void
igrp_print(netdissect_options *ndo, register const u_char *bp, u_int length)
{
register struct igrphdr *hdr;
register u_char *cp;
u_int nint, nsys, next;
hdr = (struct igrphdr *)bp;
cp = (u_char *)(hdr + 1);
ND_PRINT((ndo, "igrp:"));
/* Header */
ND_TCHECK(*hdr);
nint = EXTRACT_16BITS(&hdr->ig_ni);
nsys = EXTRACT_16BITS(&hdr->ig_ns);
next = EXTRACT_16BITS(&hdr->ig_nx);
ND_PRINT((ndo, " %s V%d edit=%d AS=%d (%d/%d/%d)",
tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
IGRP_V(hdr->ig_vop),
hdr->ig_ed,
EXTRACT_16BITS(&hdr->ig_as),
nint,
nsys,
next));
length -= sizeof(*hdr);
while (length >= IGRP_RTE_SIZE) {
if (nint > 0) {
ND_TCHECK2(*cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (struct igrprte *)cp, 1, 0);
--nint;
} else if (nsys > 0) {
ND_TCHECK2(*cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (struct igrprte *)cp, 0, 0);
--nsys;
} else if (next > 0) {
ND_TCHECK2(*cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (struct igrprte *)cp, 0, 1);
--next;
} else {
ND_PRINT((ndo, " [extra bytes %d]", length));
break;
}
cp += IGRP_RTE_SIZE;
length -= IGRP_RTE_SIZE;
}
if (nint == 0 && nsys == 0 && next == 0)
return;
trunc:
ND_PRINT((ndo, " [|igrp]"));
}
void
igrp_print(netdissect_options *ndo, const u_char *bp, u_int length)
{
const struct igrphdr *hdr;
const u_char *cp;
u_int nint, nsys, next;
hdr = (const struct igrphdr *)bp;
cp = (const u_char *)(hdr + 1);
ND_PRINT("igrp:");
/* Header */
ND_TCHECK_SIZE(hdr);
nint = EXTRACT_BE_U_2(hdr->ig_ni);
nsys = EXTRACT_BE_U_2(hdr->ig_ns);
next = EXTRACT_BE_U_2(hdr->ig_nx);
ND_PRINT(" %s V%u edit=%u AS=%u (%u/%u/%u)",
tok2str(op2str, "op-#%u", IGRP_OP(EXTRACT_U_1(hdr->ig_vop))),
IGRP_V(EXTRACT_U_1(hdr->ig_vop)),
EXTRACT_U_1(hdr->ig_ed),
EXTRACT_BE_U_2(hdr->ig_as),
nint,
nsys,
next);
length -= sizeof(*hdr);
while (length >= IGRP_RTE_SIZE) {
if (nint > 0) {
ND_TCHECK_LEN(cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (const struct igrprte *)cp, 1, 0);
--nint;
} else if (nsys > 0) {
ND_TCHECK_LEN(cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (const struct igrprte *)cp, 0, 0);
--nsys;
} else if (next > 0) {
ND_TCHECK_LEN(cp, IGRP_RTE_SIZE);
igrp_entry_print(ndo, (const struct igrprte *)cp, 0, 1);
--next;
} else {
ND_PRINT(" [extra bytes %u]", length);
break;
}
cp += IGRP_RTE_SIZE;
length -= IGRP_RTE_SIZE;
}
if (nint == 0 && nsys == 0 && next == 0)
return;
trunc:
ND_PRINT(" [|igrp]");
}