1  /* Test lookup of IPv4 mapped addresses in files database (bug 25457)
       2  
       3     Copyright (C) 2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public License as
       8     published by the Free Software Foundation; either version 2.1 of the
       9     License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; see the file COPYING.LIB.  If
      18     not, see <https://www.gnu.org/licenses/>.  */
      19  
      20  #include <stdio.h>
      21  #include <arpa/inet.h>
      22  #include <netdb.h>
      23  
      24  static int
      25  do_test (void)
      26  {
      27    struct sockaddr_in6 s6 = { .sin6_family = AF_INET6 };
      28    inet_pton (AF_INET6, "::ffff:192.168.0.1", &s6.sin6_addr);
      29  
      30    char node[NI_MAXHOST];
      31    int res = getnameinfo ((struct sockaddr *) &s6, sizeof (s6), node,
      32  			 sizeof (node), NULL, 0, NI_NAMEREQD);
      33    if (res)
      34      printf ("%d %s\n", res, gai_strerror (res));
      35    else
      36      printf ("node=%s\n", node);
      37  
      38    return res != 0;
      39  }
      40  
      41  #include <support/test-driver.c>