2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001,2003 Networks Associates Technology, Inc.
7 * This software was developed for the FreeBSD Project by ThinkSec AS and
8 * NAI Labs, the Security Research Division of Network Associates, Inc.
9 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
10 * DARPA CHATS research program.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote
21 * products derived from this software without specific prior written
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
44 #include <security/pam_appl.h>
45 #include <security/pam_modules.h>
46 #include <security/openpam.h>
49 _pam_echo(pam_handle_t *pamh, int flags,
50 int argc, const char *argv[])
52 char msg[PAM_MAX_MSG_SIZE];
58 if (flags & PAM_SILENT)
60 for (i = 0, len = 0; i < argc && len < sizeof(msg) - 1; ++i) {
63 for (p = argv[i]; *p != '\0' && len < sizeof(msg) - 1; ++p) {
64 if (*p != '%' || p[1] == '\0') {
95 err = pam_get_item(pamh, item, &str);
96 if (err != PAM_SUCCESS)
100 for (q = str; *q != '\0' && len < sizeof(msg) - 1; ++q)
105 return (pam_info(pamh, "%s", msg));
109 pam_sm_authenticate(pam_handle_t *pamh, int flags,
110 int argc, const char *argv[])
113 return (_pam_echo(pamh, flags, argc, argv));
117 pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused,
118 int argc __unused, const char *argv[] __unused)
121 return (PAM_SUCCESS);
125 pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
126 int argc, const char *argv[])
129 return (_pam_echo(pamh, flags, argc, argv));
133 pam_sm_open_session(pam_handle_t *pamh, int flags,
134 int argc, const char *argv[])
137 return (_pam_echo(pamh, flags, argc, argv));
141 pam_sm_close_session(pam_handle_t *pamh, int flags,
142 int argc, const char *argv[])
145 return (_pam_echo(pamh, flags, argc, argv));
149 pam_sm_chauthtok(pam_handle_t *pamh, int flags,
150 int argc, const char *argv[])
153 if (flags & PAM_PRELIM_CHECK)
154 return (PAM_SUCCESS);
155 return (_pam_echo(pamh, flags, argc, argv));
158 PAM_MODULE_ENTRY("pam_echo");