/*
* FUNCTION: iso_netof
*
* PURPOSE: Extract the network portion of the iso address.
* The network portion of the iso address varies depending
* on the type of address. The network portion of the
* address will include the IDP. The network portion is:
*
* TYPE DESC
* t37 The AFI and x.121 (IDI)
* osinet The AFI, orgid, snetid
* rfc986 The AFI, vers and network part
* of internet address.
*
* RETURNS: number of bytes placed into buf.
*
* SIDE EFFECTS:
*
* NOTES: Buf is assumed to be big enough
*/
u_int
iso_netof(
struct iso_addr *isoa, /* address */
void * buf) /* RESULT: network portion of address here */
{
u_int len = 1;/* length of afi */
switch (isoa->isoa_afi) {
case AFI_37:
/*
* Due to classic x.25 tunnel vision, there is no
* net portion of an x.121 address. For our purposes
* the AFI will do, so that all x.25 -type addresses
* map to the single x.25 SNPA. (Cannot have more than
* one, obviously).
*/
break;
/* case AFI_OSINET: */
case AFI_RFC986:{
u_short idi; /* value of idi */
/* osinet and rfc986 have idi in the same place */
CTOH(isoa->rfc986_idi[0], isoa->rfc986_idi[1], idi);
if (idi == IDI_OSINET)
/*
* Network portion of OSINET address can only
* be the IDI. Clearly, with one x25 interface,
* one could get to several orgids, and
* several snetids.
*/
#if 0
len += (ADDROSINET_IDI_LEN +
OVLOSINET_ORGID_LEN +
OVLOSINET_SNETID_LEN);
#endif
len += ADDROSINET_IDI_LEN;
else if (idi == IDI_RFC986) {
struct ovl_rfc986 *o986 =
(struct ovl_rfc986 *) isoa;
/*
* bump len to include idi and version (1
* byte)
*/
len += ADDRRFC986_IDI_LEN + 1;
#ifdef ARGO_DEBUG
if (argo_debug[D_ROUTE]) {
printf("iso_netof: isoa ");
dump_buf(isoa, sizeof(*isoa));
printf("iso_netof: inetaddr 0x%x ",
inetaddr);
}
#endif
/*
* bump len by size of network portion of
* inet address
*/
if (IN_CLASSA(o986->o986_inetaddr)) {
len += 4 - IN_CLASSA_NSHIFT / 8;
#ifdef ARGO_DEBUG
if (argo_debug[D_ROUTE]) {
printf("iso_netof: class A net len is now %d\n", len);
}
#endif
} else if (IN_CLASSB(o986->o986_inetaddr)) {
len += 4 - IN_CLASSB_NSHIFT / 8;
#ifdef ARGO_DEBUG
if (argo_debug[D_ROUTE]) {
printf("iso_netof: class B net len is now %d\n", len);
}
#endif
} else {
len += 4 - IN_CLASSC_NSHIFT / 8;
#ifdef ARGO_DEBUG
if (argo_debug[D_ROUTE]) {
printf("iso_netof: class C net len is now %d\n", len);
}
#endif
}
} else
len = 0;
} break;
default:
len = 0;
}
char *
clnp_iso_addrp(const struct iso_addr *isoa)
{
char *cp;
#ifdef notdef
u_short idi;
#endif
/* print length */
snprintf(iso_addr_b, sizeof(iso_addr_b), "[%d] ", isoa->isoa_len);
/* set cp to end of what we have */
cp = iso_addr_b;
while (*cp)
cp++;
/* print afi */
cp = clnp_hexp(isoa->isoa_genaddr, (int) isoa->isoa_len, cp);
#ifdef notdef
*cp++ = DELIM;
/* print type specific part */
switch (isoa->isoa_afi) {
case AFI_37:
cp = clnp_hexp(isoa->t37_idi, ADDR37_IDI_LEN, cp);
*cp++ = DELIM;
cp = clnp_hexp(isoa->t37_dsp, ADDR37_DSP_LEN, cp);
break;
/* case AFI_OSINET: */
case AFI_RFC986:
/* osinet and rfc986 have idi in the same place */
/* print idi */
cp = clnp_hexp(isoa->rfc986_idi,
ADDROSINET_IDI_LEN, cp);
*cp++ = DELIM;
CTOH(isoa->rfc986_idi[0], isoa->rfc986_idi[1], idi);
if (idi == IDI_OSINET) {
struct ovl_osinet *oosi = (struct ovl_osinet *) isoa;
cp = clnp_hexp(oosi->oosi_orgid,
OVLOSINET_ORGID_LEN, cp);
*cp++ = DELIM;
cp = clnp_hexp(oosi->oosi_snetid,
OVLOSINET_SNETID_LEN, cp);
*cp++ = DELIM;
cp = clnp_hexp(oosi->oosi_snpa, OVLOSINET_SNPA_LEN, cp);
*cp++ = DELIM;
cp = clnp_hexp(oosi->oosi_nsap, OVLOSINET_NSAP_LEN, cp);
} else if (idi == IDI_RFC986) {
struct ovl_rfc986 *o986 = (struct ovl_rfc986 *) isoa;
cp = clnp_hexp(&o986->o986_vers, 1, cp);
*cp++ = DELIM;
#ifdef __vax__
sprintf(cp, "%d.%d.%d.%d.%d",
o986->o986_inetaddr[0] & 0xff,
o986->o986_inetaddr[1] & 0xff,
o986->o986_inetaddr[2] & 0xff,
o986->o986_inetaddr[3] & 0xff,
o986->o986_upid & 0xff);
return (iso_addr_b);
#else
cp = clnp_hexp(&o986->o986_inetaddr[0], 1, cp);
*cp++ = DELIM;
cp = clnp_hexp(&o986->o986_inetaddr[1], 1, cp);
*cp++ = DELIM;
cp = clnp_hexp(&o986->o986_inetaddr[2], 1, cp);
*cp++ = DELIM;
cp = clnp_hexp(&o986->o986_inetaddr[3], 1, cp);
*cp++ = DELIM;
cp = clnp_hexp(&o986->o986_upid, 1, cp);
#endif /* vax */
}
break;
default:
*cp++ = '?';
break;
}
#endif /* notdef */
*cp = (char) 0;
return (iso_addr_b);
}