Manual Pages for UNIX Operating System command usage for man SSL_get_session

OpenSSL                                 SSL_get_session(3openssl)



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     SSL_get_session - retrieve TLS/SSL session data

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      #include 

      SSL_SESSION *SSL_get_session(const SSL *ssl);
      SSL_SESSION *SSL_get0_session(const SSL *ssl);
      SSL_SESSION *SSL_get1_session(SSL *ssl);


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     SSL_get_session() returns a pointer to the SSSSSSSSLLLL_SSSSEEEESSSSSSSSIIIIOOOONNNN
     actually used in ssssssssllll. The reference count of the SSSSSSSSLLLL_SSSSEEEESSSSSSSSIIIIOOOONNNN
     is not incremented, so that the pointer can become invalid
     by other operations.

     SSL_get0_session() is the same as SSL_get_session().

     SSL_get1_session() is the same as SSL_get_session(), but the
     reference count of the SSSSSSSSLLLL_SSSSEEEESSSSSSSSIIIIOOOONNNN is incremented by one.

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     The ssl session contains all information required to re-
     establish the connection without a new handshake.

     SSL_get0_session() returns a pointer to the actual session.
     As the reference counter is not incremented, the pointer is
     only valid while the connection is in use. If SSL_clear(3)
     or SSL_free(3) is called, the session may be removed
     completely (if considered bad), and the pointer obtained
     will become invalid. Even if the session is valid, it can be
     removed at any time due to timeout during
     SSL_CTX_flush_sessions(3).

     If the data is to be kept, SSL_get1_session() will increment
     the reference count, so that the session will not be
     implicitly removed by other operations but stays in memory.
     In order to remove the session SSL_SESSION_free(3) must be
     explicitly called once to decrement the reference count
     again.

     SSL_SESSION objects keep internal link information about the
     session cache list, when being inserted into one SSL_CTX
     object's session cache.  One SSL_SESSION object, regardless
     of its reference count, must therefore only be used with one
     SSL_CTX object (and the SSL objects created from this
     SSL_CTX object).

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     The following return values can occur:




30/Mar/2005            Last change: 0.9.8o                      1






OpenSSL                                 SSL_get_session(3openssl)



     NULL
         There is no session available in ssssssssllll.

     Pointer to an SSL
         The return value points to the data of an SSL session.

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     ssl(3), SSL_free(3), SSL_clear(3), SSL_SESSION_free(3)















































30/Mar/2005            Last change: 0.9.8o                      2