diff options
Diffstat (limited to 'zlib/contrib/minizip/ioapi.c')
| -rw-r--r-- | zlib/contrib/minizip/ioapi.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/zlib/contrib/minizip/ioapi.c b/zlib/contrib/minizip/ioapi.c new file mode 100644 index 0000000..7f5c191 --- /dev/null +++ b/zlib/contrib/minizip/ioapi.c @@ -0,0 +1,247 @@ +/* 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; +} |