Introduction This Manual describes the programming interface and the source code of WinPcap. It provides detailed descriptions of the functions and structures exported to programmers, along with …

Oct 19, 2009 · The problem is due to the fact that the standard WinPcap include file "pcap.h" contains only a forward declaration of "struct pcap", but not the actual definition of it.

Include the file pcap.h at the beginning of every source file that uses the functions exported by library. If your program uses Win32 specific functions of WinPcap, remember to include WPCAP among the …

PCAP_IF_ interface flags. Currently the only possible flag is PCAP_IF_LOOPBACK, that is set if the interface is a loopback interface. Definition at line 153 of file incs/pcap.h.

pcap.h File Reference Go to the source code of this file.

Both libpcap and WinPcap provide the pcap_findalldevs_ex () function for this purpose: this function returns a linked list of pcap_if structures, each of which contains comprehensive information about …

The functions used to filter packets are pcap_compile () and pcap_setfilter (). pcap_compile () takes a string containing a high-level Boolean (filter) expression and produces a low-level byte code that can …

pcap_compile_nopcap () is similar to pcap_compile () except that instead of passing a pcap structure, one passes the snaplen and linktype explicitly. It is intended to be used for compiling filters for direct …

The file is opened with pcap_open_offline (), then the usual pcap_loop () is used to sequence through the packets. As you can see, reading packets from an offline capture is nearly identical to receiving …

FreeBSD: the first time you call the pcap_stat(), the function takes several seconds to return. Therefore, programs like Analyzer seem to hang up for 20-30 seconds at the beginning of the capture (if this is …