source: openpam/trunk/lib/openpam_get_option.c @ 594

Last change on this file since 594 was 531, checked in by Dag-Erling Smørgrav, 9 years ago

Redundant #include

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File size: 2.8 KB
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1/*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2011 Dag-Erling Smørgrav
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by ThinkSec AS and
7 * Network Associates Laboratories, the Security Research Division of
8 * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
9 * ("CBOSS"), as part of the DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote
20 *    products derived from this software without specific prior written
21 *    permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $Id: openpam_get_option.c 531 2012-03-31 14:24:37Z des $
36 */
37
38#ifdef HAVE_CONFIG_H
39# include "config.h"
40#endif
41
42#include <sys/param.h>
43
44#include <string.h>
45
46#include <security/pam_appl.h>
47
48#include "openpam_impl.h"
49
50/*
51 * OpenPAM extension
52 *
53 * Returns the value of a module option
54 */
55
56const char *
57openpam_get_option(pam_handle_t *pamh,
58        const char *option)
59{
60        pam_chain_t *cur;
61        size_t len;
62        int i;
63
64        ENTERS(option);
65        if (pamh == NULL || pamh->current == NULL || option == NULL)
66                RETURNS(NULL);
67        cur = pamh->current;
68        len = strlen(option);
69        for (i = 0; i < cur->optc; ++i) {
70                if (strncmp(cur->optv[i], option, len) == 0) {
71                        if (cur->optv[i][len] == '\0')
72                                RETURNS(&cur->optv[i][len]);
73                        else if (cur->optv[i][len] == '=')
74                                RETURNS(&cur->optv[i][len + 1]);
75                }
76        }
77        RETURNS(NULL);
78}
79
80/**
81 * The =openpam_get_option function returns the value of the specified
82 * option in the context of the currently executing service module, or
83 * =NULL if the option is not set or no module is currently executing.
84 *
85 * >openpam_set_option
86 */
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