pcap

Closed . This question needs to be more focused . It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post . Closed last year . I am trying my hands understanding PCAP libraries. I am able to apply a filter and get the TCP payload at port 80. But what next ? How can I read the HTTP data - suppose I want to know the "User Agent" field value in the http header..how should I proceed ? I have searched the website (and googled a lot too), and could find a related thread here : writing a http sniffer . But this

During a normal browsing session I want to edit a specific javascript file before the browser receives since once it gets there it's impossible to edit. Is there are any tool for this? For what I need it I can't just save it and edit it on my disk. I'm ready to learn how to program it myself but if anyone can point out more or less what I have to do I'd be very grateful. I'd have to intercept the packets until I have the whole file while blocking the browser from receiving it any part of it, then edit it manually and forward it to the same port. I don't think I can do this by just using pcap,

I'm working throurgh a project with pcap and wireless. Following an example posted in response to oe of my earlier questions I am trying to extract the mac addresses from wireless frames. I have created structures for the radiotap header and a basic management frame. For some reason when it comes to trying to output the mac addresses I am printing out the wrong data. When I compare to wireshark I don't see why the radio tap data is printing out correctly but the mac addresses are not. I don't see any additional padding in the hex dump that wireshark displays when i look at the packets and

These two functions are both infinite loops, and the programe hangs once called in the same thread. gtk_main(); ... pcap_loop(adhandle, 0, packet_handler, NULL); When I click the "start" button,I want pcap to start working;And if I press the "stop" button, pcap stop . How do I create a child thread and run pcap_loop(adhandle, 0, packet_handler, NULL); instead? Unless I am missing something, your problem is that both GTK+ and libpcap are organized around events fired from a main loop. Without looking through the documentation, I don't know about GTK+, but there is another mode of operation for