resolv/tst-inet_aton_exact.c

   1 /* Test internal legacy IPv4 text-to-address function __inet_aton_exact.
   2    Copyright (C) 2019-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <arpa/inet.h>
  20 #include <support/check.h>
  21
  22 static int
  23 do_test (void)
  24 {
  25   struct in_addr addr = { };
  26
  27   TEST_COMPARE (__inet_aton_exact ("192.0.2.1", &addr), 1);
  28   TEST_COMPARE (ntohl (addr.s_addr), 0xC0000201);
  29
  30   TEST_COMPARE (__inet_aton_exact ("192.000.002.010", &addr), 1);
  31   TEST_COMPARE (ntohl (addr.s_addr), 0xC0000208);
  32   TEST_COMPARE (__inet_aton_exact ("0xC0000234", &addr), 1);
  33   TEST_COMPARE (ntohl (addr.s_addr), 0xC0000234);
  34
  35   /* Trailing content is not accepted.  */
  36   TEST_COMPARE (__inet_aton_exact ("192.0.2.2X", &addr), 0);
  37   TEST_COMPARE (__inet_aton_exact ("192.0.2.3 Y", &addr), 0);
  38   TEST_COMPARE (__inet_aton_exact ("192.0.2.4\nZ", &addr), 0);
  39   TEST_COMPARE (__inet_aton_exact ("192.0.2.5\tT", &addr), 0);
  40   TEST_COMPARE (__inet_aton_exact ("192.0.2.6 Y", &addr), 0);
  41   TEST_COMPARE (__inet_aton_exact ("192.0.2.7\n", &addr), 0);
  42   TEST_COMPARE (__inet_aton_exact ("192.0.2.8\t", &addr), 0);
  43
  44   return 0;
  45 }
  46
  47 #include <support/test-driver.c>