---
name: "gnutls_x509_crt_list_verify"
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_crt_list_verify"
---

# gnutls\_x509\_crt\_list\_verify(3)

API function

## NAME

gnutls\_x509\_crt\_list\_verify - API function

## SYNOPSIS

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

**int gnutls\_x509\_crt\_list\_verify(const gnutls\_x509\_crt\_t \*** *cert\_list***, unsigned** *cert\_list\_length***, const gnutls\_x509\_crt\_t \*** *CA\_list***, unsigned** *CA\_list\_length***, const gnutls\_x509\_crl\_t \*** *CRL\_list***, unsigned** *CRL\_list\_length***, unsigned int** *flags***, unsigned int \*** *verify***);**

## ARGUMENTS

- const gnutls\_x509\_crt\_t \* cert\_list

  is the certificate list to be verified

- unsigned cert\_list\_length

  holds the number of certificate in cert\_list

- const gnutls\_x509\_crt\_t \* CA\_list

  is the CA list which will be used in verification

- unsigned CA\_list\_length

  holds the number of CA certificate in CA\_list

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

  holds a list of CRLs.

- unsigned CRL\_list\_length

  the length of CRL list.

- unsigned int flags

  Flags that may be used to change the verification algorithm. Use OR of the gnutls\_certificate\_verify\_flags enumerations.

- unsigned int \* verify

  will hold the certificate verification output.

## DESCRIPTION

This function will try to verify the given certificate list and return its status. The details of the verification are the same as in **gnutls\_x509\_trust\_list\_verify\_crt2()**.

You must check the peer's name in order to check if the verified certificate belongs to the actual peer.

The certificate verification output will be put in  *verify* and will be one or more of the gnutls\_certificate\_status\_t enumerated elements bitwise or'd.  For a more detailed verification status use **gnutls\_x509\_crt\_verify()** per list element.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value.

## 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/