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# Conflicts:
#	README.md
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Zhi Guan
2017-02-14 16:12:29 +08:00
parent d2254170b8
commit 43fed1108d
3503 changed files with 320546 additions and 408546 deletions
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57
doc/ssl/SSL_get_error.pod
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@@ -38,12 +38,13 @@ if and only if B<ret E<gt> 0>.
=item SSL_ERROR_ZERO_RETURN
The TLS/SSL connection has been closed. If the protocol version is SSL 3.0
or TLS 1.0, this result code is returned only if a closure
alert has occurred in the protocol, i.e. if the connection has been
closed cleanly. Note that in this case B<SSL_ERROR_ZERO_RETURN>
does not necessarily indicate that the underlying transport
has been closed.
The TLS/SSL connection has been closed.
If the protocol version is SSL 3.0 or higher, this result code is returned only
if a closure alert has occurred in the protocol, i.e. if the connection has been
closed cleanly.
Note that in this case B<SSL_ERROR_ZERO_RETURN> does not necessarily
indicate that the underlying transport has been closed.
=item SSL_ERROR_WANT_READ, SSL_ERROR_WANT_WRITE
@@ -87,14 +88,33 @@ SSL_CTX_set_client_cert_cb() has asked to be called again.
The TLS/SSL I/O function should be called again later.
Details depend on the application.
=item SSL_ERROR_WANT_ASYNC
The operation did not complete because an asynchronous engine is still
processing data. This will only occur if the mode has been set to SSL_MODE_ASYNC
using L<SSL_CTX_set_mode(3)> or L<SSL_set_mode(3)> and an asynchronous capable
engine is being used. An application can determine whether the engine has
completed its processing using select() or poll() on the asynchronous wait file
descriptor. This file descriptor is available by calling
L<SSL_get_all_async_fds(3)> or L<SSL_get_changed_async_fds(3)>. The TLS/SSL I/O
function should be called again later. The function B<must> be called from the
same thread that the original call was made from.
=item SSL_ERROR_WANT_ASYNC_JOB
The asynchronous job could not be started because there were no async jobs
available in the pool (see ASYNC_init_thread(3)). This will only occur if the
mode has been set to SSL_MODE_ASYNC using L<SSL_CTX_set_mode(3)> or
L<SSL_set_mode(3)> and a maximum limit has been set on the async job pool
through a call to L<ASYNC_init_thread(3)>. The application should retry the
operation after a currently executing asynchronous operation for the current
thread has completed.
=item SSL_ERROR_SYSCALL
Some I/O error occurred. The OpenSSL error queue may contain more
information on the error. If the error queue is empty
(i.e. ERR_get_error() returns 0), B<ret> can be used to find out more
about the error: If B<ret == 0>, an EOF was observed that violates
the protocol. If B<ret == -1>, the underlying B<BIO> reported an
I/O error (for socket I/O on Unix systems, consult B<errno> for details).
Some non-recoverable I/O error occurred.
The OpenSSL error queue may contain more information on the error.
For socket I/O on Unix systems, consult B<errno> for details.
=item SSL_ERROR_SSL
@@ -105,10 +125,19 @@ OpenSSL error queue contains more information on the error.
=head1 SEE ALSO
L<ssl(3)|ssl(3)>, L<err(3)|err(3)>
L<ssl(3)>, L<err(3)>
=head1 HISTORY
SSL_get_error() was added in SSLeay 0.8.
SSL_ERROR_WANT_ASYNC was added in OpenSSL 1.1.0.
=head1 COPYRIGHT
Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut