#142 Gethostbyname error

[Harley Laue]

There is lack of checking to see if gethostbyname
succeeds or not, if it has trouble getting the IP from
that it crashes. A work around is to actually check to
see if it got something usefull. The problem is in
src/linux/ztcp.c. I'm going to submit a patch which
prints 127.0.0.1 if it finds an error, otherwise it
does the normal method. I don't make many patches so I
just did a "diff -u ztcp.c.old ztcp.c" from the
src/linux directory.

I also debated where I should submit this or not since
in the WIP netplay is dead.

[Harley Laue]

ztcp.c patch against 1.42