---
name: "gnutls_x509_crt_get_issuer"
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_crt_get_issuer"
---

# gnutls\_x509\_crt\_get\_issuer(3)

API function

## NAME

gnutls\_x509\_crt\_get\_issuer - API function

## SYNOPSIS

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

**int gnutls\_x509\_crt\_get\_issuer(gnutls\_x509\_crt\_t** *cert***, gnutls\_x509\_dn\_t \*** *dn***);**

## ARGUMENTS

- gnutls\_x509\_crt\_t cert

  should contain a **gnutls\_x509\_crt\_t** type

- gnutls\_x509\_dn\_t \* dn

  output variable with pointer to uint8\_t DN

## DESCRIPTION

Return the Certificate's Issuer DN as a **gnutls\_x509\_dn\_t** data type, that can be decoded using **gnutls\_x509\_dn\_get\_rdn\_ava()**.

Note that  *dn* should be treated as constant. Because it points into the  *cert* object, you should not use  *dn* after  *cert* is deallocated.

## RETURNS

Returns 0 on success, or an error code.

## 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/