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gnutls_session_ext_register(3) gnutls gnutls_session_ext_register(3) NAME gnutls_session_ext_register - API function SYNOPSIS #include <gnutls/gnutls.h> int gnutls_session_ext_register(gnutls_session_t session, const char * name, int id, gnutls_ext_parse_type_t parse_point, gnutls_ext_recv_func recv_func, gnutls_ext_send_func send_func, gnutls_ext_deinit_data_func deinit_func, gnutls_ext_pack_func pack_func, gnutls_ext_unpack_func un- pack_func, unsigned flags); ARGUMENTS gnutls_session_t session the session for which this extension will be set const char * name the name of the extension to register int id the numeric id of the extension gnutls_ext_parse_type_t parse_point the parse type of the extension (see gnutls_ext_parse_type_t) gnutls_ext_recv_func recv_func a function to receive the data gnutls_ext_send_func send_func a function to send the data gnutls_ext_deinit_data_func deinit_func a function deinitialize any private data gnutls_ext_pack_func pack_func a function which serializes the extension's private data (used on session packing for resumption) gnutls_ext_unpack_func unpack_func a function which will deserialize the extension's private data unsigned flags must be zero or flags from gnutls_ext_flags_t DESCRIPTION This function will register a new extension type. The extension will be only usable within the registered session. If the extension type is al- ready registered then GNUTLS_E_ALREADY_REGISTERED will be returned, un- less the flag GNUTLS_EXT_FLAG_OVERRIDE_INTERNAL is specified. The lat- ter flag when specified can be used to override certain extensions in- troduced after 3.6.0. It is expected to be used by applications which handle custom extensions that are not currently supported in GnuTLS, but direct support for them may be added in the future. Each registered extension can store temporary data into the gnutls_ses- sion_t structure using gnutls_ext_set_data(), and they can be retrieved using gnutls_ext_get_data(). The validity of the extension registered can be given by the appropri- ate flags of gnutls_ext_flags_t. If no validity is given, then the reg- istered extension will be valid for client and TLS1.2 server hello (or encrypted extensions for TLS1.3). RETURNS GNUTLS_E_SUCCESS on success, otherwise a negative error code. SINCE 3.5.5 REPORTING BUGS Report bugs to <bugs@gnutls.org>. Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 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 no- tice and this notice are preserved. SEE ALSO The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/local/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.8.10 gnutls_session_ext_register(3)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO
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