[Winpcap-users] is there any TCP packet order?

[Global Cool]

I am reading tcp packets from a tcp connection using the following code:

//start the capture
     while((res = pcap_next_ex( fp, &header, &pkt_data)) >= 0)
    {

        if(res == 0)
        /* Timeout elapsed */
        continue;
        /* Print the packet */
        // 0 to 53 character seems to have packet information not the data
        for (i=54; i < header->caplen ; i++)
        {
                fprintf(dumpfile,"%c", pkt_data[i]);
        }
        fflush(dumpfile);
    }


///

every thing works OK. but it seems that this code sometime receive packets
in different order. I mean two packet got swap! (1st packet come second and
the 2nd packet come first).
but when i am running this code, at the same time i am running another
software (smartSniff) which can print the packet data in correct order..

So i am wondering is there any way to determine the correct packet order
from tcp header information?

Thanks.
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