IO::Socket actually does work under Solaris. I've been using it for XML servers on 4 different Solaris boxes ranging from 5.6 to 5.8. It's actually really sweet.
I actually have done the same, and have successfully coded many a daemon to run on solaris systems. Sun can be very nice to you when you learn to use it.
The suspense is killing me. How did you get it to work?
I was trying to connect as a client to my collegue's daemon
written in C which created and was listening on
/tmp/mysocket all done on Solaris 7. Yesterday, I was sure
that I had read that Sun had hard-coded values, but today
all I can find in the docs is the Camel book mentioning that
ancient Perl scripts had values hard-coded (which, over time,
mutated into "It's not my fault after all").
Here's the code for the curious
$socketname = "/tmp/mysocket";
socket(SOCK, PF_UNIX, SOCK_STREAM, 0) or die "socket: $!";
connect(SOCK, sockaddr_un($socketname)) or die "connect: $!";