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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