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-rw-r--r--resolv/tst-inet_aton_exact.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/resolv/tst-inet_aton_exact.c b/resolv/tst-inet_aton_exact.c
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+/* Test internal legacy IPv4 text-to-address function __inet_aton_exact.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <arpa/inet.h>
+#include <support/check.h>
+
+static int
+do_test (void)
+{
+  struct in_addr addr = { };
+
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.1", &addr), 1);
+  TEST_COMPARE (ntohl (addr.s_addr), 0xC0000201);
+
+  TEST_COMPARE (__inet_aton_exact ("192.000.002.010", &addr), 1);
+  TEST_COMPARE (ntohl (addr.s_addr), 0xC0000208);
+  TEST_COMPARE (__inet_aton_exact ("0xC0000234", &addr), 1);
+  TEST_COMPARE (ntohl (addr.s_addr), 0xC0000234);
+
+  /* Trailing content is not accepted.  */
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.2X", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.3 Y", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.4\nZ", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.5\tT", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.6 Y", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.7\n", &addr), 0);
+  TEST_COMPARE (__inet_aton_exact ("192.0.2.8\t", &addr), 0);
+
+  return 0;
+}
+
+#include <support/test-driver.c>