MirOS Manual: SSL_clear(3)


SSL_CLEAR(3)                 OpenSSL                 SSL_CLEAR(3)

NAME

     SSL_clear - reset SSL object to allow another connection

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 connec-
     tion. While all settings are kept, a side effect is the han-
     dling of the current SSL session. If a session is still
     open, it is considered bad and will be removed from the ses-
     sion 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 session will be
     kept for the next handshake. So if the session 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 con-
     nection. The reset operation however keeps several settings
     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.

     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),

MirOS BSD #10-current      2016-10-06                           1

SSL_CLEAR(3)                 OpenSSL                 SSL_CLEAR(3)

     SSL_CTX_set_client_cert_cb(3)

MirOS BSD #10-current      2016-10-06                           2

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