forked from KolibriOS/kolibrios
update CLib
git-svn-id: svn://kolibrios.org@614 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
144
programs/develop/open watcom/trunk/clib/streamio/fdopen.c
Normal file
144
programs/develop/open watcom/trunk/clib/streamio/fdopen.c
Normal file
@@ -0,0 +1,144 @@
|
||||
/****************************************************************************
|
||||
*
|
||||
* Open Watcom Project
|
||||
*
|
||||
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
|
||||
*
|
||||
* ========================================================================
|
||||
*
|
||||
* This file contains Original Code and/or Modifications of Original
|
||||
* Code as defined in and that are subject to the Sybase Open Watcom
|
||||
* Public License version 1.0 (the 'License'). You may not use this file
|
||||
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
|
||||
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
|
||||
* provided with the Original Code and Modifications, and is also
|
||||
* available at www.sybase.com/developer/opensource.
|
||||
*
|
||||
* The Original Code and all software distributed under the License are
|
||||
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
||||
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
|
||||
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
|
||||
* NON-INFRINGEMENT. Please see the License for the specific language
|
||||
* governing rights and limitations under the License.
|
||||
*
|
||||
* ========================================================================
|
||||
*
|
||||
* Description: Platform independent fdopen() implementation.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
|
||||
#include "variety.h"
|
||||
#include "widechar.h"
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#ifdef __WIDECHAR__
|
||||
#include <wctype.h>
|
||||
#endif
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#ifdef __NT__
|
||||
#include <windows.h>
|
||||
#endif
|
||||
#include "iomode.h"
|
||||
#include "rtdata.h"
|
||||
#include "seterrno.h"
|
||||
#include "streamio.h"
|
||||
|
||||
|
||||
extern int __F_NAME(__open_flags,__wopen_flags)( const CHAR_TYPE *, int * );
|
||||
|
||||
|
||||
#ifndef __NETWARE__
|
||||
|
||||
static int __iomode( int handle, int amode )
|
||||
{
|
||||
int flags;
|
||||
int __errno;
|
||||
|
||||
#ifdef __UNIX__
|
||||
if( (flags = fcntl( handle, F_GETFL )) == -1 ) {
|
||||
return( -1 );
|
||||
}
|
||||
|
||||
__errno = EOK;
|
||||
if( (flags & O_APPEND) && !(amode & _APPEND) ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
if( (flags & O_ACCMODE) == O_RDONLY ) {
|
||||
if( amode & _WRITE ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
} else if( (flags & O_ACCMODE) == O_WRONLY ) {
|
||||
if( amode & _READ ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
}
|
||||
#else
|
||||
/* make sure the handle has the same text/binary mode */
|
||||
flags = __GetIOMode( handle );
|
||||
__errno = 0;
|
||||
if( (amode ^ flags) & (_BINARY | _APPEND) ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
if( ( amode & _READ ) && !(flags & _READ) ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
if( ( amode & _WRITE ) && !(flags & _WRITE) ) {
|
||||
__errno = EACCES;
|
||||
}
|
||||
#endif
|
||||
if( __errno == EACCES ) {
|
||||
__set_errno( __errno );
|
||||
return( -1 );
|
||||
}
|
||||
return( 0 );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
_WCRTLINK FILE *__F_NAME(fdopen,_wfdopen)( int handle, const CHAR_TYPE *access_mode )
|
||||
{
|
||||
unsigned flags;
|
||||
FILE *fp;
|
||||
int extflags;
|
||||
|
||||
if( handle == -1 ) {
|
||||
__set_errno( EBADF ); /* 5-dec-90 */
|
||||
return( NULL ); /* 19-apr-90 */
|
||||
}
|
||||
flags = __F_NAME(__open_flags,__wopen_flags)( access_mode, &extflags );
|
||||
if( flags == 0 ) return( NULL );
|
||||
|
||||
#ifndef __NETWARE__
|
||||
/* make sure the handle has the same text/binary mode */
|
||||
if( __iomode( handle, flags ) == -1 ) {
|
||||
return( NULL );
|
||||
}
|
||||
#endif
|
||||
fp = __allocfp( handle ); /* JBS 30-aug-91 */
|
||||
if( fp ) {
|
||||
fp->_flag &= ~(_READ | _WRITE); /* 2-dec-90 */
|
||||
fp->_flag |= flags;
|
||||
fp->_cnt = 0;
|
||||
_FP_BASE(fp) = NULL;
|
||||
fp->_bufsize = 0; /* was BUFSIZ JBS 91/05/31 */
|
||||
#ifndef __NETWARE__
|
||||
_FP_ORIENTATION(fp) = _NOT_ORIENTED; /* initial orientation */
|
||||
_FP_EXTFLAGS(fp) = extflags;
|
||||
#endif
|
||||
#if defined( __NT__ ) || defined( __OS2__ )
|
||||
_FP_PIPEDATA(fp).isPipe = 0; /* not a pipe */
|
||||
#endif
|
||||
fp->_handle = handle; /* BJS 91-07-23 */
|
||||
if( __F_NAME(tolower,towlower)( *access_mode ) == 'a' ) {
|
||||
fseek( fp, 0, SEEK_END );
|
||||
}
|
||||
__chktty( fp ); /* JBS 31-may-91 */
|
||||
#if !defined( __UNIX__ ) && !defined( __NETWARE__ )
|
||||
__SetIOMode( handle, flags );
|
||||
#endif
|
||||
}
|
||||
return( fp );
|
||||
}
|
Reference in New Issue
Block a user