/*-
 * Copyright (c) 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)putenv.c	8.2 (Berkeley) 03/27/94";
#endif /* LIBC_SCCS and not lint */

#include <stdlib.h>
#include <string.h>

int
putenv(str)
	const char *str;
{
	char *p, *equal;
	int rval;

	if ((p = strdup(str)) == NULL)
		return (-1);
	if ((equal = index(p, '=')) == NULL) {
		(void)free(p);
		return (-1);
	}
	*equal = '\0';
	rval = setenv(p, equal + 1, 1);
	(void)free(p);
	return (rval);
}