Submitting Syslog Messages

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The GNU C library provides functions to submit messages to the Syslog facility:

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• openlog :: Open connection to Syslog
• syslog; vsyslog :: Submit message to Syslog
• closelog :: Close connection to Syslog
• setlogmask :: Cause certain messages to be ignored
• Syslog Example :: Example of all of the above

These functions only work to submit messages to the Syslog facility on the same system. To submit a message to the Syslog facility on another system, use the socket I/O functions to write a UDP datagram to the syslog UDP port on that system. Sockets.