1/* Test re_search with multi-byte characters in UTF-8.
2 Copyright (C) 2013-2022 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#define _GNU_SOURCE 1
20#include <stdio.h>
21#include <string.h>
22#include <locale.h>
23#include <regex.h>
24
25static int
26do_test (void)
27{
28 struct re_pattern_buffer r;
29 /* ကျွန်ုပ်x */
30 const char *s = "\xe1\x80\x80\xe1\x80\xbb\xe1\x80\xbd\xe1\x80\x94\xe1\x80\xba\xe1\x80\xaf\xe1\x80\x95\xe1\x80\xbax";
31
32 if (setlocale (LC_ALL, "en_US.UTF-8") == NULL)
33 {
34 puts (s: "setlocale failed");
35 return 1;
36 }
37 memset (&r, 0, sizeof (r));
38
39 re_compile_pattern (pattern: "[^x]x", length: 5, buffer: &r);
40 /* This was triggering a buffer overflow. */
41 re_search (buffer: &r, String: s, length: strlen (s), start: 0, range: strlen (s), regs: 0);
42 return 0;
43}
44
45#define TEST_FUNCTION do_test ()
46#include "../test-skeleton.c"
47

source code of glibc/posix/bug-regex34.c