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18.2.3 closelog

The symbols referred to in this section are declared in the file

 -- Function: void closelog (void)
     `closelog' closes the current Syslog connection, if there is one.
     This includes closing the `dev/log' socket, if it is open.
     `closelog' also sets the identification string for Syslog messages
     back to the default, if `openlog' was called with a non-NULL
     argument to IDENT.  The default identification string is the
     program name taken from argv[0].

     If you are writing shared library code that uses `openlog' to
     generate custom syslog output, you should use `closelog' to drop
     the GNU C library's internal reference to the IDENT pointer when
     you are done.  Please read the section on `openlog' for more
     information: *Note openlog::.

     `closelog' does not flush any buffers.  You do not have to call
     `closelog' before re-opening a Syslog connection with `initlog'.
     Syslog connections are automatically closed on exec or exit.