1  /* Copyright (C) 1991-2023 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     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <mcheck.h>
      19  #include <stdio.h>
      20  #include <stdlib.h>
      21  #include <unistd.h>
      22  
      23  int
      24  main (void)
      25  {
      26    char *dir;
      27  
      28    /* Let this program be used for debugging.  */
      29    mtrace ();
      30  
      31    dir = getcwd ((char *) NULL, 0);
      32  
      33    if (dir == NULL)
      34      perror ("getcwd");
      35    else
      36      {
      37        puts (dir);
      38        free (dir);
      39      }
      40  
      41    return (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS);
      42  }