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gnutls_x509_crq_get_basic_constraints(3) — Linux manual page

gnutls_x509_c...ic_constraints(3) gnutlsgnutls_x509_c...ic_constraints(3)

NAME        top

       gnutls_x509_crq_get_basic_constraints - API function

SYNOPSIS        top

#include <gnutls/x509.h>int gnutls_x509_crq_get_basic_constraints(gnutls_x509_crq_tcrq,unsigned int *critical, unsigned int *ca, int *pathlen);

ARGUMENTS        top

       gnutls_x509_crq_t crq                   should contain agnutls_x509_crq_ttype       unsigned int * critical                   will be non-zero if the extension is marked as                   critical       unsigned int * ca                   pointer to output integer indicating CA status, may be                   NULL, value is 1 if the certificate CA flag is set, 0                   otherwise.       int * pathlen                   pointer to output integer indicating path length (may                   be NULL), non-negative error codes indicate a present                   pathLenConstraint field and the actual value, -1                   indicate that the field is absent.

DESCRIPTION        top

       This function will read the certificate's basic constraints, and       return the certificates CA status.  It reads the basicConstraints       X.509 extension (2.5.29.19).

RETURNS        top

       If the certificate is a CA a positive value will be returned, or       (0) if the certificate does not have CA flag set.  A negative       error code may be returned in case of errors.  If the certificate       does not contain the basicConstraints extensionGNUTLS_E_REQUESTED_DATA_NOT_AVAILABLEwill be returned.

SINCE        top

       2.8.0

REPORTING BUGS        top

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

COPYRIGHT        top

       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        top

       The full documentation forgnutlsis maintained as a Texinfo       manual.  If the /usr/share/doc/gnutls/ directory does not contain       the HTML form visithttps://www.gnutls.org/manual/

COLOPHON        top

       This page is part of theGnuTLS (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 isnot part of the original manual page),       send a mail to man-pages@man7.orggnutls                            3.8.10gnutls_x509_c...ic_constraints(3)

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