---
name: "gnutls_x509_crt_list_import"
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_import"
---

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

API function

## NAME

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

## SYNOPSIS

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

**int gnutls\_x509\_crt\_list\_import(gnutls\_x509\_crt\_t \*** *certs***, unsigned int \*** *cert\_max***, const gnutls\_datum\_t \*** *data***, gnutls\_x509\_crt\_fmt\_t** *format***, unsigned int** *flags***);**

## ARGUMENTS

- gnutls\_x509\_crt\_t \* certs

  Indicates where the parsed list will be copied to. Must not be initialized.

- unsigned int \* cert\_max

  Initially must hold the maximum number of certs. It will be updated with the number of certs available.

- const gnutls\_datum\_t \* data

  The PEM encoded certificate.

- gnutls\_x509\_crt\_fmt\_t format

  One of DER or PEM.

- unsigned int flags

  must be (0) or an OR'd sequence of gnutls\_certificate\_import\_flags.

## DESCRIPTION

This function will convert the given PEM encoded certificate list to the native gnutls\_x509\_crt\_t format. The output will be stored in  *certs* .  They will be automatically initialized.

The flag **GNUTLS\_X509\_CRT\_LIST\_IMPORT\_FAIL\_IF\_EXCEED** will cause import to fail if the certificates in the provided buffer are more than the available structures. The **GNUTLS\_X509\_CRT\_LIST\_FAIL\_IF\_UNSORTED** flag will cause the function to fail if the provided list is not sorted from subject to issuer.

If the Certificate is PEM encoded it should have a header of "X509 CERTIFICATE", or "CERTIFICATE".

## RETURNS

the number of certificates read or 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/