SSL_session_reused(3)

     NAME
          SSL_session_reused - query whether a reused session was
          negotiated during handshake

     SYNOPSIS
           #include <openssl/ssl.h>

           int SSL_session_reused(SSL *ssl);


     DESCRIPTION
          Query, whether a reused session was negotiated during the
          handshake.

     NOTES
          During the negotiation, a client can propose to reuse a
          session. The server then looks up the session in its cache.
          If both client and server agree on the session, it will be
          reused and a flag is being set that can be queried by the
          application.

     RETURN VALUES
          The following return values can occur:

          0   A new session was negotiated.

          1   A session was reused.

     SEE ALSO
          ssl(3), SSL_set_session(3),
          SSL_CTX_set_session_cache_mode(3)