[Winpcap-users] pushing captured data to windows pipe

[Vito Arh]

Hello. I am trying to open pipe and send data to pipe (for later import in wireshark via wireshark -k -i  \\.\pipe\DLC_s ).
I do it this way:
hPipe = CreateNamedPipe( \\.\pipe\DLC_s, PIPE_ACCESS_OUTBOUND, PIPE_NOWAIT, PIPE_UNLIMITED_INSTANCES, 256, 256, 1000, NULL);

ConnectNamedPipe(hPipe, NULL);

dumpfile = (unsigned char*) pcap_dump_open(adhandle, argv[5]);

            if(dumpfile==NULL)
            {
                fprintf(stderr,"\nError opening output file\n");
                return -1;
            }
            printf("Dump file opened!\n");

The problem is that I cannot open file with pcap_dump_open. If I try opening with FILE *output it does without errors. This function pcap_dump_open returns NULL pointer.
How should I do that?
The problem is that I try to sniff some interface which wireshark cannot recognise (on COM port).
Thanks for help!
Vito.




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