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diff --git a/deps/openssl/openssl/doc/man3/SSL_set_bio.pod b/deps/openssl/openssl/doc/man3/SSL_set_bio.pod
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+++ b/deps/openssl/openssl/doc/man3/SSL_set_bio.pod
@@ -0,0 +1,114 @@
+=pod
+
+=head1 NAME
+
+SSL_set_bio, SSL_set0_rbio, SSL_set0_wbio - connect the SSL object with a BIO
+
+=head1 SYNOPSIS
+
+ #include <openssl/ssl.h>
+
+ void SSL_set_bio(SSL *ssl, BIO *rbio, BIO *wbio);
+ void SSL_set0_rbio(SSL *s, BIO *rbio);
+ void SSL_set0_wbio(SSL *s, BIO *wbio);
+
+=head1 DESCRIPTION
+
+SSL_set0_rbio() connects the BIO B<rbio> for the read operations of the B<ssl>
+object. The SSL engine inherits the behaviour of B<rbio>. If the BIO is
+non-blocking then the B<ssl> object will also have non-blocking behaviour. This
+function transfers ownership of B<rbio> to B<ssl>. It will be automatically
+freed using L<BIO_free_all(3)> when the B<ssl> is freed. On calling this
+function, any existing B<rbio> that was previously set will also be freed via a
+call to L<BIO_free_all(3)> (this includes the case where the B<rbio> is set to
+the same value as previously).
+
+SSL_set0_wbio() works in the same as SSL_set0_rbio() except that it connects
+the BIO B<wbio> for the write operations of the B<ssl> object. Note that if the
+rbio and wbio are the same then SSL_set0_rbio() and SSL_set0_wbio() each take
+ownership of one reference. Therefore it may be necessary to increment the
+number of references available using L<BIO_up_ref(3)> before calling the set0
+functions.
+
+SSL_set_bio() is similar to SSL_set0_rbio() and SSL_set0_wbio() except
+that it connects both the B<rbio> and the B<wbio> at the same time, and
+transfers the ownership of B<rbio> and B<wbio> to B<ssl> according to
+the following set of rules:
+
+=over 2
+
+=item *
+
+If neither the B<rbio> or B<wbio> have changed from their previous values
+then nothing is done.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are different and both are different
+to their
+previously set values then one reference is consumed for the rbio and one
+reference is consumed for the wbio.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are the same and the B<rbio> is not
+the same as the previously set value then one reference is consumed.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are the same and the B<rbio> is the
+same as the previously set value, then no additional references are consumed.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are different and the B<rbio> is the
+same as the
+previously set value then one reference is consumed for the B<wbio> and no
+references are consumed for the B<rbio>.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are different and the B<wbio> is the
+same as the previously set value and the old B<rbio> and B<wbio> values
+were the same as each other then one reference is consumed for the B<rbio>
+and no references are consumed for the B<wbio>.
+
+=item *
+
+If the B<rbio> and B<wbio> parameters are different and the B<wbio>
+is the same as the
+previously set value and the old B<rbio> and B<wbio> values were different
+to each
+other then one reference is consumed for the B<rbio> and one reference
+is consumed
+for the B<wbio>.
+
+=back
+
+Because of this complexity, this function should be avoided;
+use SSL_set0_rbio() and SSL_set0_wbio() instead.
+
+=head1 RETURN VALUES
+
+SSL_set_bio(), SSL_set0_rbio() and SSL_set0_wbio() cannot fail.
+
+=head1 SEE ALSO
+
+L<SSL_get_rbio(3)>,
+L<SSL_connect(3)>, L<SSL_accept(3)>,
+L<SSL_shutdown(3)>, L<ssl(7)>, L<bio(7)>
+
+=head1 HISTORY
+
+SSL_set0_rbio() and SSL_set0_wbio() were added in OpenSSL 1.1.0.
+
+=head1 COPYRIGHT
+
+Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut