Sys::Syslog

Interfaces to Unix syslog(3) program. Requires the file syslog.ph, which must be created with h2ph by your system administrator. Provides the following four functions.

closelog 

Closes the log file.

openlog ident, logopt, facility 

Opens the log file. Takes the following arguments:

• ident
• Prepended to every message
• logopt
• Logging options, containing one or more of:
  • cons
  • Writes messages to system console if they can't be sent to syslogd
  • ndelay
  • Opens the connection immediately
  • nowait
  • Doesn't wait for child processes before logging messages to the console
  • pid
  • Logs process ID
• facility
• Specifies the part of the system making the log entry

setlogmask mask_priority 

Sets log mask to mask_priority and returns the old mask.

syslog priority, mask, format, args 

If priority and mask permit, logs message formed as if by sprintf(format, args), with the addition that %m is replaced with the current error message from $!.