1 /* $NetBSD: pam_get_data.c,v 1.4 2023/06/30 21:46:21 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
5 * Copyright (c) 2004-2017 Dag-Erling Smørgrav
6 * All rights reserved.
7 *
8 * This software was developed for the FreeBSD Project by ThinkSec AS and
9 * Network Associates Laboratories, the Security Research Division of
10 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
11 * ("CBOSS"), as part of the DARPA CHATS research program.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. The name of the author may not be used to endorse or promote
22 * products derived from this software without specific prior written
23 * permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #ifdef HAVE_CONFIG_H
39 # include "config.h"
40 #endif
41
42 #include <sys/cdefs.h>
43 __RCSID("$NetBSD: pam_get_data.c,v 1.4 2023/06/30 21:46:21 christos Exp $");
44
45 #include <string.h>
46
47 #include <security/pam_appl.h>
48
49 #include "openpam_impl.h"
50
51 /*
52 * XSSO 4.2.1
53 * XSSO 6 page 43
54 *
55 * Get module information
56 */
57
58 int
pam_get_data(const pam_handle_t * pamh,const char * module_data_name,const void ** data)59 pam_get_data(const pam_handle_t *pamh,
60 const char *module_data_name,
61 const void **data)
62 {
63 pam_data_t *dp;
64
65 ENTERS(module_data_name);
66 for (dp = pamh->module_data; dp != NULL; dp = dp->next) {
67 if (strcmp(dp->name, module_data_name) == 0) {
68 *data = (void *)dp->data;
69 RETURNC(PAM_SUCCESS);
70 }
71 }
72 RETURNC(PAM_NO_MODULE_DATA);
73 }
74
75 /*
76 * Error codes:
77 *
78 * PAM_NO_MODULE_DATA
79 */
80
81 /**
82 * The =pam_get_data function looks up the opaque object associated with
83 * the string specified by the =module_data_name argument, in the PAM
84 * context specified by the =pamh argument.
85 * A pointer to the object is stored in the location pointed to by the
86 * =data argument.
87 * If =pam_get_data fails, the =data argument is untouched.
88 *
89 * This function and its counterpart =pam_set_data are useful for managing
90 * data that are meaningful only to a particular service module.
91 */
92