syslog(3) [ultrix man page]

syslog(3)						     Library Functions Manual							 syslog(3)

Name
       syslog, openlog, closelog - control system log

Syntax
       #include <syslog.h>

       openlog(ident, logstat)
       char *ident;

       void syslog(priority, message, parameters ... )
       char *message;

       void closelog()

Description
       The  subroutine	arranges  to  write  the message onto the system log maintained by The message is tagged with priority and it looks like a
       string except that %m is replaced by the current error message (collected from A trailing new line is added if  needed.	 This  message	is
       read by and output to the system console or files as appropriate.  The maximum number of parameters is 5.

       If  special  processing is needed, can be called to initialize the log file.  Parameters are ident which is prepended to every message, and
       logstat which is a bit field indicating special status; current values are:

       LOG_PID	log the process id with each message; useful for identifying daemons.

       The returns zero on success.  If it cannot open the file it writes on instead and returns -1.

       The can be used to close the log file.

Examples
       syslog(LOG_SALERT, "who: internal error 23");

       openlog("serverftp", LOG_PID);
       syslog(LOG_INFO, "Connection from host %d", CallingHost);

See Also
       syslog(8)

																	 syslog(3)

SYSLOG(3)								 1								 SYSLOG(3)

syslog - Generate a system log message

SYNOPSIS

       bool syslog (int  $priority, string  $message)

DESCRIPTION

       syslog(3) generates a log message that will be distributed by the system logger.

	For  information on setting up a user defined log handler, see the syslog.conf(5) Unix manual page. More information on the syslog facili-
       ties and option can be found in the man pages for syslog(3) on Unix machines.

PARAMETERS

	      o $priority
		-$priority is a combination of the facility and the level. Possible values are:

	      syslog(3) Priorities (in descending order)

	      +------------+------------------------------------+
	      | Constant   |					|
	      | 	   |					|
	      | 	   |		Description		|
	      | 	   |					|
	      +------------+------------------------------------+
	      | 	   |					|
	      | LOG_EMERG  |					|
	      | 	   |					|
	      | 	   |	     system is unusable 	|
	      | 	   |					|
	      | 	   |					|
	      | LOG_ALERT  |					|
	      | 	   |					|
	      | 	   |  action must be taken immediately	|
	      | 	   |					|
	      | 	   |					|
	      | LOG_CRIT   |					|
	      | 	   |					|
	      | 	   |	    critical conditions 	|
	      | 	   |					|
	      | 	   |					|
	      |  LOG_ERR   |					|
	      | 	   |					|
	      | 	   |	      error conditions		|
	      | 	   |					|
	      | 	   |					|
	      |LOG_WARNING |					|
	      | 	   |					|
	      | 	   |	     warning conditions 	|
	      | 	   |					|
	      | 	   |					|
	      |LOG_NOTICE  |					|
	      | 	   |					|
	      | 	   | normal, but significant, condition |
	      | 	   |					|
	      | 	   |					|
	      | LOG_INFO   |					|
	      | 	   |					|
	      | 	   |	   informational message	|
	      | 	   |					|
	      | 	   |					|
	      | LOG_DEBUG  |					|
	      | 	   |					|
	      | 	   |	    debug-level message 	|
	      | 	   |					|
	      +------------+------------------------------------+
	      o $message
		- The message to send, except that the two characters %m will be replaced by the error message string (strerror) corresponding	to
		the present value of errno.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Using syslog(3)

	      <?php
	      // open syslog, include the process ID and also send
	      // the log to standard error, and use a user defined
	      // logging mechanism
	      openlog("myScriptLog", LOG_PID | LOG_PERROR, LOG_LOCAL0);

	      // some code

	      if (authorized_client()) {
		  // do something
	      } else {
		  // unauthorized client!
		  // log the attempt
		  $access = date("Y/m/d H:i:s");
		  syslog(LOG_WARNING, "Unauthorized client: $access {$_SERVER['REMOTE_ADDR']} ({$_SERVER['HTTP_USER_AGENT']})");
	      }

	      closelog();
	      ?>

NOTES

	On Windows NT, the syslog service is emulated using the Event Log.

       Note

	       Use of LOG_LOCAL0 through LOG_LOCAL7 for the $facility parameter of openlog(3) is not available in Windows.

SEE ALSO

       openlog(3), closelog(3).

PHP Documentation Group 														 SYSLOG(3)