---
name: "gnutls_certificate_set_x509_crl_file"
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_set_x509_crl_file"
---

# gnutls\_certificate\_set\_x509\_crl\_file(3)

API function

## NAME

gnutls\_certificate\_set\_x509\_crl\_file - API function

## SYNOPSIS

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

**int gnutls\_certificate\_set\_x509\_crl\_file(gnutls\_certificate\_credentials\_t** *res***, const char \*** *crlfile***, gnutls\_x509\_crt\_fmt\_t** *type***);**

## ARGUMENTS

- gnutls\_certificate\_credentials\_t res

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

- const char \* crlfile

  is a file containing the list of verified CRLs (DER or PEM list)

- gnutls\_x509\_crt\_fmt\_t type

  is PEM or DER

## DESCRIPTION

This function adds the trusted CRLs in order to verify client or server certificates.  In case of a client this is not required to be called if the certificates are not verified using **gnutls\_certificate\_verify\_peers2()**. This function may be called multiple times.

## RETURNS

number of CRLs processed or a negative error code on error.

## 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/