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85032506d6
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/6015)
57 lines
879 B
Plaintext
57 lines
879 B
Plaintext
=pod
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=head1 NAME
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SSL_get_version - get the protocol version 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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=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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=head1 RETURN VALUES
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The following strings can be returned:
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=over 4
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=item SSLv2
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The connection uses the SSLv2 protocol.
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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)|ssl(3)>
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=cut
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