/* Test for memory handling in regex.

   Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.

   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 <sys/types.h>

#include <mcheck.h>

#include <regex.h>

#include <stdio.h>

#include <stdlib.h>

static const char text[] = "#! /bin/sh";

int

main (void)

{

  regex_t re;

  regmatch_t rm[2];

  int n;

  mtrace ();

  n = regcomp (&re, "^#! */.*/(k|ba||pdk|z)sh", REG_EXTENDED);

  if (n != 0)

    {

      char buf[500];

      regerror (n, &re, buf, sizeof (buf));

      printf ("regcomp failed: %s\n", buf);

      exit (1);

    }

  for (n = 0; n < 20; ++n)

    {

      if (regexec (&re, text, 2, rm, 0))

	{

	  puts ("regexec failed");

	  exit (2);

	}

      if (rm[0].rm_so != 0 || rm[0].rm_eo != 10

	  || rm[1].rm_so != 8 || rm[1].rm_eo != 8)

	{

	  printf ("regexec match failure: %d %d %d %d\n",

		  rm[0].rm_so, rm[0].rm_eo, rm[1].rm_so, rm[1].rm_eo);

	  exit (3);

	}

    }

  regfree (&re);

  return 0;

}