crtwenv.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 62 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:  Create wide character copy of environment.
*
****************************************************************************/


#include "variety.h"
#include <env.h>
#include <mbstring.h>
#include <stdlib.h>
#include "liballoc.h"
#include "rtdata.h"
#include "wenviron.h"


void __create_wide_environment( void )
/************************************/
{
    char                **envp = _RWD_environ;
    char                *p;
    size_t              len;
    wchar_t             *wcs;

    if( envp == NULL ) return;
    while( (p=*envp++) != NULL ) {
        len = _mbslen( p ) + 1;
        wcs = lib_malloc( len * sizeof(wchar_t) );
        if( wcs != NULL ) {
            if( mbstowcs( wcs, p, len ) != -1 ) {
                __wputenv( wcs );
            } else {
                lib_free( wcs );
            }
        }
    }
}