NetBSD/usr.sbin/tcpdump/print-rip.c

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/*
* Copyright (c) 1988-1990 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.
*
* $Id: print-rip.c,v 1.1 1993/11/14 21:20:51 deraadt Exp $
*/
#ifndef lint
static char rcsid[] =
"@(#) Header: print-rip.c,v 1.12 91/04/19 10:46:46 mccanne Exp (LBL)";
#endif
#include <sys/param.h>
#include <sys/types.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 <protocols/routed.h>
#include <errno.h>
#include "interface.h"
#include "addrtoname.h"
static void
rip_entry_print(ni)
register struct netinfo *ni;
{
if (ntohs(ni->rip_dst.sa_family) != AF_INET) {
register int i;
printf(" [family %d:", ntohs(ni->rip_dst.sa_family));
for (i = 0; i < 14; i += 2)
printf(" %02x%02x", ni->rip_dst.sa_data[i],
ni->rip_dst.sa_data[i+1]);
printf("]");
} else {
register struct sockaddr_in *sin =
(struct sockaddr_in *)&ni->rip_dst;
printf(" %s", ipaddr_string(&sin->sin_addr));
if (sin->sin_port)
printf(" [port %d]", sin->sin_port);
}
printf("(%d)", ntohl(ni->rip_metric));
}
void
rip_print(dat, length)
u_char *dat;
int length;
{
register struct rip *rp = (struct rip *)dat;
register struct netinfo *ni;
register int amt = (u_char *)snapend - dat;
register int i = min(length, amt) -
(sizeof(struct rip) - sizeof(struct netinfo));
int j;
int trunc;
if (i < 0)
return;
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);
for (ni = rp->rip_nets; (i -= sizeof(*ni)) >= 0; ++ni)
rip_entry_print(ni);
if (trunc)
printf("[|rip]");
break;
case RIPCMD_TRACEON:
printf(" rip-traceon %d: \"%s\"", length, rp->rip_tracefile);
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;
}
if (rp->rip_vers != RIPVERSION)
printf(" [vers %d]", rp->rip_vers);
}