static void ipnet_print(struct netdissect_options *ndo, const u_char *p, u_int length, u_int caplen) { ipnet_hdr_t *hdr; if (caplen < sizeof(ipnet_hdr_t)) { ND_PRINT((ndo, "[|ipnet]")); return; } if (ndo->ndo_eflag) ipnet_hdr_print(ndo, p, length); length -= sizeof(ipnet_hdr_t); caplen -= sizeof(ipnet_hdr_t); hdr = (ipnet_hdr_t *)p; p += sizeof(ipnet_hdr_t); switch (hdr->iph_family) { case IPH_AF_INET: ip_print(ndo, p, length); break; #ifdef INET6 case IPH_AF_INET6: ip6_print(ndo, p, length); break; #endif /*INET6*/ default: if (!ndo->ndo_eflag) ipnet_hdr_print(ndo, (u_char *)hdr, length + sizeof(ipnet_hdr_t)); if (!ndo->ndo_suppress_default_print) ndo->ndo_default_print(ndo, p, caplen); break; } }
static void ipnet_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen) { const ipnet_hdr_t *hdr; if (caplen < sizeof(ipnet_hdr_t)) goto trunc; if (ndo->ndo_eflag) ipnet_hdr_print(ndo, p, length); length -= sizeof(ipnet_hdr_t); caplen -= sizeof(ipnet_hdr_t); hdr = (const ipnet_hdr_t *)p; p += sizeof(ipnet_hdr_t); ND_TCHECK_1(hdr->iph_family); switch (EXTRACT_U_1(hdr->iph_family)) { case IPH_AF_INET: ip_print(ndo, p, length); break; case IPH_AF_INET6: ip6_print(ndo, p, length); break; default: if (!ndo->ndo_eflag) ipnet_hdr_print(ndo, (const u_char *)hdr, length + sizeof(ipnet_hdr_t)); if (!ndo->ndo_suppress_default_print) ND_DEFAULTPRINT(p, caplen); break; } return; trunc: ND_PRINT(" %s", tstr); }