MFV r276761: tcpdump 4.6.2.

MFC after:	1 month

1 files changed, 58 insertions, 34 deletions

diff --git a/contrib/tcpdump/print-igrp.c b/contrib/tcpdump/print-igrp.c
index 3cede7e..fbb3134 100644
--- a/contrib/tcpdump/print-igrp.c
+++ b/contrib/tcpdump/print-igrp.c
@@ -21,41 +21,65 @@
  * Initial contribution from Francis Dupont (francis.dupont@inria.fr)
  */
 
-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-igrp.c,v 1.21 2005-04-20 21:01:56 guy Exp $ (LBL)";
-#endif
-
+#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <tcpdump-stdinc.h>
 
-#include <stdio.h>
-
 #include "interface.h"
-#include "addrtoname.h"
-#include "igrp.h"
-#include "ip.h"
 #include "extract.h"			/* must come after interface.h */
 
+/* Cisco IGRP definitions */
+
+/* IGRP Header */
+
+struct igrphdr {
+	uint8_t ig_vop;	/* protocol version number / opcode */
+#define IGRP_V(x)	(((x) & 0xf0) >> 4)
+#define IGRP_OP(x)	((x) & 0x0f)
+	uint8_t ig_ed;		/* edition number */
+	uint16_t ig_as;	/* autonomous system number */
+	uint16_t ig_ni;	/* number of subnet in local net */
+	uint16_t ig_ns;	/* number of networks in AS */
+	uint16_t ig_nx;	/* number of networks ouside AS */
+	uint16_t ig_sum;	/* checksum of IGRP header & data */
+};
+
+#define IGRP_UPDATE	1
+#define IGRP_REQUEST	2
+
+/* IGRP routing entry */
+
+struct igrprte {
+	uint8_t igr_net[3];	/* 3 significant octets of IP address */
+	uint8_t igr_dly[3];	/* delay in tens of microseconds */
+	uint8_t igr_bw[3];	/* bandwidth in units of 1 kb/s */
+	uint8_t igr_mtu[2];	/* MTU in octets */
+	uint8_t igr_rel;	/* percent packets successfully tx/rx */
+	uint8_t igr_ld;	/* percent of channel occupied */
+	uint8_t igr_hct;	/* hop count */
+};
+
+#define IGRP_RTE_SIZE	14	/* don't believe sizeof ! */
+
 static void
-igrp_entry_print(register struct igrprte *igr, register int is_interior,
-    register int is_exterior)
+igrp_entry_print(netdissect_options *ndo, register struct igrprte *igr,
+    register int is_interior, register int is_exterior)
 {
 	register u_int delay, bandwidth;
 	u_int metric, mtu;
 
 	if (is_interior)
-		printf(" *.%d.%d.%d", igr->igr_net[0],
-		    igr->igr_net[1], igr->igr_net[2]);
+		ND_PRINT((ndo, " *.%d.%d.%d", igr->igr_net[0],
+		    igr->igr_net[1], igr->igr_net[2]));
 	else if (is_exterior)
-		printf(" X%d.%d.%d.0", igr->igr_net[0],
-		    igr->igr_net[1], igr->igr_net[2]);
+		ND_PRINT((ndo, " X%d.%d.%d.0", igr->igr_net[0],
+		    igr->igr_net[1], igr->igr_net[2]));
 	else
-		printf(" %d.%d.%d.0", igr->igr_net[0],
-		    igr->igr_net[1], igr->igr_net[2]);
+		ND_PRINT((ndo, " %d.%d.%d.0", igr->igr_net[0],
+		    igr->igr_net[1], igr->igr_net[2]));
 
 	delay = EXTRACT_24BITS(igr->igr_dly);
 	bandwidth = EXTRACT_24BITS(igr->igr_bw);
@@ -64,20 +88,20 @@ igrp_entry_print(register struct igrprte *igr, register int is_interior,
 		metric = 0xffffff;
 	mtu = EXTRACT_16BITS(igr->igr_mtu);
 
-	printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
+	ND_PRINT((ndo, " d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
 	    10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
 	    igr->igr_rel, igr->igr_ld, metric,
-	    mtu, igr->igr_hct);
+	    mtu, igr->igr_hct));
 }
 
-static struct tok op2str[] = {
+static const struct tok op2str[] = {
 	{ IGRP_UPDATE,		"update" },
 	{ IGRP_REQUEST,		"request" },
 	{ 0,			NULL }
 };
 
 void
-igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
+igrp_print(netdissect_options *ndo, register const u_char *bp, u_int length)
 {
 	register struct igrphdr *hdr;
 	register u_char *cp;
@@ -85,39 +109,39 @@ igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
 
 	hdr = (struct igrphdr *)bp;
 	cp = (u_char *)(hdr + 1);
-        (void)printf("igrp:");
+	ND_PRINT((ndo, "igrp:"));
 
 	/* Header */
-	TCHECK(*hdr);
+	ND_TCHECK(*hdr);
 	nint = EXTRACT_16BITS(&hdr->ig_ni);
 	nsys = EXTRACT_16BITS(&hdr->ig_ns);
 	next = EXTRACT_16BITS(&hdr->ig_nx);
 
-	(void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
+	ND_PRINT((ndo, " %s V%d edit=%d AS=%d (%d/%d/%d)",
 	    tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
 	    IGRP_V(hdr->ig_vop),
 	    hdr->ig_ed,
 	    EXTRACT_16BITS(&hdr->ig_as),
 	    nint,
 	    nsys,
-	    next);
+	    next));
 
 	length -= sizeof(*hdr);
 	while (length >= IGRP_RTE_SIZE) {
 		if (nint > 0) {
-			TCHECK2(*cp, IGRP_RTE_SIZE);
-			igrp_entry_print((struct igrprte *)cp, 1, 0);
+			ND_TCHECK2(*cp, IGRP_RTE_SIZE);
+			igrp_entry_print(ndo, (struct igrprte *)cp, 1, 0);
 			--nint;
 		} else if (nsys > 0) {
-			TCHECK2(*cp, IGRP_RTE_SIZE);
-			igrp_entry_print((struct igrprte *)cp, 0, 0);
+			ND_TCHECK2(*cp, IGRP_RTE_SIZE);
+			igrp_entry_print(ndo, (struct igrprte *)cp, 0, 0);
 			--nsys;
 		} else if (next > 0) {
-			TCHECK2(*cp, IGRP_RTE_SIZE);
-			igrp_entry_print((struct igrprte *)cp, 0, 1);
+			ND_TCHECK2(*cp, IGRP_RTE_SIZE);
+			igrp_entry_print(ndo, (struct igrprte *)cp, 0, 1);
 			--next;
 		} else {
-			(void)printf(" [extra bytes %d]", length);
+			ND_PRINT((ndo, " [extra bytes %d]", length));
 			break;
 		}
 		cp += IGRP_RTE_SIZE;
@@ -126,5 +150,5 @@ igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
 	if (nint == 0 && nsys == 0 && next == 0)
 		return;
 trunc:
-	fputs(" [|igrp]", stdout);
+	ND_PRINT((ndo, " [|igrp]"));
 }