libc/include/syslog.h

/*
 * Copyright (C) 2008 The Android Open Source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _SYSLOG_H
#define _SYSLOG_H

#include <stdio.h>
#include <sys/cdefs.h>
#include <stdarg.h>

__BEGIN_DECLS

/* Alert levels */
#define LOG_EMERG	0
#define LOG_ALERT	1
#define LOG_CRIT	2
#define LOG_ERR		3
#define LOG_WARNING	4
#define LOG_NOTICE	5
#define LOG_INFO	6
#define LOG_DEBUG	7

#define LOG_PRIMASK	7
#define LOG_PRI(x)	((x) & LOG_PRIMASK)


/* Facilities; not actually used */
#define LOG_KERN	0000
#define LOG_USER	0010
#define LOG_MAIL	0020
#define LOG_DAEMON	0030
#define LOG_AUTH	0040
#define LOG_SYSLOG	0050
#define LOG_LPR		0060
#define LOG_NEWS	0070
#define LOG_UUCP	0100
#define LOG_CRON	0110
#define LOG_AUTHPRIV	0120
#define LOG_FTP		0130
#define LOG_LOCAL0	0200
#define LOG_LOCAL1	0210
#define LOG_LOCAL2	0220
#define LOG_LOCAL3	0230
#define LOG_LOCAL4	0240
#define LOG_LOCAL5	0250
#define LOG_LOCAL6	0260
#define LOG_LOCAL7	0270

#define LOG_FACMASK	01770
#define LOG_FAC(x)	(((x) >> 3) & (LOG_FACMASK >> 3))

#define	LOG_MASK(pri)	(1 << (pri))		/* mask for one priority */
#define	LOG_UPTO(pri)	((1 << ((pri)+1)) - 1)	/* all priorities through pri */

/* openlog() flags; only LOG_PID and LOG_PERROR supported */
#define        LOG_PID         0x01    /* include pid with message */
#define        LOG_CONS        0x02    /* write to console on logger error */
#define        LOG_ODELAY      0x04    /* delay connection until syslog() */
#define        LOG_NDELAY      0x08    /* open connection immediately */
#define        LOG_NOWAIT      0x10    /* wait for child processes (unused on linux) */
#define        LOG_PERROR      0x20    /* additional logging to stderr */

/* BIONIC: the following definitions are from OpenBSD's sys/syslog.h
 */
struct syslog_data {
	int	log_file;
        int	connected;
        int	opened;
        int	log_stat;
        const char 	*log_tag;
        int 	log_fac;
        int 	log_mask;
};

#define SYSLOG_DATA_INIT {-1, 0, 0, 0, (const char *)0, LOG_USER, 0xff}

#define _PATH_LOG  "/dev/syslog"

extern void	closelog(void);
extern void	openlog(const char *, int, int);
extern int	setlogmask(int);
extern void	syslog(int, const char *, ...) __printflike(2, 3);
extern void	vsyslog(int, const char *, va_list) __printflike(2, 0);
extern void	closelog_r(struct syslog_data *);
extern void	openlog_r(const char *, int, int, struct syslog_data *);
extern int	setlogmask_r(int, struct syslog_data *);
extern void	syslog_r(int, struct syslog_data *, const char *, ...) __printflike(3, 4);
extern void	vsyslog_r(int, struct syslog_data *, const char *, va_list) __printflike(3, 0);

__END_DECLS

#endif /* _SYSLOG_H */