NAME
       sasl_getsimple_t - The SASL callback for username/authname/realm
SYNOPSIS
       #include <sasl/sasl.h>
       int sasl_getsimple_t(void *context,
                           int id,
                           const char ** result,
                           unsigned * len);
DESCRIPTION
       sasl_getsimple_t   is   used   to   retrieve  simple  things  from  the
       application. In practice this  is  authentication  name,  authorization
       name,  and  realm.  The  id  parameter  indicates  which value is being
       requested.  Possible values include:
       SASL_CB_USER     - Client user identity to login as
       SASL_CB_AUTHNAME - Client authentication name
       SASL_CB_LANGUAGE - Comma-separated list of RFC 1766 languages
       SASL_CB_CNONCE   - Client-nonce (for testing mostly)
RETURN VALUE
       SASL callback functions should return SASL return codes. See sasl.h for
       a complete list. SASL_OK indicates success.
CONFORMING TO
       RFC 2222
SEE ALSO
       sasl(3), sasl_callbacks(3), sasl_errors(3)