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| author | Gentoo <installgentoo@endianness.com> | 2021-03-27 10:36:05 +1100 |
|---|---|---|
| committer | Gentoo <installgentoo@endianness.com> | 2021-03-27 10:36:05 +1100 |
| commit | 0349c6d6572f59770898d3f40287ebdcd2f8ed30 (patch) | |
| tree | 4f55d594e5343a7d4f4e6d4dea34d9c35caa0b99 /source/unzip/ioapi.c | |
| download | YetAnotherModLoader-master.tar.gz YetAnotherModLoader-master.tar.bz2 YetAnotherModLoader-master.zip | |
Diffstat (limited to 'source/unzip/ioapi.c')
| -rw-r--r-- | source/unzip/ioapi.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/source/unzip/ioapi.c b/source/unzip/ioapi.c new file mode 100644 index 0000000..7f20c18 --- /dev/null +++ b/source/unzip/ioapi.c @@ -0,0 +1,177 @@ +/* ioapi.c -- IO base function header for compress/uncompress .zip
+ files using zlib + zip or unzip API
+
+ Version 1.01e, February 12th, 2005
+
+ Copyright (C) 1998-2005 Gilles Vollant
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+
+
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+#ifndef SEEK_CUR
+#define SEEK_CUR 1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END 2
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#endif
+
+voidpf ZCALLBACK fopen_file_func OF((
+ voidpf opaque,
+ const char* filename,
+ int mode));
+
+uLong ZCALLBACK fread_file_func OF((
+ voidpf opaque,
+ voidpf stream,
+ void* buf,
+ uLong size));
+
+uLong ZCALLBACK fwrite_file_func OF((
+ voidpf opaque,
+ voidpf stream,
+ const void* buf,
+ uLong size));
+
+long ZCALLBACK ftell_file_func OF((
+ voidpf opaque,
+ voidpf stream));
+
+long ZCALLBACK fseek_file_func OF((
+ voidpf opaque,
+ voidpf stream,
+ uLong offset,
+ int origin));
+
+int ZCALLBACK fclose_file_func OF((
+ voidpf opaque,
+ voidpf stream));
+
+int ZCALLBACK ferror_file_func OF((
+ voidpf opaque,
+ voidpf stream));
+
+
+voidpf ZCALLBACK fopen_file_func (opaque, filename, mode)
+ 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;
+}
+
+
+uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)
+ voidpf opaque;
+ voidpf stream;
+ void* buf;
+ uLong size;
+{
+ uLong ret;
+ ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+ return ret;
+}
+
+
+uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)
+ voidpf opaque;
+ voidpf stream;
+ const void* buf;
+ uLong size;
+{
+ uLong ret;
+ ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+ return ret;
+}
+
+long ZCALLBACK ftell_file_func (opaque, stream)
+ voidpf opaque;
+ voidpf stream;
+{
+ long ret;
+ ret = ftell((FILE *)stream);
+ return ret;
+}
+
+long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)
+ 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;
+ fseek((FILE *)stream, offset, fseek_origin);
+ return ret;
+}
+
+int ZCALLBACK fclose_file_func (opaque, stream)
+ voidpf opaque;
+ voidpf stream;
+{
+ int ret;
+ ret = fclose((FILE *)stream);
+ return ret;
+}
+
+int ZCALLBACK ferror_file_func (opaque, stream)
+ 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;
+}
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