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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_x509_c...ension_by_oid(3) gnutls gnutls_x509_c...ension_by_oid(3)
gnutls_x509_crt_get_extension_by_oid - API function
#include <gnutls/x509.h>
int gnutls_x509_crt_get_extension_by_oid(gnutls_x509_crt_t cert,
const char * oid, unsigned indx, void * buf, size_t * buf_size,
unsigned int * critical);
gnutls_x509_crt_t cert
should contain a gnutls_x509_crt_t type
const char * oid
holds an Object Identified in null terminated string
unsigned indx
In case multiple same OIDs exist in the extensions,
this specifies which to send. Use (0) to get the
first one.
void * buf a pointer to a structure to hold the name (may be
null)
size_t * buf_size
initially holds the size of buf
unsigned int * critical
will be non-zero if the extension is marked as
critical
This function will return the extension specified by the OID in
the certificate. The extensions will be returned as binary data
DER encoded, in the provided buffer.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a
negative error code is returned. If the certificate does not
contain the specified extension
GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
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 gnutls-3.8.5.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2024-06-14. 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 3.8.5 gnutls_x509_c...ension_by_oid(3)
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HTML rendering created 2024-06-26 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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