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132 .\" ========================================================================
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134 .IX Title "SSL_free 3"
135 .TH SSL_free 3 "2009-04-11" "0.9.8k" "OpenSSL"
136 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
137 .\" way too many mistakes in technical documents.
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139 .nh
140 .SH "NAME"
141 SSL_free \- free an allocated SSL structure
142 .SH "SYNOPSIS"
143 .IX Header "SYNOPSIS"
144 .Vb 1
145 \& #include <openssl/ssl.h>
146 \&
147 \& void SSL_free(SSL *ssl);
148 .Ve
149 .SH "DESCRIPTION"
150 .IX Header "DESCRIPTION"
151 \&\fISSL_free()\fR decrements the reference count of \fBssl\fR, and removes the \s-1SSL\s0
152 structure pointed to by \fBssl\fR and frees up the allocated memory if the
153 reference count has reached 0.
154 .SH "NOTES"
155 .IX Header "NOTES"
156 \&\fISSL_free()\fR also calls the \fIfree()\fRing procedures for indirectly affected items, if
157 applicable: the buffering \s-1BIO\s0, the read and write BIOs,
158 cipher lists specially created for this \fBssl\fR, the \fB\s-1SSL_SESSION\s0\fR.
159 Do not explicitly free these indirectly freed up items before or after
160 calling \fISSL_free()\fR, as trying to free things twice may lead to program
161 failure.
162 .PP
163 The ssl session has reference counts from two users: the \s-1SSL\s0 object, for
164 which the reference count is removed by \fISSL_free()\fR and the internal
165 session cache. If the session is considered bad, because
166 \&\fISSL_shutdown\fR\|(3) was not called for the connection
167 and \fISSL_set_shutdown\fR\|(3) was not used to set the
168 \&\s-1SSL_SENT_SHUTDOWN\s0 state, the session will also be removed
169 from the session cache as required by \s-1RFC2246\s0.
170 .SH "RETURN VALUES"
171 .IX Header "RETURN VALUES"
172 \&\fISSL_free()\fR does not provide diagnostic information.
173 .PP
174 \&\fISSL_new\fR\|(3), \fISSL_clear\fR\|(3),
175 \&\fISSL_shutdown\fR\|(3), \fISSL_set_shutdown\fR\|(3),
176 \&\fIssl\fR\|(3)