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syslog.h File Reference

System logging capabilities. More...

Defines
#define	LOG_FTP   (11 << 3)
#define	LOG_MASK(pri)   (1 << (pri))
	Converts a priority definition for use in setlogmask().
Priorities for syslog(), log_team() and log_thread()
#define	LOG_ALERT   1
	A condition to that should be corrected immediately.
#define	LOG_CRIT   2
	Critical conditions like hard drive errors.
#define	LOG_DEBUG   7
	Debug information.
#define	LOG_EMERG   0
	A panic condition.
#define	LOG_ERR   3
	Errors.
#define	LOG_INFO   6
	Information, like versions and so.
#define	LOG_NOTICE   5
	Notices, instructions on how to use certain configuration options.
#define	LOG_PANIC   LOG_EMERG
	An alias for LOG_EMERG.
#define	LOG_WARNING   4
	Warnings.
Facilities for openlog()
#define	LOG_AUTH   (4 << 3)
	Standard POSIX facility(?) for messages by the authentication services.
#define	LOG_AUTHPRIV   (10 << 3)
	Reserved for private (?) messages that relate to authentication.
#define	LOG_CRON   (9 << 3)
	Reserved for messages generated by the CRON daemon.
#define	LOG_DAEMON   (3 << 3)
	Standard POSIX (?) facility for messages by daemons (and Haiku servers).
#define	LOG_KERN   (0 << 3)
	Reserved for messages generated by the kernel.
#define	LOG_LOCAL0   (16 << 3)
	Use this for local use.
#define	LOG_LOCAL1   (17 << 3)
	Use this for local use.
#define	LOG_LOCAL2   (18 << 3)
	Use this for local use.
#define	LOG_LOCAL3   (19 << 3)
	Use this for local use.
#define	LOG_LOCAL4   (20 << 3)
	Use this for local use.
#define	LOG_LOCAL5   (21 << 3)
	Use this for local use.
#define	LOG_LOCAL6   (22 << 3)
	Use this for local use.
#define	LOG_LOCAL7   (23 << 3)
	Use this for local use.
#define	LOG_LPR   (6 << 3)
	Reserved for messages generated by the UNIX lpr printing tool.
#define	LOG_MAIL   (2 << 3)
	Standard (?) POSIX facility for messages by the mailing daemon.
#define	LOG_NEWS   (7 << 3)
	Reserved for messages generated by something UNIXy that does something with NEWS.
#define	LOG_SYSLOG   (5 << 3)
	Reserved for messages generated by the syslog daemon.
#define	LOG_USER   (1 << 3)
	Reserved for messages generated by user processes.
#define	LOG_UUCP   (8 << 3)
	Reserved for messages generated by UUCP.
Options for openlog()
#define	LOG_CONS   (2 << 12)
	Log to the system console on error.
#define	LOG_NDELAY   (8 << 12)
	Connect to the syslog daemon immediately.
#define	LOG_NOWAIT   (64 << 12)
	Do not wait for child processes.
#define	LOG_ODELAY   (4 << 12)
	Delay open until syslog() is called.
#define	LOG_PERROR   (32 << 12)
	Dump to stderr as well.
#define	LOG_PID   (1 << 12)
	Log the process (thread/team) ID with each message.
#define	LOG_SERIAL   (16 << 12)
	Dump to serial output as well.
Functions
void	closelog (void)
	Closes the current log session.
void	closelog_team (void)
	Closes the log.
void	closelog_thread (void)
	Closes the log.
void	log_team (int priority, const char *message,...)
	sends a message to the system log
void	log_thread (int priority, const char *message,...)
	sends a message to the system log
void	openlog (const char *ident, int options, int facility)
	Starts a log session, and sets some output options.
void	openlog_team (const char *ident, int logopt, int facility)
	Starts a log session, and sets some output options.
void	openlog_thread (const char *ident, int logopt, int facility)
	Starts a log session, and sets some output options.
int	setlogmask (int priorityMask)
	sets the logging priority mask
int	setlogmask_team (int priorityMask)
	sets the logging priority mask
int	setlogmask_thread (int priorityMask)
	sets the logging priority mask
void	syslog (int priority, const char *message,...)
	sends a message to the system log
void	vsyslog (int priority, const char *message, va_list args)

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Detailed Description

System logging capabilities.

The functions described here are interacting with the syslog_daemon, a server that provides the system logging capabilities. The log can be found in /var/log/syslog.

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Define Documentation

#define LOG_SERIAL   (16 << 12)

Dump to serial output as well.

Attention:

This is not yet implemented

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Function Documentation

void openlog	(	const char *	ident,
		int	options,
		int	facility
	)

Starts a log session, and sets some output options.

Like openlog_thread() this function defines the log session in thread context; the global options set by openlog_team() are not affected by this function.

void openlog_team	(	const char *	ident,
		int	logopt,
		int	facility
	)

Starts a log session, and sets some output options.

This function defines the team-wide logging options. Thread local sessions started with openlog() or openlog_thread() will inherit the options of the global session.

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The Haiku Book pre-R1 - syslog.h File Reference
Generated on 14 Feb 2008