/* xgetcwd.c -- return current directory with unlimited length
- Copyright (C) 1992, 1996, 2000, 2001 Free Software Foundation, Inc.
+
+ Copyright (C) 1992, 1996, 2000, 2001, 2003, 2004 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
#include <stdio.h>
#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
-
#include <sys/types.h>
+#include <stdlib.h>
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#endif
#include "xalloc.h"
+#include "xgetcwd.h"
-/* Return the current directory, newly allocated, arbitrarily long.
- Return NULL and set errno on error. */
+/* Return the current directory, newly allocated, assuming it fits
+ within PATH_MAX bytes -- this is a common system-imposed limit
+ on how getcwd works.
+ Upon an out-of-memory error, call xalloc_die.
+ Upon any other type of error, return NULL. */
char *
-xgetcwd ()
+xgetcwd (void)
{
#if HAVE_GETCWD_NULL
char *cwd = getcwd (NULL, 0);