185 lines
5.3 KiB
Groff
185 lines
5.3 KiB
Groff
.\" $NetBSD: SSL_free.3,v 1.8 2003/07/24 14:16:45 itojun Exp $
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.\" ======================================================================
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.\"
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.IX Title "SSL_free 3"
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.TH SSL_free 3 "0.9.7b" "2001-02-13" "OpenSSL"
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.UC
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.SH "NAME"
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SSL_free \- free an allocated \s-1SSL\s0 structure
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.SH "LIBRARY"
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libcrypto, -lcrypto
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/ssl.h>
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.Ve
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.Vb 1
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\& void SSL_free(SSL *ssl);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISSL_free()\fR decrements the reference count of \fBssl\fR, and removes the \s-1SSL\s0
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structure pointed to by \fBssl\fR and frees up the allocated memory if the
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the reference count has reached 0.
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.SH "NOTES"
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.IX Header "NOTES"
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\&\fISSL_free()\fR also calls the \fIfree()\fRing procedures for indirectly affected items, if
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applicable: the buffering \s-1BIO\s0, the read and write BIOs,
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cipher lists specially created for this \fBssl\fR, the \fB\s-1SSL_SESSION\s0\fR.
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Do not explicitly free these indirectly freed up items before or after
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calling \fISSL_free()\fR, as trying to free things twice may lead to program
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failure.
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.PP
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The ssl session has reference counts from two users: the \s-1SSL\s0 object, for
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which the reference count is removed by \fISSL_free()\fR and the internal
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session cache. If the session is considered bad, because
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SSL_shutdown(3) was not called for the connection
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and SSL_set_shutdown(3) was not used to set the
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\&\s-1SSL_SENT_SHUTDOWN\s0 state, the session will also be removed
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from the session cache as required by \s-1RFC2246\s0.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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\&\fISSL_free()\fR does not provide diagnostic information.
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.PP
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SSL_new(3), SSL_clear(3),
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SSL_shutdown(3), SSL_set_shutdown(3),
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ssl(3)
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