HP X.25/9000 Programmer's Guide

22 Chapter2

X.25 Addressing

Using Wildcard Addressing

* u_char x25_masklen;

* u_char x25_mask[X25_MAX_PIDLEN];

* }

int sd;

struct x25_mask_data mask;

err = ioctl(sd, X25_WR_MASK_DATA, &mask);

sd A socket descriptor for a listen socket.

X25_WR_MASK_

DATA

Indicates the type of ioctl() call. If the

X25_WR_MASK_DATA

value or

x25_mask_len

value is set to

, the ioctl() call returns no error and an

empty mask is used. This has the same effect as if the call were not

made.

mask Indicates the mask to be ANDed with the protocol ID speciﬁed in the

CALL REQUEST packet. The

x25_mask_len

ﬁeld indicates the length of

the mask, and the

x25_mask

ﬁeld indicates the mask to be used.

36960-90061.bk Page 22 Friday, November 10, 2000 3:42 PM