iowin32.c File Reference

#include <stdlib.h>
#include "zlib.h"
#include "ioapi.h"
#include "iowin32.h"

Include dependency graph for iowin32.c:

Go to the source code of this file.

Classes
struct	WIN32FILE_IOWIN

Macros
#define	INVALID_HANDLE_VALUE   (0xFFFFFFFF)
#define	INVALID_SET_FILE_POINTER   ((DWORD)-1)

Functions
voidpf ZCALLBACK win32_open_file_func	OF ((voidpf opaque, const char *filename, int mode))
uLong ZCALLBACK win32_read_file_func	OF ((voidpf opaque, voidpf stream, void *buf, uLong size))
uLong ZCALLBACK win32_write_file_func	OF ((voidpf opaque, voidpf stream, const void *buf, uLong size))
ZPOS64_T ZCALLBACK win32_tell64_file_func	OF ((voidpf opaque, voidpf stream))
long ZCALLBACK win32_seek64_file_func	OF ((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin))
static void	win32_translate_open_mode (int mode, DWORD *lpdwDesiredAccess, DWORD *lpdwCreationDisposition, DWORD *lpdwShareMode, DWORD *lpdwFlagsAndAttributes)
static voidpf	win32_build_iowin (HANDLE hFile)
voidpf ZCALLBACK	win32_open64_file_func (voidpf opaque, const void *filename, int mode)
voidpf ZCALLBACK	win32_open64_file_funcA (voidpf opaque, const void *filename, int mode)
voidpf ZCALLBACK	win32_open64_file_funcW (voidpf opaque, const void *filename, int mode)
voidpf ZCALLBACK	win32_open_file_func (voidpf opaque, const char *filename, int mode)
uLong ZCALLBACK	win32_read_file_func (voidpf opaque, voidpf stream, void *buf, uLong size)
uLong ZCALLBACK	win32_write_file_func (voidpf opaque, voidpf stream, const void *buf, uLong size)
static BOOL	MySetFilePointerEx (HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod)
long ZCALLBACK	win32_tell_file_func (voidpf opaque, voidpf stream)
ZPOS64_T ZCALLBACK	win32_tell64_file_func (voidpf opaque, voidpf stream)
long ZCALLBACK	win32_seek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
long ZCALLBACK	win32_seek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
int ZCALLBACK	win32_close_file_func (voidpf opaque, voidpf stream)
int ZCALLBACK	win32_error_file_func (voidpf opaque, voidpf stream)
void	fill_win32_filefunc (zlib_filefunc_def *pzlib_filefunc_def)
void	fill_win32_filefunc64 (zlib_filefunc64_def *pzlib_filefunc_def)
void	fill_win32_filefunc64A (zlib_filefunc64_def *pzlib_filefunc_def)
void	fill_win32_filefunc64W (zlib_filefunc64_def *pzlib_filefunc_def)

Macro Definition Documentation

INVALID_HANDLE_VALUE

#define INVALID_HANDLE_VALUE   (0xFFFFFFFF)

Definition at line 21 of file iowin32.c.

INVALID_SET_FILE_POINTER

#define INVALID_SET_FILE_POINTER   ((DWORD)-1)

Definition at line 25 of file iowin32.c.

Function Documentation

fill_win32_filefunc()

void fill_win32_filefunc

(

zlib_filefunc_def *

pzlib_filefunc_def

)

Definition at line 414 of file iowin32.c.

{
    pzlib_filefunc_def->zopen_file = win32_open_file_func;
    pzlib_filefunc_def->zread_file = win32_read_file_func;
    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
    pzlib_filefunc_def->ztell_file = win32_tell_file_func;
    pzlib_filefunc_def->zseek_file = win32_seek_file_func;
    pzlib_filefunc_def->zclose_file = win32_close_file_func;
    pzlib_filefunc_def->zerror_file = win32_error_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

fill_win32_filefunc64()

void fill_win32_filefunc64

(

zlib_filefunc64_def *

pzlib_filefunc_def

)

Definition at line 426 of file iowin32.c.

{
    pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
    pzlib_filefunc_def->zread_file = win32_read_file_func;
    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
    pzlib_filefunc_def->zclose_file = win32_close_file_func;
    pzlib_filefunc_def->zerror_file = win32_error_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

fill_win32_filefunc64A()

void fill_win32_filefunc64A

(

zlib_filefunc64_def *

pzlib_filefunc_def

)

Definition at line 439 of file iowin32.c.

{
    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
    pzlib_filefunc_def->zread_file = win32_read_file_func;
    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
    pzlib_filefunc_def->zclose_file = win32_close_file_func;
    pzlib_filefunc_def->zerror_file = win32_error_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

fill_win32_filefunc64W()

void fill_win32_filefunc64W

(

zlib_filefunc64_def *

pzlib_filefunc_def

)

Definition at line 452 of file iowin32.c.

{
    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
    pzlib_filefunc_def->zread_file = win32_read_file_func;
    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
    pzlib_filefunc_def->zclose_file = win32_close_file_func;
    pzlib_filefunc_def->zerror_file = win32_error_file_func;
    pzlib_filefunc_def->opaque = NULL;
}

Referenced by init_zlib().

MySetFilePointerEx()

static BOOL MySetFilePointerEx ( HANDLE  hFile, LARGE_INTEGER  pos, LARGE_INTEGER *  newPos, DWORD  dwMoveMethod  )

static

Definition at line 241 of file iowin32.c.

{
#ifdef IOWIN32_USING_WINRT_API
    return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
#else
    LONG lHigh = pos.HighPart;
    DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
    BOOL fOk = TRUE;
    if (dwNewPos == 0xFFFFFFFF)
        if (GetLastError() != NO_ERROR)
            fOk = FALSE;
    if ((newPos != NULL) && (fOk))
    {
        newPos->LowPart = dwNewPos;
        newPos->HighPart = lHigh;
    }
    return fOk;
#endif
}

Referenced by win32_seek64_file_func(), win32_seek_file_func(), win32_tell64_file_func(), and win32_tell_file_func().

OF() [1/5]

voidpf ZCALLBACK win32_open_file_func OF

(

(voidpf opaque, const char *filename, int mode)

)

OF() [2/5]

uLong ZCALLBACK win32_read_file_func OF

(

(voidpf opaque, voidpf stream, void *buf, uLong size)

)

OF() [3/5]

uLong ZCALLBACK win32_write_file_func OF

(

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

)

OF() [4/5]

ZPOS64_T ZCALLBACK win32_tell64_file_func OF

(

(voidpf opaque, voidpf stream)

)

OF() [5/5]

long ZCALLBACK win32_seek64_file_func OF

(

(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)

)

win32_build_iowin()

static voidpf win32_build_iowin ( HANDLE  hFile )

static

Definition at line 77 of file iowin32.c.

{
    voidpf ret=NULL;

    if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
    {
        WIN32FILE_IOWIN w32fiow;
        w32fiow.hf = hFile;
        w32fiow.error = 0;
        ret = malloc(sizeof(WIN32FILE_IOWIN));

        if (ret==NULL)
            CloseHandle(hFile);
        else
            *((WIN32FILE_IOWIN*)ret) = w32fiow;
    }
    return ret;
}

Referenced by win32_open64_file_func(), win32_open64_file_funcA(), win32_open64_file_funcW(), and win32_open_file_func().

win32_close_file_func()

int ZCALLBACK win32_close_file_func	(	voidpf	opaque,
		voidpf	stream
	)

Definition at line 386 of file iowin32.c.

{
    int ret=-1;

    if (stream!=NULL)
    {
        HANDLE hFile;
        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
        if (hFile != NULL)
        {
            CloseHandle(hFile);
            ret=0;
        }
        free(stream);
    }
    return ret;
}

Referenced by fill_win32_filefunc(), fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().

win32_error_file_func()

int ZCALLBACK win32_error_file_func	(	voidpf	opaque,
		voidpf	stream
	)

Definition at line 404 of file iowin32.c.

{
    int ret=-1;
    if (stream!=NULL)
    {
        ret = ((WIN32FILE_IOWIN*)stream) -> error;
    }
    return ret;
}

Referenced by fill_win32_filefunc(), fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().

win32_open64_file_func()

voidpf ZCALLBACK win32_open64_file_func	(	voidpf	opaque,
		const void *	filename,
		int	mode
	)

Definition at line 96 of file iowin32.c.

{
    //const char* mode_fopen = NULL;
    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
    HANDLE hFile = NULL;

    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);

#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
    {
        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
    }
#endif
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif

    return win32_build_iowin(hFile);
}

Referenced by fill_win32_filefunc64().

win32_open64_file_funcA()

voidpf ZCALLBACK win32_open64_file_funcA	(	voidpf	opaque,
		const void *	filename,
		int	mode
	)

Definition at line 125 of file iowin32.c.

{
    //const char* mode_fopen = NULL;
    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
    HANDLE hFile = NULL;

    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);

#ifdef IOWIN32_USING_WINRT_API
    if ((filename!=NULL) && (dwDesiredAccess != 0))
    {
        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
    }
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif

    return win32_build_iowin(hFile);
}

Referenced by fill_win32_filefunc64A().

win32_open64_file_funcW()

voidpf ZCALLBACK win32_open64_file_funcW	(	voidpf	opaque,
		const void *	filename,
		int	mode
	)

Definition at line 149 of file iowin32.c.

{
    //const char* mode_fopen = NULL;
    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
    HANDLE hFile = NULL;

    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);

#ifdef IOWIN32_USING_WINRT_API
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif

    return win32_build_iowin(hFile);
}

Referenced by fill_win32_filefunc64W().

win32_open_file_func()

voidpf ZCALLBACK win32_open_file_func	(	voidpf	opaque,
		const char *	filename,
		int	mode
	)

Definition at line 169 of file iowin32.c.

{
    //const char* mode_fopen = NULL;
    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
    HANDLE hFile = NULL;

    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);

#ifdef IOWIN32_USING_WINRT_API
#ifdef UNICODE
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
    {
        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
    }
#endif
#else
    if ((filename!=NULL) && (dwDesiredAccess != 0))
        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
#endif

    return win32_build_iowin(hFile);
}

Referenced by fill_win32_filefunc().

win32_read_file_func()

uLong ZCALLBACK win32_read_file_func	(	voidpf	opaque,
		voidpf	stream,
		void *	buf,
		uLong	size
	)

Definition at line 198 of file iowin32.c.

{
    uLong ret=0;
    HANDLE hFile = NULL;
    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;

    if (hFile != NULL)
    {
        if (!ReadFile(hFile, buf, size, &ret, NULL))
        {
            DWORD dwErr = GetLastError();
            if (dwErr == ERROR_HANDLE_EOF)
                dwErr = 0;
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
        }
    }

    return ret;
}

Referenced by fill_win32_filefunc(), fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().

win32_seek64_file_func()

long ZCALLBACK win32_seek64_file_func	(	voidpf	opaque,
		voidpf	stream,
		ZPOS64_T	offset,
		int	origin
	)

Definition at line 347 of file iowin32.c.

{
    DWORD dwMoveMethod=0xFFFFFFFF;
    HANDLE hFile = NULL;
    long ret=-1;

    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream)->hf;

    switch (origin)
    {
        case ZLIB_FILEFUNC_SEEK_CUR :
            dwMoveMethod = FILE_CURRENT;
            break;
        case ZLIB_FILEFUNC_SEEK_END :
            dwMoveMethod = FILE_END;
            break;
        case ZLIB_FILEFUNC_SEEK_SET :
            dwMoveMethod = FILE_BEGIN;
            break;
        default: return -1;
    }

    if (hFile)
    {
        LARGE_INTEGER pos;
        pos.QuadPart = offset;
        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
        {
            DWORD dwErr = GetLastError();
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
            ret = -1;
        }
        else
            ret=0;
    }
    return ret;
}

Referenced by fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().

win32_seek_file_func()

long ZCALLBACK win32_seek_file_func	(	voidpf	opaque,
		voidpf	stream,
		uLong	offset,
		int	origin
	)

Definition at line 309 of file iowin32.c.

{
    DWORD dwMoveMethod=0xFFFFFFFF;
    HANDLE hFile = NULL;

    long ret=-1;
    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
    switch (origin)
    {
    case ZLIB_FILEFUNC_SEEK_CUR :
        dwMoveMethod = FILE_CURRENT;
        break;
    case ZLIB_FILEFUNC_SEEK_END :
        dwMoveMethod = FILE_END;
        break;
    case ZLIB_FILEFUNC_SEEK_SET :
        dwMoveMethod = FILE_BEGIN;
        break;
    default: return -1;
    }

    if (hFile != NULL)
    {
        LARGE_INTEGER pos;
        pos.QuadPart = offset;
        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
        {
            DWORD dwErr = GetLastError();
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
            ret = -1;
        }
        else
            ret=0;
    }
    return ret;
}

Referenced by fill_win32_filefunc().

win32_tell64_file_func()

ZPOS64_T ZCALLBACK win32_tell64_file_func	(	voidpf	opaque,
		voidpf	stream
	)

Definition at line 284 of file iowin32.c.

{
    ZPOS64_T ret= (ZPOS64_T)-1;
    HANDLE hFile = NULL;
    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream)->hf;

    if (hFile)
    {
        LARGE_INTEGER pos;
        pos.QuadPart = 0;

        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
        {
            DWORD dwErr = GetLastError();
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
            ret = (ZPOS64_T)-1;
        }
        else
            ret=pos.QuadPart;
    }
    return ret;
}

Referenced by fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().

win32_tell_file_func()

long ZCALLBACK win32_tell_file_func	(	voidpf	opaque,
		voidpf	stream
	)

Definition at line 261 of file iowin32.c.

{
    long ret=-1;
    HANDLE hFile = NULL;
    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
    if (hFile != NULL)
    {
        LARGE_INTEGER pos;
        pos.QuadPart = 0;

        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
        {
            DWORD dwErr = GetLastError();
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
            ret = -1;
        }
        else
            ret=(long)pos.LowPart;
    }
    return ret;
}

Referenced by fill_win32_filefunc().

win32_translate_open_mode()

static void win32_translate_open_mode ( int  mode, DWORD *  lpdwDesiredAccess, DWORD *  lpdwCreationDisposition, DWORD *  lpdwShareMode, DWORD *  lpdwFlagsAndAttributes  )

static

Definition at line 51 of file iowin32.c.

{
    *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;

    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
    {
        *lpdwDesiredAccess = GENERIC_READ;
        *lpdwCreationDisposition = OPEN_EXISTING;
        *lpdwShareMode = FILE_SHARE_READ;
    }
    else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
    {
        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
        *lpdwCreationDisposition = OPEN_EXISTING;
    }
    else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
    {
        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
        *lpdwCreationDisposition = CREATE_ALWAYS;
    }
}

Referenced by win32_open64_file_func(), win32_open64_file_funcA(), win32_open64_file_funcW(), and win32_open_file_func().

win32_write_file_func()

uLong ZCALLBACK win32_write_file_func	(	voidpf	opaque,
		voidpf	stream,
		const void *	buf,
		uLong	size
	)

Definition at line 220 of file iowin32.c.

{
    uLong ret=0;
    HANDLE hFile = NULL;
    if (stream!=NULL)
        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;

    if (hFile != NULL)
    {
        if (!WriteFile(hFile, buf, size, &ret, NULL))
        {
            DWORD dwErr = GetLastError();
            if (dwErr == ERROR_HANDLE_EOF)
                dwErr = 0;
            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
        }
    }

    return ret;
}

Referenced by fill_win32_filefunc(), fill_win32_filefunc64(), fill_win32_filefunc64A(), and fill_win32_filefunc64W().