SSL_set_shutdown man page on DigitalUNIX

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SSL_set_shutdown(3)					   SSL_set_shutdown(3)

       SSL_set_shutdown,  SSL_get_shutdown  -  Manipulate shutdown state of an
       SSL connection

       #include <openssl/ssl.h>

       void SSL_set_shutdown(
	       SSL *ssl,
	       int mode ); int SSL_get_shutdown(
	       SSL *ssl );

       The SSL_set_shutdown() function sets the shutdown state of ssl to mode.

       The SSL_get_shutdown() function returns the shutdown mode of ssl.

       The shutdown state of an ssl connection is a bitmask  of:  No  shutdown
       setting,	 yet.  A close notify shutdown alert was sent to the peer, the
       connection is being considered closed and the  session  is  closed  and
       correct.	  A shutdown alert was received form the peer, either a normal
       close notify or a fatal error.

       SSL_SENT_SHUTDOWN and SSL_RECEIVED_SHUTDOWN can	be  set	 at  the  same

       The  shutdown state of the connection is used to determine the state of
       the ssl session. If the session	is  still  open	 when  SSL_clear()  or
       SSL_free()  is  called,	it  is considered bad and removed according to
       RFC2246. The  actual  condition	for  a	correctly  closed  session  is
       SSL_SENT_SHUTDOWN.  Acording  to	 the TLS RFC, it is acceptable to only
       send the "close notify" alert but not wait for the peer's answer,  when
       the underlying connection is closed.

       If  a close notify was received, SSL_RECEIVED_SHUTDOWN will be set. For
       setting SSL_SENT_SHUTDOWN, the application still	 must  call  SSL_shut‐
       down() or SSL_set_shutdown().

       The SSL_set_shutdown() function does not return diagnostic information.

       The SSL_get_shutdown() function returns the current setting.

       Functions:   ssl(3),   SSL_shutdown(3),	 SSL_CTX_set_quiet_shutdown(3)
       SSL_clear(3), SSL_free(3)


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