|  | =pod | 
|  |  | 
|  | =head1 NAME | 
|  |  | 
|  | SSL_get_version - get the protocol version of a connection. | 
|  |  | 
|  | =head1 SYNOPSIS | 
|  |  | 
|  | #include <openssl/ssl.h> | 
|  |  | 
|  | const char *SSL_get_version(const SSL *ssl); | 
|  |  | 
|  | =head1 DESCRIPTION | 
|  |  | 
|  | SSL_get_cipher_version() returns the name of the protocol used for the | 
|  | connection B<ssl>. | 
|  |  | 
|  | =head1 RETURN VALUES | 
|  |  | 
|  | The following strings can occur: | 
|  |  | 
|  | =over 4 | 
|  |  | 
|  | =item SSLv2 | 
|  |  | 
|  | The connection uses the SSLv2 protocol. | 
|  |  | 
|  | =item SSLv3 | 
|  |  | 
|  | The connection uses the SSLv3 protocol. | 
|  |  | 
|  | =item TLSv1 | 
|  |  | 
|  | The connection uses the TLSv1 protocol. | 
|  |  | 
|  | =item unknown | 
|  |  | 
|  | This indicates that no version has been set (no connection established). | 
|  |  | 
|  | =back | 
|  |  | 
|  | =head1 SEE ALSO | 
|  |  | 
|  | L<ssl(3)|ssl(3)> | 
|  |  | 
|  | =cut |