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1/* Copyright (C) 2013-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#include <locale.h>
19#include <stdio.h>
20#include <stdint.h>
21#include <stdlib.h>
22#include <string.h>
23
24#include <support/check.h>
25#include <support/test-driver.h>
26
27/* Verify that strcoll does not crash for large strings for which it
28 cannot cache weight lookup results. The size is large enough to
29 cause integer overflows on 32-bit as well as buffer overflows on
30 64-bit. */
31#define SIZE 0x40000000ul
32
33int
34do_test (void)
35{
36 TEST_VERIFY_EXIT (setlocale (LC_COLLATE, "en_GB.UTF-8") != NULL);
37
38 char *p = malloc (SIZE);
39 if (p == NULL)
40 {
41 puts ("info: could not allocate memory, cannot run test");
42 return EXIT_UNSUPPORTED;
43 }
44
45 memset (p, 'x', SIZE - 1);
46 p[SIZE - 1] = 0;
47 printf ("info: strcoll result: %d\n", strcoll (p, p));
48 return 0;
49}
50
51/* This test can rung for a long time, but it should complete within
52 this time on reasonably current hardware. */
53#define TIMEOUT 300
54#include <support/test-driver.c>
55

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