SSL_SESSION_REUSED(3)      Library Functions Manual      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.

     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 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_ctrl(3), SSL_CTX_set_session_cache_mode(3),
     SSL_set_session(3)

HISTORY
     SSL_session_reused() first appeared in SSLeay 0.8.0 and has been
     available since OpenBSD 2.4.

Linux 6.8.7-arch1-1              June 12, 2019             Linux 6.8.7-arch1-1