1 /* vi: set sw=4 ts=4: */
3 * bb_simplify_path implementation for busybox
5 * Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
11 char* FAST_FUNC bb_simplify_abs_path_inplace(char *start)
18 if (*s == '/') { /* skip duplicate (or initial) slash */
22 if (s[1] == '/' || !s[1]) { /* remove extra '.' */
25 if ((s[1] == '.') && (s[2] == '/' || !s[2])) {
28 while (*--p != '/') /* omit previous dir */
38 if ((p == start) || (*p != '/')) { /* not a trailing slash */
39 ++p; /* so keep last character */
45 char* FAST_FUNC bb_simplify_path(const char *path)
52 p = xrealloc_getcwd_or_warn(NULL);
53 s = concat_path_file(p, path);
57 bb_simplify_abs_path_inplace(s);