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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_x509_c...e_constraints(3) gnutls gnutls_x509_c...e_constraints(3)
gnutls_x509_crt_get_name_constraints - API function
#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);
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
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.
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.
3.3.0
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
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.
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/
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this
manual page, send it to bugs@gnutls.org. This page was obtained
from the tarball fetched from
⟨https://www.gnupg.org/ftp/gcrypt/gnutls/⟩ on 2025-08-11. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for the
page, or you have corrections or improvements to the information
in this COLOPHON (which is not part of the original manual page),
send a mail to man-pages@man7.org
gnutls 3.8.10 gnutls_x509_c...e_constraints(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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