gnutls_x509_ext_import_name_constraints man page

gnutls_x509_ext_import_name_constraints — API function

Synopsis

#include <gnutls/x509-ext.h>

int gnutls_x509_ext_import_name_constraints(const gnutls_datum_t * ext, gnutls_x509_name_constraints_t nc, unsigned int flags);

Arguments

const gnutls_datum_t * ext

a DER encoded extension

gnutls_x509_name_constraints_t nc

The nameconstraints

unsigned int flags

zero or GNUTLS_NAME_CONSTRAINTS_FLAG_APPEND

Description

This function will return an intermediate type containing the name constraints of the provided NameConstraints extension. That can be used in combination with gnutls_x509_name_constraints_check() to verify whether a server's name is in accordance with the constraints.

When the  flags is set to GNUTLS_NAME_CONSTRAINTS_FLAG_APPEND, then if  the  nc type is empty this function will behave identically as if the flag was not set. Otherwise if there are elements in the  nc structure then the constraints will be merged with the existing constraints following RFC5280 p6.1.4 (excluded constraints will be appended, permitted will be intersected).

Note that  nc must be initialized prior to calling this function.

Returns

On success, GNUTLS_E_SUCCESS (0) is returned, GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if the extension is not present, otherwise a negative error value.

Since

3.3.0

Reporting Bugs

Report bugs to <bugs@gnutls.org>.
Home page: http://www.gnutls.org

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/

Info

3.6.1 gnutls