openlog() opens a connection to
the system logger for a program. The string ident is added to each message.
Values for option and facility are given below. The
option argument is used to
indicate what logging options will be used when generating a
log message. The facility
argument is used to specify what type of program is logging
the message. This allows you to specify (in your machine's
syslog configuration) how messages coming from different
facilities will be handled. The use of
openlog() is optional. It will automatically be called by
syslog() if necessary, in which case ident will default to FALSE.
表格 1. openlog()
Options
表格 2. openlog()
Facilities
See also
define_syslog_variables(), syslog()
and
closelog().