Add some more pam modules:
[dragonfly.git] / lib / pam_module / pam_echo / pam_echo.c
blobd1c0ce0e6003cf402941d03b839b56cc8d0184e7
1 /*-
2 * Copyright (c) 2001,2003 Networks Associates Technology, Inc.
3 * All rights reserved.
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote
19 * products derived from this software without specific prior written
20 * permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
34 * $FreeBSD: src/lib/libpam/modules/pam_echo/pam_echo.c,v 1.4 2003/12/11 13:55:15 des Exp $
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
41 #include <security/pam_appl.h>
42 #include <security/pam_modules.h>
43 #include <security/openpam.h>
45 static int
46 _pam_echo(pam_handle_t *pamh, int flags, int argc, const char *argv[])
48 char msg[PAM_MAX_MSG_SIZE];
49 const void *str;
50 const char *p, *q;
51 int err, i, item;
52 size_t len;
54 if (flags & PAM_SILENT)
55 return (PAM_SUCCESS);
56 for (i = 0, len = 0; i < argc && len < sizeof(msg) - 1; ++i) {
57 if (i > 0)
58 msg[len++] = ' ';
59 for (p = argv[i]; *p != '\0' && len < sizeof(msg) - 1; ++p) {
60 if (*p != '%' || p[1] == '\0') {
61 msg[len++] = *p;
62 continue;
64 switch (*++p) {
65 case 'H':
66 item = PAM_RHOST;
67 break;
68 case 'h':
69 /* not implemented */
70 item = -1;
71 break;
72 case 's':
73 item = PAM_SERVICE;
74 break;
75 case 't':
76 item = PAM_TTY;
77 break;
78 case 'U':
79 item = PAM_RUSER;
80 break;
81 case 'u':
82 item = PAM_USER;
83 break;
84 default:
85 item = -1;
86 msg[len++] = *p;
87 break;
89 if (item == -1)
90 continue;
91 err = pam_get_item(pamh, item, &str);
92 if (err != PAM_SUCCESS)
93 return (err);
94 if (str == NULL)
95 str = "(null)";
96 for (q = str; *q != '\0' && len < sizeof(msg) - 1; ++q)
97 msg[len++] = *q;
100 msg[len] = '\0';
101 return (pam_info(pamh, "%s", msg));
104 PAM_EXTERN int
105 pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char *argv[])
108 return (_pam_echo(pamh, flags, argc, argv));
111 PAM_EXTERN int
112 pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused,
113 int argc __unused, const char *argv[] __unused)
116 return (PAM_SUCCESS);
119 PAM_EXTERN int
120 pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char *argv[])
123 return (_pam_echo(pamh, flags, argc, argv));
126 PAM_EXTERN int
127 pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char *argv[])
130 return (_pam_echo(pamh, flags, argc, argv));
133 PAM_EXTERN int
134 pam_sm_close_session(pam_handle_t *pamh, int flags,
135 int argc, const char *argv[])
138 return (_pam_echo(pamh, flags, argc, argv));
141 PAM_EXTERN int
142 pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char *argv[])
145 if (flags & PAM_PRELIM_CHECK)
146 return (PAM_SUCCESS);
147 return (_pam_echo(pamh, flags, argc, argv));
150 PAM_MODULE_ENTRY("pam_echo");