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+.\" Automatically generated by Pod::Man version 1.15
+.\" Thu May 9 13:22:05 2002
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+.\" ======================================================================
+.\"
+.IX Title "SSL_SET_SHUTDOWN 1"
+.TH SSL_SET_SHUTDOWN 1 "perl v5.6.1" "2002-01-27" "User Contributed Perl Documentation"
+.UC
+.SH "NAME"
+SSL_set_shutdown, SSL_get_shutdown \- manipulate shutdown state of an \s-1SSL\s0 connection
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/ssl.h>
+.Ve
+.Vb 1
+\& void SSL_set_shutdown(SSL *ssl, int mode);
+.Ve
+.Vb 1
+\& int SSL_get_shutdown(SSL *ssl);
+.Ve
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+\&\fISSL_set_shutdown()\fR sets the shutdown state of \fBssl\fR to \fBmode\fR.
+.PP
+\&\fISSL_get_shutdown()\fR returns the shutdown mode of \fBssl\fR.
+.SH "NOTES"
+.IX Header "NOTES"
+The shutdown state of an ssl connection is a bitmask of:
+.Ip "0" 4
+No shutdown setting, yet.
+.Ip "\s-1SSL_SENT_SHUTDOWN\s0" 4
+.IX Item "SSL_SENT_SHUTDOWN"
+A \*(L"close notify\*(R" shutdown alert was sent to the peer, the connection is being
+considered closed and the session is closed and correct.
+.Ip "\s-1SSL_RECEIVED_SHUTDOWN\s0" 4
+.IX Item "SSL_RECEIVED_SHUTDOWN"
+A shutdown alert was received form the peer, either a normal \*(L"close notify\*(R"
+or a fatal error.
+.PP
+\&\s-1SSL_SENT_SHUTDOWN\s0 and \s-1SSL_RECEIVED_SHUTDOWN\s0 can be set at the same time.
+.PP
+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(3) or SSL_free(3) is called,
+it is considered bad and removed according to \s-1RFC2246\s0.
+The actual condition for a correctly closed session is \s-1SSL_SENT_SHUTDOWN\s0
+(according to the \s-1TLS\s0 \s-1RFC\s0, it is acceptable to only send the \*(L"close notify\*(R"
+alert but to not wait for the peer's answer, when the underlying connection
+is closed).
+\&\fISSL_set_shutdown()\fR can be used to set this state without sending a
+close alert to the peer (see SSL_shutdown(3)).
+.PP
+If a \*(L"close notify\*(R" was received, \s-1SSL_RECEIVED_SHUTDOWN\s0 will be set,
+for setting \s-1SSL_SENT_SHUTDOWN\s0 the application must however still call
+SSL_shutdown(3) or \fISSL_set_shutdown()\fR itself.
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fISSL_set_shutdown()\fR does not return diagnostic information.
+.PP
+\&\fISSL_get_shutdown()\fR returns the current setting.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+ssl(3), SSL_shutdown(3),
+SSL_CTX_set_quiet_shutdown(3),
+SSL_clear(3), SSL_free(3)
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