openpam_log.c revision 91094 
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 * $Id$
35 */
36
37#include <stdarg.h>
38#include <stdio.h>
39#include <stdlib.h>
40#include <syslog.h>
41
42#include <security/pam_appl.h>
43
44#include "openpam_impl.h"
45
46#if defined(openpam_log)
47
48/*
49 * Log a message through syslog(3)
50 */
51
52void
53_openpam_log(int level, const char *func, const char *fmt, ...)
54{
55	va_list ap;
56	char *format;
57	int priority;
58
59	switch (level) {
60	case PAM_LOG_DEBUG:
61		priority = LOG_DEBUG;
62		break;
63	case PAM_LOG_VERBOSE:
64		priority = LOG_INFO;
65		break;
66	case PAM_LOG_NOTICE:
67		priority = LOG_NOTICE;
68		break;
69	case PAM_LOG_ERROR:
70		priority = LOG_ERR;
71		break;
72	}
73	va_start(ap, fmt);
74	if ((format = malloc(strlen(func) + strlen(fmt) + 8)) != NULL) {
75		sprintf(format, "in %s(): %s", func, fmt);
76		vsyslog(priority, format, ap);
77		free(format);
78	} else {
79		vsyslog(priority, fmt, ap);
80	}
81	va_end(ap);
82}
83
84#else
85
86/*
87 * If openpam_log isn't defined as a macro, we're on a platform that
88 * doesn't support varadic macros (or it does but we aren't aware of
89 * it).  Do the next best thing.
90 */
91
92void
93openpam_log(int level, const char *fmt, ...)
94{
95	va_list ap;
96	int priority;
97
98	switch (level) {
99	case PAM_LOG_DEBUG:
100		priority = LOG_DEBUG;
101		break;
102	case PAM_LOG_VERBOSE:
103		priority = LOG_INFO;
104		break;
105	case PAM_LOG_NOTICE:
106		priority = LOG_NOTICE;
107		break;
108	case PAM_LOG_ERROR:
109		priority = LOG_ERR;
110		break;
111	}
112	va_start(ap, fmt);
113	vsyslog(priority, fmt, ap);
114	va_end(ap);
115}
116
117#endif
118