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/* register.c - example program to demonstrate IDNA2008 Register using Libidn2
Copyright (C) 2011-2025 Simon Josefsson
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h> /* printf, fflush, fgets, stdin, perror, fprintf */
#include <string.h> /* strlen */
#include <locale.h> /* setlocale */
#include <stdlib.h> /* free */
#include <idn2.h> /* idn2_register_ul, IDN2_OK, idn2_strerror, idn2_strerror_name */
int
main (int argc, char *argv[])
{
int rc;
char src[BUFSIZ];
char *insertname;
setlocale (LC_ALL, "");
printf ("Enter (possibly non-ASCII) label to register: ");
fflush (stdout);
if (!fgets (src, sizeof (src), stdin))
{
perror ("fgets");
return 1;
}
src[strlen (src) - 1] = '\0';
rc = idn2_register_ul (src, NULL, &insertname, 0);
if (rc != IDN2_OK)
{
fprintf (stderr, "error: %s (%s, %d)\n",
idn2_strerror (rc), idn2_strerror_name (rc), rc);
return 1;
}
printf ("IDNA2008 label to register in DNS: %s\n", insertname);
free (insertname);
return 0;
}
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