/***********************************************************************

*                                                                      *

*               This software is part of the ast package               *

*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

*                      and is licensed under the                       *

*                 Eclipse Public License, Version 1.0                  *

*                    by AT&T Intellectual Property                     *

*                                                                      *

*                A copy of the License is available at                 *

*          http://www.eclipse.org/org/documents/epl-v10.html           *

*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

*                                                                      *

*              Information and Software Systems Research               *

*                            AT&T Research                             *

*                           Florham Park NJ                            *

*                                                                      *

*                 Glenn Fowler <gsf@research.att.com>                  *

*                  David Korn <dgk@research.att.com>                   *

*                   Phong Vo <kpv@research.att.com>                    *

*                                                                      *

***********************************************************************/

#pragma prototyped

#define setenv		______setenv

#include <ast.h>

#undef	setenv

#undef	_lib_setenv	/* procopen() calls setenv() */

#if _lib_setenv

NoN(setenv)

#else

#undef	_def_map_ast

#include <ast_map.h>

#if defined(__EXPORT__)

#define extern	__EXPORT__

#endif

extern int

setenv(const char* name, const char* value, int overwrite)

{

	char*	s;

	if (overwrite || !getenv(name))

	{

		if (!(s = sfprints("%s=%s", name, value)) || !(s = strdup(s)))

			return -1;

		return setenviron(s) ? 0 : -1;

	}

	return 0;

}

#endif