NAME    [Toc]    [Back]

       SSL_CTX_set_timeout, SSL_CTX_get_timeout - manipulate
       timeout values for session caching

LIBRARY    [Toc]    [Back]

       libcrypto, -lcrypto

SYNOPSIS    [Toc]    [Back]

        #include <openssl/ssl.h>

        long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
        long SSL_CTX_get_timeout(SSL_CTX *ctx);

DESCRIPTION    [Toc]    [Back]

       SSL_CTX_set_timeout() sets the timeout for newly created
       sessions for ctx to t. The timeout value t must be given
       in seconds.

       SSL_CTX_get_timeout() returns the currently set timeout
       value for ctx.

NOTES    [Toc]    [Back]

       Whenever a new session is created, it is assigned a maximum
 lifetime. This lifetime is specified by storing the
       creation time of the session and the timeout value valid
       at this time. If the actual time is later than creation
       time plus timeout, the session is not reused.

       Due to this realization, all sessions behave according to
       the timeout value valid at the time of the session negotiation.
 Changes of the timeout value do not affect already
       established sessions.

       The expiration time of a single session can be modified
       using the SSL_SESSION_get_time(3) family of functions.

       Expired sessions are removed from the internal session
       cache, whenever SSL_CTX_flush_sessions(3) is called,
       either directly by the application or automatically (see
       SSL_CTX_set_session_cache_mode(3))

       The default value for session timeout is decided on a per
       protocol basis, see SSL_get_default_timeout(3).  All currently
 supported protocols have the same default timeout
       value of 300 seconds.

RETURN VALUES    [Toc]    [Back]

       SSL_CTX_set_timeout() returns the previously set timeout
       value.

       SSL_CTX_get_timeout() returns the currently set timeout
       value.

SEE ALSO    [Toc]    [Back]

       ssl(3), SSL_CTX_set_session_cache_mode(3), SSL_SESSION_get_time(3), SSL_CTX_flush_sessions(3),
       SSL_get_default_timeout(3)



2002-06-10                    0.9.6g       SSL_CTX_set_timeout(3)