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.\" ========================================================================
.\"
.IX Title "SSL_free 3"
.TH SSL_free 3 2019-12-20 1.0.2u OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH NAME
SSL_free \- free an allocated SSL structure
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
\&
\& void SSL_free(SSL *ssl);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBSSL_free()\fR decrements the reference count of \fBssl\fR, and removes the SSL
structure pointed to by \fBssl\fR and frees up the allocated memory if the
reference count has reached 0.
.SH NOTES
.IX Header "NOTES"
\&\fBSSL_free()\fR also calls the \fBfree()\fRing procedures for indirectly affected items, if
applicable: the buffering BIO, the read and write BIOs,
cipher lists specially created for this \fBssl\fR, the \fBSSL_SESSION\fR.
Do not explicitly free these indirectly freed up items before or after
calling \fBSSL_free()\fR, as trying to free things twice may lead to program
failure.
.PP
The ssl session has reference counts from two users: the SSL object, for
which the reference count is removed by \fBSSL_free()\fR and the internal
session cache. If the session is considered bad, because
\&\fBSSL_shutdown\fR\|(3) was not called for the connection
and \fBSSL_set_shutdown\fR\|(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.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBSSL_free()\fR does not provide diagnostic information.
.PP
\&\fBSSL_new\fR\|(3), \fBSSL_clear\fR\|(3),
\&\fBSSL_shutdown\fR\|(3), \fBSSL_set_shutdown\fR\|(3),
\&\fBssl\fR\|(3)