Unable to connect to test.salesforce.com with SSL - php

Question

I'm having some problems connecting to a SOAP Service at https://test.salesforce.com. I use the Toolkit-for-PHP v20.0 (https://github.com/developerforce/Force.com-Toolkit-for-PHP) which is based on PHP's native SoapClient.
Software:
MacOS 10.8
Macports 2.1.2
PHP 5.3.15
OpenSSL 1.0.1_c
The only error message I receive after 30 seconds (timeout?) is:
[SoapFault]
Could not connect to host
Strangely, connecting to http://test.salesforce.com (without SSL) or connecting to https://login.salesforce.com (with SSL) works as expected.
I even managed to log into https://test.salesforce.com using soapUI.
So my guess is there has to be some certification/handshake problem but i can't figure out how to get a more detailed error message or how to change anything about the toolkit setup.
I searched google, stackoverflow and the SalesForce discussion boards but nobody seems to have this specific sandbox+SSL problem.
Does anyone have a clue how to debug this problem?
OK, i think it's an issue with macports' openssl binary. Apparently the handshake fails because my client is attempting a SSLv2/SSLv3 handshake which the server does not understand.
openssl s_client -connect test.salesforce.com:443 -state
CONNECTED(00000003)
SSL_connect:before/connect initialization
SSL_connect:SSLv2/v3 write client hello A
[...end...]
Same command with forced SSLv3:
openssl s_client -ssl3 -connect test.salesforce.com:443 -state
CONNECTED(00000003)
SSL_connect:before/connect initialization
SSL_connect:SSLv3 write client hello A
SSL_connect:SSLv3 read server hello A
depth=1 O = VeriSign Trust Network, OU = "VeriSign, Inc.", OU = VeriSign International Server CA - Class 3, OU = www.verisign.com/CPS Incorp.by Ref. LIABILITY LTD.(c)97 VeriSign
verify error:num=20:unable to get local issuer certificate
verify return:0
SSL_connect:SSLv3 read server certificate A
SSL_connect:SSLv3 read server done A
SSL_connect:SSLv3 write client key exchange A
SSL_connect:SSLv3 write change cipher spec A
SSL_connect:SSLv3 write finished A
SSL_connect:SSLv3 flush data
SSL_connect:SSLv3 read finished A
[...and so forth...]
Not really sure what to make out of this... the SalesForce toolkit-for-php uses PHP's native SoapClient and I don't know how to force it to use SSLv3.

Answer 1

This is a known bug of the latest versions of macports' port of openssl 1.0.1:
http://trac.macports.org/ticket/33715
Possible solution: install an older openssl version, in this case openssl 1.0.0h:
cd /opt/local/src
sudo svn checkout -r 90715 http://svn.macports.org/repository/macports/trunk/dports/devel/openssl
cd openssl
sudo port install
Taken from:
https://trac.macports.org/wiki/howto/InstallingOlderPort
http://trac.macports.org/ticket/33715#comment:30