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/* 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;
}

Line No.	Rev	Author	Line
1	745	jeremybenn	`/* ioapi.c -- IO base function header for compress/uncompress .zip`
2			`files using zlib + zip or unzip API`
3
4			`Version 1.01e, February 12th, 2005`
5
6			`Copyright (C) 1998-2005 Gilles Vollant`
7			`*/`
8
9			`#include <stdio.h>`
10			`#include <stdlib.h>`
11			`#include <string.h>`
12
13			`#include "zlib.h"`
14			`#include "ioapi.h"`
15
16
17
18			`/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */`
19
20			`#ifndef SEEK_CUR`
21			`#define SEEK_CUR 1`
22			`#endif`
23
24			`#ifndef SEEK_END`
25			`#define SEEK_END 2`
26			`#endif`
27
28			`#ifndef SEEK_SET`
29			`#define SEEK_SET 0`
30			`#endif`
31
32			`voidpf ZCALLBACK fopen_file_func OF((`
33			`voidpf opaque,`
34			`const char* filename,`
35			`int mode));`
36
37			`uLong ZCALLBACK fread_file_func OF((`
38			`voidpf opaque,`
39			`voidpf stream,`
40			`void* buf,`
41			`uLong size));`
42
43			`uLong ZCALLBACK fwrite_file_func OF((`
44			`voidpf opaque,`
45			`voidpf stream,`
46			`const void* buf,`
47			`uLong size));`
48
49			`long ZCALLBACK ftell_file_func OF((`
50			`voidpf opaque,`
51			`voidpf stream));`
52
53			`long ZCALLBACK fseek_file_func OF((`
54			`voidpf opaque,`
55			`voidpf stream,`
56			`uLong offset,`
57			`int origin));`
58
59			`int ZCALLBACK fclose_file_func OF((`
60			`voidpf opaque,`
61			`voidpf stream));`
62
63			`int ZCALLBACK ferror_file_func OF((`
64			`voidpf opaque,`
65			`voidpf stream));`
66
67
68			`voidpf ZCALLBACK fopen_file_func (opaque, filename, mode)`
69			`voidpf opaque;`
70			`const char* filename;`
71			`int mode;`
72			`{`
73			`FILE* file = NULL;`
74			`const char* mode_fopen = NULL;`
75			`if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)`
76			`mode_fopen = "rb";`
77			`else`
78			`if (mode & ZLIB_FILEFUNC_MODE_EXISTING)`
79			`mode_fopen = "r+b";`
80			`else`
81			`if (mode & ZLIB_FILEFUNC_MODE_CREATE)`
82			`mode_fopen = "wb";`
83
84			`if ((filename!=NULL) && (mode_fopen != NULL))`
85			`file = fopen(filename, mode_fopen);`
86			`return file;`
87			`}`
88
89
90			`uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)`
91			`voidpf opaque;`
92			`voidpf stream;`
93			`void* buf;`
94			`uLong size;`
95			`{`
96			`uLong ret;`
97			`ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);`
98			`return ret;`
99			`}`
100
101
102			`uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)`
103			`voidpf opaque;`
104			`voidpf stream;`
105			`const void* buf;`
106			`uLong size;`
107			`{`
108			`uLong ret;`
109			`ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);`
110			`return ret;`
111			`}`
112
113			`long ZCALLBACK ftell_file_func (opaque, stream)`
114			`voidpf opaque;`
115			`voidpf stream;`
116			`{`
117			`long ret;`
118			`ret = ftell((FILE *)stream);`
119			`return ret;`
120			`}`
121
122			`long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)`
123			`voidpf opaque;`
124			`voidpf stream;`
125			`uLong offset;`
126			`int origin;`
127			`{`
128			`int fseek_origin=0;`
129			`long ret;`
130			`switch (origin)`
131			`{`
132			`case ZLIB_FILEFUNC_SEEK_CUR :`
133			`fseek_origin = SEEK_CUR;`
134			`break;`
135			`case ZLIB_FILEFUNC_SEEK_END :`
136			`fseek_origin = SEEK_END;`
137			`break;`
138			`case ZLIB_FILEFUNC_SEEK_SET :`
139			`fseek_origin = SEEK_SET;`
140			`break;`
141			`default: return -1;`
142			`}`
143			`ret = 0;`
144			`fseek((FILE *)stream, offset, fseek_origin);`
145			`return ret;`
146			`}`
147
148			`int ZCALLBACK fclose_file_func (opaque, stream)`
149			`voidpf opaque;`
150			`voidpf stream;`
151			`{`
152			`int ret;`
153			`ret = fclose((FILE *)stream);`
154			`return ret;`
155			`}`
156
157			`int ZCALLBACK ferror_file_func (opaque, stream)`
158			`voidpf opaque;`
159			`voidpf stream;`
160			`{`
161			`int ret;`
162			`ret = ferror((FILE *)stream);`
163			`return ret;`
164			`}`
165
166			`void fill_fopen_filefunc (pzlib_filefunc_def)`
167			`zlib_filefunc_def* pzlib_filefunc_def;`
168			`{`
169			`pzlib_filefunc_def->zopen_file = fopen_file_func;`
170			`pzlib_filefunc_def->zread_file = fread_file_func;`
171			`pzlib_filefunc_def->zwrite_file = fwrite_file_func;`
172			`pzlib_filefunc_def->ztell_file = ftell_file_func;`
173			`pzlib_filefunc_def->zseek_file = fseek_file_func;`
174			`pzlib_filefunc_def->zclose_file = fclose_file_func;`
175			`pzlib_filefunc_def->zerror_file = ferror_file_func;`
176			`pzlib_filefunc_def->opaque = NULL;`
177			`}`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [zlib/] [contrib/] [minizip/] [ioapi.c] - Blame information for rev 769