xref: /freebsd/contrib/openpam/lib/libpam/openpam_free_envlist.c (revision 3ba4c8c81a28de3e00ccf6d7f92c6f8e58bef456)

/*-
 * Copyright (c) 2005-2011 Dag-Erling Smørgrav
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdlib.h>

#include <security/pam_appl.h>

#include "openpam_impl.h"

/*
 * OpenPAM extension
 *
 * Free an environment list
 */

void
openpam_free_envlist(char **envlist)
{
	char **env;

	ENTER();
	if (envlist == NULL)
		RETURNV();
	for (env = envlist; *env != NULL; ++env)
		FREE(*env);
	FREE(envlist);
	RETURNV();
}

/*
 * Error codes:
 */

/**
 * The =openpam_free_envlist function is a convenience function which
 * frees all the environment variables in an environment list, and the
 * list itself.
 * It is suitable for freeing the return value from =pam_getenvlist.
 *
 * AUTHOR DES
 */