2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001 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
36 * $FreeBSD: head/lib/libpam/modules/pam_ftpusers/pam_ftpusers.c 326219 2017-11-26 02:00:33Z pfg $
47 #define PAM_SM_ACCOUNT
49 #include <security/pam_appl.h>
50 #include <security/pam_modules.h>
51 #include <security/pam_mod_misc.h>
52 #include <security/openpam.h>
55 pam_sm_acct_mgmt(pam_handle_t
*pamh
, int flags __unused
,
56 int argc __unused
, const char *argv
[] __unused
)
61 int pam_err
, found
, allow
;
62 char *line
, *name
, **mem
;
66 pam_err
= pam_get_user(pamh
, &user
, NULL
);
67 if (pam_err
!= PAM_SUCCESS
)
69 if (user
== NULL
|| (pwd
= getpwnam(user
)) == NULL
)
70 return (PAM_SERVICE_ERR
);
74 if ((f
= fopen(_PATH_FTPUSERS
, "r")) == NULL
) {
75 PAM_LOG("%s: %m", _PATH_FTPUSERS
);
78 while (!found
&& (line
= fgetln(f
, &len
)) != NULL
) {
81 while (len
> 0 && isspace(line
[len
- 1]))
85 /* simple case first */
87 if (len
== ulen
&& strncmp(user
, line
, len
) == 0)
91 /* member of specified group? */
92 asprintf(&name
, "%.*s", (int)len
- 1, line
+ 1);
101 for (mem
= grp
->gr_mem
; mem
&& *mem
&& !found
; ++mem
)
102 if (strcmp(user
, *mem
) == 0)
106 allow
= (openpam_get_option(pamh
, "disallow") == NULL
);
108 pam_err
= allow
? PAM_SUCCESS
: PAM_AUTH_ERR
;
110 pam_err
= allow
? PAM_AUTH_ERR
: PAM_SUCCESS
;
116 PAM_MODULE_ENTRY("pam_ftpusers");