| /* ioapi.h -- IO base function header for compress/uncompress .zip |
| part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Modifications for Zip64 support |
| Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) |
| |
| For more info read MiniZip_info.txt |
| |
| */ |
| |
| #if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS))) |
| #define _CRT_SECURE_NO_WARNINGS |
| #endif |
| |
| #if defined(__APPLE__) || defined(__Fuchsia__) || defined(IOAPI_NO_64) |
| // In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions |
| #define FOPEN_FUNC(filename, mode) fopen(filename, mode) |
| #define FTELLO_FUNC(stream) ftello(stream) |
| #define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin) |
| #else |
| #define FOPEN_FUNC(filename, mode) fopen64(filename, mode) |
| #define FTELLO_FUNC(stream) ftello64(stream) |
| #define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin) |
| #endif |
| |
| |
| #include "ioapi.h" |
| |
| voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode) |
| { |
| if (pfilefunc->zfile_func64.zopen64_file != NULL) |
| return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode); |
| else |
| { |
| return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode); |
| } |
| } |
| |
| long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) |
| { |
| if (pfilefunc->zfile_func64.zseek64_file != NULL) |
| return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin); |
| else |
| { |
| uLong offsetTruncated = (uLong)offset; |
| if (offsetTruncated != offset) |
| return -1; |
| else |
| return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin); |
| } |
| } |
| |
| ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream) |
| { |
| if (pfilefunc->zfile_func64.zseek64_file != NULL) |
| return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream); |
| else |
| { |
| uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream); |
| if ((tell_uLong) == MAXU32) |
| return (ZPOS64_T)-1; |
| else |
| return tell_uLong; |
| } |
| } |
| |
| void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32) |
| { |
| p_filefunc64_32->zfile_func64.zopen64_file = NULL; |
| p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; |
| p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; |
| p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; |
| p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file; |
| p_filefunc64_32->zfile_func64.ztell64_file = NULL; |
| p_filefunc64_32->zfile_func64.zseek64_file = NULL; |
| p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file; |
| p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; |
| p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque; |
| p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file; |
| p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file; |
| } |
| |
| |
| |
| static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode)); |
| static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); |
| static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size)); |
| static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream)); |
| static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); |
| static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream)); |
| static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream)); |
| |
| static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode) |
| { |
| FILE* file = NULL; |
| const char* mode_fopen = NULL; |
| if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) |
| mode_fopen = "rb"; |
| else |
| if (mode & ZLIB_FILEFUNC_MODE_EXISTING) |
| mode_fopen = "r+b"; |
| else |
| if (mode & ZLIB_FILEFUNC_MODE_CREATE) |
| mode_fopen = "wb"; |
| |
| if ((filename!=NULL) && (mode_fopen != NULL)) |
| file = fopen(filename, mode_fopen); |
| return file; |
| } |
| |
| static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode) |
| { |
| FILE* file = NULL; |
| const char* mode_fopen = NULL; |
| if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) |
| mode_fopen = "rb"; |
| else |
| if (mode & ZLIB_FILEFUNC_MODE_EXISTING) |
| mode_fopen = "r+b"; |
| else |
| if (mode & ZLIB_FILEFUNC_MODE_CREATE) |
| mode_fopen = "wb"; |
| |
| if ((filename!=NULL) && (mode_fopen != NULL)) |
| file = FOPEN_FUNC((const char*)filename, mode_fopen); |
| return file; |
| } |
| |
| |
| static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size) |
| { |
| uLong ret; |
| ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); |
| return ret; |
| } |
| |
| static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size) |
| { |
| uLong ret; |
| ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); |
| return ret; |
| } |
| |
| static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream) |
| { |
| long ret; |
| ret = ftell((FILE *)stream); |
| return ret; |
| } |
| |
| |
| static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream) |
| { |
| ZPOS64_T ret; |
| ret = FTELLO_FUNC((FILE *)stream); |
| return ret; |
| } |
| |
| static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin) |
| { |
| int fseek_origin=0; |
| long ret; |
| switch (origin) |
| { |
| case ZLIB_FILEFUNC_SEEK_CUR : |
| fseek_origin = SEEK_CUR; |
| break; |
| case ZLIB_FILEFUNC_SEEK_END : |
| fseek_origin = SEEK_END; |
| break; |
| case ZLIB_FILEFUNC_SEEK_SET : |
| fseek_origin = SEEK_SET; |
| break; |
| default: return -1; |
| } |
| ret = 0; |
| if (fseek((FILE *)stream, offset, fseek_origin) != 0) |
| ret = -1; |
| return ret; |
| } |
| |
| static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) |
| { |
| int fseek_origin=0; |
| long ret; |
| switch (origin) |
| { |
| case ZLIB_FILEFUNC_SEEK_CUR : |
| fseek_origin = SEEK_CUR; |
| break; |
| case ZLIB_FILEFUNC_SEEK_END : |
| fseek_origin = SEEK_END; |
| break; |
| case ZLIB_FILEFUNC_SEEK_SET : |
| fseek_origin = SEEK_SET; |
| break; |
| default: return -1; |
| } |
| ret = 0; |
| |
| if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0) |
| ret = -1; |
| |
| return ret; |
| } |
| |
| |
| static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream) |
| { |
| int ret; |
| ret = fclose((FILE *)stream); |
| return ret; |
| } |
| |
| static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream) |
| { |
| int ret; |
| ret = ferror((FILE *)stream); |
| return ret; |
| } |
| |
| void fill_fopen_filefunc (pzlib_filefunc_def) |
| zlib_filefunc_def* pzlib_filefunc_def; |
| { |
| pzlib_filefunc_def->zopen_file = fopen_file_func; |
| pzlib_filefunc_def->zread_file = fread_file_func; |
| pzlib_filefunc_def->zwrite_file = fwrite_file_func; |
| pzlib_filefunc_def->ztell_file = ftell_file_func; |
| pzlib_filefunc_def->zseek_file = fseek_file_func; |
| pzlib_filefunc_def->zclose_file = fclose_file_func; |
| pzlib_filefunc_def->zerror_file = ferror_file_func; |
| pzlib_filefunc_def->opaque = NULL; |
| } |
| |
| void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def) |
| { |
| pzlib_filefunc_def->zopen64_file = fopen64_file_func; |
| pzlib_filefunc_def->zread_file = fread_file_func; |
| pzlib_filefunc_def->zwrite_file = fwrite_file_func; |
| pzlib_filefunc_def->ztell64_file = ftell64_file_func; |
| pzlib_filefunc_def->zseek64_file = fseek64_file_func; |
| pzlib_filefunc_def->zclose_file = fclose_file_func; |
| pzlib_filefunc_def->zerror_file = ferror_file_func; |
| pzlib_filefunc_def->opaque = NULL; |
| } |