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ca112294b8
.. from zlib-1.2.7/contrib/minizip/ The original source was minizip 0.15beta from 1998. This update brings zip64 support (untested) and cleaner code. Furthermore, updates to future minizip should be much easier now, as my changes to the original source files from minizip are quite small. To make diffing to upstream minizip-src easier, I added the minizip source as exceptions in the astyle-scripts and left them in their own directory. Two custom functions from idSoftware - unzSetCurrentFileInfoPosition() and unzGetCurrentFileInfoPosition() - aren't needed anymore as minizip 1.1 has functions that do the same.
250 lines
8.1 KiB
C
250 lines
8.1 KiB
C
/*
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this is from zlib-1.2.7/contrib/minizip/
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ioapi.h -- IO base function header for compress/uncompress .zip
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part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
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Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
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Modifications for Zip64 support
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Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
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For more info read MiniZip_info.txt
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*/
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#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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#if defined(__APPLE__) || defined(IOAPI_NO_64)
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// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
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#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
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#define FTELLO_FUNC(stream) ftello(stream)
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#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
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#else
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#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
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#define FTELLO_FUNC(stream) ftello64(stream)
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#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
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#endif
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#include "ioapi.h"
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voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
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{
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if (pfilefunc->zfile_func64.zopen64_file != NULL)
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return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
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else
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{
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return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
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}
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}
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long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
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{
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if (pfilefunc->zfile_func64.zseek64_file != NULL)
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return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
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else
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{
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uLong offsetTruncated = (uLong)offset;
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if (offsetTruncated != offset)
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return -1;
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else
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return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
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}
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}
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ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
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{
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if (pfilefunc->zfile_func64.zseek64_file != NULL)
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return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
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else
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{
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uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
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if ((tell_uLong) == MAXU32)
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return (ZPOS64_T)-1;
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else
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return tell_uLong;
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}
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}
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void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
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{
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p_filefunc64_32->zfile_func64.zopen64_file = NULL;
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p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
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p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
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p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
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p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
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p_filefunc64_32->zfile_func64.ztell64_file = NULL;
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p_filefunc64_32->zfile_func64.zseek64_file = NULL;
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p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
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p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
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p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
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p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
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p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
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}
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static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
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static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
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static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
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static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
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static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
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static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
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static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
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static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
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{
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FILE* file = NULL;
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const char* mode_fopen = NULL;
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if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
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mode_fopen = "rb";
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else
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if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
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mode_fopen = "r+b";
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else
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if (mode & ZLIB_FILEFUNC_MODE_CREATE)
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mode_fopen = "wb";
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if ((filename!=NULL) && (mode_fopen != NULL))
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file = fopen(filename, mode_fopen);
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return file;
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}
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static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
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{
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FILE* file = NULL;
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const char* mode_fopen = NULL;
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if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
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mode_fopen = "rb";
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else
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if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
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mode_fopen = "r+b";
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else
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if (mode & ZLIB_FILEFUNC_MODE_CREATE)
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mode_fopen = "wb";
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if ((filename!=NULL) && (mode_fopen != NULL))
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file = FOPEN_FUNC((const char*)filename, mode_fopen);
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return file;
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}
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static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
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{
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uLong ret;
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ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
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return ret;
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}
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static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
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{
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uLong ret;
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ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
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return ret;
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}
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static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
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{
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long ret;
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ret = ftell((FILE *)stream);
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return ret;
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}
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static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
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{
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ZPOS64_T ret;
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ret = FTELLO_FUNC((FILE *)stream);
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return ret;
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}
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static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
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{
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int fseek_origin=0;
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long ret;
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switch (origin)
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{
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case ZLIB_FILEFUNC_SEEK_CUR :
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fseek_origin = SEEK_CUR;
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break;
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case ZLIB_FILEFUNC_SEEK_END :
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fseek_origin = SEEK_END;
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break;
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case ZLIB_FILEFUNC_SEEK_SET :
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fseek_origin = SEEK_SET;
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break;
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default: return -1;
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}
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ret = 0;
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if (fseek((FILE *)stream, offset, fseek_origin) != 0)
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ret = -1;
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return ret;
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}
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static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
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{
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int fseek_origin=0;
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long ret;
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switch (origin)
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{
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case ZLIB_FILEFUNC_SEEK_CUR :
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fseek_origin = SEEK_CUR;
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break;
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case ZLIB_FILEFUNC_SEEK_END :
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fseek_origin = SEEK_END;
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break;
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case ZLIB_FILEFUNC_SEEK_SET :
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fseek_origin = SEEK_SET;
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break;
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default: return -1;
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}
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ret = 0;
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if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
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ret = -1;
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return ret;
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}
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static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
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{
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int ret;
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ret = fclose((FILE *)stream);
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return ret;
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}
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static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
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{
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int ret;
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ret = ferror((FILE *)stream);
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return ret;
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}
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void fill_fopen_filefunc (pzlib_filefunc_def)
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zlib_filefunc_def* pzlib_filefunc_def;
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{
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pzlib_filefunc_def->zopen_file = fopen_file_func;
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pzlib_filefunc_def->zread_file = fread_file_func;
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pzlib_filefunc_def->zwrite_file = fwrite_file_func;
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pzlib_filefunc_def->ztell_file = ftell_file_func;
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pzlib_filefunc_def->zseek_file = fseek_file_func;
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pzlib_filefunc_def->zclose_file = fclose_file_func;
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pzlib_filefunc_def->zerror_file = ferror_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
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{
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pzlib_filefunc_def->zopen64_file = fopen64_file_func;
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pzlib_filefunc_def->zread_file = fread_file_func;
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pzlib_filefunc_def->zwrite_file = fwrite_file_func;
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pzlib_filefunc_def->ztell64_file = ftell64_file_func;
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pzlib_filefunc_def->zseek64_file = fseek64_file_func;
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pzlib_filefunc_def->zclose_file = fclose_file_func;
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pzlib_filefunc_def->zerror_file = ferror_file_func;
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pzlib_filefunc_def->opaque = NULL;
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}
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