Printing, Installing, and Replacing Configuration Scripts

This section describes the form of the SAC and port monitor administrative commands used to install the three types of configuration scripts. Per-system and per-port monitor configuration scripts are administered using the sacadm command. Per-service configuration scripts are administered using the pmadm command.

Per-System Configuration Scripts

Per-system configuration scripts are administered by using the sacadm command.

sacadm -G  [ -z script ]

The -G option is used to print or replace the per-system configuration script. The -G option by itself prints the per-system configuration script. The -G option in combination with a -z option replaces /etc/saf/_sysconfig with the contents of the file script. Other combinations of options with a -G option are invalid.

The _sysconfig file in the following example sets the time zone variable, TZ.

assign TZ=EST5EDT # set TZ
runwait echo SAC is starting > /dev/console

Per-Port Monitor Configuration Scripts

Per-port monitor configuration scripts are administered by using the sacadm command.

sacadm -g -p pmtag [ -z script ]

The -g option is used to print, install, or replace the per-port monitor configuration script. A -g option requires a -p option. The -g option with only a -p option prints the per-port monitor configuration script for port monitor pmtag. The -g option with a -p option and a -z option installs the file script as the per-port monitor configuration script for port monitor pmtag. Or, if /etc/saf/pmtag/_config exists, these options replace _config with the contents of script. Other combinations of options with -g are invalid.

In the _config file, the command /usr/bin/daemon is assumed to start a daemon process that builds and holds together a STREAMS multiplexor. By installing this configuration script, the command can be executed just before starting the port monitor that requires it.

# build a STREAMS multiplexor
run /usr/bin/daemon
runwait echo $PMTAG is starting > /dev/console

Per-Service Configuration Scripts

Per-service configuration scripts are interpreted by the port monitor before the service is invoked.

pmadm -g -p pmtag -s svctag [ -z script ]
 pmadm -g -s svctag -t type -z script

The SAC interprets both its own configuration file, _sysconfig, and the port monitor configuration files. Only the per-service configuration files are interpreted by the port monitors.

The -g option is used to print, install, or replace a per-service configuration script. The -g option with a -p option and a -s option prints the per-service configuration script for service svctag available through port monitor pmtag. The -g option with a -p option, a -s option, and a -z option installs the per-service configuration script contained in the file script as the per-service configuration script for service svctag available through port monitor pmtag. The -g option with a -s option, a -t option, and a -z option installs the file script as the per-service configuration script for service svctag available through any port monitor of type type. Other combinations of options with -g are invalid.

The following per-service configuration script controls two settings: It specifies the maximum file size for files created by a process by setting the process's ulimit to 4096. It also specifies the protection mask to be applied to files created by the process by setting umask to 077.

runwait ulimit 4096
runwait umask 077