c - What is the syslog() facility if none is net using openlog() -


i trying use syslog() , reading through man pages tells me in openlog(), "the facility argument establishes default used if none specified in subsequent calls syslog()"

so understand, way : 1. call openlog set facility 2. call syslog() log. 3. call closelog().

but if not call openlog() before calling syslog()? facility then? meant "establishes default used if none specified". can 1 specified, if not openlog()?

aah think got it. think means for

syslog(int priority, const char *message, ...);

here priority can multiple flags, given in freebsd man page example :

syslog(log_info|log_local2, "foobar error: %m");

here facility log_local2 , priority log_info. facility mentioned in openlog() take effect if none provided in call syslog() above.


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