gnutls_x509_crt_get_name_constraintsgnugnutls_x509_crt_get_name_constraints(3)
NAME
gnutls_x509_crt_get_name_constraints - API function
SYNOPSIS
#include <gnutls/x509.h>
int gnutls_x509_crt_get_name_constraints(gnutls_x509_crt_t crt,
gnutls_x509_name_constraints_t nc, unsigned int flags, unsigned int *
critical);
ARGUMENTS
gnutls_x509_crt_t crt
should contain a gnutls_x509_crt_t type
gnutls_x509_name_constraints_t nc
The nameconstraints intermediate type
unsigned int flags
zero or GNUTLS_EXT_FLAG_APPEND
unsigned int * critical
the extension status
DESCRIPTION
This function will return an intermediate type containing the name con-
straints of the provided CA certificate. That structure 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_EXT_FLAG_APPEND, then if the nc
structure 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_RE-
QUESTED_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: https://www.gnutls.org
COPYRIGHT
Copyright © 2001- 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/share/doc/gnutls/ directory does not contain the HTML form
visit
https://www.gnutls.org/manual/
gnutls 3.gnutls_x509_crt_get_name_constraints(3)
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