lib/xgetcwd.c

   1 /* xgetcwd.c -- return current directory with unlimited length
   2
   3    Copyright (C) 2001, 2003-2004, 2006-2007, 2009-2018 Free Software
   4    Foundation, Inc.
   5
   6    This program is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  18
  19 /* Written by Jim Meyering.  */
  20
  21 #include <config.h>
  22
  23 #include "xgetcwd.h"
  24
  25 #include <errno.h>
  26 #include <unistd.h>
  27
  28 #include "xalloc.h"
  29
  30 /* Return the current directory, newly allocated.
  31    Upon an out-of-memory error, call xalloc_die.
  32    Upon any other type of error, return NULL.  */
  33
  34 char *
  35 xgetcwd (void)
  36 {
  37   char *cwd = getcwd (NULL, 0);
  38   if (! cwd && errno == ENOMEM)
  39     xalloc_die ();
  40   return cwd;
  41 }