Section: OpenSSL (3)
SSL_session_reused - query whether a reused session was negotiated during handshake
int SSL_session_reused(const SSL *ssl);
Query, whether a reused session was negotiated during the handshake.
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.
The following return values can occur:
A new session was negotiated.
A session was reused.
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