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e237357a | 1 | /* Test the creation of many struct __res_state objects. |
04277e02 | 2 | Copyright (C) 2017-2019 Free Software Foundation, Inc. |
e237357a FW |
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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <mcheck.h> | |
20 | #include <resolv.h> | |
21 | #include <resolv/resolv_context.h> | |
22 | #include <stdlib.h> | |
23 | #include <support/check.h> | |
24 | ||
25 | /* Order the resolver states by their extended resolver state | |
26 | index. */ | |
27 | static int | |
28 | sort_res_state (const void *a, const void *b) | |
29 | { | |
30 | res_state left = (res_state) a; | |
31 | res_state right = (res_state) b; | |
32 | return memcmp (&left->_u._ext.__glibc_extension_index, | |
33 | &right->_u._ext.__glibc_extension_index, | |
34 | sizeof (left->_u._ext.__glibc_extension_index)); | |
35 | } | |
36 | ||
37 | static int | |
38 | do_test (void) | |
39 | { | |
40 | mtrace (); | |
41 | ||
42 | enum { count = 100 * 1000 }; | |
43 | res_state array = calloc (count, sizeof (*array)); | |
44 | const struct resolv_conf *conf = NULL; | |
45 | for (size_t i = 0; i < count; ++i) | |
46 | { | |
47 | TEST_VERIFY (res_ninit (array + i) == 0); | |
48 | TEST_VERIFY (array[i].nscount > 0); | |
49 | struct resolv_context *ctx = __resolv_context_get_override (array + i); | |
50 | TEST_VERIFY_EXIT (ctx != NULL); | |
51 | TEST_VERIFY (ctx->resp == array + i); | |
52 | if (i == 0) | |
53 | { | |
54 | conf = ctx->conf; | |
55 | TEST_VERIFY (conf != NULL); | |
56 | } | |
57 | else | |
58 | /* The underyling configuration should be identical across all | |
59 | res_state opjects because resolv.conf did not change. */ | |
60 | TEST_VERIFY (ctx->conf == conf); | |
61 | } | |
62 | qsort (array, count, sizeof (*array), sort_res_state); | |
63 | for (size_t i = 1; i < count; ++i) | |
64 | /* All extension indices should be different. */ | |
65 | TEST_VERIFY (sort_res_state (array + i - 1, array + i) < 0); | |
66 | for (size_t i = 0; i < count; ++i) | |
67 | res_nclose (array + i); | |
68 | free (array); | |
69 | ||
70 | TEST_VERIFY (res_init () == 0); | |
71 | return 0; | |
72 | } | |
73 | ||
ba374b6d | 74 | #define TIMEOUT 50 |
e237357a | 75 | #include <support/test-driver.c> |