/*
 * realpwd.cc: Part of GNU CSSC.
 * 
 * 
 *    Copyright (C) 1997,1999, Free Software Foundation, Inc. 
 * 
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 * 
 *    This program 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 General Public License for more details.
 * 
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
 * 
 * Program for getting the canonical form of the current directory.
 */

#include "../config.h"

#ifdef STDC_HEADERS
#include <stddef.h>
#include <assert.h>
#endif

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_STRING_H
#include <string.h>
#endif


static const char *
get_current_directory()
{
  size_t len = 1;
  char *p;

  for (;;)
    {
      if (NULL != (p = new char[len]))
        {
          if ( NULL != getcwd(p, len) ) // success!
            {
              return p;
            }
          else
            {
              len *= 2;         // try a larger buffer.
            }
          delete[] p;
        }
      else                      // allocation failed.
        {
          return ".";   // this is a cop-out really.
        }      
    }
}



int main(int argc, char *argv[])
{
  const char newline[1] = { '\n' };
  const char *dir = get_current_directory();
  write(1, dir, strlen(dir));
  write(1, newline, 1);
  return 0;
}