gcc41: update README.DELETED
[dragonfly.git] / contrib / openpam / lib / openpam_log.c
blobe49229484b9bb9bdab14038d416597ecded2d4a6
1 /*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2007 Dag-Erling Smørgrav
4 * All rights reserved.
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
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.
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.
35 * $Id: openpam_log.c 408 2007-12-21 11:36:24Z des $
38 #include <ctype.h>
39 #include <stdarg.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <syslog.h>
45 #include <security/pam_appl.h>
47 #include "openpam_impl.h"
49 #ifdef OPENPAM_DEBUG
50 int _openpam_debug = 1;
51 #else
52 int _openpam_debug = 0;
53 #endif
55 #if !defined(openpam_log)
58 * OpenPAM extension
60 * Log a message through syslog
63 void
64 openpam_log(int level, const char *fmt, ...)
66 va_list ap;
67 int priority;
69 switch (level) {
70 case PAM_LOG_DEBUG:
71 if (!_openpam_debug)
72 return;
73 priority = LOG_DEBUG;
74 break;
75 case PAM_LOG_VERBOSE:
76 priority = LOG_INFO;
77 break;
78 case PAM_LOG_NOTICE:
79 priority = LOG_NOTICE;
80 break;
81 case PAM_LOG_ERROR:
82 default:
83 priority = LOG_ERR;
84 break;
86 va_start(ap, fmt);
87 vsyslog(priority, fmt, ap);
88 va_end(ap);
91 #else
93 void
94 _openpam_log(int level, const char *func, const char *fmt, ...)
96 va_list ap;
97 char *format;
98 int priority;
100 switch (level) {
101 case PAM_LOG_DEBUG:
102 if (!_openpam_debug)
103 return;
104 priority = LOG_DEBUG;
105 break;
106 case PAM_LOG_VERBOSE:
107 priority = LOG_INFO;
108 break;
109 case PAM_LOG_NOTICE:
110 priority = LOG_NOTICE;
111 break;
112 case PAM_LOG_ERROR:
113 default:
114 priority = LOG_ERR;
115 break;
117 va_start(ap, fmt);
118 if (asprintf(&format, "in %s(): %s", func, fmt) > 0) {
119 vsyslog(priority, format, ap);
120 FREE(format);
121 } else {
122 vsyslog(priority, fmt, ap);
124 va_end(ap);
127 #endif
130 * The =openpam_log function logs messages using =syslog.
131 * It is primarily intended for internal use by the library and modules.
133 * The =level argument indicates the importance of the message.
134 * The following levels are defined:
136 * =PAM_LOG_DEBUG:
137 * Debugging messages.
138 * These messages are normally not logged unless the global
139 * integer variable :_openpam_debug is set to a non-zero
140 * value, in which case they are logged with a =syslog
141 * priority of =LOG_DEBUG.
142 * =PAM_LOG_VERBOSE:
143 * Information about the progress of the authentication
144 * process, or other non-essential messages.
145 * These messages are logged with a =syslog priority of
146 * =LOG_INFO.
147 * =PAM_LOG_NOTICE:
148 * Messages relating to non-fatal errors.
149 * These messages are logged with a =syslog priority of
150 * =LOG_NOTICE.
151 * =PAM_LOG_ERROR:
152 * Messages relating to serious errors.
153 * These messages are logged with a =syslog priority of
154 * =LOG_ERR.
156 * The remaining arguments are a =printf format string and the
157 * corresponding arguments.