1 /*	$MirOS: src/sys/sys/syslog.h,v 1.3 2013/10/31 20:07:00 tg Exp $ */
2 /*	$OpenBSD: syslog.h,v 1.11 2003/08/24 01:27:07 avsm Exp $	*/
3 /*	$NetBSD: syslog.h,v 1.14 1996/04/03 20:46:44 christos Exp $	*/
4 
5 /*
6  * Copyright © 2013
7  *	Thorsten “mirabilos” Glaser <tg@mirbsd.org>
8  * Copyright (c) 1982, 1986, 1988, 1993
9  *	The Regents of the University of California.  All rights reserved.
10  *
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. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
34  *
35  *	@(#)syslog.h	8.1 (Berkeley) 6/2/93
36  */
37 
38 #ifndef _SYS_SYSLOG_H_
39 #define _SYS_SYSLOG_H_
40 
41 #define	_PATH_LOG	"/dev/log"
42 
43 /*
44  * priorities/facilities are encoded into a single 32-bit quantity, where the
45  * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
46  * (0-big number).  Both the priorities and the facilities map roughly
47  * one-to-one to strings in the syslogd(8) source code.  This mapping is
48  * included in this file.
49  *
50  * priorities (these are ordered)
51  */
52 #define	LOG_EMERG	0	/* system is unusable */
53 #define	LOG_ALERT	1	/* action must be taken immediately */
54 #define	LOG_CRIT	2	/* critical conditions */
55 #define	LOG_ERR		3	/* error conditions */
56 #define	LOG_WARNING	4	/* warning conditions */
57 #define	LOG_NOTICE	5	/* normal but significant condition */
58 #define	LOG_INFO	6	/* informational */
59 #define	LOG_DEBUG	7	/* debug-level messages */
60 
61 #define	LOG_PRIMASK	0x07	/* mask to extract priority part (internal) */
62 				/* extract priority */
63 #define	LOG_PRI(p)	((p) & LOG_PRIMASK)
64 #define	LOG_MAKEPRI(fac, pri)	(((fac) << 3) | (pri))
65 
66 #ifdef SYSLOG_NAMES
67 #define	INTERNAL_NOPRI	0x10	/* the "no priority" priority */
68 				/* mark "facility" */
69 #define	INTERNAL_MARK	LOG_MAKEPRI(LOG_NFACILITIES, 0)
70 typedef struct _code {
71 	char	*c_name;
72 	int	c_val;
73 } CODE;
74 
75 CODE prioritynames[] = {
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
122 CODE facilitynames[] = {
123 	{ "auth",	LOG_AUTH },
124 	{ "authpriv",	LOG_AUTHPRIV },
125 	{ "cron", 	LOG_CRON },
126 	{ "daemon",	LOG_DAEMON },
127 	{ "ftp",	LOG_FTP },
128 	{ "kern",	LOG_KERN },
129 	{ "lpr",	LOG_LPR },
130 	{ "mail",	LOG_MAIL },
131 	{ "mark", 	INTERNAL_MARK },	/* INTERNAL */
132 	{ "news",	LOG_NEWS },
133 	{ "security",	LOG_AUTH },		/* DEPRECATED */
134 	{ "syslog",	LOG_SYSLOG },
135 	{ "user",	LOG_USER },
136 	{ "uucp",	LOG_UUCP },
137 	{ "local0",	LOG_LOCAL0 },
138 	{ "local1",	LOG_LOCAL1 },
139 	{ "local2",	LOG_LOCAL2 },
140 	{ "local3",	LOG_LOCAL3 },
141 	{ "local4",	LOG_LOCAL4 },
142 	{ "local5",	LOG_LOCAL5 },
143 	{ "local6",	LOG_LOCAL6 },
144 	{ "local7",	LOG_LOCAL7 },
145 	{ NULL,		-1 },
146 };
147 #endif
148 
149 /* Used by reentrant functions */
150 
151 struct syslog_data {
152 	int	log_file;
153 	int	connected;
154 	int	opened;
155 	int	log_stat;
156 	const char 	*log_tag;
157 	int 	log_fac;
158 	int 	log_mask;
159 };
160 
161 #define SYSLOG_DATA_INIT {-1, 0, 0, 0, (const char *)0, LOG_USER, 0xff}
162 
163 #ifdef _KERNEL
164 #define	LOG_PRINTF	-1	/* pseudo-priority to indicate use of printf */
165 #endif
166 
167 /*
168  * arguments to setlogmask.
169  */
170 #define	LOG_MASK(pri)	(1 << (pri))		/* mask for one priority */
171 #define	LOG_UPTO(pri)	((1 << ((pri)+1)) - 1)	/* all priorities through pri */
172 
173 /*
174  * Option flags for openlog.
175  *
176  * LOG_ODELAY no longer does anything.
177  * LOG_NDELAY is the inverse of what it used to be.
178  */
179 #define	LOG_PID		0x01	/* log the pid with each message */
180 #define	LOG_CONS	0x02	/* log on the console if errors in sending */
181 #define	LOG_ODELAY	0x04	/* delay open until first syslog() (default) */
182 #define	LOG_NDELAY	0x08	/* don't delay open */
183 #define	LOG_NOWAIT	0x10	/* don't wait for console forks: DEPRECATED */
184 #define	LOG_PERROR	0x20	/* log to stderr as well */
185 
186 #ifndef _KERNEL
187 
188 /*
189  * Don't use va_list in the vsyslog() prototype.   Va_list is typedef'd in two
190  * places (<machine/varargs.h> and <machine/stdarg.h>), so if we include one
191  * of them here we may collide with the utility's includes.  It's unreasonable
192  * for utilities to have to include one of them to include syslog.h, so we get
193  * _BSD_VA_LIST_ from <machine/ansi.h> and use it.
194  */
195 #include <machine/ansi.h>
196 #include <sys/cdefs.h>
197 
198 __BEGIN_DECLS
199 void	closelog(void);
200 void	openlog(const char *, int, int);
201 int	setlogmask(int);
202 void	syslog(int, const char *, ...)
203     __attribute__((__format__(__syslog__, 2, 3)));
204 void	vsyslog(int, const char *, _BSD_VA_LIST_)
205     __attribute__((__format__(__syslog__, 2, 0)));
206 void	closelog_r(struct syslog_data *);
207 void	openlog_r(const char *, int, int, struct syslog_data *);
208 int	setlogmask_r(int, struct syslog_data *);
209 void	syslog_r(int, struct syslog_data *, const char *, ...)
210     __attribute__((__format__(__syslog__, 3, 4)));
211 void	vsyslog_r(int, struct syslog_data *, const char *, _BSD_VA_LIST_)
212     __attribute__((__format__(__syslog__, 3, 0)));
213 __END_DECLS
214 
215 #else /* !_KERNEL */
216 
217 void	logpri(int);
218 void	log(int, const char *, ...)
219     __attribute__((__format__(__kprintf__, 2, 3)));
220 int	addlog(const char *, ...)
221     __attribute__((__format__(__kprintf__, 1, 2)));
222 void	logwakeup(void);
223 
224 #endif /* !_KERNEL */
225 #endif /* !_SYS_SYSLOG_H_ */
226 
227