creatos2.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 68 行

/****************************************************************************
*
*                            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 <stdio.h>
#include <dos.h>
#include <io.h>
#include <fcntl.h>
#include "fileacc.h"
#include <wos2.h>
#include "openmode.h"
#include "iomode.h"
#include "seterrno.h"


_WCRTLINK unsigned _dos_creat( const char *name, unsigned attribute, int *handle )
{
    OS_UINT error, actiontaken;
    HFILE   fhandle;

    while( *name == ' ' ) ++name;
    error = DosOpen( (PSZ)name,
                     &fhandle,
                     &actiontaken,
                     0ul,
                     attribute,
                     OPENFLAG_REPLACE_IF_EXISTS |
                     OPENFLAG_CREATE_IF_NOT_EXISTS,
                     OPENMODE_ACCESS_RDWR | OPENMODE_DENY_NONE,
                     0ul );
    if( error ) {
        __set_errno_dos( error );
        return( error );
    }
    *handle = fhandle;
    __SetIOMode( fhandle, _READ | _WRITE );
    return( 0 );
}