This is a tweak for the tor-fw-helper port to windows.

- Update configure script to test for libminiupnpc along with the
  libws2_32 and libiphlpapi libraries required by libminiupnpc
- When building tor-fw-helper, link in libiphlpapi
- Link in libminiupnpc statically becasue I could not get the DLL
  to link properly
- Call WSAStartup before doing network operations
- Fix up a compiler warning about uninitialized backend_state

N.B. The changes to configure.in and Makefile.am will break on non-
Windows platforms.

This behavior is normal when we want more data than the evbuffer
actually has for us.  We'll ask for (say) 7 bytes, get only 5
(because that's all there is), try to parse the 5 bytes, and get
told "no, I want 7".  One option would be to bail out early whenever
want_length is > buflen, but sometimes we use an over-large
want_length.  So instead, let's just remove the warning here: it's
not a bug after all.

(Earlier Libevent versions have bufferevent bugs that affect us, and
are missing some APIs that it would be handy to use.)

Conflicts:
	src/or/config.c

Fix for bug 3747; bugfix on 0.2.2.26-beta.

Sebastian Hahn authored 13 years ago and Nick Mathewson committed 13 years ago

ddc65e2b had broken this

It turns out that it wasn't enough to set the configuration to
"auto", since the correct behavior for "auto" had been disabled in
microdesc.c.   :p

(Hasn't been in a release yet, so doesn't need a changes entry.)

Also remove a few other related warnings that could occur during the ssl
handshake. We do this because the relay operator can't do anything about
them, and they aren't their fault.

Starting with Lion, Apple decided to deprecate the system openssl. We
can start requiring users to install their own openssl once OS X doesn't
ship with it anymore.

Robert Ransom authored 13 years ago and Nick Mathewson committed 13 years ago

I should have added this before implementing #2411.

Since the prop171 stuff, it had instead made Tor bind port 0, and
re-bind it differently all the time.

Resolves bug3704; not in any released version.

this gets rid of a warning about signed/unsigned comparison