Libc-262.tar.gz

[apple/libc.git] / stdlib / putenv.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
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 * "License").  You may not use this file except in compliance with the
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 * http://www.apple.com/publicsource and read it before using this file.
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/*
 * Copyright (c) 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *	This product includes software developed by the University of
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#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);
}