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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 priorities 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

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                                  2001-10-05                     SETLOGMASK(3)