HP UX 11i v2 Networking Software manual Appendix a 149

Sample Programs

Connection Mode

case DL_FDDI:

mac_name = ”FDDI”; break;

default:

printf(”error: unknown MAC type in ppa_info\n”); exit(1);

}

printf(”attaching to %s media on PPA %d\n”, mac_name, ppa);

/*

fill in ATTACH_REQ with the PPA we found, send the ATTACH_REQ, and wait for the OK_ACK

*/

attach_req->dl_primitive = DL_ATTACH_REQ; attach_req->dl_ppa = ppa; put_ctrl(fd, sizeof(dl_attach_req_t), 0); get_msg(fd);

check_ctrl(DL_OK_ACK);

/* return the file descriptor for the stream to the caller */ return(fd);

}

/**************************************************************************

bind to a sap with a specified service mode and max_conind; returns the local DLSAP and its length

**************************************************************************/

void

bind(fd, sap, max_conind, service_mode, dlsap, dlsap_len)

int	fd;	/* file descriptor */
int	sap;	/* 802.2 SAP to bind on */
int	max_conind;	/* max # of connect indications to accept */
int	service_mode;	/* either DL_CODLS or DL_CLDLS */
u_char	*dlsap;	/* return DLSAP */
int	*dlsap_len;	/* return length of dlsap */
{

dl_bind_req_t dl_bind_ack_t u_char

*bind_req = (dl_bind_req_t *)ctrl_area; *bind_ack = (dl_bind_ack_t *)ctrl_area; *dlsap_addr;

/* fill in the BIND_REQ */

bind_req->dl_primitive = DL_BIND_REQ; bind_req->dl_sap = sap; bind_req->dl_max_conind = max_conind; bind_req->dl_service_mode = service_mode;

bind_req->dl_conn_mgmt = 0; /* conn_mgmt is NOT supported */

bind_req->dl_xidtest_flg = 0; /* user will handle TEST & XID pkts */

Appendix A 149