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)