source: openpam/trunk/lib/openpam_get_option.c @ 157

Last change on this file since 157 was 157, checked in by des, 12 years ago

DBA update and minor whitespace fixes.

File size: 2.8 KB
Line 
1/*-
2 * Copyright (c) 2002 Networks Associates Technology, Inc.
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * Network Associates Laboratories, the Security Research Division of
7 * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
8 * ("CBOSS"), as part of the DARPA CHATS research program.
9 *
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.
21 *
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.
33 *
34 * $P4: //depot/projects/openpam/lib/openpam_get_option.c#4 $
35 */
36
37#include <sys/param.h>
38
39#include <string.h>
40
41#include <security/pam_appl.h>
42#include <security/openpam.h>
43
44#include "openpam_impl.h"
45
46/*
47 * OpenPAM extension
48 *
49 * Returns the value of a module option
50 */
51
52const char *
53openpam_get_option(pam_handle_t *pamh,
54        const char *option)
55{
56        pam_chain_t *cur;
57        size_t len;
58        int i;
59
60        if (pamh == NULL || pamh->current == NULL || option == NULL)
61                return (NULL);
62        cur = pamh->current;
63        len = strlen(option);
64        for (i = 0; i < cur->optc; ++i) {
65                if (strncmp(cur->optv[i], option, len) == 0) {
66                        if (cur->optv[i][len] == '\0')
67                                return (&cur->optv[i][len]);
68                        else if (cur->optv[i][len] == '=')
69                                return (&cur->optv[i][len + 1]);
70                }
71        }
72        return (NULL);
73}
74
75/*
76 * NOLIST
77 */
78
79/**
80 * The =openpam_get_option function returns the value of the specified
81 * option in the context of the currently executing service module, or
82 * =NULL if the option is not set or no module is currently executing.
83 */
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