#include extern "C" { #include "decpcap.h" } int process_tcp (u_char * userdata, const dp_header * header, const u_char * m_packet) { std::cout << "Callback for processing TCP packet called" << std::endl; } int main (int argc, char ** argv) { if (argc < 2) { std::cout << "Please, enter a filename" << std::endl; } char* errbuf = new char[DP_ERRBUFF_SIZE]; dp_handle * newhandle = dp_open_offline(argv[1], errbuf); dp_addcb (newhandle, dp_packet_tcp, process_tcp); int ret = dp_dispatch (newhandle, -1, NULL, 0); if (ret == -1) { std::cout << "Error dispatching: " << dp_geterr(newhandle); } }