sasl_server_start

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sasl_server_start(10 July 2001)		      sasl_server_start(10 July 2001)



NAME
       sasl_server_start - Begin an authentication negotiation



SYNOPSIS
       #include <sasl/sasl.h>

       int sasl_server_start(sasl_conn_t * conn,
			    const char * mech,
			    const char * clientin,
			    unsigned * clientinlen,
			    const char ** serverout,
			    unsigned * serveroutlen);

DESCRIPTION
       sasl_server_start() begins the authentication with the mechanism spec-
       ified with mech. This fails if the mechanism is not supported. SASL_OK
       is  returned if the authentication is complete and the user is authen-
       ticated. SASL_CONTINUE is returned if one  or  more  steps  are	still
       required in the authentication. All other return values indicate fail-
       ure.


       conn is the SASL context for this connection

       mech is the mechanism name that the client requested

       clientin is the client initial response, NULL if	 the  protocol	lacks
       support for client-send-first or if the other end did not have an ini-
       tial send.  Note that no initial client send is distinct from an	 ini-
       tial  send  of  a  null string, and the protocol MUST account for this
       difference.


       clientinlen is the length of initial response

       serverout is created by the plugin library. It is the  initial  server
       response to send to the client. This is allocated/freed by the library
       and it is the job of the client to send it over	the  network  to  the
       server. Also protocal specific encoding (such as base64 encoding) must
       needs to be done by the server.

       serveroutlen is set to the length of initial server challenge





RETURN VALUE
       sasl_server_start returns an integer which corresponds to one  of  the
       SASL  errorcodes.  SASL_OK  indicates that authentication is completed
       successfully. SASL_CONTINUE indicates sucess and that there  are	 more
       steps  needed  in  the authentication. All other return codes indicate
       errors and should either be  handled  or	 the  authentication  session
       should be quit.


CONFORMING TO
       RFC 2222

SEE ALSO
       sasl(3),	  sasl_errors(3),   sasl_server_init(3),  sasl_server_new(3),
       sasl_server_step(3)



SASL man pages			     SASL     sasl_server_start(10 July 2001)