---
name: "gnutls_x509_trust_list_add_crls"
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_x509_trust_list_add_crls"
---

# gnutls\_x509\_trust\_list\_add\_crls(3)

API function

## NAME

gnutls\_x509\_trust\_list\_add\_crls - API function

## SYNOPSIS

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

**int gnutls\_x509\_trust\_list\_add\_crls(gnutls\_x509\_trust\_list\_t** *list***, const gnutls\_x509\_crl\_t \*** *crl\_list***, unsigned** *crl\_size***, unsigned int** *flags***, unsigned int** *verification\_flags***);**

## ARGUMENTS

- gnutls\_x509\_trust\_list\_t list

  The list

- const gnutls\_x509\_crl\_t \* crl\_list

  A list of CRLs

- unsigned crl\_size

  The length of the CRL list

- unsigned int flags

  flags from **gnutls\_trust\_list\_flags\_t**

- unsigned int verification\_flags

  gnutls\_certificate\_verify\_flags if flags specifies GNUTLS\_TL\_VERIFY\_CRL

## DESCRIPTION

This function will add the given certificate revocation lists to the trusted list. The CRLs in  *crl\_list* must not be deinitialized during the lifetime of  *list* .

This function must be called after **gnutls\_x509\_trust\_list\_add\_cas()** to allow verifying the CRLs for validity. If the flag **GNUTLS\_TL\_NO\_DUPLICATES** is given, then the final CRL list will not contain duplicate entries.

If the flag **GNUTLS\_TL\_NO\_DUPLICATES** is given, **gnutls\_x509\_trust\_list\_deinit()** must be called with parameter  *all* being 1.

If flag **GNUTLS\_TL\_VERIFY\_CRL** is given the CRLs will be verified before being added, and if verification fails, they will be skipped.

## RETURNS

The number of added elements is returned; that includes duplicate entries.

## SINCE

3\.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/