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=pod
=head1 NAME
d2i_SSL_SESSION, i2d_SSL_SESSION - convert SSL_SESSION object from/to ASN1 representation
=head1 SYNOPSIS
#include <openssl/ssl.h>
SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
long length);
int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
=head1 DESCRIPTION
These functions decode and encode an SSL_SESSION object.
For encoding details see L<d2i_X509(3)>.
SSL_SESSION objects keep internal link information about the session cache
list, when being inserted into one SSL_CTX object's session cache.
One SSL_SESSION object, regardless of its reference count, must therefore
only be used with one SSL_CTX object (and the SSL objects created
from this SSL_CTX object).
=head1 RETURN VALUES
d2i_SSL_SESSION() returns a pointer to the newly allocated SSL_SESSION
object. In case of failure the NULL-pointer is returned and the error message
can be retrieved from the error stack.
i2d_SSL_SESSION() returns the size of the ASN1 representation in bytes.
When the session is not valid, B<0> is returned and no operation is performed.
=head1 SEE ALSO
L<ssl(7)>, L<SSL_SESSION_free(3)>,
L<SSL_CTX_sess_set_get_cb(3)>,
L<d2i_X509(3)>
=head1 COPYRIGHT
Copyright 2001-2016 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
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