SSL_FREE
Section: OpenSSL (3)
Updated: 2020-07-28
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NAME
SSL_free - free an allocated SSL structure
SYNOPSIS
#include <openssl/ssl.h>
void SSL_free(SSL *ssl);
DESCRIPTION
SSL_free() decrements the reference count of
ssl, and removes the
SSL
structure pointed to by
ssl and frees up the allocated memory if the
reference count has reached 0.
If
ssl is
NULL nothing is done.
NOTES
SSL_free() also calls the
free()ing procedures for indirectly affected items, if
applicable: the buffering
BIO, the read and write BIOs,
cipher lists specially created for this
ssl, the
SSL_SESSION.
Do not explicitly free these indirectly freed up items before or after
calling
SSL_free(), as trying to free things twice may lead to program
failure.
The ssl session has reference counts from two users: the SSL object, for
which the reference count is removed by SSL_free() and the internal
session cache. If the session is considered bad, because
SSL_shutdown(3) was not called for the connection
and SSL_set_shutdown(3) was not used to set the
SSL_SENT_SHUTDOWN state, the session will also be removed
from the session cache as required by RFC2246.
RETURN VALUES
SSL_free() does not provide diagnostic information.
SSL_new(3), SSL_clear(3),
SSL_shutdown(3), SSL_set_shutdown(3),
ssl(7)
COPYRIGHT
Copyright 2000-2016 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
<https://www.openssl.org/source/license.html>.