msgsnarf - sniff chat messages

       Dug Song <dugsong@monkey.org>

                                                                                                     MSGSNARF(8)

msgsnarf  records  selected  messages  from AOL Instant Messenger, ICQ 2000, IRC, MSN Messenger, or Yahoo
       Messenger chat sessions.

       msgsnarf - sniff chat messages

-iinterface
              Specify the interface to listen on.

       -ppcapfile
              Process packets from the specified PCAP capture file instead of the network.

       -v     "Versus" mode. Invert the sense of matching, to select non-matching messages.

       pattern
              Specify regular expression for message matching.

       expression
              Specify a tcpdump(8) filter expression to select traffic to sniff.

dsniff(8)

msgsnarf [-iinterface | -ppcapfile] [[-v] pattern[expression]]