xref: /netbsd-src/external/bsd/openpam/dist/lib/libpam/pam_strerror.c (revision 0d9d0fd8a30be9a1924e715bbcf67a4a83efd262)
1 /*	$NetBSD: pam_strerror.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_strerror.c,v 1.4 2023/06/30 21:46:21 christos Exp $");
44 
45 #include <stdio.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 92
54  *
55  * Get PAM standard error message string
56  */
57 
58 const char *
pam_strerror(const pam_handle_t * pamh,int error_number)59 pam_strerror(const pam_handle_t *pamh,
60 	int error_number)
61 {
62 	static char unknown[16];
63 
64 	/*LINTED unused*/
65 	(void)pamh;
66 	if (error_number >= 0 && error_number < PAM_NUM_ERRORS) {
67 		return (pam_err_text[error_number]);
68 	} else {
69 		snprintf(unknown, sizeof unknown, "#%d", error_number);
70 		return (unknown);
71 	}
72 }
73 
74 /**
75  * The =pam_strerror function returns a pointer to a string containing a
76  * textual description of the error indicated by the =error_number
77  * argument.
78  * The =pamh argument is ignored.
79  * For compatibility with other implementations, it should be either a
80  * valid PAM handle returned by a previous call to =pam_start, or =NULL.
81  */
82