---
name: "gnutls_x509_rdn_get_oid"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_x509_rdn_get_oid"
---

# gnutls\_x509\_rdn\_get\_oid(3)

API function

## NAME

gnutls\_x509\_rdn\_get\_oid - API function

## SYNOPSIS

**#include \<gnutls/x509.h\>**

**int gnutls\_x509\_rdn\_get\_oid(const gnutls\_datum\_t \*** *idn***, unsigned** *indx***, void \*** *buf***, size\_t \*** *buf\_size***);**

## ARGUMENTS

- const gnutls\_datum\_t \* idn

  should contain a DER encoded RDN sequence

- unsigned indx

  Indicates which OID to return. Use 0 for the first one.

- void \* buf

  a pointer to a structure to hold the peer's name OID

- size\_t \* buf\_size

  holds the size of  *buf*

## DESCRIPTION

This function will return the specified Object identifier, of the RDN sequence.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, or **GNUTLS\_E\_SHORT\_MEMORY\_BUFFER** is returned and \* *buf\_size* is updated if the provided buffer is not long enough, otherwise a negative error value.

## SINCE

2\.4.0

## REPORTING BUGS

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

## COPYRIGHT

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

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/