---
name: "gnutls_x509_trust_list_add_trust_mem"
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_trust_mem"
---

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

API function

## NAME

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

## SYNOPSIS

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

**int gnutls\_x509\_trust\_list\_add\_trust\_mem(gnutls\_x509\_trust\_list\_t** *list***, const gnutls\_datum\_t \*** *cas***, const gnutls\_datum\_t \*** *crls***, gnutls\_x509\_crt\_fmt\_t** *type***, unsigned int** *tl\_flags***, unsigned int** *tl\_vflags***);**

## ARGUMENTS

- gnutls\_x509\_trust\_list\_t list

  The list

- const gnutls\_datum\_t \* cas

  A buffer containing a list of CAs (optional)

- const gnutls\_datum\_t \* crls

  A buffer containing a list of CRLs (optional)

- gnutls\_x509\_crt\_fmt\_t type

  The format of the certificates

- unsigned int tl\_flags

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

- unsigned int tl\_vflags

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

## DESCRIPTION

This function will add the given certificate authorities to the trusted list.

If this function is used **gnutls\_x509\_trust\_list\_deinit()** must be called with parameter  *all* being 1.

## RETURNS

The number of added elements is returned.

## SINCE

3\.1

## 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/