Add CAP_FCNTL and use cap_fcntls_limit().

[tcpdump] / print-igrp.c

diff --git a/print-igrp.c b/print-igrp.c
index 3cede7ec89da6984cadd3dc2d829748550685d9e..fbb313427c72026ce5795ec508fe9618e33c48a7 100644 (file)
--- a/print-igrp.c
+++ b/print-igrp.c
@@ -21,41 +21,65 @@
  * Initial contribution from Francis Dupont ([email protected])
  */
 
-#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]"));
 }