X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Fdoc%2Fssl%2FSSL_set_shutdown.pod;fp=lib%2Fopenssl%2Fdoc%2Fssl%2FSSL_set_shutdown.pod;h=fe013085d39d21bf0766d5c661de778e3118ac8f;hb=9ff1530871deeb0f7eaa35ca0db6630724045e4a;hp=0000000000000000000000000000000000000000;hpb=25b73076b01ae059da1a2e9a1677e00788ada620;p=cassiopeia.git diff --git a/lib/openssl/doc/ssl/SSL_set_shutdown.pod b/lib/openssl/doc/ssl/SSL_set_shutdown.pod new file mode 100644 index 0000000..fe01308 --- /dev/null +++ b/lib/openssl/doc/ssl/SSL_set_shutdown.pod @@ -0,0 +1,72 @@ +=pod + +=head1 NAME + +SSL_set_shutdown, SSL_get_shutdown - manipulate shutdown state of an SSL connection + +=head1 SYNOPSIS + + #include + + void SSL_set_shutdown(SSL *ssl, int mode); + + int SSL_get_shutdown(const SSL *ssl); + +=head1 DESCRIPTION + +SSL_set_shutdown() sets the shutdown state of B to B. + +SSL_get_shutdown() returns the shutdown mode of B. + +=head1 NOTES + +The shutdown state of an ssl connection is a bitmask of: + +=over 4 + +=item Z<>0 + +No shutdown setting, yet. + +=item SSL_SENT_SHUTDOWN + +A "close notify" shutdown alert was sent to the peer, the connection is being +considered closed and the session is closed and correct. + +=item SSL_RECEIVED_SHUTDOWN + +A shutdown alert was received form the peer, either a normal "close notify" +or a fatal error. + +=back + +SSL_SENT_SHUTDOWN and SSL_RECEIVED_SHUTDOWN can be set at the same time. + +The shutdown state of the connection is used to determine the state of +the ssl session. If the session is still open, when +L or L is called, +it is considered bad and removed according to RFC2246. +The actual condition for a correctly closed session is SSL_SENT_SHUTDOWN +(according to the TLS RFC, it is acceptable to only send the "close notify" +alert but to not wait for the peer's answer, when the underlying connection +is closed). +SSL_set_shutdown() can be used to set this state without sending a +close alert to the peer (see L). + +If a "close notify" was received, SSL_RECEIVED_SHUTDOWN will be set, +for setting SSL_SENT_SHUTDOWN the application must however still call +L or SSL_set_shutdown() itself. + +=head1 RETURN VALUES + +SSL_set_shutdown() does not return diagnostic information. + +SSL_get_shutdown() returns the current setting. + +=head1 SEE ALSO + +L, L, +L, +L, L + +=cut