contrib/cvs-1.12/lib/xgetcwd.c

   1 /* xgetcwd.c -- return current directory with unlimited length
   2
   3    Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 /* Written by Jim Meyering.  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include "xgetcwd.h"
  26
  27 #include <errno.h>
  28 #include <unistd.h>
  29
  30 #include "xalloc.h"
  31
  32 /* Return the current directory, newly allocated.
  33    Upon an out-of-memory error, call xalloc_die.
  34    Upon any other type of error, return NULL.  */
  35
  36 char *
  37 xgetcwd (void)
  38 {
  39   char *cwd = getcwd (NULL, 0);
  40   if (! cwd && errno == ENOMEM)
  41     xalloc_die ();
  42   return cwd;
  43 }