1 /*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2017 Dag-Erling Smørgrav
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by ThinkSec AS and
7 * Network Associates Laboratories, the Security Research Division of
8 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
9 * ("CBOSS"), as part of the DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote
20 * products derived from this software without specific prior written
21 * permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $OpenPAM: pam_end.c 938 2017-04-30 21:34:42Z des $
36 */
37
38 #ifdef HAVE_CONFIG_H
39 # include "config.h"
40 #endif
41
42 #include <stdlib.h>
43
44 #include <security/pam_appl.h>
45
46 #include "openpam_impl.h"
47
48 /*
49 * XSSO 4.2.1
50 * XSSO 6 page 42
51 *
52 * Terminate the PAM transaction
53 */
54
55 int
pam_end(pam_handle_t * pamh,int status)56 pam_end(pam_handle_t *pamh,
57 int status)
58 {
59 pam_data_t *dp;
60 int i;
61
62 ENTER();
63 if (pamh == NULL)
64 RETURNC(PAM_BAD_HANDLE);
65
66 /* clear module data */
67 while ((dp = pamh->module_data) != NULL) {
68 if (dp->cleanup)
69 (dp->cleanup)(pamh, dp->data, status);
70 pamh->module_data = dp->next;
71 FREE(dp->name);
72 FREE(dp);
73 }
74
75 /* clear environment */
76 while (pamh->env_count) {
77 --pamh->env_count;
78 FREE(pamh->env[pamh->env_count]);
79 }
80 FREE(pamh->env);
81
82 /* clear chains */
83 openpam_clear_chains(pamh->chains);
84
85 /* clear items */
86 for (i = 0; i < PAM_NUM_ITEMS; ++i)
87 pam_set_item(pamh, i, NULL);
88
89 FREE(pamh);
90
91 RETURNC(PAM_SUCCESS);
92 }
93
94 /*
95 * Error codes:
96 *
97 * PAM_BAD_HANDLE
98 */
99
100 /**
101 * The =pam_end function terminates a PAM transaction and destroys the
102 * corresponding PAM context, releasing all resources allocated to it.
103 *
104 * The =status argument should be set to the error code returned by the
105 * last API call before the call to =pam_end.
106 */
107