<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE programlisting PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
]>
<!-- Automatically generated file.  Do not edit. -->
<programlisting language="C">
// Load the trusted CA certificates.
gnutls_certificate_credentials_t cred = NULL;
int ret = gnutls_certificate_allocate_credentials (&#38;cred);
if (ret != GNUTLS_E_SUCCESS) {
  fprintf(stderr, "error: gnutls_certificate_allocate_credentials: %s\n",
	    gnutls_strerror(ret));
  exit(1);
}
// gnutls_certificate_set_x509_system_trust needs GNUTLS version 3.0
// or newer, so we hard-code the path to the certificate store
// instead.
static const char ca_bundle[] = "/etc/ssl/certs/ca-bundle.crt";
ret = gnutls_certificate_set_x509_trust_file
  (cred, ca_bundle, GNUTLS_X509_FMT_PEM);
if (ret == 0) {
  fprintf(stderr, "error: no certificates found in: %s\n", ca_bundle);
  exit(1);
}
if (ret &#60; 0) {
  fprintf(stderr, "error: gnutls_certificate_set_x509_trust_files(%s): %s\n",
	    ca_bundle, gnutls_strerror(ret));
  exit(1);
}
</programlisting>
