Hans Fugal <hans@xxxxxxxxx> writes: > Leonard paniq Ritter sent me a nifty patch for hearnet some time ago. I > really dig it, and I finally got around to incorporating the patch and > releasing a new version. Here's what paniq has to say about it: > > changed code so that it uses 32-voice polyphony and plays bridges / > chromatic orders. > > as an effect, you get very harmonic sounds if packet sizes on a site > are the same, and quite weird stuff if packet sizes vary. > > Go get it and see how much cooler it sounds! > > http://hans.fugal.net/src/hearnet Wow, I love this! Below is a patch to add filter expression support to hearnet, so now you can say ./hearnet eth0 "udp port 53" or whatever kind of filter expression you can think of. Very nice for listening in on just specific traffic patterns! --- hearnet-0.0.4/hearnet.cpp.orig 2005-09-23 03:02:40.000000000 +0200 +++ hearnet-0.0.4/hearnet.cpp 2005-09-30 13:36:26.000000000 +0200 @@ -163,7 +163,7 @@ { fprintf(stderr, "\n" - "usage: hearnet [interface]\n" + "usage: hearnet [interface [filter-expression]]\n" "Default interface is eth0.\n" ); exit(1); @@ -228,7 +228,15 @@ fprintf(stderr,"pcap_open_live; %s\n", perrbuf); usage(); } - + + if (argc > 2) { + bpf_program bpfprog; + if (pcap_compile(hdl_pcap, &bpfprog, argv[2], 1, 0XFFFFFFFF) != -1) { + pcap_setfilter(hdl_pcap, &bpfprog); + } else { + printf("%s", pcap_geterr(hdl_pcap)); + } + } /*}}}*/ timeval tv_start; -- CYa, Mario -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 188 bytes Desc: not available Url : http://music.columbia.edu/pipermail/linux-audio-user/attachments/20050930/1ae13cb6/attachment.bin
