gnutls_hmac_copy(3) gnutls gnutls_hmac_copy(3)
NAME
gnutls_hmac_copy - API function
SYNOPSIS
#include <gnutls/crypto.h>
gnutls_hmac_hd_t gnutls_hmac_copy(gnutls_hmac_hd_t handle);
ARGUMENTS
gnutls_hmac_hd_t handle
is a gnutls_hmac_hd_t type
DESCRIPTION
This function will create a copy of MAC context, containing all its cur-
rent state. Copying contexts for MACs registered using
gnutls_crypto_register_mac() is not supported and will always result in
an error. In addition to that, some of the MAC implementations do not
support this operation. Applications should check the return value and
provide a proper fallback.
RETURNS
new MAC context or NULL in case of an error.
SINCE
3.6.9
REPORTING BUGS
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
COPYRIGHT
Copyright © 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 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
https://www.gnutls.org/manual/
gnutls 3.8.9 gnutls_hmac_copy(3)
Generated by dwww version 1.16 on Sat Oct 3 07:42:14 CEST 2026.