freebsd-dev/contrib/openpam/lib/libpam/pam_end.c
2017-02-20 00:56:46 +00:00

99 lines
2.9 KiB
C

/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2011 Dag-Erling Smørgrav
* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
* Network Associates Laboratories, the Security Research Division of
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $Id: pam_end.c 913 2017-01-21 15:11:12Z des $
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
/*
* XSSO 4.2.1
* XSSO 6 page 42
*
* Terminate the PAM transaction
*/
int
pam_end(pam_handle_t *pamh,
int status)
{
pam_data_t *dp;
int i;
ENTER();
/* clear module data */
while ((dp = pamh->module_data) != NULL) {
if (dp->cleanup)
(dp->cleanup)(pamh, dp->data, status);
pamh->module_data = dp->next;
FREE(dp->name);
FREE(dp);
}
/* clear environment */
while (pamh->env_count) {
--pamh->env_count;
FREE(pamh->env[pamh->env_count]);
}
FREE(pamh->env);
/* clear chains */
openpam_clear_chains(pamh->chains);
/* clear items */
for (i = 0; i < PAM_NUM_ITEMS; ++i)
pam_set_item(pamh, i, NULL);
FREE(pamh);
RETURNC(PAM_SUCCESS);
}
/**
* The =pam_end function terminates a PAM transaction and destroys the
* corresponding PAM context, releasing all resources allocated to it.
*
* The =status argument should be set to the error code returned by the
* last API call before the call to =pam_end.
*/