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Contents of /xoonips/AL/ioapi.c
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Revision 1.1 -
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Thu Feb 10 02:10:21 2005 UTC
(19 years ago)
by youi
Branch: MAIN
CVS Tags: mv_to_sourceforge_20050217, AL_PORTING, MergePnt_20051116, REL20051226, XOONIPS_RC1, REL20060323, tag20060615, tag20070307current, tag20061115, MergePnt_20051220, tag20061130, merge_to_20060605, tag20070307, REL20060213, RELENG_2_0_0a_RELEASE, RELEASE_1_0_0, RELEASE_1_0_1, tag20060622, merge_to_20060411, HEAD
Branch point for: XOONIPS_STABLE_32, XOONIPS_STABLE, XOONIPS_STABLE_3, XOONIPS_STABLE_2
File MIME type: text/x-csrc
initial version
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/* ioapi.c -- IO base function header for compress/uncompress .zip |
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files using zlib + zip or unzip API |
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|
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Version 1.00, September 10th, 2003 |
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|
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Copyright (C) 1998-2003 Gilles Vollant |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "zlib.h" |
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#include "ioapi.h" |
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/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ |
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|
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#ifndef SEEK_CUR |
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#define SEEK_CUR 1 |
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#endif |
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|
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#ifndef SEEK_END |
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#define SEEK_END 2 |
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#endif |
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|
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#ifndef SEEK_SET |
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#define SEEK_SET 0 |
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#endif |
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|
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voidpf ZCALLBACK fopen_file_func OF(( |
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voidpf opaque, |
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const char* filename, |
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int mode)); |
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|
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uLong ZCALLBACK fread_file_func OF(( |
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voidpf opaque, |
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voidpf stream, |
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void* buf, |
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uLong size)); |
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|
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uLong ZCALLBACK fwrite_file_func OF(( |
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voidpf opaque, |
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voidpf stream, |
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const void* buf, |
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uLong size)); |
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|
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long ZCALLBACK ftell_file_func OF(( |
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voidpf opaque, |
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voidpf stream)); |
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|
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long ZCALLBACK fseek_file_func OF(( |
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voidpf opaque, |
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voidpf stream, |
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uLong offset, |
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int origin)); |
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|
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int ZCALLBACK fclose_file_func OF(( |
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voidpf opaque, |
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voidpf stream)); |
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|
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int ZCALLBACK ferror_file_func OF(( |
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voidpf opaque, |
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voidpf stream)); |
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|
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voidpf ZCALLBACK fopen_file_func (opaque, filename, mode) |
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voidpf opaque; |
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const char* filename; |
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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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|
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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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|
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|
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uLong ZCALLBACK fread_file_func (opaque, stream, buf, size) |
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voidpf opaque; |
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voidpf stream; |
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void* buf; |
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uLong size; |
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{ |
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uLong ret; |
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ret = fread(buf, 1, (size_t)size, (FILE *)stream); |
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return ret; |
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} |
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|
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|
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uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size) |
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voidpf opaque; |
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voidpf stream; |
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const void* buf; |
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uLong size; |
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{ |
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uLong ret; |
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ret = fwrite(buf, 1, (size_t)size, (FILE *)stream); |
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return ret; |
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} |
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|
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long ZCALLBACK ftell_file_func (opaque, stream) |
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voidpf opaque; |
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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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|
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long ZCALLBACK fseek_file_func (opaque, stream, offset, origin) |
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voidpf opaque; |
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voidpf stream; |
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uLong offset; |
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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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fseek((FILE *)stream, offset, fseek_origin); |
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return ret; |
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} |
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|
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int ZCALLBACK fclose_file_func (opaque, stream) |
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voidpf opaque; |
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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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|
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int ZCALLBACK ferror_file_func (opaque, stream) |
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voidpf opaque; |
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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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|
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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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