4.3 BSD networking bugs

[Chris Torek]

In article <204 at hsi86.hsi.UUCP> stevens at hsi.UUCP (Richard Stevens) writes:
>(1) When using UNIX domain datagrams, only the first 14 bytes of
>	the sender's socket address are passed with the datagram.
>	It looks like sbappendaddr() ...

Yep.  Fixed in 4.4BSD?  (4.4 will have variable length socket addresses,
which are required by various ISO protocols.)

>(2) When using XNS datagrams (IDP protocol) you have to explicitly
>	call bind() to assign an address to yourself, if you want
>	the other end to be able to respond to you, otherwise an all
>	zero address gets sent along with the datagram.

spp_usrreq calls ns_pcbbind with a null `nam', telling it to choose
a local port.  ns_pcbbind defers choosing a local host address, however,
until send time, just like the TCP code.  Alas, ns_output does not
contain the `#ifndef notdef' (=~ `if true') code that appears in
ip_output....
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris at mimsy.umd.edu	Path:	uunet!mimsy!chris