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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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gnutls_x509_crt_get_dn_by_oid(3) gnutls gnutls_x509_crt_get_dn_by_oid(3)
gnutls_x509_crt_get_dn_by_oid - API function
#include <gnutls/x509.h>
int gnutls_x509_crt_get_dn_by_oid(gnutls_x509_crt_t cert, const
char * oid, unsigned indx, unsigned int raw_flag, void * buf,
size_t * buf_size);
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 RDN, this
specifies which to send. Use (0) to get the first
one.
unsigned int raw_flag
If non-zero returns the raw DER data of the DN part.
void * buf a pointer where the DN part will be copied (may be
null).
size_t * buf_size
initially holds the size of buf
This function will extract the part of the name of the
Certificate subject specified by the given OID. The output, if
the raw flag is not used, will be encoded as described in
RFC4514. Thus a string that is ASCII or UTF-8 encoded, depending
on the certificate data.
Some helper macros with popular OIDs can be found in
gnutls/x509.h If raw flag is (0), this function will only return
known OIDs as text. Other OIDs will be DER encoded, as described
in RFC4514 -- in hex format with a '#' prefix. You can check
about known OIDs using gnutls_x509_dn_oid_known().
If buf is null then only the size will be filled. If the
raw_flag is not specified the output is always null terminated,
although the
buf_size will not include the null character.
GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long
enough, and in that case the buf_size will be updated with the
required size. GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE if there are
no data in the current index. On success 0 is 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_crt_get_dn_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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