With earlier versions of RPC and TIRPC it seems that svctcp_create()
calles listen() on the socket (as seen by debugger and strace).
Tooltalk expects this behavior.
However, with newer systems (ArchLinux 5/18+ and similar bleeding edge
versions of SuSE's equivalent: Tumbleweed), this behavior seems to
have changed.
ttsession goes into an infinite loop trying to accept() a connection
in the TIRPC library (via svc_getreqset()).
It appears listen() is no longer called on the socket when it is
created via svctcp_create(). The hack in this commit, always causes
listen() to be called on the socket, and seems to resolve the problem.
But it is a hack I think. I don't know if this is the correct
behavior of svctcp_create() or we were just lucky before.
This is enabled by default. To disable, add:
in the config/cf/site.def or host.def file.
You will need to have the libtirpc-dev package installed.
The benefit is that you will no longer need to run rpcbind in insecure
mode (the -i option). There are other benefits we may be able to take
advantage of in the future, like supporting IPV6 for ToolTalk.
