SSL_GET_VERSION(3) BSD Library Functions Manual SSL_GET_VERSION(3)NAMESSL_get_version — get the protocol version of a connection
SYNOPSIS
#include <openssl/ssl.h>
const char *
SSL_get_version(const SSL *ssl);
DESCRIPTIONSSL_get_version() returns the name of the protocol used for the connec‐
tion ssl.
RETURN VALUES
The following strings can be returned:
"SSLv2"
The connection uses the SSLv2 protocol.
"SSLv3"
The connection uses the SSLv3 protocol.
"TLSv1"
The connection uses the TLSv1.0 protocol.
"TLSv1.1"
The connection uses the TLSv1.1 protocol.
"TLSv1.2"
The connection uses the TLSv1.2 protocol.
"unknown"
This indicates that no version has been set (no connection estab‐
lished).
SEE ALSOssl(3)BSD May 15, 2024 BSD