1/*	$NetBSD$	*/
2
3/*-
4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
5 * Copyright (c) 2004-2011 Dag-Erling Sm��rgrav
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 * Id: openpam_nullconv.c 437 2011-09-13 12:00:13Z des
38 */
39
40#ifdef HAVE_CONFIG_H
41# include "config.h"
42#endif
43
44#include <sys/types.h>
45
46#include <security/pam_appl.h>
47
48#include "openpam_impl.h"
49
50/*
51 * OpenPAM extension
52 *
53 * Null conversation function
54 */
55
56int
57openpam_nullconv(int n,
58	 const struct pam_message **msg,
59	 struct pam_response **resp,
60	 void *data)
61{
62
63	ENTER();
64	/*LINTED unused*/
65	(void)n;
66	/*LINTED unused*/
67	(void)msg;
68	/*LINTED unused*/
69	(void)resp;
70	/*LINTED unused*/
71	(void)data;
72	RETURNC(PAM_CONV_ERR);
73	/*NOTREACHED*/
74}
75
76/*
77 * Error codes:
78 *
79 *	PAM_CONV_ERR
80 */
81
82/**
83 * The =openpam_nullconv function is a null conversation function suitable
84 * for applications that want to use PAM but don't support interactive
85 * dialog with the user.
86 * Such applications should set =PAM_AUTHTOK to whatever authentication
87 * token they've obtained on their own before calling =pam_authenticate
88 * and / or =pam_chauthtok, and their PAM configuration should specify the
89 * ;use_first_pass option for all modules that require access to the
90 * authentication token, to make sure they use =PAM_AUTHTOK rather than
91 * try to query the user.
92 *
93 * >openpam_ttyconv
94 * >pam_prompt
95 * >pam_set_item
96 * >pam_vprompt
97 */
98