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NAME

       gnutls_srp_set_client_credentials_function - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       void            gnutls_srp_set_client_credentials_function(gnutls_srp_client_credentials_t
       cred, gnutls_srp_client_credentials_function         * func);

ARGUMENTS

       gnutls_srp_client_credentials_t         cred
                   is a gnutls_srp_server_credentials_t type.

       gnutls_srp_client_credentials_function         * func
                   is the callback function

DESCRIPTION

       This function can be used to set a callback to retrieve  the  username  and  password  for
       client SRP authentication.  The callback's function form is:

       int (*callback)(gnutls_session_t, char** username, char**password);

       The  username and  password must be allocated using gnutls_malloc().

       The   username  should be an ASCII string or UTF-8 string. In case of a UTF-8 string it is
       recommended to be following the PRECIS framework for usernames (rfc8265). The password can
       be in ASCII format, or normalized using gnutls_utf8_password_normalize().

       The  callback  function will be called once per handshake before the initial hello message
       is sent.

       The callback should not return a negative error code the second  time  called,  since  the
       handshake procedure will be aborted.

       The callback function should return 0 on success.  -1 indicates an error.

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2019 Free Software Foundation, Inc., and others.
       Copying  and distribution of this file, with or without modification, are permitted in any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained  as  a  Texinfo  manual.    If   the
       /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       https://www.gnutls.org/manual/