ioapi.c File Reference

#include "ioapi.h"

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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)

Function Documentation

call_zopen64()

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

Definition at line 26 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);
    }
}

References zlib_filefunc64_def_s::opaque, zlib_filefunc64_32_def_s::zfile_func64, zlib_filefunc64_32_def_s::zopen32_file, and zlib_filefunc64_def_s::zopen64_file.

call_zseek64()

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

Definition at line 36 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);
    }
}

References zlib_filefunc64_def_s::opaque, zlib_filefunc64_32_def_s::zfile_func64, zlib_filefunc64_32_def_s::zseek32_file, and zlib_filefunc64_def_s::zseek64_file.

call_ztell64()

ZPOS64_T call_ztell64	(	const zlib_filefunc64_32_def *	pfilefunc,
		voidpf	filestream )

Definition at line 50 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 = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
        if ((tell_uLong) == ((uLong)-1))
            return (ZPOS64_T)-1;
        else
            return tell_uLong;
    }
}

References zlib_filefunc64_def_s::opaque, zlib_filefunc64_32_def_s::zfile_func64, zlib_filefunc64_def_s::zseek64_file, zlib_filefunc64_32_def_s::ztell32_file, and zlib_filefunc64_def_s::ztell64_file.

fclose_file_func()

static int ZCALLBACK fclose_file_func ( voidpf opaque, voidpf stream )

static

Definition at line 205 of file ioapi.c.

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

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

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ferror_file_func()

static int ZCALLBACK ferror_file_func ( voidpf opaque, voidpf stream )

static

Definition at line 212 of file ioapi.c.

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

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

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fill_fopen64_filefunc()

void fill_fopen64_filefunc

(

zlib_filefunc64_def *

pzlib_filefunc_def

)

Definition at line 232 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;
}

References fclose_file_func(), ferror_file_func(), fopen64_file_func(), fread_file_func(), fseek64_file_func(), ftell64_file_func(), fwrite_file_func(), zlib_filefunc64_def_s::opaque, zlib_filefunc64_def_s::zclose_file, zlib_filefunc64_def_s::zerror_file, zlib_filefunc64_def_s::zopen64_file, zlib_filefunc64_def_s::zread_file, zlib_filefunc64_def_s::zseek64_file, zlib_filefunc64_def_s::ztell64_file, and zlib_filefunc64_def_s::zwrite_file.

Referenced by unzOpenInternal().

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fill_fopen_filefunc()

void fill_fopen_filefunc

(

zlib_filefunc_def*

pzlib_filefunc_def

)

Definition at line 219 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;
}

References fclose_file_func(), ferror_file_func(), fopen_file_func(), fread_file_func(), fseek_file_func(), ftell_file_func(), and fwrite_file_func().

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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 64 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;
}

References zlib_filefunc64_def_s::opaque, zlib_filefunc_def_s::opaque, zlib_filefunc64_def_s::zclose_file, zlib_filefunc_def_s::zclose_file, zlib_filefunc64_def_s::zerror_file, zlib_filefunc_def_s::zerror_file, zlib_filefunc64_32_def_s::zfile_func64, zlib_filefunc64_32_def_s::zopen32_file, zlib_filefunc64_def_s::zopen64_file, zlib_filefunc_def_s::zopen_file, zlib_filefunc64_def_s::zread_file, zlib_filefunc_def_s::zread_file, zlib_filefunc64_32_def_s::zseek32_file, zlib_filefunc64_def_s::zseek64_file, zlib_filefunc_def_s::zseek_file, zlib_filefunc64_32_def_s::ztell32_file, zlib_filefunc64_def_s::ztell64_file, zlib_filefunc_def_s::ztell_file, zlib_filefunc64_def_s::zwrite_file, and zlib_filefunc_def_s::zwrite_file.

Referenced by unzOpen2().

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fopen64_file_func()

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

static

Definition at line 108 of file ioapi.c.

{
    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 = fopen64((const char*)filename, mode_fopen);
    return file;
}

References ZLIB_FILEFUNC_MODE_CREATE, ZLIB_FILEFUNC_MODE_EXISTING, ZLIB_FILEFUNC_MODE_READ, and ZLIB_FILEFUNC_MODE_READWRITEFILTER.

Referenced by fill_fopen64_filefunc().

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fopen_file_func()

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

static

Definition at line 90 of file ioapi.c.

{
    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;
}

References ZLIB_FILEFUNC_MODE_CREATE, ZLIB_FILEFUNC_MODE_EXISTING, ZLIB_FILEFUNC_MODE_READ, and ZLIB_FILEFUNC_MODE_READWRITEFILTER.

Referenced by fill_fopen_filefunc().

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fread_file_func()

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

static

Definition at line 127 of file ioapi.c.

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

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

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fseek64_file_func()

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

static

Definition at line 179 of file ioapi.c.

{
    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;
 
    if(fseeko64((FILE *)stream, offset, fseek_origin) != 0)
                        ret = -1;
 
    return ret;
}

References ZLIB_FILEFUNC_SEEK_CUR, ZLIB_FILEFUNC_SEEK_END, and ZLIB_FILEFUNC_SEEK_SET.

Referenced by fill_fopen64_filefunc().

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fseek_file_func()

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

static

Definition at line 156 of file ioapi.c.

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

References ZLIB_FILEFUNC_SEEK_CUR, ZLIB_FILEFUNC_SEEK_END, and ZLIB_FILEFUNC_SEEK_SET.

Referenced by fill_fopen_filefunc().

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ftell64_file_func()

static ZPOS64_T ZCALLBACK ftell64_file_func ( voidpf opaque, voidpf stream )

static

Definition at line 149 of file ioapi.c.

{
    ZPOS64_T ret;
    ret = ftello64((FILE *)stream);
    return ret;
}

Referenced by fill_fopen64_filefunc().

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ftell_file_func()

static long ZCALLBACK ftell_file_func ( voidpf opaque, voidpf stream )

static

Definition at line 141 of file ioapi.c.

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

Referenced by fill_fopen_filefunc().

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fwrite_file_func()

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

static

Definition at line 134 of file ioapi.c.

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

Referenced by fill_fopen64_filefunc(), and fill_fopen_filefunc().

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OF() [1/5]

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

static

OF() [2/5]

static int ZCALLBACK ferror_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