On Mon, Sep 16, 2013 at 03:17:54PM -0400, Jeff Morriss wrote: > On 09/16/13 14:57, Guy Harris wrote: > > > > On Sep 16, 2013, at 7:20 AM, Anders Broman <anders.bro...@ericsson.com> > > wrote: > > > >> In serv_name_lookup() we call getservbyport() for ports not resolved in > >> the IANA port list the function > >> Seems quite expensive so my question is does it add any value or can I > >> remove it? > > > > At least on UN*Xes, getservbyport() does one or more of: > > > > 1) look in /etc/services, which is probably based on a > > (possibly-out-of-date) version of, err, umm, the IANA port list; > > > > 2) query some network service to do a lookup - and that service is > > probably using its own database, based on a (possibly-out-of-date) version > > of, err, umm, the IANA port list. > > ... possibly with some modifications for local use. But I imagine the > number of people who actually go through the trouble to run a customized > service database to be sufficiently few that it's not worth slowing > everyone else down for.
It sounds for me as a good Preference option. ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev@wireshark.org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-requ...@wireshark.org?subject=unsubscribe
