1/* Test for memory handling in regex.
2 Copyright (C) 2002-2022 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 <mcheck.h>
21#include <regex.h>
22#include <stdio.h>
23#include <stdlib.h>
24
25
26static const char text[] = "#! /bin/sh";
27
28int
29main (void)
30{
31 regex_t re;
32 regmatch_t rm[2];
33 int n;
34
35 mtrace ();
36
37 n = regcomp (preg: &re, pattern: "^#! */.*/(k|ba||pdk|z)sh", REG_EXTENDED);
38 if (n != 0)
39 {
40 char buf[500];
41 regerror (errcode: n, preg: &re, errbuf: buf, errbuf_size: sizeof (buf));
42 printf (format: "regcomp failed: %s\n", buf);
43 exit (1);
44 }
45
46 for (n = 0; n < 20; ++n)
47 {
48 if (regexec (preg: &re, String: text, nmatch: 2, pmatch: rm, eflags: 0))
49 {
50 puts (s: "regexec failed");
51 exit (2);
52 }
53 if (rm[0].rm_so != 0 || rm[0].rm_eo != 10
54 || rm[1].rm_so != 8 || rm[1].rm_eo != 8)
55 {
56 printf (format: "regexec match failure: %d %d %d %d\n",
57 rm[0].rm_so, rm[0].rm_eo, rm[1].rm_so, rm[1].rm_eo);
58 exit (3);
59 }
60 }
61
62 regfree (preg: &re);
63
64 return 0;
65}
66

source code of glibc/posix/bug-regex9.c