-*- nroff -*-
Copyright (c) 2001 Carnegie Mellon University. All rights reserved.
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notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
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endorse or promote products derived from this software without
prior written permission. For permission or any other legal
details, please contact
Office of Technology Transfer
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213-3890
(412) 268-4387, fax: (412) 268-7395
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4. Redistributions of any form whatsoever must retain the following
acknowledgment:
"This product includes software developed by Computing Services
at Carnegie Mellon University (http://www.cmu.edu/computing/)."
CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Copyright (c) 2001 Carnegie Mellon University. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. The name "Carnegie Mellon University" must not be used to
endorse or promote products derived from this software without
prior written permission. For permission or any other legal
details, please contact
Office of Technology Transfer
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213-3890
(412) 268-4387, fax: (412) 268-7395
tech-transfer@andrew.cmu.edu
4. Redistributions of any form whatsoever must retain the following
acknowledgment:
"This product includes software developed by Computing Services
at Carnegie Mellon University (http://www.cmu.edu/computing/)."
CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
sasl_client_step 3 "10 July 2001" SASL "SASL man pages"
NAME
sasl_client_step - Perform a step in the authentication negotiation
SYNOPSIS
#include <sasl/sasl.h> "int sasl_client_step(sasl_conn_t " *conn ", " " const char " *serverin ", " " unsigned " serverinlen ", " " sasl_interact_t ** " prompt_need ", " " const char ** " clientout ", " " unsigned * " clientoutlen ");"
DESCRIPTION
sasl_client_step() performs a step in the authentication negotiation. It returns SASL_OK
if the whole negotiation is successful and SASL_CONTINUE if this step
is ok but at least one more step is needed. A client should not assume
an authentication negotiation is successful just because the server
signaled success via protocol (i.e. if the server said ". OK
Authentication succeeded" in IMAP sasl_client_step should still be
called one more time with a serverinlen of zero.
If SASL_INTERACT is returned the library needs some values to be
filled in before it can proceed. The prompt_need structure will be
filled in with requests. The application should fulfill these requests
and call sasl_client_start again with identical parameters (the
prompt_need parameter will be the same pointer as before but filled in
by the application).
conn is the SASL connection context
serverin is the data given by the server (decoded if the protocol encodes requests sent over the wire)
serverinlen is the length of serverin
clientout and clientoutlen is created. It is the initial client response to send to the server. It is the job of the client to send it over the network to the server. Any protocol specific encoding (such as base64 encoding) necessary needs to be done by the client.
"RETURN VALUE"
sasl_client_step returns an integer which corresponds to one of the
following codes. SASL_CONTINUE indicates success and that there are
more steps needed in the authentication. SASL_OK indicates that the
authentication is complete. All other return codes indicate errors and
should either be handled or the authentication session should be quit.
"CONFORMING TO"
RFC 4422
"SEE ALSO"
sasl(3), sasl_callbacks(3), sasl_errors(3), sasl_client_init(3), sasl_client_new(3), sasl_client_start(3)