source: libpacketdump/ip_17.c @ 5cdb37d

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivendag_formatrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 5cdb37d was ee6e802, checked in by Shane Alcock <salcock@…>, 5 years ago

Updated copyright blurb on all source files

In some cases, this meant adding copyright blurbs to files that
had never had them before.

  • Property mode set to 100644
File size: 2.1 KB
Line 
1/*
2 *
3 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4 * All rights reserved.
5 *
6 * This file is part of libtrace.
7 *
8 * This code has been developed by the University of Waikato WAND
9 * research group. For further information please see http://www.wand.net.nz/
10 *
11 * libtrace is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * libtrace is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 *
24 *
25 */
26#include <stdio.h>
27#include <inttypes.h>
28#include <dlfcn.h>
29#include "libpacketdump.h"
30#include "libtrace.h"
31#include <netinet/udp.h>
32#include <netinet/in.h>
33#include <netdb.h>
34
35
36DLLEXPORT void decode(int link_type UNUSED,const char *packet,unsigned len)
37{
38        struct libtrace_udp *udp = (struct libtrace_udp*)packet;
39        printf(" UDP:");
40        if (SAFE(udp, source)) {
41                struct servent *ent=getservbyport(udp->source,"udp");
42                if(ent) {
43                        printf(" Source %i (%s)",htons(udp->source),ent->s_name);
44                } else {
45                        printf(" Source %i",htons(udp->source));
46                }
47        }
48        else {
49                printf("\n");
50                return;
51        }
52        if (SAFE(udp, dest)) {
53                struct servent *ent=getservbyport(udp->dest,"udp");
54                if(ent) {
55                        printf(" Dest %i (%s)",htons(udp->dest),ent->s_name);
56                } else {
57                        printf(" Dest %i",htons(udp->dest));
58                }
59        }
60        else {
61                printf("\n");
62                return;
63        }
64        printf("\n UDP:");
65        DISPLAYS(udp, len," Len %u");
66        DISPLAYS(udp, check," Checksum %u");
67        printf("\n");
68        if (htons(udp->source) < htons(udp->dest)) 
69                decode_next(packet+sizeof(*udp),len-sizeof(*udp),"udp",htons(udp->source));
70        else
71                decode_next(packet+sizeof(*udp),len-sizeof(*udp),"udp",htons(udp->dest));
72        return;
73}
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