/usr/man/cat.3/SSL_set_quiet_shutdown.3(/usr/man/cat.3/SSL_set_quiet_shutdown.3)

SSL_CTX_set_quiet_shutdown(3)OpenSSLSSL_CTX_set_quiet_shutdown(3)

NAME

     SSL_CTX_set_quiet_shutdown, SSL_CTX_get_quiet_shutdown,
     SSL_set_quiet_shutdown, SSL_get_quiet_shutdown - manipulate
     shutdown behaviour

SYNOPSIS

      #include <openssl/ssl.h>

      void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
      int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);

      void SSL_set_quiet_shutdown(SSL *ssl, int mode);
      int SSL_get_quiet_shutdown(const SSL *ssl);

DESCRIPTION

     SSL_CTX_set_quiet_shutdown() sets the "quiet shutdown" flag
     for ctx to be mode. SSL objects created from ctx inherit the
     mode valid at the time SSL_new(3) is called. mode may be 0
     or 1.

     SSL_CTX_get_quiet_shutdown() returns the "quiet shutdown"
     setting of ctx.

     SSL_set_quiet_shutdown() sets the "quiet shutdown" flag for
     ssl to be mode. The setting stays valid until ssl is removed
     with SSL_free(3) or SSL_set_quiet_shutdown() is called
     again.  It is not changed when SSL_clear(3) is called.  mode
     may be 0 or 1.

     SSL_get_quiet_shutdown() returns the "quiet shutdown"
     setting of ssl.

NOTES

     Normally when a SSL connection is finished, the parties must
     send out "close notify" alert messages using SSL_shutdown(3)
     for a clean shutdown.

     When setting the "quiet shutdown" flag to 1, SSL_shutdown(3)
     will set the internal flags to
     SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.  (SSL_shutdown(3)
     then behaves like SSL_set_shutdown(3) called with
     SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.)  The session is
     thus considered to be shutdown, but no "close notify" alert
     is sent to the peer. This behaviour violates the TLS
     standard.

     The default is normal shutdown behaviour as described by the
     TLS standard.

RETURN VALUES

     SSL_CTX_set_quiet_shutdown() and SSL_set_quiet_shutdown() do
     not return diagnostic information.

1.0.2t               Last change: 2019-09-10                    1

SSL_CTX_set_quiet_shutdown(3)OpenSSLSSL_CTX_set_quiet_shutdown(3)

     SSL_CTX_get_quiet_shutdown() and SSL_get_quiet_shutdown
     return the current setting.

SEE ALSO

     ssl(3), SSL_shutdown(3), SSL_set_shutdown(3), SSL_new(3),
     SSL_clear(3), SSL_free(3)

1.0.2t               Last change: 2019-09-10                    2

See also SSL_CTX_get_quiet_shutdown(3)
See also SSL_CTX_set_quiet_shutdown(3)
See also SSL_get_quiet_shutdown(3)