| * xgetcwd.c -- return current directory with unlimited length |
| * Copyright (C) 1992, 1996 Free Software Foundation, Inc. |
| * Written by David MacKenzie <djm@gnu.ai.mit.edu>. |
| * Special function for busybox written by Vladimir Oleynik <vodz@usa.net> |
| /* Amount to increase buffer size by in each try. */ |
| /* Return the current directory, newly allocated, arbitrarily long. |
| Return NULL and set errno on error. |
| If argument is not NULL (previous usage allocate memory), call free() |
| path_max = (unsigned) PATH_MAX; |
| path_max += 2; /* The getcwd docs say to do this. */ |
| cwd = xmalloc (path_max); |
| while ((ret = getcwd (cwd, path_max)) == NULL && errno == ERANGE) { |
| cwd = xrealloc (cwd, path_max); |