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135 .\" ========================================================================
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137 .IX Title "SSL_free 3"
138 .TH SSL_free 3 "2009-07-19" "1.0.1n" "OpenSSL"
139 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
140 .\" way too many mistakes in technical documents.
141 .if n .ad l
142 .nh
143 .SH "NAME"
144 SSL_free \- free an allocated SSL structure
145 .SH "LIBRARY"
146 libcrypto, -lcrypto
147 .SH "SYNOPSIS"
148 .IX Header "SYNOPSIS"
149 .Vb 1
150 \& #include <openssl/ssl.h>
151 \&
152 \& void SSL_free(SSL *ssl);
153 .Ve
154 .SH "DESCRIPTION"
155 .IX Header "DESCRIPTION"
156 \&\fISSL_free()\fR decrements the reference count of \fBssl\fR, and removes the \s-1SSL\s0
157 structure pointed to by \fBssl\fR and frees up the allocated memory if the
158 reference count has reached 0.
159 .SH "NOTES"
160 .IX Header "NOTES"
161 \&\fISSL_free()\fR also calls the \fIfree()\fRing procedures for indirectly affected items, if
162 applicable: the buffering \s-1BIO,\s0 the read and write BIOs,
163 cipher lists specially created for this \fBssl\fR, the \fB\s-1SSL_SESSION\s0\fR.
164 Do not explicitly free these indirectly freed up items before or after
165 calling \fISSL_free()\fR, as trying to free things twice may lead to program
166 failure.
167 .PP
168 The ssl session has reference counts from two users: the \s-1SSL\s0 object, for
169 which the reference count is removed by \fISSL_free()\fR and the internal
170 session cache. If the session is considered bad, because
171 \&\fISSL_shutdown\fR\|(3) was not called for the connection
172 and \fISSL_set_shutdown\fR\|(3) was not used to set the
173 \&\s-1SSL_SENT_SHUTDOWN\s0 state, the session will also be removed
174 from the session cache as required by \s-1RFC2246.\s0
175 .SH "RETURN VALUES"
176 .IX Header "RETURN VALUES"
177 \&\fISSL_free()\fR does not provide diagnostic information.
178 .PP
179 \&\fISSL_new\fR\|(3), \fISSL_clear\fR\|(3),
180 \&\fISSL_shutdown\fR\|(3), \fISSL_set_shutdown\fR\|(3),
181 \&\fIssl\fR\|(3)