This commit was manufactured by cvs2svn to create branch

'OpenSSL_0_9_6-stable'.
This commit is contained in:
cvs2svn 2001-02-13 11:43:12 +00:00
commit 166850e315

View file

@ -0,0 +1,78 @@
=pod
=head1 NAME
SSL_CTX_set_mode, SSL_set_mode, SSL_CTX_get_mode, SSL_get_mode - manipulate SSL engine mode
=head1 SYNOPSIS
#include <openssl/ssl.h>
long SSL_CTX_set_mode(SSL_CTX *ctx, long mode);
long SSL_set_mode(SSL *ssl, long mode);
long SSL_CTX_get_mode(SSL_CTX *ctx);
long SSL_get_mode(SSL *ssl);
=head1 DESCRIPTION
SSL_CTX_set_mode() adds the mode set via bitmask in B<mode> to B<ctx>.
Options already set before are not cleared.
SSL_set_mode() adds the mode set via bitmask in B<mode> to B<ssl>.
Options already set before are not cleared.
SSL_CTX_get_mode() returns the mode set for B<ctx>.
SSL_get_mode() returns the mode set for B<ssl>.
=head1 NOTES
The following mode changes are available:
=over 4
=item SSL_MODE_ENABLE_PARTIAL_WRITE
Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
when just a single record has been written). When not set (the default),
SSL_write() will only report success once the complete chunk was written.
=item SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER
Make it possible to retry SSL_write() with changed buffer location
(the buffer contents must stay the same). This is not the default to avoid
the misconception that non-blocking SSL_write() behaves like
non-blocking write().
=item SSL_MODE_AUTO_RETRY
Never bother the application with retries if the transport is blocking.
If a renegotiation take place during normal operation, a
L<SSL_read(3)|SSL_read(3)> or L<SSL_write(3)|SSL_write(3)> would return
with -1 and indicate the need to retry with SSL_ERROR_WANT_READ.
In a non-blocking environment applications must be prepared to handle
incomplete read/write operations.
In a blocking environment, applications are not always prepared to
deal with read/write operations returning without success report. The
flag SSL_MODE_AUTO_RETRY will cause read/write operations to only
return after the handshake and successful completion.
=back
=head1 RETURN VALUES
SSL_CTX_set_mode() and SSL_set_mode() return the new mode bitmask
after adding B<mode>.
SSL_CTX_get_mode() and SSL_get_mode() return the current bitmask.
=head1 SEE ALSO
L<ssl(3)|ssl(3)>, L<SSL_read(3)|SSL_read(3)>, L<SSL_write(3)|SSL_write(3)>
=head1 HISTORY
SSL_MODE_AUTO_RETRY as been added in OpenSSL 0.9.6.
=cut