---
name: "gnutls_system_key_iter_get_info"
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_system_key_iter_get_info"
---

# gnutls\_system\_key\_iter\_get\_info(3)

API function

## NAME

gnutls\_system\_key\_iter\_get\_info - API function

## SYNOPSIS

**#include \<gnutls/system-keys.h\>**

**int gnutls\_system\_key\_iter\_get\_info(gnutls\_system\_key\_iter\_t \*** *iter***, unsigned** *cert\_type***, char \*\*** *cert\_url***, char \*\*** *key\_url***, char \*\*** *label***, gnutls\_datum\_t \*** *der***, unsigned int** *flags***);**

## ARGUMENTS

- gnutls\_system\_key\_iter\_t \* iter

  an iterator of the system keys (must be set to **NULL** initially)

- unsigned cert\_type

  A value of gnutls\_certificate\_type\_t which indicates the type of certificate to look for

- char \*\* cert\_url

  The certificate URL of the pair (may be **NULL**)

- char \*\* key\_url

  The key URL of the pair (may be **NULL**)

- char \*\* label

  The friendly name (if any) of the pair (may be **NULL**)

- gnutls\_datum\_t \* der

  if non-NULL the DER data of the certificate

- unsigned int flags

  should be zero

## DESCRIPTION

This function will return on each call a certificate and key pair URLs, as well as a label associated with them, and the DER-encoded certificate. When the iteration is complete it will return **GNUTLS\_E\_REQUESTED\_DATA\_NOT\_AVAILABLE**.

Typically  *cert\_type* should be **GNUTLS\_CRT\_X509**.

All values set are allocated and must be cleared using **gnutls\_free()**,

## RETURNS

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

## SINCE

3\.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/