Upgrade to OpenSSL 0.9.8h.
[dragonfly.git] / secure / lib / libssl / man / SSL_CTX_set_timeout.3
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129.\" ========================================================================
130.\"
131.IX Title "SSL_CTX_set_timeout 3"
aac4ff6f 132.TH SSL_CTX_set_timeout 3 "2008-09-06" "0.9.8h" "OpenSSL"
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133.SH "NAME"
134SSL_CTX_set_timeout, SSL_CTX_get_timeout \- manipulate timeout values for session caching
135.SH "SYNOPSIS"
e056f0e0 136.IX Header "SYNOPSIS"
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137.Vb 1
138\& #include <openssl/ssl.h>
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139.Ve
140.PP
141.Vb 2
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142\& long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
143\& long SSL_CTX_get_timeout(SSL_CTX *ctx);
144.Ve
145.SH "DESCRIPTION"
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146.IX Header "DESCRIPTION"
147\&\fISSL_CTX_set_timeout()\fR sets the timeout for newly created sessions for
148\&\fBctx\fR to \fBt\fR. The timeout value \fBt\fR must be given in seconds.
984263bc 149.PP
e056f0e0 150\&\fISSL_CTX_get_timeout()\fR returns the currently set timeout value for \fBctx\fR.
984263bc 151.SH "NOTES"
e056f0e0 152.IX Header "NOTES"
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153Whenever a new session is created, it is assigned a maximum lifetime. This
154lifetime is specified by storing the creation time of the session and the
155timeout value valid at this time. If the actual time is later than creation
156time plus timeout, the session is not reused.
157.PP
158Due to this realization, all sessions behave according to the timeout value
159valid at the time of the session negotiation. Changes of the timeout value
160do not affect already established sessions.
161.PP
162The expiration time of a single session can be modified using the
e056f0e0 163\&\fISSL_SESSION_get_time\fR\|(3) family of functions.
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164.PP
165Expired sessions are removed from the internal session cache, whenever
e056f0e0 166\&\fISSL_CTX_flush_sessions\fR\|(3) is called, either
984263bc 167directly by the application or automatically (see
e056f0e0 168\&\fISSL_CTX_set_session_cache_mode\fR\|(3))
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169.PP
170The default value for session timeout is decided on a per protocol
e056f0e0 171basis, see \fISSL_get_default_timeout\fR\|(3).
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172All currently supported protocols have the same default timeout value
173of 300 seconds.
174.SH "RETURN VALUES"
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175.IX Header "RETURN VALUES"
176\&\fISSL_CTX_set_timeout()\fR returns the previously set timeout value.
984263bc 177.PP
e056f0e0 178\&\fISSL_CTX_get_timeout()\fR returns the currently set timeout value.
984263bc 179.SH "SEE ALSO"
a7d27d5a 180.IX Header "SEE ALSO"
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181\&\fIssl\fR\|(3),
182\&\fISSL_CTX_set_session_cache_mode\fR\|(3),
183\&\fISSL_SESSION_get_time\fR\|(3),
184\&\fISSL_CTX_flush_sessions\fR\|(3),
185\&\fISSL_get_default_timeout\fR\|(3)