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1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * 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  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 #ifndef _SYSLOG_H
29 #define _SYSLOG_H
30 
31 #include <stdio.h>
32 #include <sys/cdefs.h>
33 #include <stdarg.h>
34 
35 __BEGIN_DECLS
36 
37 /* Alert levels */
38 #define LOG_EMERG	0
39 #define LOG_ALERT	1
40 #define LOG_CRIT	2
41 #define LOG_ERR		3
42 #define LOG_WARNING	4
43 #define LOG_NOTICE	5
44 #define LOG_INFO	6
45 #define LOG_DEBUG	7
46 
47 #define LOG_PRIMASK	7
48 #define LOG_PRI(x)	((x) & LOG_PRIMASK)
49 
50 
51 /* Facilities; not actually used */
52 #define LOG_KERN	0000
53 #define LOG_USER	0010
54 #define LOG_MAIL	0020
55 #define LOG_DAEMON	0030
56 #define LOG_AUTH	0040
57 #define LOG_SYSLOG	0050
58 #define LOG_LPR		0060
59 #define LOG_NEWS	0070
60 #define LOG_UUCP	0100
61 #define LOG_CRON	0110
62 #define LOG_AUTHPRIV	0120
63 #define LOG_FTP		0130
64 #define LOG_LOCAL0	0200
65 #define LOG_LOCAL1	0210
66 #define LOG_LOCAL2	0220
67 #define LOG_LOCAL3	0230
68 #define LOG_LOCAL4	0240
69 #define LOG_LOCAL5	0250
70 #define LOG_LOCAL6	0260
71 #define LOG_LOCAL7	0270
72 
73 #define LOG_FACMASK	01770
74 #define LOG_FAC(x)	(((x) >> 3) & (LOG_FACMASK >> 3))
75 
76 #define	LOG_MASK(pri)	(1 << (pri))		/* mask for one priority */
77 #define	LOG_UPTO(pri)	((1 << ((pri)+1)) - 1)	/* all priorities through pri */
78 
79 /* openlog() flags; only LOG_PID and LOG_PERROR supported */
80 #define        LOG_PID         0x01    /* include pid with message */
81 #define        LOG_CONS        0x02    /* write to console on logger error */
82 #define        LOG_ODELAY      0x04    /* delay connection until syslog() */
83 #define        LOG_NDELAY      0x08    /* open connection immediately */
84 #define        LOG_NOWAIT      0x10    /* wait for child processes (unused on linux) */
85 #define        LOG_PERROR      0x20    /* additional logging to stderr */
86 
87 /* BIONIC: the following definitions are from OpenBSD's sys/syslog.h
88  */
89 struct syslog_data {
90 	int	log_file;
91         int	connected;
92         int	opened;
93         int	log_stat;
94         const char 	*log_tag;
95         int 	log_fac;
96         int 	log_mask;
97 };
98 
99 #define SYSLOG_DATA_INIT {-1, 0, 0, 0, (const char *)0, LOG_USER, 0xff}
100 
101 #define _PATH_LOG  "/dev/kmsg"
102 
103 extern void	closelog(void);
104 extern void	openlog(const char *, int, int);
105 extern int	setlogmask(int);
106 extern void	syslog(int, const char *, ...);
107 extern void	vsyslog(int, const char *, va_list);
108 extern void	closelog_r(struct syslog_data *);
109 extern void	openlog_r(const char *, int, int, struct syslog_data *);
110 extern int	setlogmask_r(int, struct syslog_data *);
111 extern void	syslog_r(int, struct syslog_data *, const char *, ...);
112 extern void	vsyslog_r(int, struct syslog_data *, const char *, va_list);
113 
114 __END_DECLS
115 
116 #endif /* _SYSLOG_H */
117