chdir.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 69 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
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*  ========================================================================
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
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****************************************************************************/


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


_WCRTLINK int __F_NAME(chdir,_wchdir)( const CHAR_TYPE *path )
{
#ifndef __WIDECHAR__
    tiny_ret_t          rc;

    rc = TinyChangeDir( path );
#else
    tiny_ret_t          rc;
    size_t              rcConvert;
    char                mbcsPath[MB_CUR_MAX*_MAX_PATH];
    char *              p;

    /*** Convert the wide character string to a multibyte string ***/
    rcConvert = wcstombs( mbcsPath, path, MB_CUR_MAX*_MAX_PATH );
    p = _mbsninc( mbcsPath, rcConvert );
    *p = '\0';

    rc = TinyChangeDir( mbcsPath );
#endif

    if( TINY_ERROR(rc) ) {
        return( __set_errno_dos( TINY_INFO(rc) ) );
    }
    return( 0 );                            /* indicate no error */
}