xref: /onnv-gate/usr/src/lib/libast/common/comp/setenv.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin 
244887Schin #define setenv		______setenv
254887Schin 
264887Schin #include <ast.h>
274887Schin 
284887Schin #undef	setenv
294887Schin #undef	_lib_setenv	/* procopen() calls setenv() */
304887Schin 
314887Schin #if _lib_setenv
324887Schin 
334887Schin NoN(setenv)
344887Schin 
354887Schin #else
364887Schin 
374887Schin #undef	_def_map_ast
384887Schin #include <ast_map.h>
394887Schin 
404887Schin #if defined(__EXPORT__)
414887Schin #define extern	__EXPORT__
424887Schin #endif
434887Schin 
444887Schin extern int
454887Schin setenv(const char* name, const char* value, int overwrite)
464887Schin {
474887Schin 	char*	s;
484887Schin 
494887Schin 	if (overwrite || !getenv(name))
504887Schin 	{
514887Schin 		if (!(s = sfprints("%s=%s", name, value)) || !(s = strdup(s)))
524887Schin 			return -1;
534887Schin 		return setenviron(s) ? 0 : -1;
544887Schin 	}
554887Schin 	return 0;
564887Schin }
574887Schin 
584887Schin #endif
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