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Update version docs

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Make it clear that you should not attempt to get the version before the
first handshake is complete.

Fixes #2893

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6013)
This commit is contained in:
Matt Caswell 2018-04-19 13:32:45 +01:00
parent ff25dd1a47
commit ddba302a0f
1 changed files with 6 additions and 7 deletions
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13
doc/man3/SSL_get_version.pod
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@ -20,15 +20,14 @@ protocol information of a connection
=head1 DESCRIPTION
SSL_client_version() returns the protocol version used by the client when
initiating the connection.
SSL_get_version() returns the name of the protocol used for the
connection.
initiating the connection. SSL_get_version() returns the name of the protocol
used for the connection. SSL_version() returns the protocol version used for the
connection. They should only be called after the initial handshake has been
completed. Prior to that the results returned from these functions may be
unreliable.
SSL_is_dtls() returns one if the connection is using DTLS, zero if not.
SSL_version() returns the protocol version used for the connection.
=head1 RETURN VALUES
SSL_get_version() returns one of the following strings:
@ -57,7 +56,7 @@ The connection uses the TLSv1.3 protocol.
=item unknown
This indicates that no version has been set (no connection established).
This indicates an unknown protocol version.
=back