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1 .\" $NetBSD: libcrypto.pl,v 1.3 2007/11/27 22:16:03 christos Exp $
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134 .\" ========================================================================
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136 .IX Title "SSL_CTX_free 3"
137 .TH SSL_CTX_free 3 "2003-03-28" "1.1.0-dev" "OpenSSL"
138 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
139 .\" way too many mistakes in technical documents.
140 .if n .ad l
141 .nh
142 .SH "NAME"
143 SSL_CTX_free \- free an allocated SSL_CTX object
144 .SH "LIBRARY"
145 libcrypto, -lcrypto
146 .SH "SYNOPSIS"
147 .IX Header "SYNOPSIS"
148 .Vb 1
149 \& #include <openssl/ssl.h>
150 \&
151 \& void SSL_CTX_free(SSL_CTX *ctx);
152 .Ve
153 .SH "DESCRIPTION"
154 .IX Header "DESCRIPTION"
155 \&\fISSL_CTX_free()\fR decrements the reference count of \fBctx\fR, and removes the
156 \&\s-1SSL_CTX\s0 object pointed to by \fBctx\fR and frees up the allocated memory if the
157 the reference count has reached 0.
158 .PP
159 It also calls the \fIfree()\fRing procedures for indirectly affected items, if
160 applicable: the session cache, the list of ciphers, the list of Client CAs,
161 the certificates and keys.
162 .SH "WARNINGS"
163 .IX Header "WARNINGS"
164 If a session-remove callback is set (\fISSL_CTX_sess_set_remove_cb()\fR), this
165 callback will be called for each session being freed from \fBctx\fR's
166 session cache. This implies, that all corresponding sessions from an
167 external session cache are removed as well. If this is not desired, the user
168 should explicitly unset the callback by calling
169 SSL_CTX_sess_set_remove_cb(\fBctx\fR, \s-1NULL\s0) prior to calling \fISSL_CTX_free()\fR.
170 .SH "RETURN VALUES"
171 .IX Header "RETURN VALUES"
172 \&\fISSL_CTX_free()\fR does not provide diagnostic information.
173 .SH "SEE ALSO"
174 .IX Header "SEE ALSO"
175 \&\fISSL_CTX_new\fR\|(3), \fIssl\fR\|(3),
176 \&\fISSL_CTX_sess_set_get_cb\fR\|(3)