source: openpam/trunk/lib/openpam_log.c @ 200

Last change on this file since 200 was 187, checked in by Dag-Erling Smørgrav, 18 years ago

Instrument entry and exit points.

File size: 3.4 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_log.c#17 $
35 */
36
37#include <ctype.h>
38#include <stdarg.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42#include <syslog.h>
43
44#include <security/pam_appl.h>
45
46#include "openpam_impl.h"
47
48#if defined(openpam_log)
49
50/*
51 * OpenPAM extension
52 *
53 * Log a message through syslog(3)
54 */
55
56void
57_openpam_log(int level, const char *func, const char *fmt, ...)
58{
59        va_list ap;
60        char *format;
61        int len, priority;
62
63        switch (level) {
64        case PAM_LOG_DEBUG:
65#ifndef DEBUG
66                return;
67#else
68                priority = LOG_DEBUG;
69                break;
70#endif
71        case PAM_LOG_VERBOSE:
72                priority = LOG_INFO;
73                break;
74        case PAM_LOG_NOTICE:
75                priority = LOG_NOTICE;
76                break;
77        case PAM_LOG_ERROR:
78        default:
79                priority = LOG_ERR;
80                break;
81        }
82        va_start(ap, fmt);
83        for (len = strlen(fmt); len > 0 && isspace(fmt[len]); len--)
84                /* nothing */;
85        if ((format = malloc(strlen(func) + len + 16)) != NULL) {
86                sprintf(format, "in %s(): %.*s\n", func, len, fmt);
87                vsyslog(priority, format, ap);
88                free(format);
89        } else {
90                vsyslog(priority, fmt, ap);
91        }
92        va_end(ap);
93}
94
95#else
96
97/*
98 * If openpam_log isn't defined as a macro, we're on a platform that
99 * doesn't support varadic macros (or it does but we aren't aware of
100 * it).  Do the next best thing.
101 */
102
103void
104openpam_log(int level, const char *fmt, ...)
105{
106        va_list ap;
107        int priority;
108
109        switch (level) {
110        case PAM_LOG_DEBUG:
111#ifndef DEBUG
112                return;
113#else
114                priority = LOG_DEBUG;
115                break;
116#endif
117        case PAM_LOG_VERBOSE:
118                priority = LOG_INFO;
119                break;
120        case PAM_LOG_NOTICE:
121                priority = LOG_NOTICE;
122                break;
123        case PAM_LOG_ERROR:
124        default:
125                priority = LOG_ERR;
126                break;
127        }
128        va_start(ap, fmt);
129        vsyslog(priority, fmt, ap);
130        va_end(ap);
131}
132
133#endif
134
135/*
136 * NOLIST
137 */
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