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sasl_client_step(10 July 2001)					   sasl_client_step(10 July 2001)

       sasl_client_step - Perform a step in the authentication negotiation

       #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);

       sasl_client_step()  performs  a step in the authentication negotiation. It returns SASL_OK
       if the whole negotiation is sucessful 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
       sucessful 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 applica-

       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 proto-
       cal specific encoding (such as base64 encoding) necessary needs to be done by the client.

       sasl_client_step  returns  an  integer  which  corresponds  to one of the following codes.
       SASL_CONTINUE indicates sucess 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.

       RFC 2222

       sasl(3),  sasl_callbacks(3),  sasl_errors(3),   sasl_client_init(3),   sasl_client_new(3),

SASL man pages				       SASL		   sasl_client_step(10 July 2001)
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