chmodos2.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 85 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:  OS/2 implementation of chmod().
*
****************************************************************************/


#include "variety.h"
#include "widechar.h"
#include <io.h>
#include <direct.h>
#include <wos2.h>
#include "seterrno.h"
#ifdef __WIDECHAR__
    #include <mbstring.h>
    #include <stdlib.h>
    #include "mbwcconv.h"
#endif


_WCRTLINK int __F_NAME(chmod,_wchmod)( const CHAR_TYPE *pathname, int pmode )
{
    APIRET  rc;
    USHORT  attr;
#if defined(__WARP__)
    FILESTATUS3     fs;

    #ifdef __WIDECHAR__
        char        mbPath[MB_CUR_MAX*_MAX_PATH];
        __filename_from_wide( mbPath, pathname );
    #endif
    rc = DosQueryPathInfo( (PSZ)__F_NAME(pathname,mbPath), FIL_STANDARD,
                           &fs, sizeof( fs ) );
    attr = fs.attrFile;
#else
    #ifdef __WIDECHAR__
        char        mbPath[MB_CUR_MAX*_MAX_PATH];
        __filename_from_wide( mbPath, pathname );
    #endif
    rc = DosQFileMode( (PSZ)__F_NAME(pathname,mbPath), &attr, 0 );
#endif
    if( rc != 0 ) {
        return( __set_errno_dos( rc ) );
    }
    attr &= ~_A_RDONLY;
    if( !( pmode & S_IWRITE ) ) {
        attr |= _A_RDONLY;
    }
#if defined(__WARP__)
    fs.attrFile = attr;
    rc = DosSetPathInfo( (PSZ)__F_NAME(pathname,mbPath), FIL_STANDARD,
                           &fs, sizeof( fs ), 0 );
#else
    rc = DosSetFileMode( (PSZ)__F_NAME(pathname,mbPath), attr, 0 );
#endif
    if( rc != 0 ) {
        return( __set_errno_dos( rc ) );
    }
    return( 0 );
}