gnutls\_x509\_trust\_list\_add\_trust\_file(3) gnutls gnutls\_x509\_trust\_list\_add\_trust\_file(3)

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_x509\_trust\_list\_add\_trust\_file(gnutls\_x509\_trust\_list\_t list, const char * ca\_file, const char * crl\_file, gnutls\_x509\_crt\_fmt\_t type, unsigned int tl\_flags, unsigned int tl\_vflags);**

# [ARGUMENTS](#ARGUMENTS)

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

The list

[const char * ca\_file](#const)

A file containing a list of CAs (optional)

[const char * crl\_file](#const~2)

A file containing a list of CRLs (optional)

[gnutls\_x509\_crt\_fmt\_t type](#gnutls_x509_crt_fmt_t)

The format of the certificates

[unsigned int tl\_flags](#unsigned)

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

[unsigned int tl\_vflags](#unsigned~2)

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

# [DESCRIPTION](#DESCRIPTION)

This function will add the given certificate authorities to the trusted list. PKCS **11** URLs are also accepted, instead of files, by this function. A PKCS **11** URL implies a trust database (a specially marked module in p11-kit); the URL "pkcs11:" implies all trust databases in the system. Only a single URL specifying trust databases can be set; they cannot be stacked with multiple calls.

# [RETURNS](#RETURNS)

The number of added elements is returned.

# [SINCE](#SINCE)

3.1

# [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

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Document: gnutls_x509_trust_list_add_trust_file(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls