/* 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(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; }