1/*
2 * Copyright (c) 1982, 1986, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)syslog.h 8.1 (Berkeley) 6/2/93
30 */
31
32#ifndef _SYS_SYSLOG_H
33#define _SYS_SYSLOG_H 1
34
35#include <features.h>
36#define __need___va_list
37#include <stdarg.h>
38
39/* This file defines _PATH_LOG. */
40#include <bits/syslog-path.h>
41
42/*
43 * priorities/facilities are encoded into a single 32-bit quantity, where the
44 * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
45 * (0-big number). Both the priorities and the facilities map roughly
46 * one-to-one to strings in the syslogd(8) source code. This mapping is
47 * included in this file.
48 *
49 * priorities (these are ordered)
50 */
51#define LOG_EMERG 0 /* system is unusable */
52#define LOG_ALERT 1 /* action must be taken immediately */
53#define LOG_CRIT 2 /* critical conditions */
54#define LOG_ERR 3 /* error conditions */
55#define LOG_WARNING 4 /* warning conditions */
56#define LOG_NOTICE 5 /* normal but significant condition */
57#define LOG_INFO 6 /* informational */
58#define LOG_DEBUG 7 /* debug-level messages */
59
60#define LOG_PRIMASK 0x07 /* mask to extract priority part (internal) */
61 /* extract priority */
62#define LOG_PRI(p) ((p) & LOG_PRIMASK)
63#define LOG_MAKEPRI(fac, pri) ((fac) | (pri))
64
65#ifdef SYSLOG_NAMES
66#define INTERNAL_NOPRI 0x10 /* the "no priority" priority */
67 /* mark "facility" */
68#define INTERNAL_MARK LOG_MAKEPRI(LOG_NFACILITIES << 3, 0)
69typedef struct _code {
70 char *c_name;
71 int c_val;
72} CODE;
73
74CODE prioritynames[] =
75 {
76 { "alert", LOG_ALERT },
77 { "crit", LOG_CRIT },
78 { "debug", LOG_DEBUG },
79 { "emerg", LOG_EMERG },
80 { "err", LOG_ERR },
81 { "error", LOG_ERR }, /* DEPRECATED */
82 { "info", LOG_INFO },
83 { "none", INTERNAL_NOPRI }, /* INTERNAL */
84 { "notice", LOG_NOTICE },
85 { "panic", LOG_EMERG }, /* DEPRECATED */
86 { "warn", LOG_WARNING }, /* DEPRECATED */
87 { "warning", LOG_WARNING },
88 { NULL, -1 }
89 };
90#endif
91
92/* facility codes */
93#define LOG_KERN (0<<3) /* kernel messages */
94#define LOG_USER (1<<3) /* random user-level messages */
95#define LOG_MAIL (2<<3) /* mail system */
96#define LOG_DAEMON (3<<3) /* system daemons */
97#define LOG_AUTH (4<<3) /* security/authorization messages */
98#define LOG_SYSLOG (5<<3) /* messages generated internally by syslogd */
99#define LOG_LPR (6<<3) /* line printer subsystem */
100#define LOG_NEWS (7<<3) /* network news subsystem */
101#define LOG_UUCP (8<<3) /* UUCP subsystem */
102#define LOG_CRON (9<<3) /* clock daemon */
103#define LOG_AUTHPRIV (10<<3) /* security/authorization messages (private) */
104#define LOG_FTP (11<<3) /* ftp daemon */
105
106 /* other codes through 15 reserved for system use */
107#define LOG_LOCAL0 (16<<3) /* reserved for local use */
108#define LOG_LOCAL1 (17<<3) /* reserved for local use */
109#define LOG_LOCAL2 (18<<3) /* reserved for local use */
110#define LOG_LOCAL3 (19<<3) /* reserved for local use */
111#define LOG_LOCAL4 (20<<3) /* reserved for local use */
112#define LOG_LOCAL5 (21<<3) /* reserved for local use */
113#define LOG_LOCAL6 (22<<3) /* reserved for local use */
114#define LOG_LOCAL7 (23<<3) /* reserved for local use */
115
116#define LOG_NFACILITIES 24 /* current number of facilities */
117#define LOG_FACMASK 0x03f8 /* mask to extract facility part */
118 /* facility of pri */
119#define LOG_FAC(p) (((p) & LOG_FACMASK) >> 3)
120
121#ifdef SYSLOG_NAMES
122CODE facilitynames[] =
123 {
124 { "auth", LOG_AUTH },
125 { "authpriv", LOG_AUTHPRIV },
126 { "cron", LOG_CRON },
127 { "daemon", LOG_DAEMON },
128 { "ftp", LOG_FTP },
129 { "kern", LOG_KERN },
130 { "lpr", LOG_LPR },
131 { "mail", LOG_MAIL },
132 { "mark", INTERNAL_MARK }, /* INTERNAL */
133 { "news", LOG_NEWS },
134 { "security", LOG_AUTH }, /* DEPRECATED */
135 { "syslog", LOG_SYSLOG },
136 { "user", LOG_USER },
137 { "uucp", LOG_UUCP },
138 { "local0", LOG_LOCAL0 },
139 { "local1", LOG_LOCAL1 },
140 { "local2", LOG_LOCAL2 },
141 { "local3", LOG_LOCAL3 },
142 { "local4", LOG_LOCAL4 },
143 { "local5", LOG_LOCAL5 },
144 { "local6", LOG_LOCAL6 },
145 { "local7", LOG_LOCAL7 },
146 { NULL, -1 }
147 };
148#endif
149
150/*
151 * arguments to setlogmask.
152 */
153#define LOG_MASK(pri) (1 << (pri)) /* mask for one priority */
154#define LOG_UPTO(pri) ((1 << ((pri)+1)) - 1) /* all priorities through pri */
155
156/*
157 * Option flags for openlog.
158 *
159 * LOG_ODELAY no longer does anything.
160 * LOG_NDELAY is the inverse of what it used to be.
161 */
162#define LOG_PID 0x01 /* log the pid with each message */
163#define LOG_CONS 0x02 /* log on the console if errors in sending */
164#define LOG_ODELAY 0x04 /* delay open until first syslog() (default) */
165#define LOG_NDELAY 0x08 /* don't delay open */
166#define LOG_NOWAIT 0x10 /* don't wait for console forks: DEPRECATED */
167#define LOG_PERROR 0x20 /* log to stderr as well */
168
169__BEGIN_DECLS
170
171/* Close descriptor used to write to system logger.
172
173 This function is a possible cancellation point and therefore not
174 marked with __THROW. */
175extern void closelog (void);
176
177/* Open connection to system logger.
178
179 This function is a possible cancellation point and therefore not
180 marked with __THROW. */
181extern void openlog (const char *__ident, int __option, int __facility);
182
183/* Set the log mask level. */
184extern int setlogmask (int __mask) __THROW;
185
186/* Generate a log message using FMT string and option arguments.
187
188 This function is a possible cancellation point and therefore not
189 marked with __THROW. */
190extern void syslog (int __pri, const char *__fmt, ...)
191 __attribute__ ((__format__ (__printf__, 2, 3)));
192
193#ifdef __USE_MISC
194/* Generate a log message using FMT and using arguments pointed to by AP.
195
196 This function is not part of POSIX and therefore no official
197 cancellation point. But due to similarity with an POSIX interface
198 or due to the implementation it is a cancellation point and
199 therefore not marked with __THROW. */
200extern void vsyslog (int __pri, const char *__fmt, __gnuc_va_list __ap)
201 __attribute__ ((__format__ (__printf__, 2, 0)));
202#endif
203
204
205/* Define some macros helping to catch buffer overflows. */
206#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
207# include <bits/syslog.h>
208#endif
209#ifdef __LDBL_COMPAT
210# include <bits/syslog-ldbl.h>
211#endif
212
213__END_DECLS
214
215#endif /* sys/syslog.h */
216