setftime.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:  _dos_setftime()
*
****************************************************************************/

#if defined( __OS_dosos2__ ) || defined( __OS_os2v2__ )
#include <dos.h>
#include <wos2.h>

extern int __set_errno( int );

unsigned _dos_setftime( int handle,
                        unsigned short date,
                        unsigned short time )
/********************************************/
{
    APIRET          error;
    OS_UINT         hand_type;
    OS_UINT         device_attr;
    FILESTATUS      info;
    USHORT          *p;

    error = DosQHandType( handle, &hand_type, &device_attr );
    if( error ) {
        __set_errno( error );
        return( error );
    }
    if( hand_type == 0 ) { /* if File-system file */
        error = DosQFileInfo( handle, 1, ( PBYTE ) & info, sizeof( FILESTATUS ) );
        if( error ) {
            __set_errno( error );
            return( error );
        }
        p = ( USHORT * ) ( &info.fdateLastWrite );
        *( unsigned short *) p = date;
        p = ( USHORT * ) ( &info.ftimeLastWrite );
        *( unsigned short *) p = time;
        error = DosSetFileInfo( handle, 1, ( PBYTE ) & info, sizeof( FILESTATUS ) );
    }
    return( 0 );
}
#endif