setlogmask

SETLOGMASK(3)		  Linux Programmer’s Manual		SETLOGMASK(3)



NAME
       setlogmask - set log priority mask

SYNOPSIS
       #include <syslog.h>

       int setlogmask(int mask);

DESCRIPTION
       A  process has a log priority mask that determines which calls to sys-
       log(3) may be logged. All other calls will  be  ignored.	  Logging  is
       enabled	for  the  priorities  that  have the corresponding bit set in
       mask.  The initial mask is such that logging is enabled for all prior-
       ities.

       The  setlogmask()  function sets this logmask for the current process,
       and returns the previous mask.  If the mask argument is 0, the current
       logmask is not modified.

       The  eight  priorities  are  LOG_EMERG,	LOG_ALERT, LOG_CRIT, LOG_ERR,
       LOG_WARNING, LOG_NOTICE, LOG_INFO and LOG_DEBUG.	 The bit  correspond-
       ing to a priority p is LOG_MASK(p).  Some systems also provide a macro
       LOG_UPTO(p) for the mask of all priorities in the above list up to and
       including p.

RETURN VALUE
       This function returns the previous log priority mask.

ERRORS
       None.

CONFORMING TO
       XPG4.  Note that the description in POSIX 1003.1-2001 is flawed.

SEE ALSO
       closelog(3), openlog(3), syslog(3)



				  2001-10-05			SETLOGMASK(3)