1 | /* Test host lookup with double dots at the end, [BZ #16469]. |
2 | Copyright (C) 2014-2022 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 <sys/types.h> |
20 | #include <sys/socket.h> |
21 | #include <netdb.h> |
22 | #include <stdio.h> |
23 | #include <string.h> |
24 | |
25 | static int |
26 | test (void) |
27 | { |
28 | static char host1[] = "localhost.." ; |
29 | static char host2[] = "www.gnu.org.." ; |
30 | static char *hosts[] = { host1, host2 }; |
31 | int i; |
32 | int pass = 0; |
33 | |
34 | for (i = 0; i < sizeof (hosts) / sizeof (*hosts); i++) |
35 | { |
36 | char *host = hosts[i]; |
37 | size_t len = strlen (host); |
38 | struct addrinfo *ai; |
39 | |
40 | /* If the name doesn't resolve with a single dot at the |
41 | end, skip it. */ |
42 | host[len-1] = 0; |
43 | if (getaddrinfo (host, NULL, NULL, &ai) != 0) |
44 | { |
45 | printf (format: "resolving \"%s\" failed, skipping this hostname\n" , host); |
46 | continue; |
47 | } |
48 | printf (format: "resolving \"%s\" worked, proceeding to test\n" , host); |
49 | freeaddrinfo (ai); |
50 | |
51 | /* If it resolved with a single dot, check that it doesn't with |
52 | a second trailing dot. */ |
53 | host[len-1] = '.'; |
54 | if (getaddrinfo (host, NULL, NULL, &ai) == 0) |
55 | { |
56 | printf (format: "resolving \"%s\" worked, test failed\n" , host); |
57 | return 1; |
58 | } |
59 | printf (format: "resolving \"%s\" failed, test passed\n" , host); |
60 | pass = 1; |
61 | } |
62 | |
63 | /* We want at least one successful name resolution for the test to |
64 | succeed. */ |
65 | return pass ? 0 : 2; |
66 | } |
67 | |
68 | #define TEST_FUNCTION test () |
69 | #include "../test-skeleton.c" |
70 | |