source: test/test-fragment.c

/*
 * This file is part of libtrace
 *
 * Copyright (c) 2007 The University of Waikato, Hamilton, New Zealand.
 * Authors: Daniel Lawson 
 *          Perry Lorier 
 *          
 * All rights reserved.
 *
 * This code has been developed by the University of Waikato WAND 
 * research group. For further information please see http://www.wand.net.nz/
 *
 * libtrace is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * libtrace is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with libtrace; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id$
 *
 */
#ifndef WIN32
#  include <sys/time.h>
#  include <netinet/in.h>
#  include <netinet/in_systm.h>
#  include <netinet/tcp.h>
#  include <netinet/ip.h>
#  include <netinet/ip_icmp.h>
#  include <arpa/inet.h>
#  include <sys/socket.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <string.h>

#include "libtrace.h"

struct libtrace_t *trace;

void iferr(libtrace_t *trace)
{
        libtrace_err_t err = trace_get_err(trace);
        if (err.err_num==0)
                return;
        printf("Error: %s\n",err.problem);
        exit(1);
}

int main(int argc, char *argv[]) {
        char *uri = "erf:traces/fragtest.erf.gz";
        int error = 0;
        uint64_t totaloffset = 0;
        int morefrags = 0;
        int count = 0;
        int psize = 0;
        struct libtrace_packet_t *packet;
        uint16_t fragoff;
        uint8_t more;

        trace = trace_create(uri);
        iferr(trace);

        if (trace_start(trace)==-1) {
                iferr(trace);
        }
        
        packet=trace_create_packet();
        for (;;) {
                if ((psize = trace_read_packet(trace, packet)) <=0) {
                        if (psize != 0) error = 1;
                        break;
                }
                if (psize == 0) {
                        error = 0;
                        break;
                }
        
                fragoff = trace_get_fragment_offset(packet, &more);
                totaloffset += fragoff;
                if (more)
                        morefrags ++;
                
                count ++;
        }
        trace_destroy_packet(packet);
        if (error == 0) {
                if (count == 10000) {
                        printf("success: 10000 packets read\n");
                } else {
                        printf("fail: 10000 packets expected, %d seen\n",count);
                        error = 1;
                }
                
                if (totaloffset == 69192) {
                        printf("success: frag offset sum is 69192\n");
                } else {
                        printf("fail: expected frag offset sum of 69192, got %lu\n", totaloffset);
                        error = 1;
                }

                if (morefrags == 16) {
                        printf("success: counted 16 MORE_FRAG flags\n");
                } else {
                        printf("fail: expected 16 MORE_FRAG flags, got %d\n", morefrags);
                        error = 1;
                }

        } else {
                iferr(trace);
        }
        trace_destroy(trace);
        return error;
}