07-30-2001
The first step is to set up a sniffer and to look at what is happening across the network during the client-server transaction. After you do this, the problem area should be clear and the solution much easier.
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LEARN ABOUT DEBIAN
sasl_client_step
sasl_client_step(3) SASL man pages sasl_client_step(3)
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 success-
ful 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)
SASL
10 July 2001 sasl_client_step(3)