SSL_clear(3) - NetBSD Manual Pages

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SSL_clear(3)                 OpenSSL                 SSL_clear(3)



NAME

       SSL_clear - reset SSL object to allow another connection


LIBRARY

       libcrypto, -lcrypto


SYNOPSIS

        #include <openssl/ssl.h>

        int SSL_clear(SSL *ssl);



DESCRIPTION

       Reset ssl to allow another connection. All settings
       (method, ciphers, BIOs) are kept.


NOTES

       SSL_clear is used to prepare an SSL object for a new con-
       nection. While all settings are kept, a side effect is the
       handling of the current SSL session.  If a session is
       still open, it is considered bad and will be removed from
       the session cache, as required by RFC2246. A session is
       considered open, if SSL_shutdown(3) was not called for the
       connection or at least SSL_set_shutdown(3) was used to set
       the SSL_SENT_SHUTDOWN state.

       If a session was closed cleanly, the session object will
       be kept and all settings corresponding. This explicitly
       means, that e.g. the special method used during the ses-
       sion will be kept for the next handshake. So if the ses-
       sion was a TLSv1 session, a SSL client object will use a
       TLSv1 client method for the next handshake and a SSL
       server object will use a TLSv1 server method, even if
       SSLv23_*_methods were chosen on startup. This will might
       lead to connection failures (see SSL_new(3)) for a
       description of the method's properties.


WARNINGS

       SSL_clear() resets the SSL object to allow for another
       connection. The reset operation however keeps several set-
       tings of the last sessions (some of these settings were
       made automatically during the last handshake). It only
       makes sense when opening a new session (or reusing an old
       one) with the same peer that shares these settings.
       SSL_clear() is not a short form for the sequence
       SSL_free(3); SSL_new(3); .


RETURN VALUES

       The following return values can occur:

       0   The SSL_clear() operation could not be performed.
           Check the error stack to find out the reason.





2002-06-10                    0.9.6g                            1





SSL_clear(3)                 OpenSSL                 SSL_clear(3)


       1   The SSL_clear() operation was successful.

       SSL_new(3), SSL_free(3), SSL_shutdown(3), SSL_set_shutdown(3)
       , SSL_CTX_set_options(3), ssl(3),
       SSL_CTX_set_client_cert_cb(3)




















































2002-06-10                    0.9.6g                            2