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gnutls_ia_set_client_avp_function(3) [suse man page]

gnutls_ia_set_client_avp_function(3)				      gnutls				      gnutls_ia_set_client_avp_function(3)

NAME

       gnutls_ia_set_client_avp_function - Used to set a AVP callback

SYNOPSIS

       #include <gnutls/extra.h>

       void gnutls_ia_set_client_avp_function(gnutls_ia_client_credentials_t cred, gnutls_ia_avp_func avp_func);

ARGUMENTS

       gnutls_ia_client_credentials_t cred
		   is a gnutls_ia_client_credentials_t structure.

       gnutls_ia_avp_func avp_func
		   is the callback function

DESCRIPTION

       Set the TLS/IA AVP callback handler used for the session.

       The AVP callback is called to process AVPs received from the server, and to get a new AVP to send to the server.

       The  callback's	function  form	is:  int  (*avp_func) (gnutls_session_t session, void *ptr, const char *last, size_t lastlen, char **next,
       size_t *nextlen);

       The session parameter is the gnutls_session_t structure corresponding to the current session.  The ptr parameter is  the  application  hook
       pointer,  set  through  gnutls_ia_set_client_avp_ptr().	The AVP received from the server is present in last of lastlen size, which will be
       NULL on the first invocation.  The newly allocated output AVP to send to the server should be placed in *next of *nextlen size.

       The callback may invoke gnutls_ia_permute_inner_secret() to mix any generated session keys with the TLS/IA inner secret.

       Return 0 (GNUTLS_IA_APPLICATION_PAYLOAD) on success, or a negative error code to abort the TLS/IA handshake.

       Note that the callback must use allocate the next parameter using gnutls_malloc(), because it is released via gnutls_free() by  the  TLS/IA
       handshake function.

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_ia_set_client_avp_function(3)

Check Out this Related Man Page

gnutls_psk_set_server_credentials_function(3)			      gnutls			     gnutls_psk_set_server_credentials_function(3)

NAME

       gnutls_psk_set_server_credentials_function - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       void	 gnutls_psk_set_server_credentials_function(gnutls_psk_server_credentials_t						     cred,
       gnutls_psk_server_credentials_function						  * func);

ARGUMENTS

       gnutls_psk_server_credentials_t						   cred
		   is a gnutls_psk_server_credentials_t structure.

       gnutls_psk_server_credentials_function						  * func
		   is the callback function

DESCRIPTION

       This function can be used to set a callback to retrieve the  user's  PSK  credentials.	The  callback's  function  form  is:  int  (*call-
       back)(gnutls_session_t, const char* username, gnutls_datum_t* key);

	username contains the actual username.	The  key must be filled in using the gnutls_malloc().

       In case the callback returned a negative number then gnutls will assume that the username does not exist.

       The  callback  function	will  only  be called once per handshake.  The callback function should return 0 on success, while -1 indicates an
       error.

REPORTING BUGS

       Report bugs to <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

COPYRIGHT

       Copyright (C) 2012 Free Software Foundation, Inc..
       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.  As an alternative you may obtain the manual from:

	      http://www.gnu.org/software/gnutls/manual/

gnutls								      3.1.15			     gnutls_psk_set_server_credentials_function(3)
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