source: openpam/trunk/lib/openpam_log.c @ 51

Last change on this file since 51 was 51, checked in by Dag-Erling Smørgrav, 19 years ago

Trim whitespace off the end of the format string, and add exactly
one newline character.

If DEBUG is defined, echo the log message to STDERR.

Sponsored by: DARPA, NAI Labs

  • Property svn:keywords set to Id LastChangedRevision HeadURL LastChangedDate LastChangedBy
File size: 3.3 KB
Line 
1/*-
2 * Copyright (c) 2002 Networks Associates Technologies, Inc.
3 * All rights reserved.
4 *
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.
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 * $Id: openpam_log.c 51 2002-02-13 00:39:32Z des $
35 */
36
37#include <ctype.h>
38#include <stdarg.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <syslog.h>
42
43#include <security/pam_appl.h>
44
45#include "openpam_impl.h"
46
47#if defined(openpam_log)
48
49/*
50 * Log a message through syslog(3)
51 */
52
53void
54_openpam_log(int level, const char *func, const char *fmt, ...)
55{
56        va_list ap;
57        char *format;
58        int len, priority;
59
60        switch (level) {
61        case PAM_LOG_DEBUG:
62                priority = LOG_DEBUG;
63                break;
64        case PAM_LOG_VERBOSE:
65                priority = LOG_INFO;
66                break;
67        case PAM_LOG_NOTICE:
68                priority = LOG_NOTICE;
69                break;
70        case PAM_LOG_ERROR:
71                priority = LOG_ERR;
72                break;
73        }
74        va_start(ap, fmt);
75        for (len = strlen(fmt); len > 0 && isspace(fmt[len]); len--)
76                /* nothing */;
77        if ((format = malloc(strlen(func) + len + 8)) != NULL) {
78                sprintf(format, "in %s(): %.*s\n", func, len, fmt);
79                vsyslog(priority, format, ap);
80#ifdef DEBUG
81                vfprintf(stderr, format, ap);
82#endif
83                free(format);
84        } else {
85                vsyslog(priority, fmt, ap);
86        }
87        va_end(ap);
88}
89
90#else
91
92/*
93 * If openpam_log isn't defined as a macro, we're on a platform that
94 * doesn't support varadic macros (or it does but we aren't aware of
95 * it).  Do the next best thing.
96 */
97
98void
99openpam_log(int level, const char *fmt, ...)
100{
101        va_list ap;
102        int priority;
103
104        switch (level) {
105        case PAM_LOG_DEBUG:
106                priority = LOG_DEBUG;
107                break;
108        case PAM_LOG_VERBOSE:
109                priority = LOG_INFO;
110                break;
111        case PAM_LOG_NOTICE:
112                priority = LOG_NOTICE;
113                break;
114        case PAM_LOG_ERROR:
115                priority = LOG_ERR;
116                break;
117        }
118        va_start(ap, fmt);
119        vsyslog(priority, fmt, ap);
120        va_end(ap);
121}
122
123#endif
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