#ifdef USE_LIBIDN

#include <idna.h>

#include <tld.h>

#include <stringprep.h>

#ifdef HAVE_IDN_FREE_H

#include <idn-free.h>

  }

  return TRUE;

}

/*

 * Check if characters in hostname is allowed in Top Level Domain.

 */

static bool tld_check_name (struct connectdata *conn,

                            const char *ace_hostname)

{

  struct SessionHandle *data = conn->data;

  size_t err_pos;

  char *uc_name = NULL;

  int rc;

  /* Convert (and downcase) ACE-name back into locale's character set */

  rc = idna_to_unicode_lzlz(ace_hostname, &uc_name, 0);

  if (rc != IDNA_SUCCESS)

     infof(data, "Failed to convert %s from ACE; %s\n",

           ace_hostname, Curl_idn_strerror(conn,rc));

  rc = tld_check_lz(uc_name, &err_pos, NULL);

  if (rc == TLD_INVALID)

     infof(data, "WARNING: %s; pos %u = `%c'/0x%02X\n",

           tld_strerror(rc), err_pos, uc_name[err_pos],

           uc_name[err_pos] & 255);

  else if (rc != TLD_SUCCESS)

       infof(data, "WARNING: TLD check for %s failed; %s\n",

             uc_name, tld_strerror(rc));

  if (uc_name)

     idn_free(uc_name);

  return (rc == TLD_SUCCESS);

}

#endif

static void fix_hostname(struct connectdata *conn, struct hostname *host)

      infof(data, "Failed to convert %s to ACE; %s\n",

            host->name, Curl_idn_strerror(conn,rc));

    else {

      tld_check_name(conn, ace_hostname);

      host->encalloc = ace_hostname;

      /* change the name pointer to point to the encoded hostname */

      host->name = host->encalloc;