Initial revision
diff --git a/print-rip.c b/print-rip.c
new file mode 100644
index 0000000..9ad32ce
--- /dev/null
+++ b/print-rip.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 1989, 1990, 1991, 1993, 1994, 1996
+ * 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-rip.c,v 1.36 1999-10-07 23:47:12 mcr Exp $ (LBL)";
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+
+#include <stdio.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h" /* must come after interface.h */
+
+struct rip {
+ u_char rip_cmd; /* request/response */
+ u_char rip_vers; /* protocol version # */
+ u_short rip_zero2; /* unused */
+};
+#define RIPCMD_REQUEST 1 /* want info */
+#define RIPCMD_RESPONSE 2 /* responding to request */
+#define RIPCMD_TRACEON 3 /* turn tracing on */
+#define RIPCMD_TRACEOFF 4 /* turn it off */
+#define RIPCMD_POLL 5 /* want info from everybody */
+#define RIPCMD_POLLENTRY 6 /* poll for entry */
+
+struct rip_netinfo {
+ u_short rip_family;
+ u_short rip_tag;
+ u_int32_t rip_dest;
+ u_int32_t rip_dest_mask;
+ u_int32_t rip_router;
+ u_int32_t rip_metric; /* cost of route */
+};
+
+static void
+rip_entry_print(register int vers, register const struct rip_netinfo *ni)
+{
+ register u_char *cp, *ep;
+
+ if (EXTRACT_16BITS(&ni->rip_family) != AF_INET) {
+
+ printf(" [family %d:", EXTRACT_16BITS(&ni->rip_family));
+ cp = (u_char *)&ni->rip_tag;
+ ep = (u_char *)&ni->rip_metric + sizeof(ni->rip_metric);
+ for (; cp < ep; cp += 2)
+ printf(" %04x", EXTRACT_16BITS(cp));
+ printf("]");
+ } else if (vers < 2) {
+ /* RFC 1058 */
+ printf(" %s", ipaddr_string(&ni->rip_dest));
+ } else {
+ /* RFC 1723 */
+ printf(" {%s", ipaddr_string(&ni->rip_dest));
+ if (ni->rip_dest_mask)
+ printf("/%s", ipaddr_string(&ni->rip_dest_mask));
+ if (ni->rip_router)
+ printf("->%s", ipaddr_string(&ni->rip_router));
+ if (ni->rip_tag)
+ printf(" tag %04x", EXTRACT_16BITS(&ni->rip_tag));
+ printf("}");
+ }
+ printf("(%d)", EXTRACT_32BITS(&ni->rip_metric));
+}
+
+void
+rip_print(const u_char *dat, u_int length)
+{
+ register const struct rip *rp;
+ register const struct rip_netinfo *ni;
+ register int i, j, trunc;
+
+ i = min(length, snapend - dat) - sizeof(*rp);
+ if (i < 0)
+ return;
+
+ rp = (struct rip *)dat;
+ switch (rp->rip_cmd) {
+
+ case RIPCMD_REQUEST:
+ printf(" rip-req %d", length);
+ break;
+
+ case RIPCMD_RESPONSE:
+ j = length / sizeof(*ni);
+ if (j * sizeof(*ni) != length - 4)
+ printf(" rip-resp %d[%d]:", j, length);
+ else
+ printf(" rip-resp %d:", j);
+ trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
+ ni = (struct rip_netinfo *)(rp + 1);
+ for (; (i -= sizeof(*ni)) >= 0; ++ni)
+ rip_entry_print(rp->rip_vers, ni);
+ if (trunc)
+ printf("[|rip]");
+ break;
+
+ case RIPCMD_TRACEON:
+ printf(" rip-traceon %d: \"", length);
+ (void)fn_print((const u_char *)(rp + 1), snapend);
+ fputs("\"\n", stdout);
+ break;
+
+ case RIPCMD_TRACEOFF:
+ printf(" rip-traceoff %d", length);
+ break;
+
+ case RIPCMD_POLL:
+ printf(" rip-poll %d", length);
+ break;
+
+ case RIPCMD_POLLENTRY:
+ printf(" rip-pollentry %d", length);
+ break;
+
+ default:
+ printf(" rip-#%d %d", rp->rip_cmd, length);
+ break;
+ }
+ switch (rp->rip_vers) {
+
+ case 1:
+ case 2:
+ break;
+
+ default:
+ printf(" [vers %d]", rp->rip_vers);
+ break;
+ }
+}