mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* Test the creation of many struct __res_state objects.
|
|
Copyright (C) 2017 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 <mcheck.h>
|
|
#include <resolv.h>
|
|
#include <resolv/resolv_context.h>
|
|
#include <stdlib.h>
|
|
#include <support/check.h>
|
|
|
|
/* Order the resolver states by their extended resolver state
|
|
index. */
|
|
static int
|
|
sort_res_state (const void *a, const void *b)
|
|
{
|
|
res_state left = (res_state) a;
|
|
res_state right = (res_state) b;
|
|
return memcmp (&left->_u._ext.__glibc_extension_index,
|
|
&right->_u._ext.__glibc_extension_index,
|
|
sizeof (left->_u._ext.__glibc_extension_index));
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
mtrace ();
|
|
|
|
enum { count = 100 * 1000 };
|
|
res_state array = calloc (count, sizeof (*array));
|
|
const struct resolv_conf *conf = NULL;
|
|
for (size_t i = 0; i < count; ++i)
|
|
{
|
|
TEST_VERIFY (res_ninit (array + i) == 0);
|
|
TEST_VERIFY (array[i].nscount > 0);
|
|
struct resolv_context *ctx = __resolv_context_get_override (array + i);
|
|
TEST_VERIFY_EXIT (ctx != NULL);
|
|
TEST_VERIFY (ctx->resp == array + i);
|
|
if (i == 0)
|
|
{
|
|
conf = ctx->conf;
|
|
TEST_VERIFY (conf != NULL);
|
|
}
|
|
else
|
|
/* The underyling configuration should be identical across all
|
|
res_state opjects because resolv.conf did not change. */
|
|
TEST_VERIFY (ctx->conf == conf);
|
|
}
|
|
qsort (array, count, sizeof (*array), sort_res_state);
|
|
for (size_t i = 1; i < count; ++i)
|
|
/* All extension indices should be different. */
|
|
TEST_VERIFY (sort_res_state (array + i - 1, array + i) < 0);
|
|
for (size_t i = 0; i < count; ++i)
|
|
res_nclose (array + i);
|
|
free (array);
|
|
|
|
TEST_VERIFY (res_init () == 0);
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|