| 0,0 → 1,69 |
|---|
| /**************************************************************************** |
| * |
| * 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: Implementation of clearenv() - clear the environment. |
| * |
| ****************************************************************************/ |
| |
| |
| #include "variety.h" |
| #include <stdlib.h> |
| #include <env.h> |
| #include "liballoc.h" |
| #include "rtdata.h" |
| |
| /* Note - clearenv() is always called at library exit */ |
| |
| _WCRTLINK int (clearenv)( void ) |
| { |
| #ifndef __NETWARE__ |
| char **envp; |
| char *env_str; |
| int index; |
| |
| if( _RWD_environ != NULL ) { |
| for( envp = _RWD_environ; env_str = *envp; ++envp ) { |
| if( _RWD_env_mask != NULL ) { |
| index = envp - _RWD_environ; |
| if( _RWD_env_mask[ index ] != 0 ) { |
| lib_free( (void *)env_str ); |
| } |
| *envp = NULL; |
| } |
| } |
| if( _RWD_env_mask != NULL ) { |
| lib_free( _RWD_environ ); |
| } |
| envp = lib_malloc( sizeof(char *) + sizeof(char) ); |
| if( envp == NULL ) return( -1 ); |
| _RWD_environ = envp; |
| *_RWD_environ = NULL; |
| _RWD_env_mask = ((char *)envp) + sizeof(char *); |
| *_RWD_env_mask = 0; |
| } |
| #endif |
| return( 0 ); /* success */ |
| } |