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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_x509_c..._extension_oid(3) gnutlsgnutls_x509_c..._extension_oid(3)
gnutls_x509_crt_get_extension_oid - API function
#include <gnutls/x509.h>
int gnutls_x509_crt_get_extension_oid(gnutls_x509_crt_t cert,
unsigned indx, void * oid, size_t * oid_size);
gnutls_x509_crt_t cert
should contain a gnutls_x509_crt_t type
unsigned indx
Specifies which extension OID to send. Use (0) to get
the first one.
void * oid a pointer to a structure to hold the OID (may be null)
size_t * oid_size
initially holds the size of oid
This function will return the requested extension OID in the
certificate. The extension OID will be stored as a string in the
provided buffer.
The oid returned will be null terminated, although oid_size will
not account for the trailing null.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
error code is returned. If you have reached the last extension
available 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 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 3.8.10gnutls_x509_c..._extension_oid(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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