---
name: "gnutls_certificate_get_crt_raw"
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_certificate_get_crt_raw"
---

# gnutls\_certificate\_get\_crt\_raw(3)

API function

## NAME

gnutls\_certificate\_get\_crt\_raw - API function

## SYNOPSIS

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

**int gnutls\_certificate\_get\_crt\_raw(gnutls\_certificate\_credentials\_t** *sc***, unsigned** *idx1***, unsigned** *idx2***, gnutls\_datum\_t \*** *cert***);**

## ARGUMENTS

- gnutls\_certificate\_credentials\_t sc

  is a **gnutls\_certificate\_credentials\_t** type.

- unsigned idx1

  the index of the certificate chain if multiple are present

- unsigned idx2

  the index of the certificate in the chain. Zero gives the server's certificate.

- gnutls\_datum\_t \* cert

  Will hold the DER encoded certificate.

## DESCRIPTION

This function will return the DER encoded certificate of the server or any other certificate on its certificate chain (based on  *idx2* ). The returned data should be treated as constant and only accessible during the lifetime of  *sc* . The  *idx1* matches the value **gnutls\_certificate\_set\_x509\_key()** and friends functions.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value. In case the indexes are out of bounds **GNUTLS\_E\_REQUESTED\_DATA\_NOT\_AVAILABLE** is returned.

## SINCE

3\.2.5

## 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/