NAME¶
gnutls_handshake_set_hook_function - API function
SYNOPSIS¶
#include <gnutls/gnutls.h>
void gnutls_handshake_set_hook_function(gnutls_session_t
session, unsigned int htype, int
post, gnutls_handshake_hook_func func);
ARGUMENTS¶
- gnutls_session_t session
- is a gnutls_session_t structure
- unsigned int htype
- the gnutls_handshake_description_t of the message to hook at
- int post
- GNUTLS_HOOK_* depending on when the hook function should be
called
- gnutls_handshake_hook_func func
- is the function to be called
DESCRIPTION¶
This function will set a callback to be called after or before the specified
handshake message has been received or generated. This is a generalization of
gnutls_handshake_set_post_client_hello_function().
To call the hook function prior to the message being sent/generated use
GNUTLS_HOOK_PRE as
post parameter,
GNUTLS_HOOK_POST to
call after, and
GNUTLS_HOOK_BOTH for both cases.
This callback must return 0 on success or a gnutls error code to terminate the
handshake.
Note to hook at all handshake messages use an
htype of
GNUTLS_HANDSHAKE_ANY.
WARNING¶
You should not use this function to terminate the handshake based on client
input unless you know what you are doing. Before the handshake is finished
there is no way to know if there is a man-in-the-middle attack being
performed.
REPORTING BUGS¶
Report bugs to <bugs@gnutls.org>.
Home page:
http://www.gnutls.org
COPYRIGHT¶
Copyright © 2001-2014 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 /usr/share/doc/gnutls/ directory does not contain the HTML form visit
- http://www.gnutls.org/manual/