1/*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2017 Dag-Erling Sm��rgrav
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_get_item.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 <sys/param.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 46
51 *
52 * Get PAM information
53 */
54
55int
56pam_get_item(const pam_handle_t *pamh,
57	int item_type,
58	const void **item)
59{
60
61	ENTERI(item_type);
62	switch (item_type) {
63	case PAM_SERVICE:
64	case PAM_USER:
65	case PAM_AUTHTOK:
66	case PAM_OLDAUTHTOK:
67	case PAM_TTY:
68	case PAM_RHOST:
69	case PAM_RUSER:
70	case PAM_CONV:
71	case PAM_USER_PROMPT:
72	case PAM_REPOSITORY:
73	case PAM_AUTHTOK_PROMPT:
74	case PAM_OLDAUTHTOK_PROMPT:
75	case PAM_HOST:
76		*item = pamh->item[item_type];
77		RETURNC(PAM_SUCCESS);
78	default:
79		RETURNC(PAM_BAD_ITEM);
80	}
81}
82
83/*
84 * Error codes:
85 *
86 *	PAM_BAD_ITEM
87 */
88
89/**
90 * The =pam_get_item function stores a pointer to the item specified by
91 * the =item_type argument in the location pointed to by the =item
92 * argument.
93 * The item is retrieved from the PAM context specified by the =pamh
94 * argument.
95 * If =pam_get_item fails, the =item argument is untouched.
96 *
97 * The following item types are recognized:
98 *
99 *	=PAM_SERVICE:
100 *		The name of the requesting service.
101 *	=PAM_USER:
102 *		The name of the user the application is trying to
103 *		authenticate.
104 *	=PAM_TTY:
105 *		The name of the current terminal.
106 *	=PAM_RHOST:
107 *		The name of the applicant's host.
108 *	=PAM_CONV:
109 *		A =struct pam_conv describing the current conversation
110 *		function.
111 *	=PAM_AUTHTOK:
112 *		The current authentication token.
113 *	=PAM_OLDAUTHTOK:
114 *		The expired authentication token.
115 *	=PAM_RUSER:
116 *		The name of the applicant.
117 *	=PAM_USER_PROMPT:
118 *		The prompt to use when asking the applicant for a user
119 *		name to authenticate as.
120 *	=PAM_AUTHTOK_PROMPT:
121 *		The prompt to use when asking the applicant for an
122 *		authentication token.
123 *	=PAM_OLDAUTHTOK_PROMPT:
124 *		The prompt to use when asking the applicant for an
125 *		expired authentication token prior to changing it.
126 *	=PAM_HOST:
127 *		The name of the host the application runs on.
128 *
129 * See =pam_start for a description of =struct pam_conv.
130 *
131 * >pam_set_item
132 */
133