> > > control message with the time to live > > > field of the received packet as a byte. Not supported for > > > .B SOCK_STREAM > > > @@ -789,6 +789,20 @@ received datagrams. Linux has the more g > > > .I IP_PKTINFO > > > for the same task. > > > .PP > > > +Some BSD sockets implementations also provide > > > +.I IP_RECVTTL > > > +option, but ancillary message with type > > > +.I IP_RECVTTL > > > +is passed with incoming packet. It's different from > > > +.I IP_TTL > > > +used in Linux. > > > > From reading the sources, Linux appears to have both > > IP_RECVTTL and IP_TTL. So, does there not also need > > to be some documentation of the "real" IP_RECVTTL? > > You seems to be confused ;). In short:
Try "ignorant and in a hurry" ;-) (a holiday looms). Thanks for the clarification. > > > +.PP > > > +Using > > > +.I SOL_IP > > > +socket options level isn't portable, BSD-based stacks use > > > +.I IPPROTO_IP > > > +level. > > > > Recently (not yet published), I went though ip(7), tcp(7), udp(7) > > etc, and changed SOL_IP to IPPROTO_IP, SOL_TCP to IPPROTO_TCP, > > etc, on the basis that > > > > -- the IPPROTO_* constants are what appear in POSIX, and > > That's good enough reason, IMHO. Thanks. I'd be interested in input from others also, just to see if there is some consensus. Cheers, Michael -- Michael Kerrisk maintainer of Linux man pages Sections 2, 3, 4, 5, and 7 Want to help with man page maintenance? Grab the latest tarball at ftp://ftp.win.tue.nl/pub/linux-local/manpages/ and grep the source files for 'FIXME'. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
