auto import from //depot/cupcake/@135843
diff --git a/print-arcnet.c b/print-arcnet.c
new file mode 100644
index 0000000..63f9c21
--- /dev/null
+++ b/print-arcnet.c
@@ -0,0 +1,297 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * From: NetBSD: print-arcnet.c,v 1.2 2000/04/24 13:02:28 itojun Exp
+ */
+#ifndef lint
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-arcnet.c,v 1.20 2005/04/06 21:32:38 mcr Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <pcap.h>
+
+#include "interface.h"
+#include "arcnet.h"
+
+static int arcnet_encap_print(u_char arctype, const u_char *p,
+ u_int length, u_int caplen);
+
+struct tok arctypemap[] = {
+ { ARCTYPE_IP_OLD, "oldip" },
+ { ARCTYPE_ARP_OLD, "oldarp" },
+ { ARCTYPE_IP, "ip" },
+ { ARCTYPE_ARP, "arp" },
+ { ARCTYPE_REVARP, "rarp" },
+ { ARCTYPE_ATALK, "atalk" },
+ { ARCTYPE_BANIAN, "banyan" },
+ { ARCTYPE_IPX, "ipx" },
+ { ARCTYPE_INET6, "ipv6" },
+ { ARCTYPE_DIAGNOSE, "diag" },
+ { 0, 0 }
+};
+
+static inline void
+arcnet_print(const u_char *bp, u_int length, int phds, int flag, u_int seqid)
+{
+ const struct arc_header *ap;
+ const char *arctypename;
+
+
+ ap = (const struct arc_header *)bp;
+
+
+ if (qflag) {
+ (void)printf("%02x %02x %d: ",
+ ap->arc_shost,
+ ap->arc_dhost,
+ length);
+ return;
+ }
+
+ arctypename = tok2str(arctypemap, "%02x", ap->arc_type);
+
+ if (!phds) {
+ (void)printf("%02x %02x %s %d: ",
+ ap->arc_shost, ap->arc_dhost, arctypename,
+ length);
+ return;
+ }
+
+ if (flag == 0) {
+ (void)printf("%02x %02x %s seqid %04x %d: ",
+ ap->arc_shost, ap->arc_dhost, arctypename, seqid,
+ length);
+ return;
+ }
+
+ if (flag & 1)
+ (void)printf("%02x %02x %s seqid %04x "
+ "(first of %d fragments) %d: ",
+ ap->arc_shost, ap->arc_dhost, arctypename, seqid,
+ (flag + 3) / 2, length);
+ else
+ (void)printf("%02x %02x %s seqid %04x "
+ "(fragment %d) %d: ",
+ ap->arc_shost, ap->arc_dhost, arctypename, seqid,
+ flag/2 + 1, length);
+}
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the ARCNET header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ */
+u_int
+arcnet_if_print(const struct pcap_pkthdr *h, const u_char *p)
+{
+ u_int caplen = h->caplen;
+ u_int length = h->len;
+ const struct arc_header *ap;
+
+ int phds, flag = 0, archdrlen = 0;
+ u_int seqid = 0;
+ u_char arc_type;
+
+ if (caplen < ARC_HDRLEN) {
+ printf("[|arcnet]");
+ return (caplen);
+ }
+
+ ap = (const struct arc_header *)p;
+ arc_type = ap->arc_type;
+
+ switch (arc_type) {
+ default:
+ phds = 1;
+ break;
+ case ARCTYPE_IP_OLD:
+ case ARCTYPE_ARP_OLD:
+ case ARCTYPE_DIAGNOSE:
+ phds = 0;
+ archdrlen = ARC_HDRLEN;
+ break;
+ }
+
+ if (phds) {
+ if (caplen < ARC_HDRNEWLEN) {
+ arcnet_print(p, length, 0, 0, 0);
+ printf("[|phds]");
+ return (caplen);
+ }
+
+ if (ap->arc_flag == 0xff) {
+ if (caplen < ARC_HDRNEWLEN_EXC) {
+ arcnet_print(p, length, 0, 0, 0);
+ printf("[|phds extended]");
+ return (caplen);
+ }
+ flag = ap->arc_flag2;
+ seqid = ntohs(ap->arc_seqid2);
+ archdrlen = ARC_HDRNEWLEN_EXC;
+ } else {
+ flag = ap->arc_flag;
+ seqid = ntohs(ap->arc_seqid);
+ archdrlen = ARC_HDRNEWLEN;
+ }
+ }
+
+
+ if (eflag)
+ arcnet_print(p, length, phds, flag, seqid);
+
+ /*
+ * Go past the ARCNET header.
+ */
+ length -= archdrlen;
+ caplen -= archdrlen;
+ p += archdrlen;
+
+ if (phds && flag && (flag & 1) == 0) {
+ /*
+ * This is a middle fragment.
+ */
+ return (archdrlen);
+ }
+
+ if (!arcnet_encap_print(arc_type, p, length, caplen))
+ default_print(p, caplen);
+
+ return (archdrlen);
+}
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the ARCNET header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured. It is quite similar
+ * to the non-Linux style printer except that Linux doesn't ever
+ * supply packets that look like exception frames, it always supplies
+ * reassembled packets rather than raw frames, and headers have an
+ * extra "offset" field between the src/dest and packet type.
+ */
+u_int
+arcnet_linux_if_print(const struct pcap_pkthdr *h, const u_char *p)
+{
+ u_int caplen = h->caplen;
+ u_int length = h->len;
+ const struct arc_linux_header *ap;
+
+ int archdrlen = 0;
+ u_char arc_type;
+
+ if (caplen < ARC_LINUX_HDRLEN) {
+ printf("[|arcnet]");
+ return (caplen);
+ }
+
+ ap = (const struct arc_linux_header *)p;
+ arc_type = ap->arc_type;
+
+ switch (arc_type) {
+ default:
+ archdrlen = ARC_LINUX_HDRNEWLEN;
+ if (caplen < ARC_LINUX_HDRNEWLEN) {
+ printf("[|arcnet]");
+ return (caplen);
+ }
+ break;
+ case ARCTYPE_IP_OLD:
+ case ARCTYPE_ARP_OLD:
+ case ARCTYPE_DIAGNOSE:
+ archdrlen = ARC_LINUX_HDRLEN;
+ break;
+ }
+
+ if (eflag)
+ arcnet_print(p, length, 0, 0, 0);
+
+ /*
+ * Go past the ARCNET header.
+ */
+ length -= archdrlen;
+ caplen -= archdrlen;
+ p += archdrlen;
+
+ if (!arcnet_encap_print(arc_type, p, length, caplen))
+ default_print(p, caplen);
+
+ return (archdrlen);
+}
+
+/*
+ * Prints the packet encapsulated in an ARCnet data field,
+ * given the ARCnet system code.
+ *
+ * Returns non-zero if it can do so, zero if the system code is unknown.
+ */
+
+
+static int
+arcnet_encap_print(u_char arctype, const u_char *p,
+ u_int length, u_int caplen)
+{
+ switch (arctype) {
+
+ case ARCTYPE_IP_OLD:
+ case ARCTYPE_IP:
+ ip_print(gndo, p, length);
+ return (1);
+
+#ifdef INET6
+ case ARCTYPE_INET6:
+ ip6_print(p, length);
+ return (1);
+#endif /*INET6*/
+
+ case ARCTYPE_ARP_OLD:
+ case ARCTYPE_ARP:
+ case ARCTYPE_REVARP:
+ arp_print(gndo, p, length, caplen);
+ return (1);
+
+ case ARCTYPE_ATALK: /* XXX was this ever used? */
+ if (vflag)
+ fputs("et1 ", stdout);
+ atalk_print(p, length);
+ return (1);
+
+ case ARCTYPE_IPX:
+ ipx_print(p, length);
+ return (1);
+
+ default:
+ return (0);
+ }
+}
+
+/*
+ * Local Variables:
+ * c-style: bsd
+ * End:
+ */
+
