SSLgetsession(3) OpenSSL SSLgetsession(3)

NAME
       SSLgetsession - retrieve TLS/SSL session data

SYNOPSIS
        #include 

        SSLSESSION *SSLgetsession(const SSL *ssl);
        SSLSESSION *SSLget0session(const SSL *ssl);
        SSLSESSION *SSLget1session(SSL *ssl);

DESCRIPTION
       SSLgetsession() returns a pointer to the SSSSLLSSEESSSSIIOONN actually used in
       ssssll. The reference count of the SSSSLLSSEESSSSIIOONN is not incremented, so that
       the pointer can become invalid by other operations.

       SSLget0session() is the same as SSLgetsession().

       SSLget1session() is the same as SSLgetsession(), but the reference
       count of the SSSSLLSSEESSSSIIOONN is incremented by one.

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

       SSLget0session() 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 SSLclear(3) or SSLfree(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 SSLCTXflushsessions(3).

       If the data is to be kept, SSLget1session() 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
       SSLSESSIONfree(3) must be explicitly called once to decrement the
       reference count again.

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

RETURN VALUES
       The following return values can occur:

       NULL
           There is no session available in ssssll.

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

SEE ALSO
       ssl(3), SSLfree(3), SSLclear(3), SSLSESSIONfree(3)



0.9.7l                            2005-03-30                SSLgetsession(3)