GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/tcpdump/print-igrp.c Lines: 0 51 0.0 %
Date: 2017-11-13 Branches: 0 32 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: print-igrp.c,v 1.8 2015/11/16 00:16:39 mmcc Exp $	*/
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/*
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 * Copyright (c) 1996, 1997
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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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 * Initial contribution from Francis Dupont (francis.dupont@inria.fr)
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 */
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#include <sys/types.h>			/* concession to AIX */
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#include <sys/socket.h>
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#include <netinet/in.h>
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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 <errno.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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#include "igrp.h"
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#include "extract.h"			/* must come after interface.h */
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static void
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igrp_entry_print(struct igrprte *igr, int is_interior, int is_exterior)
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{
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	u_int delay, bandwidth;
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	u_int metric, mtu;
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	if (is_interior)
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		printf(" *.%d.%d.%d", igr->igr_net[0],
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		    igr->igr_net[1], igr->igr_net[2]);
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	else if (is_exterior)
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		printf(" X%d.%d.%d.0", igr->igr_net[0],
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		    igr->igr_net[1], igr->igr_net[2]);
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	else
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		printf(" %d.%d.%d.0", igr->igr_net[0],
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		    igr->igr_net[1], igr->igr_net[2]);
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	delay = EXTRACT_24BITS(igr->igr_dly);
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	bandwidth = EXTRACT_24BITS(igr->igr_bw);
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	metric = bandwidth + delay;
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	if (metric > 0xffffff)
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		metric = 0xffffff;
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	mtu = EXTRACT_16BITS(igr->igr_mtu);
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	printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
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	    10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
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	    igr->igr_rel, igr->igr_ld, metric,
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	    mtu, igr->igr_hct);
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}
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static struct tok op2str[] = {
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	{ IGRP_UPDATE,		"update" },
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	{ IGRP_REQUEST,		"request" },
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	{ 0,			NULL }
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};
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void
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igrp_print(const u_char *bp, u_int length, const u_char *bp2)
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{
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	struct igrphdr *hdr;
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	struct ip *ip;
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	u_char *cp;
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	u_int nint, nsys, next;
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	hdr = (struct igrphdr *)bp;
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	ip = (struct ip *)bp2;
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	cp = (u_char *)(hdr + 1);
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        (void)printf("%s > %s: igrp: ",
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	    ipaddr_string(&ip->ip_src),
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	    ipaddr_string(&ip->ip_dst));
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	/* Header */
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	TCHECK(*hdr);
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	nint = EXTRACT_16BITS(&hdr->ig_ni);
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	nsys = EXTRACT_16BITS(&hdr->ig_ns);
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	next = EXTRACT_16BITS(&hdr->ig_nx);
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	(void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
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	    tok2str(op2str, "op-#%d", hdr->ig_op),
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	    hdr->ig_v,
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	    hdr->ig_ed,
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	    EXTRACT_16BITS(&hdr->ig_as),
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	    nint,
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	    nsys,
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	    next);
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	length -= sizeof(*hdr);
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	while (length >= IGRP_RTE_SIZE) {
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		if (nint > 0) {
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			TCHECK2(*cp, IGRP_RTE_SIZE);
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			igrp_entry_print((struct igrprte *)cp, 1, 0);
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			--nint;
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		} else if (nsys > 0) {
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			TCHECK2(*cp, IGRP_RTE_SIZE);
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			igrp_entry_print((struct igrprte *)cp, 0, 0);
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			--nsys;
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		} else if (next > 0) {
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			TCHECK2(*cp, IGRP_RTE_SIZE);
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			igrp_entry_print((struct igrprte *)cp, 0, 1);
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			--next;
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		} else {
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			(void)printf("[extra bytes %d]", length);
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			break;
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		}
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		cp += IGRP_RTE_SIZE;
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		length -= IGRP_RTE_SIZE;
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	}
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	if (nint == 0 && nsys == 0 && next == 0)
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		return;
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trunc:
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	fputs("[|igrp]", stdout);
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}