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 
26 static const char text[] = "#! /bin/sh";
27 
28 int
main(void)29 main (void)
30 {
31   regex_t re;
32   regmatch_t rm[2];
33   int n;
34 
35   mtrace ();
36 
37   n = regcomp (&re, "^#! */.*/(k|ba||pdk|z)sh", REG_EXTENDED);
38   if (n != 0)
39     {
40       char buf[500];
41       regerror (n, &re, buf, sizeof (buf));
42       printf ("regcomp failed: %s\n", buf);
43       exit (1);
44     }
45 
46   for (n = 0; n < 20; ++n)
47     {
48       if (regexec (&re, text, 2, rm, 0))
49 	{
50 	  puts ("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 ("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 (&re);
63 
64   return 0;
65 }
66