2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2011 Dag-Erling Smørgrav
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.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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
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
35 * $OpenPAM: openpam_log.c 938 2017-04-30 21:34:42Z des $
48 #include <security/pam_appl.h>
50 #include "openpam_impl.h"
51 #include "openpam_asprintf.h"
53 int openpam_debug = 0;
55 #if !defined(openpam_log)
60 * Log a message through syslog
64 openpam_log(int level, const char *fmt, ...)
71 case PAM_LOG_LIBDEBUG:
81 priority = LOG_NOTICE;
90 vsyslog(priority, fmt, ap);
98 _openpam_log(int level, const char *func, const char *fmt, ...)
106 case PAM_LOG_LIBDEBUG:
110 priority = LOG_DEBUG;
112 case PAM_LOG_VERBOSE:
116 priority = LOG_NOTICE;
125 if (asprintf(&format, "in %s(): %s", func, fmt) > 0) {
127 vsyslog(priority, format, ap);
131 vsyslog(priority, fmt, ap);
140 * The =openpam_log function logs messages using =syslog.
141 * It is primarily intended for internal use by the library and modules.
143 * The =level argument indicates the importance of the message.
144 * The following levels are defined:
147 * Debugging messages.
148 * For internal use only.
150 * Debugging messages.
151 * These messages are normally not logged unless the global
152 * integer variable :openpam_debug is set to a non-zero
153 * value, in which case they are logged with a =syslog
154 * priority of =LOG_DEBUG.
156 * Information about the progress of the authentication
157 * process, or other non-essential messages.
158 * These messages are logged with a =syslog priority of
161 * Messages relating to non-fatal errors.
162 * These messages are logged with a =syslog priority of
165 * Messages relating to serious errors.
166 * These messages are logged with a =syslog priority of
169 * The remaining arguments are a =printf format string and the
170 * corresponding arguments.
172 * The =openpam_log function does not modify the value of :errno.