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

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

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

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

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_x509\_crt\_t cert](#gnutls_x509_crt_t)

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

[gnutls\_x509\_dn\_t * dn](#gnutls_x509_dn_t)

output variable with pointer to uint8\_t DN

# [DESCRIPTION](#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)

Returns 0 on success, or an error code.

# [REPORTING BUGS](#REPORTING_BUGS)

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

# [COPYRIGHT](#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](#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/](https://www.gnutls.org/manual/)

3.8.13 gnutls

---

Document: gnutls_x509_crt_get_issuer(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls