ONC+ Developer's Guide

SAC Messages

The format of messages from the SAC is defined by the structure sacmsg:

struct sacmsg {
 	int sc_size; /* size of optional data portion */
 	char sc_type; /* type of message */

The SAC can send four types of messages to port monitors. The type of message is indicated by setting the sc_type field of the sacmsg structure to one of the following:

A port monitor must respond to every message sent by the SAC.