kolibrios-fun/programs/develop/open watcom/trunk/clib/direct/gtcwdwnt.c

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/****************************************************************************
*
* 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: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
* DESCRIBE IT HERE!
*
****************************************************************************/
#include "variety.h"
#include "widechar.h"
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <dos.h>
#include <direct.h>
#include "rtdata.h"
#include "seterrno.h"
#include "liballoc.h"
int _stdcall sys_getcwd(char *buf, size_t size);
_WCRTLINK CHAR_TYPE *__F_NAME(getcwd,_wgetcwd)( CHAR_TYPE *buf, size_t size )
{
char path[1024];
size_t realsize;
/*** Get the current directory ***/
realsize = sys_getcwd( path, 1024 );
if( realsize == 0 ) {
return( NULL );
}
if( buf == NULL ) {
buf = lib_malloc( max(size,realsize) * CHARSIZE );
if( buf == NULL ) {
__set_errno( ENOMEM );
return( NULL );
}
} else {
if( realsize > size ) {
__set_errno( ERANGE );
return( NULL );
}
}
memcpy( buf, path, realsize*CHARSIZE );
return( buf );
}