ioapi.c File Reference

#include "ioapi.h"

Include dependency graph for ioapi.c:

Go to the source code of this file.

Macros
#define	FOPEN_FUNC(filename, mode)   fopen64(filename, mode)
#define	FTELLO_FUNC(stream)   ftello64(stream)
#define	FSEEKO_FUNC(stream, offset, origin)   fseeko64(stream, offset, origin)

Functions
voidpf	call_zopen64 (const zlib_filefunc64_32_def *pfilefunc, const void *filename, int mode)
long	call_zseek64 (const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, ZPOS64_T offset, int origin)
ZPOS64_T	call_ztell64 (const zlib_filefunc64_32_def *pfilefunc, voidpf filestream)
void	fill_zlib_filefunc64_32_def_from_filefunc32 (zlib_filefunc64_32_def *p_filefunc64_32, const zlib_filefunc_def *p_filefunc32)
static voidpf ZCALLBACK fopen_file_func	OF ((voidpf opaque, const char *filename, int mode))
static uLong ZCALLBACK fread_file_func	OF ((voidpf opaque, voidpf stream, void *buf, uLong size))
static uLong ZCALLBACK fwrite_file_func	OF ((voidpf opaque, voidpf stream, const void *buf, uLong size))
static ZPOS64_T ZCALLBACK ftell64_file_func	OF ((voidpf opaque, voidpf stream))
static long ZCALLBACK fseek64_file_func	OF ((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin))
static voidpf ZCALLBACK	fopen_file_func (voidpf opaque, const char *filename, int mode)
static voidpf ZCALLBACK	fopen64_file_func (voidpf opaque, const void *filename, int mode)
static uLong ZCALLBACK	fread_file_func (voidpf opaque, voidpf stream, void *buf, uLong size)
static uLong ZCALLBACK	fwrite_file_func (voidpf opaque, voidpf stream, const void *buf, uLong size)
static long ZCALLBACK	ftell_file_func (voidpf opaque, voidpf stream)
static ZPOS64_T ZCALLBACK	ftell64_file_func (voidpf opaque, voidpf stream)
static long ZCALLBACK	fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
static long ZCALLBACK	fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
static int ZCALLBACK	fclose_file_func (voidpf opaque, voidpf stream)
static int ZCALLBACK	ferror_file_func (voidpf opaque, voidpf stream)
void	fill_fopen_filefunc (zlib_filefunc_def *pzlib_filefunc_def)
void	fill_fopen64_filefunc (zlib_filefunc64_def *pzlib_filefunc_def)

Macro Definition Documentation

FOPEN_FUNC

#define FOPEN_FUNC	(		filename,
			mode
	)		fopen64(filename, mode)

Definition at line 23 of file ioapi.c.

FSEEKO_FUNC

#define FSEEKO_FUNC	(		stream,
			offset,
			origin
	)		fseeko64(stream, offset, origin)

Definition at line 25 of file ioapi.c.

FTELLO_FUNC

#define FTELLO_FUNC

(

stream

)

ftello64(stream)

Definition at line 24 of file ioapi.c.

Function Documentation

call_zopen64()

voidpf call_zopen64	(	const zlib_filefunc64_32_def *	pfilefunc,
		const void *	filename,
		int	mode
	)

Definition at line 31 of file ioapi.c.

{
    if (pfilefunc->zfile_func64.zopen64_file != NULL)
        return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
    else
    {
        return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
    }
}

call_zseek64()

long call_zseek64	(	const zlib_filefunc64_32_def *	pfilefunc,
		voidpf	filestream,
		ZPOS64_T	offset,
		int	origin
	)

Definition at line 41 of file ioapi.c.

{
    if (pfilefunc->zfile_func64.zseek64_file != NULL)
        return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
    else
    {
        uLong offsetTruncated = (uLong)offset;
        if (offsetTruncated != offset)
            return -1;
        else
            return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
    }
}

call_ztell64()

ZPOS64_T call_ztell64	(	const zlib_filefunc64_32_def *	pfilefunc,
		voidpf	filestream
	)

Definition at line 55 of file ioapi.c.

{
    if (pfilefunc->zfile_func64.zseek64_file != NULL)
        return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
    else
    {
        uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
        if ((tell_uLong) == MAXU32)
            return (ZPOS64_T)-1;
        else
            return tell_uLong;
    }
}

fclose_file_func()

static int ZCALLBACK fclose_file_func ( voidpf  opaque, voidpf  stream  )

static

Definition at line 219 of file ioapi.c.

{
    int ret;
    (void)opaque;
    ret = fclose((FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

ferror_file_func()

static int ZCALLBACK ferror_file_func ( voidpf  opaque, voidpf  stream  )

static

Definition at line 227 of file ioapi.c.

{
    int ret;
    (void)opaque;
    ret = ferror((FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

fill_fopen64_filefunc()

void fill_fopen64_filefunc

(

zlib_filefunc64_def *

pzlib_filefunc_def

)

Definition at line 248 of file ioapi.c.

{
    pzlib_filefunc_def->zopen64_file = fopen64_file_func;
    pzlib_filefunc_def->zread_file = fread_file_func;
    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
    pzlib_filefunc_def->ztell64_file = ftell64_file_func;
    pzlib_filefunc_def->zseek64_file = fseek64_file_func;
    pzlib_filefunc_def->zclose_file = fclose_file_func;
    pzlib_filefunc_def->zerror_file = ferror_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

Referenced by unzOpenInternal(), and zipOpen3().

fill_fopen_filefunc()

void fill_fopen_filefunc

(

zlib_filefunc_def*

pzlib_filefunc_def

)

Definition at line 235 of file ioapi.c.

{
    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;
}

fill_zlib_filefunc64_32_def_from_filefunc32()

void fill_zlib_filefunc64_32_def_from_filefunc32	(	zlib_filefunc64_32_def *	p_filefunc64_32,
		const zlib_filefunc_def *	p_filefunc32
	)

Definition at line 70 of file ioapi.c.

{
    p_filefunc64_32->zfile_func64.zopen64_file = NULL;
    p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
    p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
    p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
    p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
    p_filefunc64_32->zfile_func64.ztell64_file = NULL;
    p_filefunc64_32->zfile_func64.zseek64_file = NULL;
    p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
    p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
    p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
    p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
    p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
}

Referenced by unzOpen2(), and zipOpen2().

fopen64_file_func()

static voidpf ZCALLBACK fopen64_file_func ( voidpf  opaque, const void *  filename, int  mode  )

static

Definition at line 115 of file ioapi.c.

{
    FILE* file = NULL;
    const char* mode_fopen = NULL;
    (void)opaque;
    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_FUNC((const char*)filename, mode_fopen);
    return file;
}

Referenced by fill_fopen64_filefunc().

fopen_file_func()

static voidpf ZCALLBACK fopen_file_func ( voidpf  opaque, const char *  filename, int  mode  )

static

Definition at line 96 of file ioapi.c.

{
    FILE* file = NULL;
    const char* mode_fopen = NULL;
    (void)opaque;
    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;
}

Referenced by fill_fopen_filefunc().

fread_file_func()

static uLong ZCALLBACK fread_file_func ( voidpf  opaque, voidpf  stream, void *  buf, uLong  size  )

static

Definition at line 135 of file ioapi.c.

{
    uLong ret;
    (void)opaque;
    ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

fseek64_file_func()

static long ZCALLBACK fseek64_file_func ( voidpf  opaque, voidpf  stream, ZPOS64_T  offset, int  origin  )

static

Definition at line 192 of file ioapi.c.

{
    int fseek_origin=0;
    long ret;
    (void)opaque;
    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;
 
    if(FSEEKO_FUNC((FILE *)stream, (z_off_t)offset, fseek_origin) != 0)
                        ret = -1;
 
    return ret;
}

Referenced by fill_fopen64_filefunc().

fseek_file_func()

static long ZCALLBACK fseek_file_func ( voidpf  opaque, voidpf  stream, uLong  offset, int  origin  )

static

Definition at line 168 of file ioapi.c.

{
    int fseek_origin=0;
    long ret;
    (void)opaque;
    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;
    if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
        ret = -1;
    return ret;
}

Referenced by fill_fopen_filefunc().

ftell64_file_func()

static ZPOS64_T ZCALLBACK ftell64_file_func ( voidpf  opaque, voidpf  stream  )

static

Definition at line 160 of file ioapi.c.

{
    ZPOS64_T ret;
    (void)opaque;
    ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc().

ftell_file_func()

static long ZCALLBACK ftell_file_func ( voidpf  opaque, voidpf  stream  )

static

Definition at line 151 of file ioapi.c.

{
    long ret;
    (void)opaque;
    ret = ftell((FILE *)stream);
    return ret;
}

Referenced by fill_fopen_filefunc().

fwrite_file_func()

static uLong ZCALLBACK fwrite_file_func ( voidpf  opaque, voidpf  stream, const void *  buf, uLong  size  )

static

Definition at line 143 of file ioapi.c.

{
    uLong ret;
    (void)opaque;
    ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

OF() [1/5]

static voidpf ZCALLBACK fopen_file_func OF ( (voidpf opaque, const char *filename, int mode)  )

static

OF() [2/5]

static ZPOS64_T ZCALLBACK ftell64_file_func OF ( (voidpf opaque, voidpf stream)  )

static

OF() [3/5]

static uLong ZCALLBACK fwrite_file_func OF ( (voidpf opaque, voidpf stream, const void *buf, uLong size)  )

static

OF() [4/5]

static uLong ZCALLBACK fread_file_func OF ( (voidpf opaque, voidpf stream, void *buf, uLong size)  )

static

OF() [5/5]

static long ZCALLBACK fseek64_file_func OF ( (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)  )

static