DOKK / manpages / debian 10 / libsasl2-dev / sasl_server_step.3.en
SASL_SERVER_STEP(3) Cyrus SASL SASL_SERVER_STEP(3)

sasl_server_step - Cyrus SASL documentation

#include <sasl/sasl.h>
int sasl_server_step(sasl_conn_t *conn,


    const char *clientin,


    unsigned clientinlen,


    const char ** serverout,


    unsigned * serveroutlen);

sasl_server_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.
  • conn – is the SASL connection context
  • clientin – is the data given by the client (decoded if the protocol encodes requests sent over the wire)
  • clientinlen – is the length of clientin
  • serverout – set by the library and should be sent to the client.
  • serveroutlen – length of serverout.



SASL callback functions should return SASL return codes. See sasl.h for a complete list. SASL_CONTINUE indicates success and that there are more steps needed in the authentication. SASL_OK indicates that the authentication is complete.

Other return codes indicate errors and should either be handled or the authentication session should be quit.

RFC 4422,:saslman:sasl(3), sasl_server_init(3), sasl_server_new(3), sasl_server_start(3), sasl_errors(3)

The Cyrus Team

1993-2022, The Cyrus Team

February 25, 2022 2.1.27