1 /* xgetcwd.c -- return current directory with unlimited length
2 Copyright (C) 1992 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
18 /* Written by David MacKenzie, djm@gnu.ai.mit.edu. */
21 #if defined (CONFIG_BROKETS)
22 /* We use <config.h> instead of "config.h" so that a compilation
23 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
24 (which it would do because it found this file in $srcdir). */
36 #include <sys/types.h>
39 #if !defined(_POSIX_VERSION) && !defined(HAVE_GETCWD)
41 #define getcwd(buf, max) getwd (buf)
46 /* Amount to increase buffer size by in each try. */
53 /* Return the current directory, newly allocated, arbitrarily long.
54 Return NULL and set errno on error. */
64 path_max = (unsigned) PATH_MAX;
65 path_max += 2; /* The getcwd docs say to do this. */
67 cwd = xmalloc (path_max);
70 while ((ret = getcwd (cwd, path_max)) == NULL && errno == ERANGE)
72 path_max += PATH_INCR;
73 cwd = xrealloc (cwd, path_max);
79 int save_errno = errno;