iOS Manual Pages

This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.

For more information about the manual page format, see the manual page for manpages(5).

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 connection. 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 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 connection. 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), SSL_CTX_set_client_cert_cb(3)



0.9.7l                            2002-02-27                      SSL_clear(3)