70 lines
1.3 KiB
Plaintext
70 lines
1.3 KiB
Plaintext
=pod
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=head1 NAME
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SSL_get_version, SSL_is_dtls - get the protocol information of a connection
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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const char *SSL_get_version(const SSL *ssl);
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int SSL_is_dtls(const SSL *ssl);
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=head1 DESCRIPTION
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SSL_get_version() returns the name of the protocol used for the
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connection B<ssl>. It should only be called after the initial handshake has been
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completed. Prior to that the results returned from this function may be
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unreliable.
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SSL_is_dtls() returns one if the connection is using DTLS, zero if not.
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=head1 RETURN VALUES
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SSL_get_version() returns one of the following strings:
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=over 4
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=item SSLv3
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The connection uses the SSLv3 protocol.
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=item TLSv1
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The connection uses the TLSv1.0 protocol.
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=item TLSv1.1
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The connection uses the TLSv1.1 protocol.
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=item TLSv1.2
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The connection uses the TLSv1.2 protocol.
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=item unknown
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This indicates an unknown protocol version.
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=back
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=head1 SEE ALSO
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L<ssl(3)>
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=head1 HISTORY
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SSL_is_dtls() was added in OpenSSL 1.1.0.
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=head1 COPYRIGHT
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Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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