gnutls_handshake_set_hook_function (3) - Linux Manuals
gnutls_handshake_set_hook_function: API function
NAMEgnutls_handshake_set_hook_function - API function
- 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
DESCRIPTIONThis 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.
WARNINGYou 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 BUGSReport bugs to <bugs [at] gnutls.org>.
Home page: http://www.gnutls.org
COPYRIGHTCopyright © 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 ALSOThe full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit