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 syslog(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 priorities.

       The setlogmask() function sets this logmask for the calling 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 corresponding to a priority p is LOG_MASK(p).  Some systems also provide a macro LOG_UPTO(p) for the mask of all pri-
       orities in the above list up to and including p.

RETURN VALUE
       This function returns the previous log priority mask.

ERRORS
       None.

CONFORMING TO
       POSIX.1-2001.  Note that the description in POSIX.1-2001 is flawed.

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

COLOPHON
       This page is part of release 3.25 of the Linux man-pages project.  A description of the project,  and  information  about
       reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                                           2001-10-05                                              SETLOGMASK(3)