SSL_CLEAR(3) OpenSSL SSL_CLEAR(3)NAMESSL_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.
NOTESSSL_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.
WARNINGSSSL_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 2005-02-05 1
SSL_CLEAR(3) OpenSSL SSL_CLEAR(3)SSL_CTX_set_client_cert_cb(3)MirOS BSD #10-current 2005-02-05 2
