zip.m_last_error;
        return MZ_FALSE;
    }
 
    if (!mz_zip_validate_archive(&zip, flags))
    {
        actual_err = zip.m_last_error;
        success = MZ_FALSE;
    }
 
    if (!mz_zip_reader_end_internal(&zip, success))
    {
        if (!actual_err)
            actual_err = zip.m_last_error;
        success = MZ_FALSE;
    }
 
    if (pErr)
        *pErr = actual_err;
 
    return success;
}

References mz_zip_archive::m_last_error, MZ_FALSE, MZ_TRUE, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_NO_ERROR, mz_zip_reader_end_internal(), mz_zip_reader_init_mem(), mz_zip_validate_archive(), and mz_zip_zero_struct().

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◆ mz_zip_writer_add_cfile()

mz_bool mz_zip_writer_add_cfile	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		MZ_FILE *	pSrc_file,
		mz_uint64	size_to_add,
		const MZ_TIME_T *	pFile_time,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		const char *	user_extra_data,
		mz_uint	user_extra_data_len,
		const char *	user_extra_data_central,
		mz_uint	user_extra_data_central_len
	)

{
  return mz_zip_writer_add_read_buf_callback(pZip, pArchive_name, mz_file_read_func_stdio, pSrc_file, size_to_add, pFile_time, pComment, comment_size, level_and_flags,
    user_extra_data, user_extra_data_len, user_extra_data_central, user_extra_data_central_len);
}

References mz_file_read_func_stdio(), and mz_zip_writer_add_read_buf_callback().

Referenced by mz_zip_writer_add_file().

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◆ mz_zip_writer_add_file()

mz_bool mz_zip_writer_add_file	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		const char *	pSrc_filename,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags
	)

{
    MZ_FILE *pSrc_file = NULL;
    mz_uint64 uncomp_size = 0;
    MZ_TIME_T file_modified_time;
    MZ_TIME_T *pFile_time = NULL;
    mz_bool status;
 
    memset(&file_modified_time, 0, sizeof(file_modified_time));
 
#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
    pFile_time = &file_modified_time;
    if (!mz_zip_get_file_modified_time(pSrc_filename, &file_modified_time))
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_STAT_FAILED);
#endif
 
    pSrc_file = MZ_FOPEN(pSrc_filename, "rb");
    if (!pSrc_file)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
 
    MZ_FSEEK64(pSrc_file, 0, SEEK_END);
    uncomp_size = MZ_FTELL64(pSrc_file);
    MZ_FSEEK64(pSrc_file, 0, SEEK_SET);
 
    status = mz_zip_writer_add_cfile(pZip, pArchive_name, pSrc_file, uncomp_size, pFile_time, pComment, comment_size, level_and_flags, NULL, 0, NULL, 0);
 
    MZ_FCLOSE(pSrc_file);
 
    return status;
}

References MZ_FCLOSE, MZ_FILE, MZ_FOPEN, MZ_FSEEK64, MZ_FTELL64, MZ_TIME_T, MZ_ZIP_FILE_OPEN_FAILED, MZ_ZIP_FILE_STAT_FAILED, mz_zip_get_file_modified_time(), mz_zip_set_error(), mz_zip_writer_add_cfile(), and SEEK_SET.

Here is the call graph for this function:

◆ mz_zip_writer_add_from_zip_reader()

mz_bool mz_zip_writer_add_from_zip_reader	(	mz_zip_archive *	pZip,
		mz_zip_archive *	pSource_zip,
		mz_uint	src_file_index
	)

{
    mz_uint n, bit_flags, num_alignment_padding_bytes, src_central_dir_following_data_size;
    mz_uint64 src_archive_bytes_remaining, local_dir_header_ofs;
    mz_uint64 cur_src_file_ofs, cur_dst_file_ofs;
    mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
    mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
    mz_uint8 new_central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
    size_t orig_central_dir_size;
    mz_zip_internal_state *pState;
    void *pBuf;
    const mz_uint8 *pSrc_central_header;
    mz_zip_archive_file_stat src_file_stat;
    mz_uint32 src_filename_len, src_comment_len, src_ext_len;
    mz_uint32 local_header_filename_size, local_header_extra_len;
    mz_uint64 local_header_comp_size, local_header_uncomp_size;
    mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
 
    /* Sanity checks */
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pSource_zip->m_pRead))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    /* Don't support copying files from zip64 archives to non-zip64, even though in some cases this is possible */
    if ((pSource_zip->m_pState->m_zip64) && (!pZip->m_pState->m_zip64))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    /* Get pointer to the source central dir header and crack it */
    if (NULL == (pSrc_central_header = mz_zip_get_cdh(pSource_zip, src_file_index)))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_SIG_OFS) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    src_filename_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    src_comment_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_COMMENT_LEN_OFS);
    src_ext_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS);
    src_central_dir_following_data_size = src_filename_len + src_ext_len + src_comment_len;
 
    /* TODO: We don't support central dir's >= MZ_UINT32_MAX bytes right now (+32 fudge factor in case we need to add more extra data) */
    if ((pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + 32) >= MZ_UINT32_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
    num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
 
    if (!pState->m_zip64)
    {
        if (pZip->m_total_files == MZ_UINT16_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        /* TODO: Our zip64 support still has some 32-bit limits that may not be worth fixing. */
        if (pZip->m_total_files == MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
 
    if (!mz_zip_file_stat_internal(pSource_zip, src_file_index, pSrc_central_header, &src_file_stat, NULL))
        return MZ_FALSE;
 
    cur_src_file_ofs = src_file_stat.m_local_header_ofs;
    cur_dst_file_ofs = pZip->m_archive_size;
 
    /* Read the source archive's local dir header */
    if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
 
    if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
    cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
 
    /* Compute the total size we need to copy (filename+extra data+compressed data) */
    local_header_filename_size = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
    local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
    local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
    local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
    src_archive_bytes_remaining = local_header_filename_size + local_header_extra_len + src_file_stat.m_comp_size;
 
    /* Try to find a zip64 extended information field */
    if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX)))
    {
        mz_zip_array file_data_array;
        const mz_uint8 *pExtra_data;
        mz_uint32 extra_size_remaining = local_header_extra_len;
 
        mz_zip_array_init(&file_data_array, 1);
        if (!mz_zip_array_resize(pZip, &file_data_array, local_header_extra_len, MZ_FALSE))
        {
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, src_file_stat.m_local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_size, file_data_array.m_p, local_header_extra_len) != local_header_extra_len)
        {
            mz_zip_array_clear(pZip, &file_data_array);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
        }
 
        pExtra_data = (const mz_uint8 *)file_data_array.m_p;
 
        do
        {
            mz_uint32 field_id, field_data_size, field_total_size;
 
            if (extra_size_remaining < (sizeof(mz_uint16) * 2))
            {
                mz_zip_array_clear(pZip, &file_data_array);
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
            field_id = MZ_READ_LE16(pExtra_data);
            field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
            field_total_size = field_data_size + sizeof(mz_uint16) * 2;
 
            if (field_total_size > extra_size_remaining)
            {
                mz_zip_array_clear(pZip, &file_data_array);
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
            }
 
            if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
            {
                const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32);
 
                if (field_data_size < sizeof(mz_uint64) * 2)
                {
                    mz_zip_array_clear(pZip, &file_data_array);
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
                }
 
                local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
                local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64)); /* may be 0 if there's a descriptor */
 
                found_zip64_ext_data_in_ldir = MZ_TRUE;
                break;
            }
 
            pExtra_data += field_total_size;
            extra_size_remaining -= field_total_size;
        } while (extra_size_remaining);
 
        mz_zip_array_clear(pZip, &file_data_array);
    }
 
    if (!pState->m_zip64)
    {
        /* Try to detect if the new archive will most likely wind up too big and bail early (+(sizeof(mz_uint32) * 4) is for the optional descriptor which could be present, +64 is a fudge factor). */
        /* We also check when the archive is finalized so this doesn't need to be perfect. */
        mz_uint64 approx_new_archive_size = cur_dst_file_ofs + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + src_archive_bytes_remaining + (sizeof(mz_uint32) * 4) +
                                            pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 64;
 
        if (approx_new_archive_size >= MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
    }
 
    /* Write dest archive padding */
    if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, num_alignment_padding_bytes))
        return MZ_FALSE;
 
    cur_dst_file_ofs += num_alignment_padding_bytes;
 
    local_dir_header_ofs = cur_dst_file_ofs;
    if (pZip->m_file_offset_alignment)
    {
        MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
    }
 
    /* The original zip's local header+ext block doesn't change, even with zip64, so we can just copy it over to the dest zip */
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
    cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
 
    /* Copy over the source archive bytes to the dest archive, also ensure we have enough buf space to handle optional data descriptor */
    if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)MZ_MAX(32U, MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining)))))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    while (src_archive_bytes_remaining)
    {
        n = (mz_uint)MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining);
        if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, n) != n)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
        }
        cur_src_file_ofs += n;
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
        cur_dst_file_ofs += n;
 
        src_archive_bytes_remaining -= n;
    }
 
    /* Now deal with the optional data descriptor */
    bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
    if (bit_flags & 8)
    {
        /* Copy data descriptor */
        if ((pSource_zip->m_pState->m_zip64) || (found_zip64_ext_data_in_ldir))
        {
            /* src is zip64, dest must be zip64 */
 
            /* name     uint32_t's */
            /* id       1 (optional in zip64?) */
            /* crc      1 */
            /* comp_size  2 */
            /* uncomp_size 2 */
            if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, (sizeof(mz_uint32) * 6)) != (sizeof(mz_uint32) * 6))
            {
                pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            }
 
            n = sizeof(mz_uint32) * ((MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID) ? 6 : 5);
        }
        else
        {
            /* src is NOT zip64 */
            mz_bool has_id;
 
            if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4)
            {
                pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
            }
 
            has_id = (MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID);
 
            if (pZip->m_pState->m_zip64)
            {
                /* dest is zip64, so upgrade the data descriptor */
                const mz_uint32 *pSrc_descriptor = (const mz_uint32 *)((const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0));
                const mz_uint32 src_crc32 = pSrc_descriptor[0];
                const mz_uint64 src_comp_size = pSrc_descriptor[1];
                const mz_uint64 src_uncomp_size = pSrc_descriptor[2];
 
                mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID);
                mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32);
                mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 2, src_comp_size);
                mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 4, src_uncomp_size);
 
                n = sizeof(mz_uint32) * 6;
            }
            else
            {
                /* dest is NOT zip64, just copy it as-is */
                n = sizeof(mz_uint32) * (has_id ? 4 : 3);
            }
        }
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
 
        cur_src_file_ofs += n;
        cur_dst_file_ofs += n;
    }
    pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
 
    /* Finally, add the new central dir header */
    orig_central_dir_size = pState->m_central_dir.m_size;
 
    memcpy(new_central_header, pSrc_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
 
    if (pState->m_zip64)
    {
        /* This is the painful part: We need to write a new central dir header + ext block with updated zip64 fields, and ensure the old fields (if any) are not included. */
        const mz_uint8 *pSrc_ext = pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len;
        mz_zip_array new_ext_block;
 
        mz_zip_array_init(&new_ext_block, sizeof(mz_uint8));
 
        MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_UINT32_MAX);
        MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_UINT32_MAX);
        MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_UINT32_MAX);
 
        if (!mz_zip_writer_update_zip64_extension_block(&new_ext_block, pZip, pSrc_ext, src_ext_len, &src_file_stat.m_comp_size, &src_file_stat.m_uncomp_size, &local_dir_header_ofs, NULL))
        {
            mz_zip_array_clear(pZip, &new_ext_block);
            return MZ_FALSE;
        }
 
        MZ_WRITE_LE16(new_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS, new_ext_block.m_size);
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
        {
            mz_zip_array_clear(pZip, &new_ext_block);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_filename_len))
        {
            mz_zip_array_clear(pZip, &new_ext_block);
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_ext_block.m_p, new_ext_block.m_size))
        {
            mz_zip_array_clear(pZip, &new_ext_block);
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len + src_ext_len, src_comment_len))
        {
            mz_zip_array_clear(pZip, &new_ext_block);
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        mz_zip_array_clear(pZip, &new_ext_block);
    }
    else
    {
        /* sanity checks */
        if (cur_dst_file_ofs > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
        if (local_dir_header_ofs >= MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
        MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_dir_header_ofs);
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_central_dir_following_data_size))
        {
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
    }
 
    /* This shouldn't trigger unless we screwed up during the initial sanity checks */
    if (pState->m_central_dir.m_size >= MZ_UINT32_MAX)
    {
        /* TODO: Support central dirs >= 32-bits in size */
        mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
    }
 
    n = (mz_uint32)orig_central_dir_size;
    if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1))
    {
        mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
    }
 
    pZip->m_total_files++;
    pZip->m_archive_size = cur_dst_file_ofs;
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive_file_stat::m_comp_size, mz_zip_archive::m_file_offset_alignment, mz_zip_archive_file_stat::m_local_header_ofs, mz_zip_array::m_p, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_array::m_size, mz_zip_archive::m_total_files, mz_zip_archive_file_stat::m_uncomp_size, mz_zip_internal_state_tag::m_zip64, mz_zip_archive::m_zip_mode, MZ_ASSERT, MZ_FALSE, MZ_MAX, MZ_MIN, MZ_READ_LE16, MZ_READ_LE32, MZ_READ_LE64, MZ_TRUE, MZ_UINT16_MAX, MZ_UINT32_MAX, MZ_WRITE_LE16, mz_write_le32(), MZ_WRITE_LE32, mz_write_le64(), MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_ARCHIVE_TOO_LARGE, mz_zip_array_clear(), mz_zip_array_init(), mz_zip_array_push_back(), mz_zip_array_resize(), MZ_ZIP_CDH_COMMENT_LEN_OFS, MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_CDH_EXTRA_LEN_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_DATA_DESCRIPTOR_ID, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_READ_FAILED, mz_zip_file_stat_internal(), MZ_ZIP_FILE_WRITE_FAILED, mz_zip_get_cdh(), MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_LDH_BIT_FLAG_OFS, MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_LDH_EXTRA_LEN_OFS, MZ_ZIP_LDH_FILENAME_LEN_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG, MZ_ZIP_LOCAL_DIR_HEADER_SIZE, MZ_ZIP_MAX_IO_BUF_SIZE, MZ_ZIP_MODE_WRITING, mz_zip_set_error(), MZ_ZIP_TOO_MANY_FILES, MZ_ZIP_UNSUPPORTED_CDIR_SIZE, mz_zip_writer_compute_padding_needed_for_file_alignment(), mz_zip_writer_update_zip64_extension_block(), and mz_zip_writer_write_zeros().

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◆ mz_zip_writer_add_mem()

mz_bool mz_zip_writer_add_mem	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		const void *	pBuf,
		size_t	buf_size,
		mz_uint	level_and_flags
	)

{
    return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, level_and_flags, 0, 0);
}

References mz_zip_writer_add_mem_ex().

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◆ mz_zip_writer_add_mem_ex()

mz_bool mz_zip_writer_add_mem_ex	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		const void *	pBuf,
		size_t	buf_size,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		mz_uint64	uncomp_size,
		mz_uint32	uncomp_crc32
	)

{
    return mz_zip_writer_add_mem_ex_v2(pZip, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, uncomp_size, uncomp_crc32, NULL, NULL, 0, NULL, 0);
}

References mz_zip_writer_add_mem_ex_v2().

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), and mz_zip_writer_add_mem().

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◆ mz_zip_writer_add_mem_ex_v2()

mz_bool mz_zip_writer_add_mem_ex_v2	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		const void *	pBuf,
		size_t	buf_size,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		mz_uint64	uncomp_size,
		mz_uint32	uncomp_crc32,
		MZ_TIME_T *	last_modified,
		const char *	user_extra_data,
		mz_uint	user_extra_data_len,
		const char *	user_extra_data_central,
		mz_uint	user_extra_data_central_len
	)

{
    mz_uint16 method = 0, dos_time = 0, dos_date = 0;
    mz_uint level, ext_attributes = 0, num_alignment_padding_bytes;
    mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0;
    size_t archive_name_size;
    mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
    tdefl_compressor *pComp = NULL;
    mz_bool store_data_uncompressed;
    mz_zip_internal_state *pState;
    mz_uint8 *pExtra_data = NULL;
    mz_uint32 extra_size = 0;
    mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
    mz_uint16 bit_flags = 0;
 
    if ((int)level_and_flags < 0)
        level_and_flags = MZ_DEFAULT_LEVEL;
 
    if (uncomp_size || (buf_size && !(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
        bit_flags |= MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
 
    if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
        bit_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
 
    level = level_and_flags & 0xF;
    store_data_uncompressed = ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA));
 
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    if (pState->m_zip64)
    {
        if (pZip->m_total_files == MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        if (pZip->m_total_files == MZ_UINT16_MAX)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
        }
        if ((buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF))
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
        }
    }
 
    if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_writer_validate_archive_name(pArchive_name))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
#ifndef MINIZ_NO_TIME
    if (last_modified != NULL)
    {
        mz_zip_time_t_to_dos_time(*last_modified, &dos_time, &dos_date);
    }
    else
    {
        MZ_TIME_T cur_time;
        time(&cur_time);
        mz_zip_time_t_to_dos_time(cur_time, &dos_time, &dos_date);
    }
#endif /* #ifndef MINIZ_NO_TIME */
 
  if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
  {
    uncomp_crc32 = (mz_uint32)mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, buf_size);
    uncomp_size = buf_size;
    if (uncomp_size <= 3)
    {
      level = 0;
      store_data_uncompressed = MZ_TRUE;
    }
  }
 
    archive_name_size = strlen(pArchive_name);
    if (archive_name_size > MZ_UINT16_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
    num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
 
    /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
    if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
    if (!pState->m_zip64)
    {
        /* Bail early if the archive would obviously become too large */
        if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size 
      + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + user_extra_data_len + 
      pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + user_extra_data_central_len
      + MZ_ZIP_DATA_DESCRIPTER_SIZE32) > 0xFFFFFFFF)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
        }
    }
 
    if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/'))
    {
        /* Set DOS Subdirectory attribute bit. */
        ext_attributes |= MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG;
 
        /* Subdirectories cannot contain data. */
        if ((buf_size) || (uncomp_size))
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
    }
 
    /* Try to do any allocations before writing to the archive, so if an allocation fails the file remains unmodified. (A good idea if we're doing an in-place modification.) */
    if ((!mz_zip_array_ensure_room(pZip, &pState->m_central_dir, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + (pState->m_zip64 ? MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE : 0))) || (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1)))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    if ((!store_data_uncompressed) && (buf_size))
    {
        if (NULL == (pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor))))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
    }
 
    if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes))
    {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
        return MZ_FALSE;
    }
 
    local_dir_header_ofs += num_alignment_padding_bytes;
    if (pZip->m_file_offset_alignment)
    {
        MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
    }
    cur_archive_file_ofs += num_alignment_padding_bytes;
 
    MZ_CLEAR_OBJ(local_dir_header);
 
    if (!store_data_uncompressed || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
    {
        method = MZ_DEFLATED;
    }
 
    if (pState->m_zip64)
    {
        if (uncomp_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX)
        {
            pExtra_data = extra_data;
            extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
                                                               (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
        }
 
        if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, bit_flags, dos_time, dos_date))
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += sizeof(local_dir_header);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
        cur_archive_file_ofs += archive_name_size;
 
        if (pExtra_data != NULL)
        {
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size)
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
            cur_archive_file_ofs += extra_size;
        }
    }
    else
    {
        if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX))
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
        if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, bit_flags, dos_time, dos_date))
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += sizeof(local_dir_header);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
        cur_archive_file_ofs += archive_name_size;
    }
 
  if (user_extra_data_len > 0)
  {
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len)
      return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
    cur_archive_file_ofs += user_extra_data_len;
  }
 
    if (store_data_uncompressed)
    {
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, buf_size) != buf_size)
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
 
        cur_archive_file_ofs += buf_size;
        comp_size = buf_size;
    }
    else if (buf_size)
    {
        mz_zip_writer_add_state state;
 
        state.m_pZip = pZip;
        state.m_cur_archive_file_ofs = cur_archive_file_ofs;
        state.m_comp_size = 0;
 
        if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY) ||
            (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) != TDEFL_STATUS_DONE))
        {
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
            return mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
        }
 
        comp_size = state.m_comp_size;
        cur_archive_file_ofs = state.m_cur_archive_file_ofs;
    }
 
    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
    pComp = NULL;
 
    if (uncomp_size)
    {
        mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
        mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
 
        MZ_ASSERT(bit_flags & MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR);
 
        MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
        MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
        if (pExtra_data == NULL)
        {
            if (comp_size > MZ_UINT32_MAX)
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
            MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
            MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
        }
        else
        {
            MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
            MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
            local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
        }
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size)
            return MZ_FALSE;
 
        cur_archive_file_ofs += local_dir_footer_size;
    }
 
    if (pExtra_data != NULL)
    {
        extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
                                                           (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
    }
 
    if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment,
                                          comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes,
                                          user_extra_data_central, user_extra_data_central_len))
        return MZ_FALSE;
 
    pZip->m_total_files++;
    pZip->m_archive_size = cur_archive_file_ofs;
 
    return MZ_TRUE;
}

Referenced by mz_zip_writer_add_mem_ex().

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◆ mz_zip_writer_add_put_buf_callback()

static mz_bool mz_zip_writer_add_put_buf_callback	(	const void *	pBuf,
		int	len,
		void *	pUser
	)

static

{
    mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *)pUser;
    if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, pState->m_cur_archive_file_ofs, pBuf, len) != len)
        return MZ_FALSE;
 
    pState->m_cur_archive_file_ofs += len;
    pState->m_comp_size += len;
    return MZ_TRUE;
}

References mz_zip_writer_add_state::m_comp_size, mz_zip_writer_add_state::m_cur_archive_file_ofs, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pWrite, mz_zip_writer_add_state::m_pZip, MZ_FALSE, and MZ_TRUE.

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_writer_add_read_buf_callback()

mz_bool mz_zip_writer_add_read_buf_callback	(	mz_zip_archive *	pZip,
		const char *	pArchive_name,
		mz_file_read_func	read_callback,
		void *	callback_opaque,
		mz_uint64	max_size,
		const MZ_TIME_T *	pFile_time,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		const char *	user_extra_data,
		mz_uint	user_extra_data_len,
		const char *	user_extra_data_central,
		mz_uint	user_extra_data_central_len
	)

{
    mz_uint16 gen_flags = MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
    mz_uint uncomp_crc32 = MZ_CRC32_INIT, level, num_alignment_padding_bytes;
    mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0;
    mz_uint64 local_dir_header_ofs, cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, comp_size = 0;
    size_t archive_name_size;
    mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
    mz_uint8 *pExtra_data = NULL;
    mz_uint32 extra_size = 0;
    mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
    mz_zip_internal_state *pState;
  mz_uint64 file_ofs = 0;
 
    if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
        gen_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
 
    if ((int)level_and_flags < 0)
        level_and_flags = MZ_DEFAULT_LEVEL;
    level = level_and_flags & 0xF;
 
    /* Sanity checks */
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    if ((!pState->m_zip64) && (max_size > MZ_UINT32_MAX))
    {
        /* Source file is too large for non-zip64 */
        /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
        pState->m_zip64 = MZ_TRUE;
    }
 
    /* We could support this, but why? */
    if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_writer_validate_archive_name(pArchive_name))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
    if (pState->m_zip64)
    {
        if (pZip->m_total_files == MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        if (pZip->m_total_files == MZ_UINT16_MAX)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
        }
    }
 
    archive_name_size = strlen(pArchive_name);
    if (archive_name_size > MZ_UINT16_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
    num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
 
    /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
    if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
    if (!pState->m_zip64)
    {
        /* Bail early if the archive would obviously become too large */
        if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE
      + archive_name_size + comment_size + user_extra_data_len + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 1024
      + MZ_ZIP_DATA_DESCRIPTER_SIZE32 + user_extra_data_central_len) > 0xFFFFFFFF)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
        }
    }
 
#ifndef MINIZ_NO_TIME
    if (pFile_time)
    {
        mz_zip_time_t_to_dos_time(*pFile_time, &dos_time, &dos_date);
    }
#endif
 
    if (max_size <= 3)
        level = 0;
 
    if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes))
    {
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
    }
 
    cur_archive_file_ofs += num_alignment_padding_bytes;
    local_dir_header_ofs = cur_archive_file_ofs;
 
    if (pZip->m_file_offset_alignment)
    {
        MZ_ASSERT((cur_archive_file_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
    }
 
    if (max_size && level)
    {
        method = MZ_DEFLATED;
    }
 
    MZ_CLEAR_OBJ(local_dir_header);
    if (pState->m_zip64)
    {
        if (max_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX)
        {
            pExtra_data = extra_data;
            extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
                                                               (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
        }
 
        if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, gen_flags, dos_time, dos_date))
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += sizeof(local_dir_header);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
        {
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
 
        cur_archive_file_ofs += archive_name_size;
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += extra_size;
    }
    else
    {
        if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX))
            return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
        if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, gen_flags, dos_time, dos_date))
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += sizeof(local_dir_header);
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
        {
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
        }
 
        cur_archive_file_ofs += archive_name_size;
    }
 
    if (user_extra_data_len > 0)
    {
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_archive_file_ofs += user_extra_data_len;
    }
 
    if (max_size)
    {
        void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, MZ_ZIP_MAX_IO_BUF_SIZE);
        if (!pRead_buf)
        {
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
 
        if (!level)
        {
            while (1)
            {
                size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE);
                if (n == 0)
                    break;
 
                if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size))
                {
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
                }
                if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, n) != n)
                {
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
                }
                file_ofs += n;
                uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
                cur_archive_file_ofs += n;
            }
            uncomp_size = file_ofs;
            comp_size = uncomp_size;
        }
        else
        {
            mz_bool result = MZ_FALSE;
            mz_zip_writer_add_state state;
            tdefl_compressor *pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor));
            if (!pComp)
            {
                pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
            }
 
            state.m_pZip = pZip;
            state.m_cur_archive_file_ofs = cur_archive_file_ofs;
            state.m_comp_size = 0;
 
            if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY)
            {
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
                pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
            }
 
            for (;;)
            {
                tdefl_status status;
                tdefl_flush flush = TDEFL_NO_FLUSH;
 
                size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE);
                if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size))
                {
                    mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
                    break;
                }
 
                file_ofs += n;
                uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
 
                if (pZip->m_pNeeds_keepalive != NULL && pZip->m_pNeeds_keepalive(pZip->m_pIO_opaque))
                    flush = TDEFL_FULL_FLUSH;
 
                if (n == 0)
                    flush = TDEFL_FINISH;
 
                status = tdefl_compress_buffer(pComp, pRead_buf, n, flush);
                if (status == TDEFL_STATUS_DONE)
                {
                    result = MZ_TRUE;
                    break;
                }
                else if (status != TDEFL_STATUS_OKAY)
                {
                    mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
                    break;
                }
            }
 
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
 
            if (!result)
            {
                pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
                return MZ_FALSE;
            }
 
            uncomp_size = file_ofs;
            comp_size = state.m_comp_size;
            cur_archive_file_ofs = state.m_cur_archive_file_ofs;
        }
 
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
    }
 
    {
        mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
        mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
 
        MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
        MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
        if (pExtra_data == NULL)
        {
            if (comp_size > MZ_UINT32_MAX)
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
            MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
            MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
        }
        else
        {
            MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
            MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
            local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
        }
 
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size)
            return MZ_FALSE;
 
        cur_archive_file_ofs += local_dir_footer_size;
    }
 
    if (pExtra_data != NULL)
    {
        extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
                                                           (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
    }
 
    if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment, comment_size,
                                          uncomp_size, comp_size, uncomp_crc32, method, gen_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes,
                                          user_extra_data_central, user_extra_data_central_len))
        return MZ_FALSE;
 
    pZip->m_total_files++;
    pZip->m_archive_size = cur_archive_file_ofs;
 
    return MZ_TRUE;
}

Referenced by mz_zip_writer_add_cfile().

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◆ mz_zip_writer_add_staged_data()

mz_bool mz_zip_writer_add_staged_data	(	mz_zip_writer_staged_context *	pContext,
		const char *	pRead_buf,
		size_t	n
	)

{
    tdefl_flush  flush = TDEFL_NO_FLUSH;
 
    if (pContext->file_ofs + n > pContext->max_size)
    {
        mz_zip_set_error(pContext->pZip, MZ_ZIP_FILE_READ_FAILED);
        pContext->pZip->m_pFree(pContext->pZip->m_pAlloc_opaque, pContext->pCompressor);
        pContext->pCompressor = NULL;
        return MZ_FALSE;
    }
 
    pContext->file_ofs += n;
    pContext->uncomp_crc32 = (mz_uint32)mz_crc32(pContext->uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
 
    if (pContext->pZip->m_pNeeds_keepalive != NULL && pContext->pZip->m_pNeeds_keepalive(pContext->pZip->m_pIO_opaque))
        flush = TDEFL_FULL_FLUSH;
 
    {
        tdefl_status status = tdefl_compress_buffer(pContext->pCompressor, pRead_buf, n, (n == 0) ? TDEFL_FINISH : flush);
        if (status == TDEFL_STATUS_DONE || status == TDEFL_STATUS_OKAY)
            return MZ_TRUE;
    }
 
    mz_zip_set_error(pContext->pZip, MZ_ZIP_COMPRESSION_FAILED);
    pContext->pZip->m_pFree(pContext->pZip->m_pAlloc_opaque, pContext->pCompressor);
    pContext->pCompressor = NULL;
    return MZ_FALSE;
}

References mz_zip_writer_staged_context::file_ofs, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pNeeds_keepalive, mz_zip_writer_staged_context::max_size, mz_crc32(), MZ_FALSE, MZ_TRUE, MZ_ZIP_COMPRESSION_FAILED, MZ_ZIP_FILE_READ_FAILED, mz_zip_set_error(), mz_zip_writer_staged_context::pCompressor, mz_zip_writer_staged_context::pZip, tdefl_compress_buffer(), TDEFL_FINISH, TDEFL_FULL_FLUSH, TDEFL_NO_FLUSH, TDEFL_STATUS_DONE, TDEFL_STATUS_OKAY, and mz_zip_writer_staged_context::uncomp_crc32.

Referenced by Slic3r::_3MF_Exporter::_add_mesh_to_object_stream(), Slic3r::_3MF_Exporter::_add_model_file_to_archive(), Slic3r::_3MF_Exporter::_add_object_to_model_stream(), and mz_zip_writer_add_staged_finish().

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◆ mz_zip_writer_add_staged_finish()

mz_bool mz_zip_writer_add_staged_finish ( mz_zip_writer_staged_context * pContext )

{
    if (! mz_zip_writer_add_staged_data(pContext, NULL, 0) ||
        // Either never opened, or already finished.
        ! pContext->pCompressor)
        return MZ_FALSE;
 
    pContext->pZip->m_pFree(pContext->pZip->m_pAlloc_opaque, pContext->pCompressor);
    pContext->pCompressor = NULL;
 
    // Rewrite preallocated phony custom block in local dir header by ZIP64 extension. Also, other values are adjusted in the header.
    if (pContext->file_ofs >= MZ_UINT32_MAX || pContext->add_state.m_comp_size >= MZ_UINT32_MAX) {
        mz_uint64 local_dir_header_ofs = pContext->local_dir_header_ofs;
        pContext->pExtra_data = pContext->extra_data;
        pContext->extra_size = mz_zip_writer_create_zip64_extra_data(pContext->extra_data, &pContext->uncomp_size, &pContext->comp_size, (pContext->local_dir_header_ofs >= MZ_UINT32_MAX) ? &pContext->local_dir_header_ofs : NULL);
 
        mz_uint8 min_version[2]      = {0x2D, 0x00};
        mz_uint8 comp_uncomp_size[4] = {0xFF, 0xFF, 0xFF, 0xFF};
        if (pContext->pZip->m_pWrite(pContext->pZip->m_pIO_opaque, local_dir_header_ofs + MZ_ZIP_LDH_VERSION_NEEDED_OFS, min_version, sizeof(min_version)) != sizeof(min_version))
            return mz_zip_set_error(pContext->pZip, MZ_ZIP_FILE_WRITE_FAILED);
        if (pContext->pZip->m_pWrite(pContext->pZip->m_pIO_opaque, local_dir_header_ofs + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, comp_uncomp_size, sizeof(comp_uncomp_size)) != sizeof(comp_uncomp_size))
            return mz_zip_set_error(pContext->pZip, MZ_ZIP_FILE_WRITE_FAILED);
        if (pContext->pZip->m_pWrite(pContext->pZip->m_pIO_opaque, local_dir_header_ofs + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, comp_uncomp_size, sizeof(comp_uncomp_size)) != sizeof(comp_uncomp_size))
            return mz_zip_set_error(pContext->pZip, MZ_ZIP_FILE_WRITE_FAILED);
        if (pContext->pZip->m_pWrite(pContext->pZip->m_pIO_opaque, local_dir_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + pContext->archive_name_size, pContext->extra_data, pContext->extra_size) != pContext->extra_size)
            return mz_zip_set_error(pContext->pZip, MZ_ZIP_FILE_WRITE_FAILED);
    }
 
    pContext->uncomp_size = pContext->file_ofs;
    pContext->comp_size = pContext->add_state.m_comp_size;
    pContext->cur_archive_file_ofs = pContext->add_state.m_cur_archive_file_ofs;
 
    // Clean pContext->pExtra_data, pContext->extra_data and pContext->extra_size after calling mz_zip_writer_add_staged_open
    pContext->pExtra_data = NULL;
    pContext->extra_size = 0;
    memset(pContext->extra_data, 0, sizeof(mz_uint8) * MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE);
 
    {
        mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
        mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
 
        MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
        MZ_WRITE_LE32(local_dir_footer + 4, pContext->uncomp_crc32);
        if (pContext->uncomp_size < MZ_UINT32_MAX && pContext->comp_size < MZ_UINT32_MAX)
        {
            if (pContext->comp_size > MZ_UINT32_MAX)
                return mz_zip_set_error(pContext->pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
 
            MZ_WRITE_LE32(local_dir_footer + 8, pContext->comp_size);
            MZ_WRITE_LE32(local_dir_footer + 12, pContext->uncomp_size);
        }
        else
        {
            MZ_WRITE_LE64(local_dir_footer + 8, pContext->comp_size);
            MZ_WRITE_LE64(local_dir_footer + 16, pContext->uncomp_size);
            local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
        }
 
        if (pContext->pZip->m_pWrite(pContext->pZip->m_pIO_opaque, pContext->cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size)
            return MZ_FALSE;
 
        pContext->cur_archive_file_ofs += local_dir_footer_size;
    }
 
    if (pContext->file_ofs >= MZ_UINT32_MAX || pContext->add_state.m_comp_size >= MZ_UINT32_MAX)
    {
        pContext->pExtra_data = pContext->extra_data;
        pContext->extra_size = mz_zip_writer_create_zip64_extra_data(pContext->extra_data, (pContext->uncomp_size >= MZ_UINT32_MAX) ? &pContext->uncomp_size : NULL,
                                                           (pContext->comp_size >= MZ_UINT32_MAX) ? &pContext->comp_size : NULL, (pContext->local_dir_header_ofs >= MZ_UINT32_MAX) ? &pContext->local_dir_header_ofs : NULL);
    }
 
    if (!mz_zip_writer_add_to_central_dir(pContext->pZip, pContext->pArchive_name, (mz_uint16)pContext->archive_name_size, pContext->pExtra_data, (mz_uint16)pContext->extra_size, pContext->pComment, pContext->comment_size,
                                          pContext->uncomp_size, pContext->comp_size, pContext->uncomp_crc32, pContext->method, pContext->gen_flags, pContext->dos_time, pContext->dos_date, pContext->local_dir_header_ofs, pContext->ext_attributes,
                                          pContext->user_extra_data_central, pContext->user_extra_data_central_len))
        return MZ_FALSE;
 
    pContext->pZip->m_total_files++;
    pContext->pZip->m_archive_size = pContext->cur_archive_file_ofs;
 
    return MZ_TRUE;
}

Referenced by Slic3r::_3MF_Exporter::_add_model_file_to_archive().

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◆ mz_zip_writer_add_staged_open()

mz_bool mz_zip_writer_add_staged_open	(	mz_zip_archive *	pZip,
		mz_zip_writer_staged_context *	pContext,
		const char *	pArchive_name,
		mz_uint64	max_size,
		const MZ_TIME_T *	pFile_time,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint	level_and_flags,
		const char *	user_extra_data,
		mz_uint	user_extra_data_len,
		const char *	user_extra_data_central,
		mz_uint	user_extra_data_central_len
	)

{
    mz_uint level, num_alignment_padding_bytes;
    mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
    mz_zip_internal_state* pState;
 
    memset(pContext, 0, sizeof(mz_zip_writer_staged_context));
    pContext->pZip = pZip;
    pContext->gen_flags = MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
    pContext->uncomp_crc32 = MZ_CRC32_INIT;
    pContext->method = MZ_DEFLATED;
    pContext->cur_archive_file_ofs = pZip->m_archive_size;
    pContext->max_size = max_size;
    pContext->pArchive_name = pArchive_name;
    pContext->pComment = pComment;
    pContext->comment_size = comment_size;
    pContext->user_extra_data_central = user_extra_data_central;
    pContext->user_extra_data_central_len = user_extra_data_central_len;
 
    if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
        pContext->gen_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
 
    if ((int)level_and_flags < 0)
        level_and_flags = MZ_DEFAULT_LEVEL;
    level = level_and_flags & 0xF;
 
    /* Sanity checks */
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level == 0) || (level > MZ_UBER_COMPRESSION) || (max_size < 4))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    /* We could support this, but why? */
    if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_writer_validate_archive_name(pArchive_name))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
    if (pState->m_zip64)
    {
        if (pZip->m_total_files == MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        if (pZip->m_total_files == MZ_UINT16_MAX)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
        }
    }
 
    pContext->archive_name_size = strlen(pArchive_name);
    if (pContext->archive_name_size > MZ_UINT16_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
 
    num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
 
    /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
    if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + pContext->archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
    if (!pState->m_zip64)
    {
        /* Bail early if the archive would obviously become too large */
        if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + pContext->archive_name_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE
            + pContext->archive_name_size + comment_size + user_extra_data_len + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 1024
            + MZ_ZIP_DATA_DESCRIPTER_SIZE32 + user_extra_data_central_len) > 0xFFFFFFFF)
        {
            pState->m_zip64 = MZ_TRUE;
            /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
        }
    }
 
#ifndef MINIZ_NO_TIME
    if (pFile_time)
    {
        mz_zip_time_t_to_dos_time(*pFile_time, &pContext->dos_time, &pContext->dos_date);
    }
    else
    {
        MZ_TIME_T cur_time;
        time(&cur_time);
        mz_zip_time_t_to_dos_time(cur_time, &pContext->dos_time, &pContext->dos_date);
    }
#endif
 
    if (!mz_zip_writer_write_zeros(pZip, pContext->cur_archive_file_ofs, num_alignment_padding_bytes))
    {
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
    }
 
    pContext->cur_archive_file_ofs += num_alignment_padding_bytes;
    pContext->local_dir_header_ofs = pContext->cur_archive_file_ofs;
 
    if (pZip->m_file_offset_alignment)
    {
        MZ_ASSERT((pContext->cur_archive_file_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
    }
 
    if (!pState->m_zip64 && (pContext->local_dir_header_ofs >= MZ_UINT32_MAX)) {
        pState->m_zip64 = MZ_TRUE;
        /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
    }
 
    MZ_CLEAR_OBJ(local_dir_header);
    if (max_size > MZ_UINT32_MAX)
    {
        pContext->pExtra_data = pContext->extra_data;
        pContext->extra_size  = mz_zip_writer_preallocate_extra_data(pContext->extra_data, 2 * sizeof(mz_uint64));
    }
 
    if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)pContext->archive_name_size, (mz_uint16)(pContext->extra_size + user_extra_data_len), 0, 0, 0, pContext->method, pContext->gen_flags, pContext->dos_time, pContext->dos_date))
        return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
    if (pZip->m_pWrite(pZip->m_pIO_opaque, pContext->cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
    pContext->cur_archive_file_ofs += sizeof(local_dir_header);
 
    if (pZip->m_pWrite(pZip->m_pIO_opaque, pContext->cur_archive_file_ofs, pArchive_name, pContext->archive_name_size) != pContext->archive_name_size)
    {
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
    }
 
    pContext->cur_archive_file_ofs += pContext->archive_name_size;
 
    if (pState->m_zip64 || max_size >= MZ_UINT32_MAX) {
        if (pZip->m_pWrite(pZip->m_pIO_opaque, pContext->cur_archive_file_ofs, pContext->extra_data, pContext->extra_size) != pContext->extra_size)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        pContext->cur_archive_file_ofs += pContext->extra_size;
    }
 
    if (user_extra_data_len > 0)
    {
        if (pZip->m_pWrite(pZip->m_pIO_opaque, pContext->cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        pContext->cur_archive_file_ofs += user_extra_data_len;
    }
 
    assert(max_size);
    assert(level);
 
    pContext->pCompressor = (tdefl_compressor*)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor));
    if (!pContext->pCompressor)
    {
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
    }
 
    pContext->add_state.m_pZip = pZip;
    pContext->add_state.m_cur_archive_file_ofs = pContext->cur_archive_file_ofs;
    pContext->add_state.m_comp_size = 0;
 
    if (tdefl_init(pContext->pCompressor, mz_zip_writer_add_put_buf_callback, &pContext->add_state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY)
    {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pContext->pCompressor);
        return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
    }
 
    return MZ_TRUE;
}

Referenced by Slic3r::_3MF_Exporter::_add_model_file_to_archive().

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◆ mz_zip_writer_add_to_central_dir()

static mz_bool mz_zip_writer_add_to_central_dir	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint16	filename_size,
		const void *	pExtra,
		mz_uint16	extra_size,
		const void *	pComment,
		mz_uint16	comment_size,
		mz_uint64	uncomp_size,
		mz_uint64	comp_size,
		mz_uint32	uncomp_crc32,
		mz_uint16	method,
		mz_uint16	bit_flags,
		mz_uint16	dos_time,
		mz_uint16	dos_date,
		mz_uint64	local_header_ofs,
		mz_uint32	ext_attributes,
		const char *	user_extra_data,
		mz_uint	user_extra_data_len
	)

static

{
    mz_zip_internal_state *pState = pZip->m_pState;
    mz_uint32 central_dir_ofs = (mz_uint32)pState->m_central_dir.m_size;
    size_t orig_central_dir_size = pState->m_central_dir.m_size;
    mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
 
    if (!pZip->m_pState->m_zip64)
    {
        if (local_header_ofs > 0xFFFFFFFF)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
    }
 
    /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
    if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + user_extra_data_len + comment_size) >= MZ_UINT32_MAX)
        return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
 
    if (!mz_zip_writer_create_central_dir_header(pZip, central_dir_header, filename_size, (mz_uint16)(extra_size + user_extra_data_len), comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_header_ofs, ext_attributes))
        return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
 
    if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) ||
        (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, filename_size)) ||
        (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, extra_size)) ||
        (!mz_zip_array_push_back(pZip, &pState->m_central_dir, user_extra_data, user_extra_data_len)) ||
        (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, comment_size)) ||
        (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &central_dir_ofs, 1)))
    {
        /* Try to resize the central directory array back into its original state. */
        mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
    }
 
    return MZ_TRUE;
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_pState, mz_zip_array::m_size, mz_zip_internal_state_tag::m_zip64, MZ_FALSE, MZ_TRUE, MZ_UINT32_MAX, MZ_ZIP_ALLOC_FAILED, mz_zip_array_push_back(), mz_zip_array_resize(), MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_TOO_LARGE, MZ_ZIP_INTERNAL_ERROR, mz_zip_set_error(), MZ_ZIP_UNSUPPORTED_CDIR_SIZE, and mz_zip_writer_create_central_dir_header().

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_finish().

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◆ mz_zip_writer_compute_padding_needed_for_file_alignment()

static mz_uint mz_zip_writer_compute_padding_needed_for_file_alignment ( mz_zip_archive * pZip )

static

{
    mz_uint32 n;
    if (!pZip->m_file_offset_alignment)
        return 0;
    n = (mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1));
    return (mz_uint)((pZip->m_file_offset_alignment - n) & (pZip->m_file_offset_alignment - 1));
}

References mz_zip_archive::m_archive_size, and mz_zip_archive::m_file_offset_alignment.

Referenced by mz_zip_writer_add_from_zip_reader(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_writer_create_central_dir_header()

static mz_bool mz_zip_writer_create_central_dir_header	(	mz_zip_archive *	pZip,
		mz_uint8 *	pDst,
		mz_uint16	filename_size,
		mz_uint16	extra_size,
		mz_uint16	comment_size,
		mz_uint64	uncomp_size,
		mz_uint64	comp_size,
		mz_uint32	uncomp_crc32,
		mz_uint16	method,
		mz_uint16	bit_flags,
		mz_uint16	dos_time,
		mz_uint16	dos_date,
		mz_uint64	local_header_ofs,
		mz_uint32	ext_attributes
	)

static

{
    (void)pZip;
    mz_bool is_zip64_needed = uncomp_size >= MZ_UINT32_MAX || comp_size >= MZ_UINT32_MAX;
    memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_MADE_BY_OFS, is_zip64_needed ? 0x002D : (method ? 0x0014 : 0x0000));
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS, is_zip64_needed ? 0x002D : (method ? 0x0014 : 0x0000));
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date);
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32);
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_MIN(comp_size, MZ_UINT32_MAX));
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_MIN(uncomp_size, MZ_UINT32_MAX));
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size);
    MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size);
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes);
    MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_MIN(local_header_ofs, MZ_UINT32_MAX));
    return MZ_TRUE;
}

References MZ_MIN, MZ_TRUE, MZ_UINT32_MAX, MZ_WRITE_LE16, MZ_WRITE_LE32, MZ_ZIP_CDH_BIT_FLAG_OFS, MZ_ZIP_CDH_COMMENT_LEN_OFS, MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_ZIP_CDH_CRC32_OFS, MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, MZ_ZIP_CDH_EXTRA_LEN_OFS, MZ_ZIP_CDH_FILE_DATE_OFS, MZ_ZIP_CDH_FILE_TIME_OFS, MZ_ZIP_CDH_FILENAME_LEN_OFS, MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_ZIP_CDH_METHOD_OFS, MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CDH_VERSION_MADE_BY_OFS, MZ_ZIP_CDH_VERSION_NEEDED_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, and void().

Referenced by mz_zip_writer_add_to_central_dir().

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◆ mz_zip_writer_create_local_dir_header()

static mz_bool mz_zip_writer_create_local_dir_header	(	mz_zip_archive *	pZip,
		mz_uint8 *	pDst,
		mz_uint16	filename_size,
		mz_uint16	extra_size,
		mz_uint64	uncomp_size,
		mz_uint64	comp_size,
		mz_uint32	uncomp_crc32,
		mz_uint16	method,
		mz_uint16	bit_flags,
		mz_uint16	dos_time,
		mz_uint16	dos_date
	)

static

{
    (void)pZip;
    mz_bool is_zip64_needed = uncomp_size >= MZ_UINT32_MAX || comp_size >= MZ_UINT32_MAX;
    memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE);
    MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS, is_zip64_needed ? 0x002D : (method ? 0x0014 : 0x0000));
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date);
    MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32);
    MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, is_zip64_needed ? MZ_UINT32_MAX : comp_size);
    MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, is_zip64_needed ? MZ_UINT32_MAX : uncomp_size);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size);
    MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size);
    return MZ_TRUE;
}

References MZ_TRUE, MZ_UINT32_MAX, MZ_WRITE_LE16, MZ_WRITE_LE32, MZ_ZIP_LDH_BIT_FLAG_OFS, MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, MZ_ZIP_LDH_CRC32_OFS, MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, MZ_ZIP_LDH_EXTRA_LEN_OFS, MZ_ZIP_LDH_FILE_DATE_OFS, MZ_ZIP_LDH_FILE_TIME_OFS, MZ_ZIP_LDH_FILENAME_LEN_OFS, MZ_ZIP_LDH_METHOD_OFS, MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LDH_VERSION_NEEDED_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG, MZ_ZIP_LOCAL_DIR_HEADER_SIZE, and void().

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_writer_create_zip64_extra_data()

static mz_uint32 mz_zip_writer_create_zip64_extra_data	(	mz_uint8 *	pBuf,
		mz_uint64 *	pUncomp_size,
		mz_uint64 *	pComp_size,
		mz_uint64 *	pLocal_header_ofs
	)

static

{
    mz_uint8 *pDst = pBuf;
    mz_uint32 field_size = 0;
 
    MZ_WRITE_LE16(pDst + 0, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
    MZ_WRITE_LE16(pDst + 2, 0);
    pDst += sizeof(mz_uint16) * 2;
 
    if (pUncomp_size)
    {
        MZ_WRITE_LE64(pDst, *pUncomp_size);
        pDst += sizeof(mz_uint64);
        field_size += sizeof(mz_uint64);
    }
 
    if (pComp_size)
    {
        MZ_WRITE_LE64(pDst, *pComp_size);
        pDst += sizeof(mz_uint64);
        field_size += sizeof(mz_uint64);
    }
 
    if (pLocal_header_ofs)
    {
        MZ_WRITE_LE64(pDst, *pLocal_header_ofs);
        pDst += sizeof(mz_uint64);
        field_size += sizeof(mz_uint64);
    }
 
    MZ_WRITE_LE16(pBuf + 2, field_size);
 
    return (mz_uint32)(pDst - pBuf);
}

References MZ_WRITE_LE16, MZ_WRITE_LE64, and MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID.

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_finish().

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◆ mz_zip_writer_end()

mz_bool mz_zip_writer_end ( mz_zip_archive * pZip )

{
    return mz_zip_writer_end_internal(pZip, MZ_TRUE);
}

References MZ_TRUE, and mz_zip_writer_end_internal().

Referenced by Slic3r::anonymous_namespace{miniz_extension.cpp}::close_zip(), mz_zip_end(), and mz_zip_writer_init_file_v2().

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◆ mz_zip_writer_end_internal()

static mz_bool mz_zip_writer_end_internal	(	mz_zip_archive *	pZip,
		mz_bool	set_last_error
	)

static

{
    mz_zip_internal_state *pState;
    mz_bool status = MZ_TRUE;
 
    if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) && (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)))
    {
        if (set_last_error)
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
        return MZ_FALSE;
    }
 
    pState = pZip->m_pState;
    pZip->m_pState = NULL;
    mz_zip_array_clear(pZip, &pState->m_central_dir);
    mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
    mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
 
#ifndef MINIZ_NO_STDIO
    if (pState->m_pFile)
    {
        if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE)
        {
            if (MZ_FCLOSE(pState->m_pFile) == EOF)
            {
                if (set_last_error)
                    mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
                status = MZ_FALSE;
            }
        }
 
        pState->m_pFile = NULL;
    }
#endif /* #ifndef MINIZ_NO_STDIO */
 
    if ((pZip->m_pWrite == mz_zip_heap_write_func) && (pState->m_pMem))
    {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem);
        pState->m_pMem = NULL;
    }
 
    pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
    pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
    return status;
}

References mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pFree, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_zip_mode, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_FCLOSE, MZ_TRUE, mz_zip_array_clear(), MZ_ZIP_FILE_CLOSE_FAILED, mz_zip_heap_write_func(), MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_MODE_INVALID, MZ_ZIP_MODE_WRITING, MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED, mz_zip_set_error(), and MZ_ZIP_TYPE_FILE.

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_writer_end(), and mz_zip_writer_init_heap_v2().

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◆ mz_zip_writer_finalize_archive()

mz_bool mz_zip_writer_finalize_archive ( mz_zip_archive * pZip )

{
    mz_zip_internal_state *pState;
    mz_uint64 central_dir_ofs, central_dir_size;
    mz_uint8 hdr[256];
 
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    pState = pZip->m_pState;
 
    if (pState->m_zip64)
    {
        if ((pZip->m_total_files > MZ_UINT32_MAX) || (pState->m_central_dir.m_size >= MZ_UINT32_MAX))
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        if ((pZip->m_total_files > MZ_UINT16_MAX) || ((pZip->m_archive_size + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX))
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
 
    central_dir_ofs = 0;
    central_dir_size = 0;
    if (pZip->m_total_files)
    {
        /* Write central directory */
        central_dir_ofs = pZip->m_archive_size;
        central_dir_size = pState->m_central_dir.m_size;
        pZip->m_central_directory_file_ofs = central_dir_ofs;
        if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, pState->m_central_dir.m_p, (size_t)central_dir_size) != central_dir_size)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        pZip->m_archive_size += central_dir_size;
    }
 
    if (pState->m_zip64)
    {
        /* Write zip64 end of central directory header */
        mz_uint64 rel_ofs_to_zip64_ecdr = pZip->m_archive_size;
 
        MZ_CLEAR_OBJ(hdr);
        MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDH_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - sizeof(mz_uint32) - sizeof(mz_uint64));
        MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS, 0x031E); /* TODO: always Unix */
        MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_NEEDED_OFS, 0x002D);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, pZip->m_total_files);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_SIZE_OFS, central_dir_size);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_OFS_OFS, central_dir_ofs);
        if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE;
 
        /* Write zip64 end of central directory locator */
        MZ_CLEAR_OBJ(hdr);
        MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG);
        MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS, rel_ofs_to_zip64_ecdr);
        MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, 1);
        if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE;
    }
 
    /* Write end of central directory record */
    MZ_CLEAR_OBJ(hdr);
    MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG);
    MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
    MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
    MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_size));
    MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_ofs));
 
    if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
#ifndef MINIZ_NO_STDIO
    if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF))
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
#endif /* #ifndef MINIZ_NO_STDIO */
 
    pZip->m_archive_size += MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE;
 
    pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED;
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_central_dir, mz_zip_archive::m_central_directory_file_ofs, mz_zip_array::m_p, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_array::m_size, mz_zip_archive::m_total_files, mz_zip_internal_state_tag::m_zip64, mz_zip_archive::m_zip_mode, MZ_CLEAR_OBJ, MZ_FFLUSH, MZ_MIN, MZ_TRUE, MZ_UINT16_MAX, MZ_UINT32_MAX, MZ_WRITE_LE16, MZ_WRITE_LE32, MZ_WRITE_LE64, MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_ZIP64_ECDH_CDIR_OFS_OFS, MZ_ZIP64_ECDH_CDIR_SIZE_OFS, MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_ZIP64_ECDH_SIG_OFS, MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS, MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS, MZ_ZIP64_ECDH_VERSION_NEEDED_OFS, MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS, MZ_ZIP64_ECDL_SIG_OFS, MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE, MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_ZIP_ECDH_CDIR_OFS_OFS, MZ_ZIP_ECDH_CDIR_SIZE_OFS, MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, MZ_ZIP_FILE_CLOSE_FAILED, MZ_ZIP_FILE_WRITE_FAILED, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_MODE_WRITING, MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED, mz_zip_set_error(), and MZ_ZIP_TOO_MANY_FILES.

Referenced by Slic3r::Zipper::~Zipper(), Slic3r::_3MF_Exporter::_save_model_to_file(), Slic3r::Zipper::finalize(), mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_writer_finalize_heap_archive(), and Slic3r::store_amf().

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◆ mz_zip_writer_finalize_heap_archive()

mz_bool mz_zip_writer_finalize_heap_archive	(	mz_zip_archive *	pZip,
		void **	ppBuf,
		size_t *	pSize
	)

{
    if ((!ppBuf) || (!pSize))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    *ppBuf = NULL;
    *pSize = 0;
 
    if ((!pZip) || (!pZip->m_pState))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (pZip->m_pWrite != mz_zip_heap_write_func)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (!mz_zip_writer_finalize_archive(pZip))
        return MZ_FALSE;
 
    *ppBuf = pZip->m_pState->m_pMem;
    *pSize = pZip->m_pState->m_mem_size;
    pZip->m_pState->m_pMem = NULL;
    pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0;
 
    return MZ_TRUE;
}

References mz_zip_internal_state_tag::m_mem_capacity, mz_zip_internal_state_tag::m_mem_size, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, MZ_FALSE, MZ_TRUE, mz_zip_heap_write_func(), MZ_ZIP_INVALID_PARAMETER, mz_zip_set_error(), and mz_zip_writer_finalize_archive().

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◆ mz_zip_writer_init()

mz_bool mz_zip_writer_init	(	mz_zip_archive *	pZip,
		mz_uint64	existing_size
	)

{
    return mz_zip_writer_init_v2(pZip, existing_size, 0);
}

References mz_zip_writer_init_v2().

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◆ mz_zip_writer_init_cfile()

mz_bool mz_zip_writer_init_cfile	(	mz_zip_archive *	pZip,
		MZ_FILE *	pFile,
		mz_uint	flags
	)

{
    pZip->m_pWrite = mz_zip_file_write_func;
    pZip->m_pNeeds_keepalive = NULL;
 
    if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
        pZip->m_pRead = mz_zip_file_read_func;
 
    pZip->m_pIO_opaque = pZip;
 
    if (!mz_zip_writer_init_v2(pZip, 0, flags))
        return MZ_FALSE;
 
    pZip->m_pState->m_pFile = pFile;
    pZip->m_pState->m_file_archive_start_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
    pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
 
    return MZ_TRUE;
}

References mz_zip_internal_state_tag::m_file_archive_start_ofs, mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pNeeds_keepalive, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_FTELL64, MZ_TRUE, mz_zip_file_read_func(), mz_zip_file_write_func(), MZ_ZIP_FLAG_WRITE_ALLOW_READING, MZ_ZIP_TYPE_CFILE, and mz_zip_writer_init_v2().

Referenced by Slic3r::anonymous_namespace{miniz_extension.cpp}::open_zip().

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◆ mz_zip_writer_init_file()

mz_bool mz_zip_writer_init_file	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint64	size_to_reserve_at_beginning
	)

{
    return mz_zip_writer_init_file_v2(pZip, pFilename, size_to_reserve_at_beginning, 0);
}

References mz_zip_writer_init_file_v2().

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◆ mz_zip_writer_init_file_v2()

mz_bool mz_zip_writer_init_file_v2	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint64	size_to_reserve_at_beginning,
		mz_uint	flags
	)

{
    MZ_FILE *pFile;
 
    pZip->m_pWrite = mz_zip_file_write_func;
    pZip->m_pNeeds_keepalive = NULL;
 
    if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
        pZip->m_pRead = mz_zip_file_read_func;
 
    pZip->m_pIO_opaque = pZip;
 
    if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags))
        return MZ_FALSE;
 
    if (NULL == (pFile = MZ_FOPEN(pFilename, (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) ? "w+b" : "wb")))
    {
        mz_zip_writer_end(pZip);
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
    }
 
    pZip->m_pState->m_pFile = pFile;
    pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
 
    if (size_to_reserve_at_beginning)
    {
        mz_uint64 cur_ofs = 0;
        char buf[4096];
 
        MZ_CLEAR_OBJ(buf);
 
        do
        {
            size_t n = (size_t)MZ_MIN(sizeof(buf), size_to_reserve_at_beginning);
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n)
            {
                mz_zip_writer_end(pZip);
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
            }
            cur_ofs += n;
            size_to_reserve_at_beginning -= n;
        } while (size_to_reserve_at_beginning);
    }
 
    return MZ_TRUE;
}

References mz_zip_internal_state_tag::m_pFile, mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pNeeds_keepalive, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_archive::m_zip_type, MZ_CLEAR_OBJ, MZ_FALSE, MZ_FILE, MZ_FOPEN, MZ_MIN, MZ_TRUE, MZ_ZIP_FILE_OPEN_FAILED, mz_zip_file_read_func(), MZ_ZIP_FILE_WRITE_FAILED, mz_zip_file_write_func(), MZ_ZIP_FLAG_WRITE_ALLOW_READING, mz_zip_set_error(), MZ_ZIP_TYPE_FILE, mz_zip_writer_end(), and mz_zip_writer_init_v2().

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), and mz_zip_writer_init_file().

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◆ mz_zip_writer_init_from_reader()

mz_bool mz_zip_writer_init_from_reader	(	mz_zip_archive *	pZip,
		const char *	pFilename
	)

{
    return mz_zip_writer_init_from_reader_v2(pZip, pFilename, 0);
}

References mz_zip_writer_init_from_reader_v2().

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◆ mz_zip_writer_init_from_reader_v2()

mz_bool mz_zip_writer_init_from_reader_v2	(	mz_zip_archive *	pZip,
		const char *	pFilename,
		mz_uint	flags
	)

{
    mz_zip_internal_state *pState;
 
    if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (flags & MZ_ZIP_FLAG_WRITE_ZIP64)
    {
        /* We don't support converting a non-zip64 file to zip64 - this seems like more trouble than it's worth. (What about the existing 32-bit data descriptors that could follow the compressed data?) */
        if (!pZip->m_pState->m_zip64)
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
    }
 
    /* No sense in trying to write to an archive that's already at the support max size */
    if (pZip->m_pState->m_zip64)
    {
        if (pZip->m_total_files == MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
    }
    else
    {
        if (pZip->m_total_files == MZ_UINT16_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
 
        if ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
    }
 
    pState = pZip->m_pState;
 
    if (pState->m_pFile)
    {
#ifdef MINIZ_NO_STDIO
        (void)pFilename;
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
#else
        if (pZip->m_pIO_opaque != pZip)
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
        if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE)
        {
            if (!pFilename)
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
            /* Archive is being read from stdio and was originally opened only for reading. Try to reopen as writable. */
            if (NULL == (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b", pState->m_pFile)))
            {
                /* The mz_zip_archive is now in a bogus state because pState->m_pFile is NULL, so just close it. */
                mz_zip_reader_end_internal(pZip, MZ_FALSE);
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
            }
        }
 
        pZip->m_pWrite = mz_zip_file_write_func;
        pZip->m_pNeeds_keepalive = NULL;
#endif /* #ifdef MINIZ_NO_STDIO */
    }
    else if (pState->m_pMem)
    {
        /* Archive lives in a memory block. Assume it's from the heap that we can resize using the realloc callback. */
        if (pZip->m_pIO_opaque != pZip)
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
        pState->m_mem_capacity = pState->m_mem_size;
        pZip->m_pWrite = mz_zip_heap_write_func;
        pZip->m_pNeeds_keepalive = NULL;
    }
    /* Archive is being read via a user provided read function - make sure the user has specified a write function too. */
    else if (!pZip->m_pWrite)
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    /* Start writing new files at the archive's current central directory location. */
    /* TODO: We could add a flag that lets the user start writing immediately AFTER the existing central dir - this would be safer. */
    pZip->m_archive_size = pZip->m_central_directory_file_ofs;
    pZip->m_central_directory_file_ofs = 0;
 
    /* Clear the sorted central dir offsets, they aren't useful or maintained now. */
    /* Even though we're now in write mode, files can still be extracted and verified, but file locates will be slow. */
    /* TODO: We could easily maintain the sorted central directory offsets. */
    mz_zip_array_clear(pZip, &pZip->m_pState->m_sorted_central_dir_offsets);
 
    pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
 
    return MZ_TRUE;
}

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), and mz_zip_writer_init_from_reader().

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◆ mz_zip_writer_init_heap()

mz_bool mz_zip_writer_init_heap	(	mz_zip_archive *	pZip,
		size_t	size_to_reserve_at_beginning,
		size_t	initial_allocation_size
	)

{
    return mz_zip_writer_init_heap_v2(pZip, size_to_reserve_at_beginning, initial_allocation_size, 0);
}

References mz_zip_writer_init_heap_v2().

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◆ mz_zip_writer_init_heap_v2()

mz_bool mz_zip_writer_init_heap_v2	(	mz_zip_archive *	pZip,
		size_t	size_to_reserve_at_beginning,
		size_t	initial_allocation_size,
		mz_uint	flags
	)

{
    pZip->m_pWrite = mz_zip_heap_write_func;
    pZip->m_pNeeds_keepalive = NULL;
 
    if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
        pZip->m_pRead = mz_zip_mem_read_func;
 
    pZip->m_pIO_opaque = pZip;
 
    if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags))
        return MZ_FALSE;
 
    pZip->m_zip_type = MZ_ZIP_TYPE_HEAP;
 
    if (0 != (initial_allocation_size = MZ_MAX(initial_allocation_size, size_to_reserve_at_beginning)))
    {
        if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, initial_allocation_size)))
        {
            mz_zip_writer_end_internal(pZip, MZ_FALSE);
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
        }
        pZip->m_pState->m_mem_capacity = initial_allocation_size;
    }
 
    return MZ_TRUE;
}

References mz_zip_internal_state_tag::m_mem_capacity, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pIO_opaque, mz_zip_internal_state_tag::m_pMem, mz_zip_archive::m_pNeeds_keepalive, mz_zip_archive::m_pRead, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_archive::m_zip_type, MZ_FALSE, MZ_MAX, MZ_TRUE, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_FLAG_WRITE_ALLOW_READING, mz_zip_heap_write_func(), mz_zip_mem_read_func(), mz_zip_set_error(), MZ_ZIP_TYPE_HEAP, mz_zip_writer_end_internal(), and mz_zip_writer_init_v2().

Referenced by mz_zip_writer_init_heap().

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◆ mz_zip_writer_init_v2()

mz_bool mz_zip_writer_init_v2	(	mz_zip_archive *	pZip,
		mz_uint64	existing_size,
		mz_uint	flags
	)

{
    mz_bool zip64 = (flags & MZ_ZIP_FLAG_WRITE_ZIP64) != 0;
 
    if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
 
    if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
    {
        if (!pZip->m_pRead)
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
    }
 
    if (pZip->m_file_offset_alignment)
    {
        /* Ensure user specified file offset alignment is a power of 2. */
        if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1))
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
    }
 
    if (!pZip->m_pAlloc)
        pZip->m_pAlloc = miniz_def_alloc_func;
    if (!pZip->m_pFree)
        pZip->m_pFree = miniz_def_free_func;
    if (!pZip->m_pRealloc)
        pZip->m_pRealloc = miniz_def_realloc_func;
 
    pZip->m_archive_size = existing_size;
    pZip->m_central_directory_file_ofs = 0;
    pZip->m_total_files = 0;
 
    if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
 
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
    MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
 
    pZip->m_pState->m_zip64 = zip64;
    pZip->m_pState->m_zip64_has_extended_info_fields = zip64;
 
    pZip->m_zip_type = MZ_ZIP_TYPE_USER;
    pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
 
    return MZ_TRUE;
}

References mz_zip_archive::m_archive_size, mz_zip_internal_state_tag::m_central_dir, mz_zip_internal_state_tag::m_central_dir_offsets, mz_zip_archive::m_central_directory_file_ofs, mz_zip_archive::m_file_offset_alignment, mz_zip_archive::m_pAlloc, mz_zip_archive::m_pAlloc_opaque, mz_zip_archive::m_pFree, mz_zip_archive::m_pRead, mz_zip_archive::m_pRealloc, mz_zip_archive::m_pState, mz_zip_archive::m_pWrite, mz_zip_internal_state_tag::m_sorted_central_dir_offsets, mz_zip_archive::m_total_files, mz_zip_internal_state_tag::m_zip64, mz_zip_internal_state_tag::m_zip64_has_extended_info_fields, mz_zip_archive::m_zip_mode, mz_zip_archive::m_zip_type, miniz_def_alloc_func(), miniz_def_free_func(), miniz_def_realloc_func(), MZ_TRUE, MZ_ZIP_ALLOC_FAILED, MZ_ZIP_ARRAY_SET_ELEMENT_SIZE, MZ_ZIP_FLAG_WRITE_ALLOW_READING, MZ_ZIP_FLAG_WRITE_ZIP64, MZ_ZIP_INVALID_PARAMETER, MZ_ZIP_MODE_INVALID, MZ_ZIP_MODE_WRITING, mz_zip_set_error(), and MZ_ZIP_TYPE_USER.

Referenced by mz_zip_writer_init(), mz_zip_writer_init_cfile(), mz_zip_writer_init_file_v2(), and mz_zip_writer_init_heap_v2().

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◆ mz_zip_writer_preallocate_extra_data()

static mz_uint32 mz_zip_writer_preallocate_extra_data	(	mz_uint8 *	pBuf,
		mz_uint32	extra_data_size
	)

static

{
    mz_uint8 *pDst = pBuf;
    MZ_WRITE_LE16(pDst + 0, 0x9999);
    MZ_WRITE_LE16(pDst + 2, extra_data_size);
    memset(pDst + 4, 0, extra_data_size);
    return 2 * sizeof(mz_uint16) + extra_data_size;
}

References MZ_WRITE_LE16.

Referenced by mz_zip_writer_add_staged_open().

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◆ mz_zip_writer_update_zip64_extension_block()

static mz_bool mz_zip_writer_update_zip64_extension_block	(	mz_zip_array *	pNew_ext,
		mz_zip_archive *	pZip,
		const mz_uint8 *	pExt,
		uint32_t	ext_len,
		mz_uint64 *	pComp_size,
		mz_uint64 *	pUncomp_size,
		mz_uint64 *	pLocal_header_ofs,
		mz_uint32 *	pDisk_start
	)

static

{
    /* + 64 should be enough for any new zip64 data */
    if (!mz_zip_array_reserve(pZip, pNew_ext, ext_len + 64, MZ_FALSE))
        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
 
    mz_zip_array_resize(pZip, pNew_ext, 0, MZ_FALSE);
 
    if ((pUncomp_size) || (pComp_size) || (pLocal_header_ofs) || (pDisk_start))
    {
        mz_uint8 new_ext_block[64];
        mz_uint8 *pDst = new_ext_block;
        mz_write_le16(pDst, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
        mz_write_le16(pDst + sizeof(mz_uint16), 0);
        pDst += sizeof(mz_uint16) * 2;
 
        if (pUncomp_size)
        {
            mz_write_le64(pDst, *pUncomp_size);
            pDst += sizeof(mz_uint64);
        }
 
        if (pComp_size)
        {
            mz_write_le64(pDst, *pComp_size);
            pDst += sizeof(mz_uint64);
        }
 
        if (pLocal_header_ofs)
        {
            mz_write_le64(pDst, *pLocal_header_ofs);
            pDst += sizeof(mz_uint64);
        }
 
        if (pDisk_start)
        {
            mz_write_le32(pDst, *pDisk_start);
            pDst += sizeof(mz_uint32);
        }
 
        mz_write_le16(new_ext_block + sizeof(mz_uint16), (mz_uint16)((pDst - new_ext_block) - sizeof(mz_uint16) * 2));
 
        if (!mz_zip_array_push_back(pZip, pNew_ext, new_ext_block, pDst - new_ext_block))
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
    }
 
    if ((pExt) && (ext_len))
    {
        mz_uint32 extra_size_remaining = ext_len;
        const mz_uint8 *pExtra_data = pExt;
 
        do
        {
            mz_uint32 field_id, field_data_size, field_total_size;
 
            if (extra_size_remaining < (sizeof(mz_uint16) * 2))
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            field_id = MZ_READ_LE16(pExtra_data);
            field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
            field_total_size = field_data_size + sizeof(mz_uint16) * 2;
 
            if (field_total_size > extra_size_remaining)
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
 
            if (field_id != MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
            {
                if (!mz_zip_array_push_back(pZip, pNew_ext, pExtra_data, field_total_size))
                    return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
            }
 
            pExtra_data += field_total_size;
            extra_size_remaining -= field_total_size;
        } while (extra_size_remaining);
    }
 
    return MZ_TRUE;
}

References MZ_FALSE, MZ_READ_LE16, MZ_TRUE, mz_write_le16(), mz_write_le32(), mz_write_le64(), MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID, MZ_ZIP_ALLOC_FAILED, mz_zip_array_push_back(), mz_zip_array_reserve(), mz_zip_array_resize(), MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, and mz_zip_set_error().

Referenced by mz_zip_writer_add_from_zip_reader().

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◆ mz_zip_writer_validate_archive_name()

static mz_bool mz_zip_writer_validate_archive_name ( const char * pArchive_name )

static

{
    /* Basic ZIP archive filename validity checks: Valid filenames cannot start with a forward slash, cannot contain a drive letter, and cannot use DOS-style backward slashes. */
    if (*pArchive_name == '/')
        return MZ_FALSE;
 
    /* Making sure the name does not contain drive letters or DOS style backward slashes is the responsibility of the program using miniz*/
 
    return MZ_TRUE;
}

References MZ_FALSE, and MZ_TRUE.

Referenced by mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_writer_write_zeros()

static mz_bool mz_zip_writer_write_zeros	(	mz_zip_archive *	pZip,
		mz_uint64	cur_file_ofs,
		mz_uint32	n
	)

static

{
    char buf[4096];
    memset(buf, 0, MZ_MIN(sizeof(buf), n));
    while (n)
    {
        mz_uint32 s = MZ_MIN(sizeof(buf), n);
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s)
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
 
        cur_file_ofs += s;
        n -= s;
    }
    return MZ_TRUE;
}

References mz_zip_archive::m_pIO_opaque, mz_zip_archive::m_pWrite, MZ_MIN, MZ_TRUE, MZ_ZIP_FILE_WRITE_FAILED, and mz_zip_set_error().

Referenced by mz_zip_writer_add_from_zip_reader(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ mz_zip_zero_struct()

void mz_zip_zero_struct ( mz_zip_archive * pZip )

{
    if (pZip)
        MZ_CLEAR_OBJ(*pZip);
}

References MZ_CLEAR_OBJ.

Referenced by Slic3r::MZ_Archive::MZ_Archive(), Slic3r::_3MF_Importer::_load_model_from_file(), Slic3r::_3MF_Exporter::_save_model_to_file(), Slic3r::is_project_3mf(), Slic3r::load_amf_archive(), mz_zip_add_mem_to_archive_file_in_place_v2(), mz_zip_extract_archive_file_to_heap_v2(), mz_zip_validate_file_archive(), mz_zip_validate_mem_archive(), Slic3r::GUI::Plater::preview_zip_archive(), Slic3r::store_amf(), and Slic3r::PresetUpdater::priv::sync_config().

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◆ tdefl_calculate_minimum_redundancy()

static void tdefl_calculate_minimum_redundancy	(	tdefl_sym_freq *	A,
		int	n
	)

static

{
    int root, leaf, next, avbl, used, dpth;
    if (n == 0)
        return;
    else if (n == 1)
    {
        A[0].m_key = 1;
        return;
    }
    A[0].m_key += A[1].m_key;
    root = 0;
    leaf = 2;
    for (next = 1; next < n - 1; next++)
    {
        if (leaf >= n || A[root].m_key < A[leaf].m_key)
        {
            A[next].m_key = A[root].m_key;
            A[root++].m_key = (mz_uint16)next;
        }
        else
            A[next].m_key = A[leaf++].m_key;
        if (leaf >= n || (root < next && A[root].m_key < A[leaf].m_key))
        {
            A[next].m_key = (mz_uint16)(A[next].m_key + A[root].m_key);
            A[root++].m_key = (mz_uint16)next;
        }
        else
            A[next].m_key = (mz_uint16)(A[next].m_key + A[leaf++].m_key);
    }
    A[n - 2].m_key = 0;
    for (next = n - 3; next >= 0; next--)
        A[next].m_key = A[A[next].m_key].m_key + 1;
    avbl = 1;
    used = dpth = 0;
    root = n - 2;
    next = n - 1;
    while (avbl > 0)
    {
        while (root >= 0 && (int)A[root].m_key == dpth)
        {
            used++;
            root--;
        }
        while (avbl > used)
        {
            A[next--].m_key = (mz_uint16)(dpth);
            avbl--;
        }
        avbl = 2 * used;
        dpth++;
        used = 0;
    }
}

References tdefl_sym_freq::m_key.

Referenced by tdefl_optimize_huffman_table().

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◆ tdefl_compress()

tdefl_status tdefl_compress	(	tdefl_compressor *	d,
		const void *	pIn_buf,
		size_t *	pIn_buf_size,
		void *	pOut_buf,
		size_t *	pOut_buf_size,
		tdefl_flush	flush
	)

{
    if (!d)
    {
        if (pIn_buf_size)
            *pIn_buf_size = 0;
        if (pOut_buf_size)
            *pOut_buf_size = 0;
        return TDEFL_STATUS_BAD_PARAM;
    }
 
    d->m_pIn_buf = pIn_buf;
    d->m_pIn_buf_size = pIn_buf_size;
    d->m_pOut_buf = pOut_buf;
    d->m_pOut_buf_size = pOut_buf_size;
    d->m_pSrc = (const mz_uint8 *)(pIn_buf);
    d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0;
    d->m_out_buf_ofs = 0;
    d->m_flush = flush;
 
    if (((d->m_pPut_buf_func != NULL) == ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || (d->m_prev_return_status != TDEFL_STATUS_OKAY) ||
        (d->m_wants_to_finish && (flush != TDEFL_FINISH)) || (pIn_buf_size && *pIn_buf_size && !pIn_buf) || (pOut_buf_size && *pOut_buf_size && !pOut_buf))
    {
        if (pIn_buf_size)
            *pIn_buf_size = 0;
        if (pOut_buf_size)
            *pOut_buf_size = 0;
        return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM);
    }
    d->m_wants_to_finish |= (flush == TDEFL_FINISH);
 
    if ((d->m_output_flush_remaining) || (d->m_finished))
        return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
 
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
    if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) &&
        ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) &&
        ((d->m_flags & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | TDEFL_RLE_MATCHES)) == 0))
    {
        if (!tdefl_compress_fast(d))
            return d->m_prev_return_status;
    }
    else
#endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN */
    {
        if (!tdefl_compress_normal(d))
            return d->m_prev_return_status;
    }
 
    if ((d->m_flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) && (pIn_buf))
        d->m_adler32 = (mz_uint32)mz_adler32(d->m_adler32, (const mz_uint8 *)pIn_buf, d->m_pSrc - (const mz_uint8 *)pIn_buf);
 
    if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && (!d->m_output_flush_remaining))
    {
        if (tdefl_flush_block(d, flush) < 0)
            return d->m_prev_return_status;
        d->m_finished = (flush == TDEFL_FINISH);
        if (flush == TDEFL_FULL_FLUSH)
        {
            MZ_CLEAR_OBJ(d->m_hash);
            MZ_CLEAR_OBJ(d->m_next);
            d->m_dict_size = 0;
        }
    }
 
    return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
}

References mz_adler32(), MZ_CLEAR_OBJ, tdefl_compress_normal(), TDEFL_COMPUTE_ADLER32, TDEFL_FILTER_MATCHES, TDEFL_FINISH, tdefl_flush_block(), tdefl_flush_output_buffer(), TDEFL_FORCE_ALL_RAW_BLOCKS, TDEFL_FULL_FLUSH, TDEFL_GREEDY_PARSING_FLAG, TDEFL_MAX_PROBES_MASK, TDEFL_RLE_MATCHES, TDEFL_STATUS_BAD_PARAM, TDEFL_STATUS_OKAY, and TDEFL_WRITE_ZLIB_HEADER.

Referenced by mz_deflate(), and tdefl_compress_buffer().

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◆ tdefl_compress_block()

static mz_bool tdefl_compress_block	(	tdefl_compressor *	d,
		mz_bool	static_block
	)

static

{
    if (static_block)
        tdefl_start_static_block(d);
    else
        tdefl_start_dynamic_block(d);
    return tdefl_compress_lz_codes(d);
}

References tdefl_compress_lz_codes(), tdefl_start_dynamic_block(), and tdefl_start_static_block().

Referenced by tdefl_flush_block().

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◆ tdefl_compress_buffer()

tdefl_status tdefl_compress_buffer	(	tdefl_compressor *	d,
		const void *	pIn_buf,
		size_t	in_buf_size,
		tdefl_flush	flush
	)

{
    MZ_ASSERT(d->m_pPut_buf_func);
    return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush);
}

References MZ_ASSERT, and tdefl_compress().

Referenced by mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), mz_zip_writer_add_staged_data(), tdefl_compress_mem_to_output(), and tdefl_write_image_to_png_file_in_memory_ex().

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◆ tdefl_compress_lz_codes()

static mz_bool tdefl_compress_lz_codes ( tdefl_compressor * d )

static

{
    mz_uint flags;
    mz_uint8 *pLZ_codes;
 
    flags = 1;
    for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; flags >>= 1)
    {
        if (flags == 1)
            flags = *pLZ_codes++ | 0x100;
        if (flags & 1)
        {
            mz_uint sym, num_extra_bits;
            mz_uint match_len = pLZ_codes[0], match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8));
            pLZ_codes += 3;
 
            MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
            TDEFL_PUT_BITS(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
            TDEFL_PUT_BITS(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]);
 
            if (match_dist < 512)
            {
                sym = s_tdefl_small_dist_sym[match_dist];
                num_extra_bits = s_tdefl_small_dist_extra[match_dist];
            }
            else
            {
                sym = s_tdefl_large_dist_sym[match_dist >> 8];
                num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8];
            }
            MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
            TDEFL_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
            TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits);
        }
        else
        {
            mz_uint lit = *pLZ_codes++;
            MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
            TDEFL_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
        }
    }
 
    TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);
 
    return (d->m_pOutput_buf < d->m_pOutput_buf_end);
}

References MZ_ASSERT, mz_bitmasks, s_tdefl_large_dist_extra, s_tdefl_large_dist_sym, s_tdefl_len_extra, s_tdefl_len_sym, s_tdefl_small_dist_extra, s_tdefl_small_dist_sym, and TDEFL_PUT_BITS.

Referenced by tdefl_compress_block().

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◆ tdefl_compress_mem_to_heap()

void * tdefl_compress_mem_to_heap	(	const void *	pSrc_buf,
		size_t	src_buf_len,
		size_t *	pOut_len,
		int	flags
	)

{
    tdefl_output_buffer out_buf;
    MZ_CLEAR_OBJ(out_buf);
    if (!pOut_len)
        return MZ_FALSE;
    else
        *pOut_len = 0;
    out_buf.m_expandable = MZ_TRUE;
    if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags))
        return NULL;
    *pOut_len = out_buf.m_size;
    return out_buf.m_pBuf;
}

References tdefl_output_buffer::m_expandable, tdefl_output_buffer::m_pBuf, tdefl_output_buffer::m_size, MZ_CLEAR_OBJ, MZ_FALSE, MZ_TRUE, tdefl_compress_mem_to_output(), and tdefl_output_buffer_putter().

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◆ tdefl_compress_mem_to_mem()

size_t tdefl_compress_mem_to_mem	(	void *	pOut_buf,
		size_t	out_buf_len,
		const void *	pSrc_buf,
		size_t	src_buf_len,
		int	flags
	)

{
    tdefl_output_buffer out_buf;
    MZ_CLEAR_OBJ(out_buf);
    if (!pOut_buf)
        return 0;
    out_buf.m_pBuf = (mz_uint8 *)pOut_buf;
    out_buf.m_capacity = out_buf_len;
    if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags))
        return 0;
    return out_buf.m_size;
}

References tdefl_output_buffer::m_capacity, tdefl_output_buffer::m_pBuf, tdefl_output_buffer::m_size, MZ_CLEAR_OBJ, tdefl_compress_mem_to_output(), and tdefl_output_buffer_putter().

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◆ tdefl_compress_mem_to_output()

mz_bool tdefl_compress_mem_to_output	(	const void *	pBuf,
		size_t	buf_len,
		tdefl_put_buf_func_ptr	pPut_buf_func,
		void *	pPut_buf_user,
		int	flags
	)

{
    tdefl_compressor *pComp;
    mz_bool succeeded;
    if (((buf_len) && (!pBuf)) || (!pPut_buf_func))
        return MZ_FALSE;
    pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
    if (!pComp)
        return MZ_FALSE;
    succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == TDEFL_STATUS_OKAY);
    succeeded = succeeded && (tdefl_compress_buffer(pComp, pBuf, buf_len, TDEFL_FINISH) == TDEFL_STATUS_DONE);
    MZ_FREE(pComp);
    return succeeded;
}

References MZ_FALSE, MZ_FREE, MZ_MALLOC, tdefl_compress_buffer(), TDEFL_FINISH, tdefl_init(), TDEFL_STATUS_DONE, and TDEFL_STATUS_OKAY.

Referenced by tdefl_compress_mem_to_heap(), and tdefl_compress_mem_to_mem().

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◆ tdefl_compress_normal()

static mz_bool tdefl_compress_normal ( tdefl_compressor * d )

static

{
    const mz_uint8 *pSrc = d->m_pSrc;
    size_t src_buf_left = d->m_src_buf_left;
    tdefl_flush flush = d->m_flush;
 
    while ((src_buf_left) || ((flush) && (d->m_lookahead_size)))
    {
        mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos;
        /* Update dictionary and hash chains. Keeps the lookahead size equal to TDEFL_MAX_MATCH_LEN. */
        if ((d->m_lookahead_size + d->m_dict_size) >= (TDEFL_MIN_MATCH_LEN - 1))
        {
            mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK, ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2;
            mz_uint hash = (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK];
            mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size);
            const mz_uint8 *pSrc_end = pSrc + num_bytes_to_process;
            src_buf_left -= num_bytes_to_process;
            d->m_lookahead_size += num_bytes_to_process;
            while (pSrc != pSrc_end)
            {
                mz_uint8 c = *pSrc++;
                d->m_dict[dst_pos] = c;
                if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
                    d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
                hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
                d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash];
                d->m_hash[hash] = (mz_uint16)(ins_pos);
                dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
                ins_pos++;
            }
        }
        else
        {
            while ((src_buf_left) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
            {
                mz_uint8 c = *pSrc++;
                mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK;
                src_buf_left--;
                d->m_dict[dst_pos] = c;
                if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
                    d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
                if ((++d->m_lookahead_size + d->m_dict_size) >= TDEFL_MIN_MATCH_LEN)
                {
                    mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2;
                    mz_uint hash = ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << (TDEFL_LZ_HASH_SHIFT * 2)) ^ (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
                    d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash];
                    d->m_hash[hash] = (mz_uint16)(ins_pos);
                }
            }
        }
        d->m_dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size);
        if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
            break;
 
        /* Simple lazy/greedy parsing state machine. */
        len_to_move = 1;
        cur_match_dist = 0;
        cur_match_len = d->m_saved_match_len ? d->m_saved_match_len : (TDEFL_MIN_MATCH_LEN - 1);
        cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
        if (d->m_flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS))
        {
            if ((d->m_dict_size) && (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))
            {
                mz_uint8 c = d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK];
                cur_match_len = 0;
                while (cur_match_len < d->m_lookahead_size)
                {
                    if (d->m_dict[cur_pos + cur_match_len] != c)
                        break;
                    cur_match_len++;
                }
                if (cur_match_len < TDEFL_MIN_MATCH_LEN)
                    cur_match_len = 0;
                else
                    cur_match_dist = 1;
            }
        }
        else
        {
            tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, d->m_lookahead_size, &cur_match_dist, &cur_match_len);
        }
        if (((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U * 1024U)) || (cur_pos == cur_match_dist) || ((d->m_flags & TDEFL_FILTER_MATCHES) && (cur_match_len <= 5)))
        {
            cur_match_dist = cur_match_len = 0;
        }
        if (d->m_saved_match_len)
        {
            if (cur_match_len > d->m_saved_match_len)
            {
                tdefl_record_literal(d, (mz_uint8)d->m_saved_lit);
                if (cur_match_len >= 128)
                {
                    tdefl_record_match(d, cur_match_len, cur_match_dist);
                    d->m_saved_match_len = 0;
                    len_to_move = cur_match_len;
                }
                else
                {
                    d->m_saved_lit = d->m_dict[cur_pos];
                    d->m_saved_match_dist = cur_match_dist;
                    d->m_saved_match_len = cur_match_len;
                }
            }
            else
            {
                tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist);
                len_to_move = d->m_saved_match_len - 1;
                d->m_saved_match_len = 0;
            }
        }
        else if (!cur_match_dist)
            tdefl_record_literal(d, d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]);
        else if ((d->m_greedy_parsing) || (d->m_flags & TDEFL_RLE_MATCHES) || (cur_match_len >= 128))
        {
            tdefl_record_match(d, cur_match_len, cur_match_dist);
            len_to_move = cur_match_len;
        }
        else
        {
            d->m_saved_lit = d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)];
            d->m_saved_match_dist = cur_match_dist;
            d->m_saved_match_len = cur_match_len;
        }
        /* Move the lookahead forward by len_to_move bytes. */
        d->m_lookahead_pos += len_to_move;
        MZ_ASSERT(d->m_lookahead_size >= len_to_move);
        d->m_lookahead_size -= len_to_move;
        d->m_dict_size = MZ_MIN(d->m_dict_size + len_to_move, (mz_uint)TDEFL_LZ_DICT_SIZE);
        /* Check if it's time to flush the current LZ codes to the internal output buffer. */
        if ((d->m_pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) ||
            ((d->m_total_lz_bytes > 31 * 1024) && (((((mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= d->m_total_lz_bytes) || (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))))
        {
            int n;
            d->m_pSrc = pSrc;
            d->m_src_buf_left = src_buf_left;
            if ((n = tdefl_flush_block(d, 0)) != 0)
                return (n < 0) ? MZ_FALSE : MZ_TRUE;
        }
    }
 
    d->m_pSrc = pSrc;
    d->m_src_buf_left = src_buf_left;
    return MZ_TRUE;
}

References MZ_ASSERT, MZ_FALSE, MZ_MIN, MZ_TRUE, TDEFL_FILTER_MATCHES, tdefl_find_match(), tdefl_flush_block(), TDEFL_FORCE_ALL_RAW_BLOCKS, TDEFL_LZ_CODE_BUF_SIZE, TDEFL_LZ_DICT_SIZE, TDEFL_LZ_DICT_SIZE_MASK, TDEFL_LZ_HASH_SHIFT, TDEFL_LZ_HASH_SIZE, TDEFL_MAX_MATCH_LEN, TDEFL_MIN_MATCH_LEN, tdefl_record_literal(), tdefl_record_match(), and TDEFL_RLE_MATCHES.

Referenced by tdefl_compress().

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◆ tdefl_compressor_alloc()

tdefl_compressor * tdefl_compressor_alloc ( void )

{
    return (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
}

References MZ_MALLOC.

◆ tdefl_compressor_free()

void tdefl_compressor_free ( tdefl_compressor * pComp )

{
    MZ_FREE(pComp);
}

References MZ_FREE.

◆ tdefl_create_comp_flags_from_zip_params()

mz_uint tdefl_create_comp_flags_from_zip_params	(	int	level,
		int	window_bits,
		int	strategy
	)

{
    mz_uint comp_flags = s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level) : MZ_DEFAULT_LEVEL] | ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0);
    if (window_bits > 0)
        comp_flags |= TDEFL_WRITE_ZLIB_HEADER;
 
    if (!level)
        comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS;
    else if (strategy == MZ_FILTERED)
        comp_flags |= TDEFL_FILTER_MATCHES;
    else if (strategy == MZ_HUFFMAN_ONLY)
        comp_flags &= ~TDEFL_MAX_PROBES_MASK;
    else if (strategy == MZ_FIXED)
        comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS;
    else if (strategy == MZ_RLE)
        comp_flags |= TDEFL_RLE_MATCHES;
 
    return comp_flags;
}

References MZ_DEFAULT_LEVEL, MZ_FILTERED, MZ_FIXED, MZ_HUFFMAN_ONLY, MZ_MIN, MZ_RLE, s_tdefl_num_probes, TDEFL_FILTER_MATCHES, TDEFL_FORCE_ALL_RAW_BLOCKS, TDEFL_FORCE_ALL_STATIC_BLOCKS, TDEFL_GREEDY_PARSING_FLAG, TDEFL_RLE_MATCHES, and TDEFL_WRITE_ZLIB_HEADER.

Referenced by mz_deflateInit2(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), and mz_zip_writer_add_staged_open().

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◆ tdefl_find_match()

static MZ_FORCEINLINE void tdefl_find_match	(	tdefl_compressor *	d,
		mz_uint	lookahead_pos,
		mz_uint	max_dist,
		mz_uint	max_match_len,
		mz_uint *	pMatch_dist,
		mz_uint *	pMatch_len
	)

static

{
    mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
    mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
    const mz_uint8 *s = d->m_dict + pos, *p, *q;
    mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1];
    MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN);
    if (max_match_len <= match_len)
        return;
    for (;;)
    {
        for (;;)
        {
            if (--num_probes_left == 0)
                return;
#define TDEFL_PROBE                                                                               \
    next_probe_pos = d->m_next[probe_pos];                                                        \
    if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist))   \
        return;                                                                                   \
    probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK;                                         \
    if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) \
        break;
            TDEFL_PROBE;
            TDEFL_PROBE;
            TDEFL_PROBE;
        }
        if (!dist)
            break;
        p = s;
        q = d->m_dict + probe_pos;
        for (probe_len = 0; probe_len < max_match_len; probe_len++)
            if (*p++ != *q++)
                break;
        if (probe_len > match_len)
        {
            *pMatch_dist = dist;
            if ((*pMatch_len = match_len = probe_len) == max_match_len)
                return;
            c0 = d->m_dict[pos + match_len];
            c1 = d->m_dict[pos + match_len - 1];
        }
    }
}

References MZ_ASSERT, TDEFL_LZ_DICT_SIZE_MASK, TDEFL_MAX_MATCH_LEN, and TDEFL_PROBE.

Referenced by tdefl_compress_normal().

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◆ tdefl_flush_block()

static int tdefl_flush_block	(	tdefl_compressor *	d,
		int	flush
	)

static

{
    mz_uint saved_bit_buf, saved_bits_in;
    mz_uint8 *pSaved_output_buf;
    mz_bool comp_block_succeeded = MZ_FALSE;
    int n, use_raw_block = ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) != 0) && (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size;
    mz_uint8 *pOutput_buf_start = ((d->m_pPut_buf_func == NULL) && ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= TDEFL_OUT_BUF_SIZE)) ? ((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) : d->m_output_buf;
 
    d->m_pOutput_buf = pOutput_buf_start;
    d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16;
 
    MZ_ASSERT(!d->m_output_flush_remaining);
    d->m_output_flush_ofs = 0;
    d->m_output_flush_remaining = 0;
 
    *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left);
    d->m_pLZ_code_buf -= (d->m_num_flags_left == 8);
 
    if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index))
    {
        TDEFL_PUT_BITS(0x78, 8);
        TDEFL_PUT_BITS(0x01, 8);
    }
 
    TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1);
 
    pSaved_output_buf = d->m_pOutput_buf;
    saved_bit_buf = d->m_bit_buffer;
    saved_bits_in = d->m_bits_in;
 
    if (!use_raw_block)
        comp_block_succeeded = tdefl_compress_block(d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) || (d->m_total_lz_bytes < 48));
 
    /* If the block gets expanded, forget the current contents of the output buffer and send a raw block instead. */
    if (((use_raw_block) || ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= d->m_total_lz_bytes))) &&
        ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size))
    {
        mz_uint i;
        d->m_pOutput_buf = pSaved_output_buf;
        d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
        TDEFL_PUT_BITS(0, 2);
        if (d->m_bits_in)
        {
            TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
        }
        for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF)
        {
            TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16);
        }
        for (i = 0; i < d->m_total_lz_bytes; ++i)
        {
            TDEFL_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) & TDEFL_LZ_DICT_SIZE_MASK], 8);
        }
    }
    /* Check for the extremely unlikely (if not impossible) case of the compressed block not fitting into the output buffer when using dynamic codes. */
    else if (!comp_block_succeeded)
    {
        d->m_pOutput_buf = pSaved_output_buf;
        d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
        tdefl_compress_block(d, MZ_TRUE);
    }
 
    if (flush)
    {
        if (flush == TDEFL_FINISH)
        {
            if (d->m_bits_in)
            {
                TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
            }
            if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER)
            {
                mz_uint i, a = d->m_adler32;
                for (i = 0; i < 4; i++)
                {
                    TDEFL_PUT_BITS((a >> 24) & 0xFF, 8);
                    a <<= 8;
                }
            }
        }
        else
        {
            mz_uint i, z = 0;
            TDEFL_PUT_BITS(0, 3);
            if (d->m_bits_in)
            {
                TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
            }
            for (i = 2; i; --i, z ^= 0xFFFF)
            {
                TDEFL_PUT_BITS(z & 0xFFFF, 16);
            }
        }
    }
 
    MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end);
 
    memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
    memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
 
    d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
    d->m_pLZ_flags = d->m_lz_code_buf;
    d->m_num_flags_left = 8;
    d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes;
    d->m_total_lz_bytes = 0;
    d->m_block_index++;
 
    if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0)
    {
        if (d->m_pPut_buf_func)
        {
            *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
            if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user))
                return (d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED);
        }
        else if (pOutput_buf_start == d->m_output_buf)
        {
            int bytes_to_copy = (int)MZ_MIN((size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs));
            memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, bytes_to_copy);
            d->m_out_buf_ofs += bytes_to_copy;
            if ((n -= bytes_to_copy) != 0)
            {
                d->m_output_flush_ofs = bytes_to_copy;
                d->m_output_flush_remaining = n;
            }
        }
        else
        {
            d->m_out_buf_ofs += n;
        }
    }
 
    return d->m_output_flush_remaining;
}

References MZ_ASSERT, MZ_FALSE, MZ_MIN, MZ_TRUE, tdefl_compress_block(), TDEFL_FINISH, TDEFL_FORCE_ALL_RAW_BLOCKS, TDEFL_FORCE_ALL_STATIC_BLOCKS, TDEFL_LZ_DICT_SIZE_MASK, TDEFL_MAX_HUFF_SYMBOLS_0, TDEFL_MAX_HUFF_SYMBOLS_1, TDEFL_OUT_BUF_SIZE, TDEFL_PUT_BITS, TDEFL_STATUS_PUT_BUF_FAILED, and TDEFL_WRITE_ZLIB_HEADER.

Referenced by tdefl_compress(), and tdefl_compress_normal().

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◆ tdefl_flush_output_buffer()

static tdefl_status tdefl_flush_output_buffer ( tdefl_compressor * d )

static

{
    if (d->m_pIn_buf_size)
    {
        *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
    }
 
    if (d->m_pOut_buf_size)
    {
        size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, d->m_output_flush_remaining);
        memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf + d->m_output_flush_ofs, n);
        d->m_output_flush_ofs += (mz_uint)n;
        d->m_output_flush_remaining -= (mz_uint)n;
        d->m_out_buf_ofs += n;
 
        *d->m_pOut_buf_size = d->m_out_buf_ofs;
    }
 
    return (d->m_finished && !d->m_output_flush_remaining) ? TDEFL_STATUS_DONE : TDEFL_STATUS_OKAY;
}

References MZ_MIN, TDEFL_STATUS_DONE, and TDEFL_STATUS_OKAY.

Referenced by tdefl_compress().

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◆ tdefl_get_adler32()

mz_uint32 tdefl_get_adler32 ( tdefl_compressor * d )

{
    return d->m_adler32;
}

Referenced by mz_deflate().

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◆ tdefl_get_prev_return_status()

tdefl_status tdefl_get_prev_return_status ( tdefl_compressor * d )

{
    return d->m_prev_return_status;
}

◆ tdefl_huffman_enforce_max_code_size()

static void tdefl_huffman_enforce_max_code_size	(	int *	pNum_codes,
		int	code_list_len,
		int	max_code_size
	)

static

{
    int i;
    mz_uint32 total = 0;
    if (code_list_len <= 1)
        return;
    for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE; i++)
        pNum_codes[max_code_size] += pNum_codes[i];
    for (i = max_code_size; i > 0; i--)
        total += (((mz_uint32)pNum_codes[i]) << (max_code_size - i));
    while (total != (1UL << max_code_size))
    {
        pNum_codes[max_code_size]--;
        for (i = max_code_size - 1; i > 0; i--)
            if (pNum_codes[i])
            {
                pNum_codes[i]--;
                pNum_codes[i + 1] += 2;
                break;
            }
        total--;
    }
}

References TDEFL_MAX_SUPPORTED_HUFF_CODESIZE.

Referenced by tdefl_optimize_huffman_table().

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◆ tdefl_init()

tdefl_status tdefl_init	(	tdefl_compressor *	d,
		tdefl_put_buf_func_ptr	pPut_buf_func,
		void *	pPut_buf_user,
		int	flags
	)

{
    d->m_pPut_buf_func = pPut_buf_func;
    d->m_pPut_buf_user = pPut_buf_user;
    d->m_flags = (mz_uint)(flags);
    d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3;
    d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0;
    d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3;
    if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
        MZ_CLEAR_OBJ(d->m_hash);
    d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0;
    d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0;
    d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
    d->m_pLZ_flags = d->m_lz_code_buf;
    d->m_num_flags_left = 8;
    d->m_pOutput_buf = d->m_output_buf;
    d->m_pOutput_buf_end = d->m_output_buf;
    d->m_prev_return_status = TDEFL_STATUS_OKAY;
    d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0;
    d->m_adler32 = 1;
    d->m_pIn_buf = NULL;
    d->m_pOut_buf = NULL;
    d->m_pIn_buf_size = NULL;
    d->m_pOut_buf_size = NULL;
    d->m_flush = TDEFL_NO_FLUSH;
    d->m_pSrc = NULL;
    d->m_src_buf_left = 0;
    d->m_out_buf_ofs = 0;
    if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
        MZ_CLEAR_OBJ(d->m_dict);
    memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
    memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
    return TDEFL_STATUS_OKAY;
}

References MZ_CLEAR_OBJ, TDEFL_GREEDY_PARSING_FLAG, TDEFL_MAX_HUFF_SYMBOLS_0, TDEFL_MAX_HUFF_SYMBOLS_1, TDEFL_NO_FLUSH, TDEFL_NONDETERMINISTIC_PARSING_FLAG, and TDEFL_STATUS_OKAY.

Referenced by mz_deflateInit2(), mz_deflateReset(), mz_zip_writer_add_mem_ex_v2(), mz_zip_writer_add_read_buf_callback(), mz_zip_writer_add_staged_open(), tdefl_compress_mem_to_output(), and tdefl_write_image_to_png_file_in_memory_ex().

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◆ tdefl_optimize_huffman_table()

static void tdefl_optimize_huffman_table	(	tdefl_compressor *	d,
		int	table_num,
		int	table_len,
		int	code_size_limit,
		int	static_table
	)

static

{
    int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE];
    mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1];
    MZ_CLEAR_OBJ(num_codes);
    if (static_table)
    {
        for (i = 0; i < table_len; i++)
            num_codes[d->m_huff_code_sizes[table_num][i]]++;
    }
    else
    {
        tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS], syms1[TDEFL_MAX_HUFF_SYMBOLS], *pSyms;
        int num_used_syms = 0;
        const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0];
        for (i = 0; i < table_len; i++)
            if (pSym_count[i])
            {
                syms0[num_used_syms].m_key = (mz_uint16)pSym_count[i];
                syms0[num_used_syms++].m_sym_index = (mz_uint16)i;
            }
 
        pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1);
        tdefl_calculate_minimum_redundancy(pSyms, num_used_syms);
 
        for (i = 0; i < num_used_syms; i++)
            num_codes[pSyms[i].m_key]++;
 
        tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, code_size_limit);
 
        MZ_CLEAR_OBJ(d->m_huff_code_sizes[table_num]);
        MZ_CLEAR_OBJ(d->m_huff_codes[table_num]);
        for (i = 1, j = num_used_syms; i <= code_size_limit; i++)
            for (l = num_codes[i]; l > 0; l--)
                d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (mz_uint8)(i);
    }
 
    next_code[1] = 0;
    for (j = 0, i = 2; i <= code_size_limit; i++)
        next_code[i] = j = ((j + num_codes[i - 1]) << 1);
 
    for (i = 0; i < table_len; i++)
    {
        mz_uint rev_code = 0, code, code_size;
        if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0)
            continue;
        code = next_code[code_size]++;
        for (l = code_size; l > 0; l--, code >>= 1)
            rev_code = (rev_code << 1) | (code & 1);
        d->m_huff_codes[table_num][i] = (mz_uint16)rev_code;
    }
}

References tdefl_sym_freq::m_key, tdefl_sym_freq::m_sym_index, MZ_CLEAR_OBJ, tdefl_calculate_minimum_redundancy(), tdefl_huffman_enforce_max_code_size(), TDEFL_MAX_HUFF_SYMBOLS, TDEFL_MAX_SUPPORTED_HUFF_CODESIZE, and tdefl_radix_sort_syms().

Referenced by tdefl_start_dynamic_block(), and tdefl_start_static_block().

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◆ tdefl_output_buffer_putter()

static mz_bool tdefl_output_buffer_putter	(	const void *	pBuf,
		int	len,
		void *	pUser
	)

static

{
    tdefl_output_buffer *p = (tdefl_output_buffer *)pUser;
    size_t new_size = p->m_size + len;
    if (new_size > p->m_capacity)
    {
        size_t new_capacity = p->m_capacity;
        mz_uint8 *pNew_buf;
        if (!p->m_expandable)
            return MZ_FALSE;
        do
        {
            new_capacity = MZ_MAX(128U, new_capacity << 1U);
        } while (new_size > new_capacity);
        pNew_buf = (mz_uint8 *)MZ_REALLOC(p->m_pBuf, new_capacity);
        if (!pNew_buf)
            return MZ_FALSE;
        p->m_pBuf = pNew_buf;
        p->m_capacity = new_capacity;
    }
    memcpy((mz_uint8 *)p->m_pBuf + p->m_size, pBuf, len);
    p->m_size = new_size;
    return MZ_TRUE;
}

References tdefl_output_buffer::m_capacity, tdefl_output_buffer::m_expandable, tdefl_output_buffer::m_pBuf, tdefl_output_buffer::m_size, MZ_FALSE, MZ_MAX, MZ_REALLOC, and MZ_TRUE.

Referenced by tdefl_compress_mem_to_heap(), tdefl_compress_mem_to_mem(), and tdefl_write_image_to_png_file_in_memory_ex().

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◆ tdefl_radix_sort_syms()

static tdefl_sym_freq * tdefl_radix_sort_syms	(	mz_uint	num_syms,
		tdefl_sym_freq *	pSyms0,
		tdefl_sym_freq *	pSyms1
	)

static

{
    mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2];
    tdefl_sym_freq *pCur_syms = pSyms0, *pNew_syms = pSyms1;
    MZ_CLEAR_OBJ(hist);
    for (i = 0; i < num_syms; i++)
    {
        mz_uint freq = pSyms0[i].m_key;
        hist[freq & 0xFF]++;
        hist[256 + ((freq >> 8) & 0xFF)]++;
    }
    while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256]))
        total_passes--;
    for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8)
    {
        const mz_uint32 *pHist = &hist[pass << 8];
        mz_uint offsets[256], cur_ofs = 0;
        for (i = 0; i < 256; i++)
        {
            offsets[i] = cur_ofs;
            cur_ofs += pHist[i];
        }
        for (i = 0; i < num_syms; i++)
            pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = pCur_syms[i];
        {
            tdefl_sym_freq *t = pCur_syms;
            pCur_syms = pNew_syms;
            pNew_syms = t;
        }
    }
    return pCur_syms;
}

References tdefl_sym_freq::m_key, and MZ_CLEAR_OBJ.

Referenced by tdefl_optimize_huffman_table().

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◆ tdefl_record_literal()

static MZ_FORCEINLINE void tdefl_record_literal	(	tdefl_compressor *	d,
		mz_uint8	lit
	)

static

{
    d->m_total_lz_bytes++;
    *d->m_pLZ_code_buf++ = lit;
    *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> 1);
    if (--d->m_num_flags_left == 0)
    {
        d->m_num_flags_left = 8;
        d->m_pLZ_flags = d->m_pLZ_code_buf++;
    }
    d->m_huff_count[0][lit]++;
}

Referenced by tdefl_compress_normal().

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◆ tdefl_record_match()

static MZ_FORCEINLINE void tdefl_record_match	(	tdefl_compressor *	d,
		mz_uint	match_len,
		mz_uint	match_dist
	)

static

{
    mz_uint32 s0, s1;
 
    MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) && (match_dist <= TDEFL_LZ_DICT_SIZE));
 
    d->m_total_lz_bytes += match_len;
 
    d->m_pLZ_code_buf[0] = (mz_uint8)(match_len - TDEFL_MIN_MATCH_LEN);
 
    match_dist -= 1;
    d->m_pLZ_code_buf[1] = (mz_uint8)(match_dist & 0xFF);
    d->m_pLZ_code_buf[2] = (mz_uint8)(match_dist >> 8);
    d->m_pLZ_code_buf += 3;
 
    *d->m_pLZ_flags = (mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80);
    if (--d->m_num_flags_left == 0)
    {
        d->m_num_flags_left = 8;
        d->m_pLZ_flags = d->m_pLZ_code_buf++;
    }
 
    s0 = s_tdefl_small_dist_sym[match_dist & 511];
    s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127];
    d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++;
 
    if (match_len >= TDEFL_MIN_MATCH_LEN)
        d->m_huff_count[0][s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++;
}

References MZ_ASSERT, s_tdefl_large_dist_sym, s_tdefl_len_sym, s_tdefl_small_dist_sym, TDEFL_LZ_DICT_SIZE, and TDEFL_MIN_MATCH_LEN.

Referenced by tdefl_compress_normal().

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◆ tdefl_start_dynamic_block()

static void tdefl_start_dynamic_block ( tdefl_compressor * d )

static

{
    int num_lit_codes, num_dist_codes, num_bit_lengths;
    mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, rle_repeat_count, packed_code_sizes_index;
    mz_uint8 code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], prev_code_size = 0xFF;
 
    d->m_huff_count[0][256] = 1;
 
    tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15, MZ_FALSE);
    tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15, MZ_FALSE);
 
    for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--)
        if (d->m_huff_code_sizes[0][num_lit_codes - 1])
            break;
    for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--)
        if (d->m_huff_code_sizes[1][num_dist_codes - 1])
            break;
 
    memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes);
    memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], num_dist_codes);
    total_code_sizes_to_pack = num_lit_codes + num_dist_codes;
    num_packed_code_sizes = 0;
    rle_z_count = 0;
    rle_repeat_count = 0;
 
    memset(&d->m_huff_count[2][0], 0, sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2);
    for (i = 0; i < total_code_sizes_to_pack; i++)
    {
        mz_uint8 code_size = code_sizes_to_pack[i];
        if (!code_size)
        {
            TDEFL_RLE_PREV_CODE_SIZE();
            if (++rle_z_count == 138)
            {
                TDEFL_RLE_ZERO_CODE_SIZE();
            }
        }
        else
        {
            TDEFL_RLE_ZERO_CODE_SIZE();
            if (code_size != prev_code_size)
            {
                TDEFL_RLE_PREV_CODE_SIZE();
                d->m_huff_count[2][code_size] = (mz_uint16)(d->m_huff_count[2][code_size] + 1);
                packed_code_sizes[num_packed_code_sizes++] = code_size;
            }
            else if (++rle_repeat_count == 6)
            {
                TDEFL_RLE_PREV_CODE_SIZE();
            }
        }
        prev_code_size = code_size;
    }
    if (rle_repeat_count)
    {
        TDEFL_RLE_PREV_CODE_SIZE();
    }
    else
    {
        TDEFL_RLE_ZERO_CODE_SIZE();
    }
 
    tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7, MZ_FALSE);
 
    TDEFL_PUT_BITS(2, 2);
 
    TDEFL_PUT_BITS(num_lit_codes - 257, 5);
    TDEFL_PUT_BITS(num_dist_codes - 1, 5);
 
    for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--)
        if (d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]])
            break;
    num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1));
    TDEFL_PUT_BITS(num_bit_lengths - 4, 4);
    for (i = 0; (int)i < num_bit_lengths; i++)
        TDEFL_PUT_BITS(d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[i]], 3);
 
    for (packed_code_sizes_index = 0; packed_code_sizes_index < num_packed_code_sizes;)
    {
        mz_uint code = packed_code_sizes[packed_code_sizes_index++];
        MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2);
        TDEFL_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]);
        if (code >= 16)
            TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], "\02\03\07"[code - 16]);
    }
}

References MZ_ASSERT, MZ_FALSE, MZ_MAX, s_tdefl_packed_code_size_syms_swizzle, TDEFL_MAX_HUFF_SYMBOLS_0, TDEFL_MAX_HUFF_SYMBOLS_1, TDEFL_MAX_HUFF_SYMBOLS_2, tdefl_optimize_huffman_table(), TDEFL_PUT_BITS, TDEFL_RLE_PREV_CODE_SIZE, and TDEFL_RLE_ZERO_CODE_SIZE.

Referenced by tdefl_compress_block().

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◆ tdefl_start_static_block()

static void tdefl_start_static_block ( tdefl_compressor * d )

static

{
    mz_uint i;
    mz_uint8 *p = &d->m_huff_code_sizes[0][0];
 
    for (i = 0; i <= 143; ++i)
        *p++ = 8;
    for (; i <= 255; ++i)
        *p++ = 9;
    for (; i <= 279; ++i)
        *p++ = 7;
    for (; i <= 287; ++i)
        *p++ = 8;
 
    memset(d->m_huff_code_sizes[1], 5, 32);
 
    tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE);
    tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE);
 
    TDEFL_PUT_BITS(1, 2);
}

References MZ_TRUE, tdefl_optimize_huffman_table(), and TDEFL_PUT_BITS.

Referenced by tdefl_compress_block().

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◆ tdefl_write_image_to_png_file_in_memory()

void * tdefl_write_image_to_png_file_in_memory	(	const void *	pImage,
		int	w,
		int	h,
		int	num_chans,
		size_t *	pLen_out
	)

{
    /* Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or MZ_DEFAULT_LEVEL (but we can't depend on MZ_DEFAULT_LEVEL being available in case the zlib API's where #defined out) */
    return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE);
}

References MZ_FALSE, and tdefl_write_image_to_png_file_in_memory_ex().

Referenced by Slic3r::sla::PNGRasterEncoder::operator()().

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◆ tdefl_write_image_to_png_file_in_memory_ex()

void * tdefl_write_image_to_png_file_in_memory_ex	(	const void *	pImage,
		int	w,
		int	h,
		int	num_chans,
		size_t *	pLen_out,
		mz_uint	level,
		mz_bool	flip
	)

{
    /* Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was defined. */
    static const mz_uint s_tdefl_png_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 };
    tdefl_compressor *pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
    tdefl_output_buffer out_buf;
    int i, bpl = w * num_chans, y, z;
    mz_uint32 c;
    *pLen_out = 0;
    if (!pComp)
        return NULL;
    MZ_CLEAR_OBJ(out_buf);
    out_buf.m_expandable = MZ_TRUE;
    out_buf.m_capacity = 57 + MZ_MAX(64, (1 + bpl) * h);
    if (NULL == (out_buf.m_pBuf = (mz_uint8 *)MZ_MALLOC(out_buf.m_capacity)))
    {
        MZ_FREE(pComp);
        return NULL;
    }
    /* write dummy header */
    for (z = 41; z; --z)
        tdefl_output_buffer_putter(&z, 1, &out_buf);
    /* compress image data */
    tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER);
    for (y = 0; y < h; ++y)
    {
        tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH);
        tdefl_compress_buffer(pComp, (mz_uint8 *)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH);
    }
    if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE)
    {
        MZ_FREE(pComp);
        MZ_FREE(out_buf.m_pBuf);
        return NULL;
    }
    /* write real header */
    *pLen_out = out_buf.m_size - 41;
    {
        static const mz_uint8 chans[] = { 0x00, 0x00, 0x04, 0x02, 0x06 };
        mz_uint8 pnghdr[41] = { 0x89, 0x50, 0x4e, 0x47, 0x0d,
                                0x0a, 0x1a, 0x0a, 0x00, 0x00,
                                0x00, 0x0d, 0x49, 0x48, 0x44,
                                0x52, 0x00, 0x00, 0x00, 0x00,
                                0x00, 0x00, 0x00, 0x00, 0x08,
                                0x00, 0x00, 0x00, 0x00, 0x00,
                                0x00, 0x00, 0x00, 0x00, 0x00,
                                0x00, 0x00, 0x49, 0x44, 0x41,
                                0x54 };
        pnghdr[18] = (mz_uint8)(w >> 8);
        pnghdr[19] = (mz_uint8)w;
        pnghdr[22] = (mz_uint8)(h >> 8);
        pnghdr[23] = (mz_uint8)h;
        pnghdr[25] = chans[num_chans];
        pnghdr[33] = (mz_uint8)(*pLen_out >> 24);
        pnghdr[34] = (mz_uint8)(*pLen_out >> 16);
        pnghdr[35] = (mz_uint8)(*pLen_out >> 8);
        pnghdr[36] = (mz_uint8)*pLen_out;
        c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, pnghdr + 12, 17);
        for (i = 0; i < 4; ++i, c <<= 8)
            ((mz_uint8 *)(pnghdr + 29))[i] = (mz_uint8)(c >> 24);
        memcpy(out_buf.m_pBuf, pnghdr, 41);
    }
    /* write footer (IDAT CRC-32, followed by IEND chunk) */
    if (!tdefl_output_buffer_putter("\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf))
    {
        *pLen_out = 0;
        MZ_FREE(pComp);
        MZ_FREE(out_buf.m_pBuf);
        return NULL;
    }
    c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, out_buf.m_pBuf + 41 - 4, *pLen_out + 4);
    for (i = 0; i < 4; ++i, c <<= 8)
        (out_buf.m_pBuf + out_buf.m_size - 16)[i] = (mz_uint8)(c >> 24);
    /* compute final size of file, grab compressed data buffer and return */
    *pLen_out += 57;
    MZ_FREE(pComp);
    return out_buf.m_pBuf;
}

References tdefl_output_buffer::m_capacity, tdefl_output_buffer::m_expandable, tdefl_output_buffer::m_pBuf, tdefl_output_buffer::m_size, MZ_CLEAR_OBJ, mz_crc32(), MZ_CRC32_INIT, MZ_FREE, MZ_MALLOC, MZ_MAX, MZ_MIN, MZ_TRUE, tdefl_compress_buffer(), TDEFL_FINISH, tdefl_init(), TDEFL_NO_FLUSH, tdefl_output_buffer_putter(), TDEFL_STATUS_DONE, and TDEFL_WRITE_ZLIB_HEADER.

Referenced by Slic3r::_3MF_Exporter::_add_thumbnail_file_to_archive(), Slic3r::GCodeThumbnails::compress_thumbnail_png(), tdefl_write_image_to_png_file_in_memory(), and Slic3r::write_thumbnail().

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◆ tinfl_decompress()

tinfl_status tinfl_decompress	(	tinfl_decompressor *	r,
		const mz_uint8 *	pIn_buf_next,
		size_t *	pIn_buf_size,
		mz_uint8 *	pOut_buf_start,
		mz_uint8 *	pOut_buf_next,
		size_t *	pOut_buf_size,
		const mz_uint32	decomp_flags
	)

{
    static const int s_length_base[31] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0 };
    static const int s_length_extra[31] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 0, 0 };
    static const int s_dist_base[32] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0 };
    static const int s_dist_extra[32] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13 };
    static const mz_uint8 s_length_dezigzag[19] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 };
    static const int s_min_table_sizes[3] = { 257, 1, 4 };
 
    tinfl_status status = TINFL_STATUS_FAILED;
    mz_uint32 num_bits, dist, counter, num_extra;
    tinfl_bit_buf_t bit_buf;
    const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = pIn_buf_next + *pIn_buf_size;
    mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = pOut_buf_next + *pOut_buf_size;
    size_t out_buf_size_mask = (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) ? (size_t)-1 : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, dist_from_out_buf_start;
 
    /* Ensure the output buffer's size is a power of 2, unless the output buffer is large enough to hold the entire output file (in which case it doesn't matter). */
    if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start))
    {
        *pIn_buf_size = *pOut_buf_size = 0;
        return TINFL_STATUS_BAD_PARAM;
    }
 
    num_bits = r->m_num_bits;
    bit_buf = r->m_bit_buf;
    dist = r->m_dist;
    counter = r->m_counter;
    num_extra = r->m_num_extra;
    dist_from_out_buf_start = r->m_dist_from_out_buf_start;
    TINFL_CR_BEGIN
 
    bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0;
    r->m_z_adler32 = r->m_check_adler32 = 1;
    if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
    {
        TINFL_GET_BYTE(1, r->m_zhdr0);
        TINFL_GET_BYTE(2, r->m_zhdr1);
        counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8));
        if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
            counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || ((out_buf_size_mask + 1) < (size_t)(1U << (8U + (r->m_zhdr0 >> 4)))));
        if (counter)
        {
            TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED);
        }
    }
 
    do
    {
        TINFL_GET_BITS(3, r->m_final, 3);
        r->m_type = r->m_final >> 1;
        if (r->m_type == 0)
        {
            TINFL_SKIP_BITS(5, num_bits & 7);
            for (counter = 0; counter < 4; ++counter)
            {
                if (num_bits)
                    TINFL_GET_BITS(6, r->m_raw_header[counter], 8);
                else
                    TINFL_GET_BYTE(7, r->m_raw_header[counter]);
            }
            if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != (mz_uint)(0xFFFF ^ (r->m_raw_header[2] | (r->m_raw_header[3] << 8))))
            {
                TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED);
            }
            while ((counter) && (num_bits))
            {
                TINFL_GET_BITS(51, dist, 8);
                while (pOut_buf_cur >= pOut_buf_end)
                {
                    TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT);
                }
                *pOut_buf_cur++ = (mz_uint8)dist;
                counter--;
            }
            while (counter)
            {
                size_t n;
                while (pOut_buf_cur >= pOut_buf_end)
                {
                    TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT);
                }
                while (pIn_buf_cur >= pIn_buf_end)
                {
                    TINFL_CR_RETURN(38, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS);
                }
                n = MZ_MIN(MZ_MIN((size_t)(pOut_buf_end - pOut_buf_cur), (size_t)(pIn_buf_end - pIn_buf_cur)), counter);
                TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n);
                pIn_buf_cur += n;
                pOut_buf_cur += n;
                counter -= (mz_uint)n;
            }
        }
        else if (r->m_type == 3)
        {
            TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED);
        }
        else
        {
            if (r->m_type == 1)
            {
                mz_uint8 *p = r->m_tables[0].m_code_size;
                mz_uint i;
                r->m_table_sizes[0] = 288;
                r->m_table_sizes[1] = 32;
                TINFL_MEMSET(r->m_tables[1].m_code_size, 5, 32);
                for (i = 0; i <= 143; ++i)
                    *p++ = 8;
                for (; i <= 255; ++i)
                    *p++ = 9;
                for (; i <= 279; ++i)
                    *p++ = 7;
                for (; i <= 287; ++i)
                    *p++ = 8;
            }
            else
            {
                for (counter = 0; counter < 3; counter++)
                {
                    TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]);
                    r->m_table_sizes[counter] += s_min_table_sizes[counter];
                }
                MZ_CLEAR_OBJ(r->m_tables[2].m_code_size);
                for (counter = 0; counter < r->m_table_sizes[2]; counter++)
                {
                    mz_uint s;
                    TINFL_GET_BITS(14, s, 3);
                    r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (mz_uint8)s;
                }
                r->m_table_sizes[2] = 19;
            }
            for (; (int)r->m_type >= 0; r->m_type--)
            {
                int tree_next, tree_cur;
                tinfl_huff_table *pTable;
                mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16];
                pTable = &r->m_tables[r->m_type];
                MZ_CLEAR_OBJ(total_syms);
                MZ_CLEAR_OBJ(pTable->m_look_up);
                MZ_CLEAR_OBJ(pTable->m_tree);
                for (i = 0; i < r->m_table_sizes[r->m_type]; ++i)
                    total_syms[pTable->m_code_size[i]]++;
                used_syms = 0, total = 0;
                next_code[0] = next_code[1] = 0;
                for (i = 1; i <= 15; ++i)
                {
                    used_syms += total_syms[i];
                    next_code[i + 1] = (total = ((total + total_syms[i]) << 1));
                }
                if ((65536 != total) && (used_syms > 1))
                {
                    TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED);
                }
                for (tree_next = -1, sym_index = 0; sym_index < r->m_table_sizes[r->m_type]; ++sym_index)
                {
                    mz_uint rev_code = 0, l, cur_code, code_size = pTable->m_code_size[sym_index];
                    if (!code_size)
                        continue;
                    cur_code = next_code[code_size]++;
                    for (l = code_size; l > 0; l--, cur_code >>= 1)
                        rev_code = (rev_code << 1) | (cur_code & 1);
                    if (code_size <= TINFL_FAST_LOOKUP_BITS)
                    {
                        mz_int16 k = (mz_int16)((code_size << 9) | sym_index);
                        while (rev_code < TINFL_FAST_LOOKUP_SIZE)
                        {
                            pTable->m_look_up[rev_code] = k;
                            rev_code += (1 << code_size);
                        }
                        continue;
                    }
                    if (0 == (tree_cur = pTable->m_look_up[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)]))
                    {
                        pTable->m_look_up[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] = (mz_int16)tree_next;
                        tree_cur = tree_next;
                        tree_next -= 2;
                    }
                    rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1);
                    for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--)
                    {
                        tree_cur -= ((rev_code >>= 1) & 1);
                        if (!pTable->m_tree[-tree_cur - 1])
                        {
                            pTable->m_tree[-tree_cur - 1] = (mz_int16)tree_next;
                            tree_cur = tree_next;
                            tree_next -= 2;
                        }
                        else
                            tree_cur = pTable->m_tree[-tree_cur - 1];
                    }
                    tree_cur -= ((rev_code >>= 1) & 1);
                    pTable->m_tree[-tree_cur - 1] = (mz_int16)sym_index;
                }
                if (r->m_type == 2)
                {
                    for (counter = 0; counter < (r->m_table_sizes[0] + r->m_table_sizes[1]);)
                    {
                        mz_uint s;
                        TINFL_HUFF_DECODE(16, dist, &r->m_tables[2]);
                        if (dist < 16)
                        {
                            r->m_len_codes[counter++] = (mz_uint8)dist;
                            continue;
                        }
                        if ((dist == 16) && (!counter))
                        {
                            TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED);
                        }
                        num_extra = "\02\03\07"[dist - 16];
                        TINFL_GET_BITS(18, s, num_extra);
                        s += "\03\03\013"[dist - 16];
                        TINFL_MEMSET(r->m_len_codes + counter, (dist == 16) ? r->m_len_codes[counter - 1] : 0, s);
                        counter += s;
                    }
                    if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter)
                    {
                        TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED);
                    }
                    TINFL_MEMCPY(r->m_tables[0].m_code_size, r->m_len_codes, r->m_table_sizes[0]);
                    TINFL_MEMCPY(r->m_tables[1].m_code_size, r->m_len_codes + r->m_table_sizes[0], r->m_table_sizes[1]);
                }
            }
            for (;;)
            {
                mz_uint8 *pSrc;
                for (;;)
                {
                    if (((pIn_buf_end - pIn_buf_cur) < 4) || ((pOut_buf_end - pOut_buf_cur) < 2))
                    {
                        TINFL_HUFF_DECODE(23, counter, &r->m_tables[0]);
                        if (counter >= 256)
                            break;
                        while (pOut_buf_cur >= pOut_buf_end)
                        {
                            TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT);
                        }
                        *pOut_buf_cur++ = (mz_uint8)counter;
                    }
                    else
                    {
                        int sym2;
                        mz_uint code_len;
#if TINFL_USE_64BIT_BITBUF
                        if (num_bits < 30)
                        {
                            bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE32(pIn_buf_cur)) << num_bits);
                            pIn_buf_cur += 4;
                            num_bits += 32;
                        }
#else
                        if (num_bits < 15)
                        {
                            bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits);
                            pIn_buf_cur += 2;
                            num_bits += 16;
                        }
#endif
                        if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
                            code_len = sym2 >> 9;
                        else
                        {
                            code_len = TINFL_FAST_LOOKUP_BITS;
                            do
                            {
                                sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)];
                            } while (sym2 < 0);
                        }
                        counter = sym2;
                        bit_buf >>= code_len;
                        num_bits -= code_len;
                        if (counter & 256)
                            break;
 
#if !TINFL_USE_64BIT_BITBUF
                        if (num_bits < 15)
                        {
                            bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits);
                            pIn_buf_cur += 2;
                            num_bits += 16;
                        }
#endif
                        if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
                            code_len = sym2 >> 9;
                        else
                        {
                            code_len = TINFL_FAST_LOOKUP_BITS;
                            do
                            {
                                sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)];
                            } while (sym2 < 0);
                        }
                        bit_buf >>= code_len;
                        num_bits -= code_len;
 
                        pOut_buf_cur[0] = (mz_uint8)counter;
                        if (sym2 & 256)
                        {
                            pOut_buf_cur++;
                            counter = sym2;
                            break;
                        }
                        pOut_buf_cur[1] = (mz_uint8)sym2;
                        pOut_buf_cur += 2;
                    }
                }
                if ((counter &= 511) == 256)
                    break;
 
                num_extra = s_length_extra[counter - 257];
                counter = s_length_base[counter - 257];
                if (num_extra)
                {
                    mz_uint extra_bits;
                    TINFL_GET_BITS(25, extra_bits, num_extra);
                    counter += extra_bits;
                }
 
                TINFL_HUFF_DECODE(26, dist, &r->m_tables[1]);
                num_extra = s_dist_extra[dist];
                dist = s_dist_base[dist];
                if (num_extra)
                {
                    mz_uint extra_bits;
                    TINFL_GET_BITS(27, extra_bits, num_extra);
                    dist += extra_bits;
                }
 
                dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start;
                if ((dist > dist_from_out_buf_start) && (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
                {
                    TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED);
                }
 
                pSrc = pOut_buf_start + ((dist_from_out_buf_start - dist) & out_buf_size_mask);
 
                if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end)
                {
                    while (counter--)
                    {
                        while (pOut_buf_cur >= pOut_buf_end)
                        {
                            TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT);
                        }
                        *pOut_buf_cur++ = pOut_buf_start[(dist_from_out_buf_start++ - dist) & out_buf_size_mask];
                    }
                    continue;
                }
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
                else if ((counter >= 9) && (counter <= dist))
                {
                    const mz_uint8 *pSrc_end = pSrc + (counter & ~7);
                    do
                    {
#ifdef MINIZ_UNALIGNED_USE_MEMCPY
            memcpy(pOut_buf_cur, pSrc, sizeof(mz_uint32)*2);
#else
                        ((mz_uint32 *)pOut_buf_cur)[0] = ((const mz_uint32 *)pSrc)[0];
                        ((mz_uint32 *)pOut_buf_cur)[1] = ((const mz_uint32 *)pSrc)[1];
#endif
                        pOut_buf_cur += 8;
                    } while ((pSrc += 8) < pSrc_end);
                    if ((counter &= 7) < 3)
                    {
                        if (counter)
                        {
                            pOut_buf_cur[0] = pSrc[0];
                            if (counter > 1)
                                pOut_buf_cur[1] = pSrc[1];
                            pOut_buf_cur += counter;
                        }
                        continue;
                    }
                }
#endif
                while(counter>2)
                {
                    pOut_buf_cur[0] = pSrc[0];
                    pOut_buf_cur[1] = pSrc[1];
                    pOut_buf_cur[2] = pSrc[2];
                    pOut_buf_cur += 3;
                    pSrc += 3;
          counter -= 3;
                }
                if (counter > 0)
                {
                    pOut_buf_cur[0] = pSrc[0];
                    if (counter > 1)
                        pOut_buf_cur[1] = pSrc[1];
                    pOut_buf_cur += counter;
                }
            }
        }
    } while (!(r->m_final & 1));
 
    /* Ensure byte alignment and put back any bytes from the bitbuf if we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */
    /* I'm being super conservative here. A number of simplifications can be made to the byte alignment part, and the Adler32 check shouldn't ever need to worry about reading from the bitbuf now. */
    TINFL_SKIP_BITS(32, num_bits & 7);
    while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8))
    {
        --pIn_buf_cur;
        num_bits -= 8;
    }
    bit_buf &= (tinfl_bit_buf_t)((((mz_uint64)1) << num_bits) - (mz_uint64)1);
    MZ_ASSERT(!num_bits); /* if this assert fires then we've read beyond the end of non-deflate/zlib streams with following data (such as gzip streams). */
 
    if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
    {
        for (counter = 0; counter < 4; ++counter)
        {
            mz_uint s;
            if (num_bits)
                TINFL_GET_BITS(41, s, 8);
            else
                TINFL_GET_BYTE(42, s);
            r->m_z_adler32 = (r->m_z_adler32 << 8) | s;
        }
    }
    TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE);
 
    TINFL_CR_FINISH
 
common_exit:
    /* As long as we aren't telling the caller that we NEED more input to make forward progress: */
    /* Put back any bytes from the bitbuf in case we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */
    /* We need to be very careful here to NOT push back any bytes we definitely know we need to make forward progress, though, or we'll lock the caller up into an inf loop. */
    if ((status != TINFL_STATUS_NEEDS_MORE_INPUT) && (status != TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS))
    {
        while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8))
        {
            --pIn_buf_cur;
            num_bits -= 8;
        }
    }
    r->m_num_bits = num_bits;
    r->m_bit_buf = bit_buf & (tinfl_bit_buf_t)((((mz_uint64)1) << num_bits) - (mz_uint64)1);
    r->m_dist = dist;
    r->m_counter = counter;
    r->m_num_extra = num_extra;
    r->m_dist_from_out_buf_start = dist_from_out_buf_start;
    *pIn_buf_size = pIn_buf_cur - pIn_buf_next;
    *pOut_buf_size = pOut_buf_cur - pOut_buf_next;
    if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0))
    {
        const mz_uint8 *ptr = pOut_buf_next;
        size_t buf_len = *pOut_buf_size;
        mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16;
        size_t block_len = buf_len % 5552;
        while (buf_len)
        {
            for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
            {
                s1 += ptr[0], s2 += s1;
                s1 += ptr[1], s2 += s1;
                s1 += ptr[2], s2 += s1;
                s1 += ptr[3], s2 += s1;
                s1 += ptr[4], s2 += s1;
                s1 += ptr[5], s2 += s1;
                s1 += ptr[6], s2 += s1;
                s1 += ptr[7], s2 += s1;
            }
            for (; i < block_len; ++i)
                s1 += *ptr++, s2 += s1;
            s1 %= 65521U, s2 %= 65521U;
            buf_len -= block_len;
            block_len = 5552;
        }
        r->m_check_adler32 = (s2 << 16) + s1;
        if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32))
            status = TINFL_STATUS_ADLER32_MISMATCH;
    }
    return status;
}

Referenced by mz_inflate(), mz_zip_reader_extract_iter_read(), mz_zip_reader_extract_to_callback(), mz_zip_reader_extract_to_mem_no_alloc(), tinfl_decompress_mem_to_callback(), tinfl_decompress_mem_to_heap(), and tinfl_decompress_mem_to_mem().

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◆ tinfl_decompress_mem_to_callback()

int tinfl_decompress_mem_to_callback	(	const void *	pIn_buf,
		size_t *	pIn_buf_size,
		tinfl_put_buf_func_ptr	pPut_buf_func,
		void *	pPut_buf_user,
		int	flags
	)

{
    int result = 0;
    tinfl_decompressor decomp;
    mz_uint8 *pDict = (mz_uint8 *)MZ_MALLOC(TINFL_LZ_DICT_SIZE);
    size_t in_buf_ofs = 0, dict_ofs = 0;
    if (!pDict)
        return TINFL_STATUS_FAILED;
    tinfl_init(&decomp);
    for (;;)
    {
        size_t in_buf_size = *pIn_buf_size - in_buf_ofs, dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs;
        tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pIn_buf + in_buf_ofs, &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size,
                                               (flags & ~(TINFL_FLAG_HAS_MORE_INPUT | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)));
        in_buf_ofs += in_buf_size;
        if ((dst_buf_size) && (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user)))
            break;
        if (status != TINFL_STATUS_HAS_MORE_OUTPUT)
        {
            result = (status == TINFL_STATUS_DONE);
            break;
        }
        dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1);
    }
    MZ_FREE(pDict);
    *pIn_buf_size = in_buf_ofs;
    return result;
}

References MZ_FREE, MZ_MALLOC, tinfl_decompress(), TINFL_FLAG_HAS_MORE_INPUT, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF, tinfl_init, TINFL_LZ_DICT_SIZE, TINFL_STATUS_DONE, TINFL_STATUS_FAILED, and TINFL_STATUS_HAS_MORE_OUTPUT.

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◆ tinfl_decompress_mem_to_heap()

void * tinfl_decompress_mem_to_heap	(	const void *	pSrc_buf,
		size_t	src_buf_len,
		size_t *	pOut_len,
		int	flags
	)

{
    tinfl_decompressor decomp;
    void *pBuf = NULL, *pNew_buf;
    size_t src_buf_ofs = 0, out_buf_capacity = 0;
    *pOut_len = 0;
    tinfl_init(&decomp);
    for (;;)
    {
        size_t src_buf_size = src_buf_len - src_buf_ofs, dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity;
        tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf + src_buf_ofs, &src_buf_size, (mz_uint8 *)pBuf, pBuf ? (mz_uint8 *)pBuf + *pOut_len : NULL, &dst_buf_size,
                                               (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
        if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT))
        {
            MZ_FREE(pBuf);
            *pOut_len = 0;
            return NULL;
        }
        src_buf_ofs += src_buf_size;
        *pOut_len += dst_buf_size;
        if (status == TINFL_STATUS_DONE)
            break;
        new_out_buf_capacity = out_buf_capacity * 2;
        if (new_out_buf_capacity < 128)
            new_out_buf_capacity = 128;
        pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity);
        if (!pNew_buf)
        {
            MZ_FREE(pBuf);
            *pOut_len = 0;
            return NULL;
        }
        pBuf = pNew_buf;
        out_buf_capacity = new_out_buf_capacity;
    }
    return pBuf;
}

References MZ_FREE, MZ_REALLOC, tinfl_decompress(), TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF, tinfl_init, TINFL_STATUS_DONE, and TINFL_STATUS_NEEDS_MORE_INPUT.

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◆ tinfl_decompress_mem_to_mem()

size_t tinfl_decompress_mem_to_mem	(	void *	pOut_buf,
		size_t	out_buf_len,
		const void *	pSrc_buf,
		size_t	src_buf_len,
		int	flags
	)

{
    tinfl_decompressor decomp;
    tinfl_status status;
    tinfl_init(&decomp);
    status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf, &src_buf_len, (mz_uint8 *)pOut_buf, (mz_uint8 *)pOut_buf, &out_buf_len, (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
    return (status != TINFL_STATUS_DONE) ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED : out_buf_len;
}

References tinfl_decompress(), TINFL_DECOMPRESS_MEM_TO_MEM_FAILED, TINFL_FLAG_HAS_MORE_INPUT, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF, tinfl_init, and TINFL_STATUS_DONE.

Here is the call graph for this function:

◆ tinfl_decompressor_alloc()

tinfl_decompressor * tinfl_decompressor_alloc ( void )

{
    tinfl_decompressor *pDecomp = (tinfl_decompressor *)MZ_MALLOC(sizeof(tinfl_decompressor));
    if (pDecomp)
        tinfl_init(pDecomp);
    return pDecomp;
}

References MZ_MALLOC, and tinfl_init.

◆ tinfl_decompressor_free()

void tinfl_decompressor_free ( tinfl_decompressor * pDecomp )

{
    MZ_FREE(pDecomp);
}

References MZ_FREE.

Variable Documentation

◆ mz_bitmasks

const mz_uint mz_bitmasks[17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF }

static

Referenced by tdefl_compress_lz_codes().

◆ s_tdefl_large_dist_extra

const mz_uint8 s_tdefl_large_dist_extra[128]

static

Initial value:

=
    {
      0, 0, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
      12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
      13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13
    }

Referenced by tdefl_compress_lz_codes().

◆ s_tdefl_large_dist_sym

const mz_uint8 s_tdefl_large_dist_sym[128]

static

Initial value:

=
    {
      0, 0, 18, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
      26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
      28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
    }

Referenced by tdefl_compress_lz_codes(), and tdefl_record_match().

◆ s_tdefl_len_extra

const mz_uint8 s_tdefl_len_extra[256]

static

Initial value:

=
    {
      0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
      4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
      5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
      5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0
    }

Referenced by tdefl_compress_lz_codes().

◆ s_tdefl_len_sym

const mz_uint16 s_tdefl_len_sym[256]

static

Initial value:

=
    {
      257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267, 267, 268, 268, 269, 269, 269, 269, 270, 270, 270, 270, 271, 271, 271, 271, 272, 272, 272, 272,
      273, 273, 273, 273, 273, 273, 273, 273, 274, 274, 274, 274, 274, 274, 274, 274, 275, 275, 275, 275, 275, 275, 275, 275, 276, 276, 276, 276, 276, 276, 276, 276,
      277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278,
      279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280,
      281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,
      282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282,
      283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,
      284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 285
    }

Referenced by tdefl_compress_lz_codes(), and tdefl_record_match().

◆ s_tdefl_num_probes

const mz_uint s_tdefl_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 }

static

Referenced by tdefl_create_comp_flags_from_zip_params().

◆ s_tdefl_packed_code_size_syms_swizzle

mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 }

static

Referenced by tdefl_start_dynamic_block().

◆ s_tdefl_small_dist_extra

const mz_uint8 s_tdefl_small_dist_extra[512]

static

Initial value:

=
    {
      0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
      5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
      6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
      6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
      7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
      7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
      7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
      7, 7, 7, 7, 7, 7, 7, 7
    }

Referenced by tdefl_compress_lz_codes().

◆ s_tdefl_small_dist_sym

const mz_uint8 s_tdefl_small_dist_sym[512]

static

Initial value:

=
    {
      0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
      11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13,
      13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
      14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
      14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
      15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
      16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
      16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
      16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
      17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
      17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
      17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17
    }

Referenced by tdefl_compress_lz_codes(), and tdefl_record_match().

Classes

Macros

Typedefs

Enumerations

Functions

Variables

Class Documentation

◆ inflate_state

◆ tdefl_sym_freq

◆ tdefl_output_buffer

◆ mz_zip_array

◆ mz_zip_internal_state_tag

Macro Definition Documentation

◆ MZ_DELETE_FILE

◆ MZ_FCLOSE

◆ MZ_FFLUSH

◆ MZ_FILE_STAT

◆ MZ_FILE_STAT_STRUCT

◆ MZ_FOPEN

◆ MZ_FREAD

◆ MZ_FREOPEN

◆ MZ_FSEEK64

◆ MZ_FTELL64

◆ MZ_FWRITE

◆ MZ_SWAP_UINT32

◆ MZ_TOLOWER

◆ MZ_WRITE_LE16

◆ MZ_WRITE_LE32

◆ MZ_WRITE_LE64

◆ MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE

◆ MZ_ZIP_ARRAY_ELEMENT

◆ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE

◆ TDEFL_PROBE

◆ TDEFL_PUT_BITS

◆ TDEFL_RLE_PREV_CODE_SIZE

◆ TDEFL_RLE_ZERO_CODE_SIZE

◆ TINFL_CR_BEGIN

◆ TINFL_CR_FINISH

◆ TINFL_CR_RETURN

◆ TINFL_CR_RETURN_FOREVER

◆ TINFL_GET_BITS

◆ TINFL_GET_BYTE

◆ TINFL_HUFF_BITBUF_FILL

◆ TINFL_HUFF_DECODE

◆ TINFL_MEMCPY

◆ TINFL_MEMSET

◆ TINFL_NEED_BITS

◆ TINFL_SKIP_BITS

Typedef Documentation

◆ mz_validate_uint16

◆ mz_validate_uint32

◆ mz_validate_uint64

Enumeration Type Documentation

◆ anonymous enum

◆ anonymous enum

Function Documentation

◆ miniz_def_alloc_func()

◆ miniz_def_free_func()

◆ miniz_def_realloc_func()

◆ mz_adler32()

◆ mz_compress()

◆ mz_compress2()

◆ mz_compressBound()

◆ mz_crc32()

◆ mz_deflate()

◆ mz_deflateBound()

◆ mz_deflateEnd()

◆ mz_deflateInit()

◆ mz_deflateInit2()

◆ mz_deflateReset()

◆ mz_error()

◆ mz_file_read_func_stdio()

◆ mz_free()

◆ mz_inflate()

◆ mz_inflateEnd()

◆ mz_inflateInit()

◆ mz_inflateInit2()

◆ mz_inflateReset()

◆ mz_uncompress()

◆ mz_version()