00cef679df
Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will only support Ethernet. Tcpdump itself should be ok, but libpcap needs lot of work. For the detailed change history, look at the commit log entries for the is-newarp branch.
281 lines
6.1 KiB
C
281 lines
6.1 KiB
C
/*
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* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static char rcsid[] =
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"@(#) Header: print-domain.c,v 1.23 94/06/14 20:17:38 leres Exp (LBL)";
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#ifdef __NetBSD__
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#include <net/if_ether.h>
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#else
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#include <netinet/if_ether.h>
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#endif
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#include <netinet/tcp.h>
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#include <netinet/tcpip.h>
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#undef NOERROR /* Solaris sucks */
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#include <arpa/nameser.h>
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#include <stdio.h>
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#include "interface.h"
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#include "addrtoname.h"
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static char *ns_ops[] = {
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"", " inv_q", " stat", " op3", " op4", " op5", " op6", " op7",
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" op8", " updataA", " updateD", " updateDA",
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" updateM", " updateMA", " zoneInit", " zoneRef",
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};
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static char *ns_resp[] = {
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"", " FormErr", " ServFail", " NXDomain",
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" NotImp", " Refused", " Resp6", " Resp7",
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" Resp8", " Resp9", " Resp10", " Resp11",
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" Resp12", " Resp13", " Resp14", " NoChange",
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};
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/* skip over a domain name */
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static const u_char *
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ns_nskip(register const u_char *cp)
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{
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register u_char i;
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if (((i = *cp++) & 0xc0) == 0xc0)
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return (cp + 1);
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while (i) {
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cp += i;
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i = *cp++;
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}
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return (cp);
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}
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/* print a domain name */
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static void
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ns_nprint(register const u_char *cp, register const u_char *bp,
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register const u_char *ep)
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{
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register u_int i;
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putchar(' ');
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if ((i = *cp++) != 0)
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while (i && cp < ep) {
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if ((i & 0xc0) == 0xc0) {
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cp = bp + (((i << 8) | *cp) & 0x3fff);
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i = *cp++;
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continue;
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}
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do {
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putchar(*cp++);
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} while (--i);
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putchar('.');
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i = *cp++;
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}
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else
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putchar('.');
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}
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static struct token type2str[] = {
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{ T_A, "A" },
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{ T_NS, "NS" },
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{ T_MD, "MD" },
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{ T_MF, "MF" },
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{ T_CNAME, "CNAME" },
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{ T_SOA, "SOA" },
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{ T_MB, "MB" },
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{ T_MG, "MG" },
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{ T_MR, "MR" },
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{ T_NULL, "NULL" },
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{ T_WKS, "WKS" },
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{ T_PTR, "PTR" },
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{ T_HINFO, "HINFO" },
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{ T_MINFO, "MINFO" },
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{ T_MX, "MX" },
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{ T_UINFO, "UINFO" },
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{ T_UID, "UID" },
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{ T_GID, "GID" },
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#ifdef T_UNSPEC
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{ T_UNSPEC, "UNSPEC" },
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#endif
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{ T_AXFR, "AXFR" },
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{ T_MAILB, "MAILB" },
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{ T_MAILA, "MAILA" },
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{ T_ANY, "ANY" },
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{ 0, NULL }
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};
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/* print a query */
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static void
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ns_qprint(register const u_char *cp, register const u_char *bp,
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register const u_char *ep)
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{
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const u_char *np = cp;
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register u_int i;
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cp = ns_nskip(cp);
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if (cp + 4 > ep)
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return;
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/* print the qtype and qclass (if it's not IN) */
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i = *cp++ << 8;
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i |= *cp++;
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printf(" %s", tok2str(type2str, "Type%d", i));
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i = *cp++ << 8;
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if ((i |= *cp++) != C_IN)
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if (i == C_ANY)
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printf("(c_any)");
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else
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printf("(Class %d)", i);
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putchar('?');
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ns_nprint(np, bp, ep);
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}
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/* print a reply */
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static void
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ns_rprint(register const u_char *cp, register const u_char *bp,
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register const u_char *ep)
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{
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register u_int i;
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u_short typ;
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cp = ns_nskip(cp);
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if (cp + 10 > ep)
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return;
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/* print the type/qtype and class (if it's not IN) */
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typ = *cp++ << 8;
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typ |= *cp++;
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i = *cp++ << 8;
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if ((i |= *cp++) != C_IN)
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if (i == C_ANY)
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printf("(c_any)");
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else
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printf("(Class %d)", i);
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/* ignore ttl & len */
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cp += 6;
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printf(" %s", tok2str(type2str, "Type%d", typ));
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switch (typ) {
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case T_A:
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printf(" %s", ipaddr_string(cp));
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break;
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case T_NS:
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case T_CNAME:
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case T_PTR:
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ns_nprint(cp, bp, ep);
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break;
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case T_MX:
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ns_nprint(cp+2, bp, ep);
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#ifndef TCPDUMP_ALIGN
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printf(" %d", *(short *)cp);
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#else
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{
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u_short x = *cp | cp[1] << 8;
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printf(" %d", ntohs(x));
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}
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#endif
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break;
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}
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}
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void
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ns_print(register const u_char *bp, int length)
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{
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register const HEADER *np;
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int qdcount, ancount, nscount, arcount;
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const u_char *ep = snapend;
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np = (const HEADER *)bp;
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/* get the byte-order right */
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qdcount = ntohs(np->qdcount);
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ancount = ntohs(np->ancount);
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nscount = ntohs(np->nscount);
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arcount = ntohs(np->arcount);
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if (np->qr) {
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/* this is a response */
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printf(" %d%s%s%s%s%s",
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ntohs(np->id),
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ns_ops[np->opcode],
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ns_resp[np->rcode],
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np->aa? "*" : "",
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np->ra? "" : "-",
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np->tc? "|" : "");
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if (qdcount != 1)
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printf(" [%dq]", qdcount);
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printf(" %d/%d/%d", ancount, nscount, arcount);
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if (ancount)
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ns_rprint(ns_nskip((const u_char *)(np + 1)) + 4,
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(const u_char *)np, ep);
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}
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else {
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/* this is a request */
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printf(" %d%s%s",
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ntohs(np->id),
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ns_ops[np->opcode],
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np->rd? "+" : "");
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/* any weirdness? */
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if (*(((u_short *)np)+1) & htons(0x6ff))
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printf(" [b2&3=0x%x]", ntohs(*(((u_short *)np)+1)));
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if (np->opcode == IQUERY) {
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if (qdcount)
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printf(" [%dq]", qdcount);
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if (ancount != 1)
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printf(" [%da]", ancount);
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}
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else {
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if (ancount)
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printf(" [%da]", ancount);
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if (qdcount != 1)
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printf(" [%dq]", qdcount);
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}
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if (nscount)
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printf(" [%dn]", nscount);
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if (arcount)
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printf(" [%dau]", arcount);
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ns_qprint((const u_char *)(np + 1), (const u_char *)np, ep);
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}
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printf(" (%d)", length);
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}
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