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gnutls_x509_crt_get_name_constraints(3)                                 gnutls

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
       constraints 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_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: https://www.gnutls.org

COPYRIGHT
       Copyright (C) 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
       notice 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                               3.7.9
                                       gnutls_x509_crt_get_name_constraints(3)