gnutls\_x509\_trust\_list\_get\_issuer\_by\_dn(3) gnutls gnutls\_x509\_trust\_list\_get\_issuer\_by\_dn(3)

# [NAME](#NAME)

gnutls\_x509\_trust\_list\_get\_issuer\_by\_dn - API function

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_x509\_trust\_list\_get\_issuer\_by\_dn(gnutls\_x509\_trust\_list\_t list, const gnutls\_datum\_t * dn, gnutls\_x509\_crt\_t * issuer, unsigned int flags);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_x509\_trust\_list\_t list](#gnutls_x509_trust_list_t)

The list

[const gnutls\_datum\_t * dn](#const)

is the issuer's DN

[gnutls\_x509\_crt\_t * issuer](#gnutls_x509_crt_t)

Will hold the issuer if any. Should be deallocated after use.

[unsigned int flags](#unsigned)

Use zero

# [DESCRIPTION](#DESCRIPTION)

This function will find the issuer with the given name, and return a copy of the issuer, which must be freed using **gnutls\_x509\_crt\_deinit()**.

# [RETURNS](#RETURNS)

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value.

# [SINCE](#SINCE)

3.4.0

# [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

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Document: gnutls_x509_trust_list_get_issuer_by_dn(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls