If use_ssl3 is true, this forces this to use
SSL 3.0 rather than trying to properly negotiate the right version of TLS or SSL to use.
This can be used when talking to servers that do not implement the fallbacks correctly and which will therefore fail to handshake with a "modern" TLS handshake attempt.
| this | |
| use_ssl3 |
whether to use SSL 3.0 |