1 /* ioapi.h -- IO base function header for compress/uncompress .zip
2 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
4 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
6 Modifications for Zip64 support
7 Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
9 For more info read MiniZip_info.txt
14 #define _CRT_SECURE_NO_WARNINGS
19 voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
21 if (pfilefunc->zfile_func64.zopen64_file != NULL)
22 return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
25 if (pfilefunc->zopen32_file == NULL)
27 return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
31 long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
33 if (pfilefunc->zfile_func64.zseek64_file != NULL)
34 return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
37 uLong offsetTruncated = (uLong)offset;
38 if (offsetTruncated != offset || pfilefunc->zseek32_file == NULL)
41 return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
45 ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
47 if (pfilefunc->zfile_func64.zseek64_file != NULL)
48 return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
51 if (pfilefunc->ztell32_file == NULL)
53 uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
54 if ((tell_uLong) == ((uLong)-1))
61 void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
63 p_filefunc64_32->zfile_func64.zopen64_file = NULL;
64 p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
65 p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
66 p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
67 p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
68 p_filefunc64_32->zfile_func64.ztell64_file = NULL;
69 p_filefunc64_32->zfile_func64.zseek64_file = NULL;
70 p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
71 p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
72 p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
73 p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
74 p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
79 static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
80 static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
81 static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
82 static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
83 static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
84 static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
85 static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
87 static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
90 const char* mode_fopen = NULL;
91 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
94 if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
97 if (mode & ZLIB_FILEFUNC_MODE_CREATE)
100 if ((filename!=NULL) && (mode_fopen != NULL))
101 file = fopen(filename, mode_fopen);
105 static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
108 const char* mode_fopen = NULL;
109 if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
112 if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
115 if (mode & ZLIB_FILEFUNC_MODE_CREATE)
118 if ((filename!=NULL) && (mode_fopen != NULL))
119 file = fopen64((const char*)filename, mode_fopen);
124 static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
127 ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
131 static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
134 ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
138 static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
141 ret = ftell((FILE *)stream);
146 static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
149 ret = ftello64((FILE *)stream);
153 static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
159 case ZLIB_FILEFUNC_SEEK_CUR :
160 fseek_origin = SEEK_CUR;
162 case ZLIB_FILEFUNC_SEEK_END :
163 fseek_origin = SEEK_END;
165 case ZLIB_FILEFUNC_SEEK_SET :
166 fseek_origin = SEEK_SET;
171 if (fseek((FILE *)stream, offset, fseek_origin) != 0)
176 static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
182 case ZLIB_FILEFUNC_SEEK_CUR :
183 fseek_origin = SEEK_CUR;
185 case ZLIB_FILEFUNC_SEEK_END :
186 fseek_origin = SEEK_END;
188 case ZLIB_FILEFUNC_SEEK_SET :
189 fseek_origin = SEEK_SET;
195 if(fseeko64((FILE *)stream, offset, fseek_origin) != 0)
202 static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
205 ret = fclose((FILE *)stream);
209 static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
212 ret = ferror((FILE *)stream);
216 void fill_fopen_filefunc (pzlib_filefunc_def)
217 zlib_filefunc_def* pzlib_filefunc_def;
219 pzlib_filefunc_def->zopen_file = fopen_file_func;
220 pzlib_filefunc_def->zread_file = fread_file_func;
221 pzlib_filefunc_def->zwrite_file = fwrite_file_func;
222 pzlib_filefunc_def->ztell_file = ftell_file_func;
223 pzlib_filefunc_def->zseek_file = fseek_file_func;
224 pzlib_filefunc_def->zclose_file = fclose_file_func;
225 pzlib_filefunc_def->zerror_file = ferror_file_func;
226 pzlib_filefunc_def->opaque = NULL;
229 void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
231 pzlib_filefunc_def->zopen64_file = fopen64_file_func;
232 pzlib_filefunc_def->zread_file = fread_file_func;
233 pzlib_filefunc_def->zwrite_file = fwrite_file_func;
234 pzlib_filefunc_def->ztell64_file = ftell64_file_func;
235 pzlib_filefunc_def->zseek64_file = fseek64_file_func;
236 pzlib_filefunc_def->zclose_file = fclose_file_func;
237 pzlib_filefunc_def->zerror_file = ferror_file_func;
238 pzlib_filefunc_def->opaque = NULL;