gnutls_psk_set_client_credentials_function(3)			      gnutls			     gnutls_psk_set_client_credentials_function(3)

NAME

       gnutls_psk_set_client_credentials_function - Used to set a callback to retrieve the username and key

SYNOPSIS

       #include <gnutls/gnutls.h>

       void   gnutls_psk_set_client_credentials_function(gnutls_psk_client_credentials_t	    cred,   gnutls_psk_client_credentials_function
       * func);

ARGUMENTS

       gnutls_psk_client_credentials_t		cred
		   is a gnutls_psk_server_credentials_t structure.

       gnutls_psk_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 PSK authentication.  The  callback's  function
       form is: int (*callback)(gnutls_session_t, char** username, gnutls_datum_t* key);

       The  username  and key->data must be allocated using gnutls_malloc().  username should be ASCII strings or UTF-8 strings prepared using the
       "SASLprep" profile of "stringprep".

       The callback function will be called once per handshake.

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

REPORTING BUGS

       Report  bugs  to  <bug-gnutls@gnu.org>.	 GnuTLS  home  page:  http://www.gnu.org/software/gnutls/  General  help   using   GNU	 software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright (C) 2008 Free Software Foundation.
       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 info and gnutls programs are properly installed at your  site,
       the command

	      info gnutls

       should give you access to the complete manual.

gnutls								       2.8.6			     gnutls_psk_set_client_credentials_function(3)