HP X.25/9000 Programmer's Guide

Appendix A 125
X.25 Packet Formats
INTERRUPT Packet
When the SIGURG signal handler is called, issue a recv() system call
with the MSG_OOB flag set.
To write this field on an outgoing packet:
Use the send() system call with the MSG_OOB flag set to transmit an
INTERRUPT packet and specify the interrupt user data field.
36960-90061.bk Page 125 Friday, November 10, 2000 3:42 PM