gnutls\_x509\_trust\_list\_remove\_cas(3) gnutls gnutls\_x509\_trust\_list\_remove\_cas(3)

# [NAME](#NAME)

gnutls\_x509\_trust\_list\_remove\_cas - API function

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_x509\_trust\_list\_remove\_cas(gnutls\_x509\_trust\_list\_t list, const gnutls\_x509\_crt\_t * clist, unsigned clist\_size);**

# [ARGUMENTS](#ARGUMENTS)

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

The list

[const gnutls\_x509\_crt\_t * clist](#const)

A list of CAs

[unsigned clist\_size](#unsigned)

The length of the CA list

# [DESCRIPTION](#DESCRIPTION)

This function will remove the given certificate authorities from the trusted list.

Note that this function can accept certificates and authorities not yet known. In that case they will be kept in a separate block list that will be used during certificate verification. Unlike **gnutls\_x509\_trust\_list\_add\_cas()** there is no deinitialization restriction for certificate list provided in this function.

# [RETURNS](#RETURNS)

The number of removed elements is returned.

# [SINCE](#SINCE)

3.1.10

# [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

---

Document: gnutls_x509_trust_list_remove_cas(3) from gnutls 3.8.13-r1 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls