/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/config/fastcwd.pl

 1#!perl5
 2#
 3# ***** BEGIN LICENSE BLOCK *****
 4# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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16# The Original Code is mozilla.org code.
17#
18# The Initial Developer of the Original Code is
19# Netscape Communications Corporation.
20# Portions created by the Initial Developer are Copyright (C) 1998
21# the Initial Developer. All Rights Reserved.
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26# either of the GNU General Public License Version 2 or later (the "GPL"),
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38
39sub fastcwd {
40	local($odev, $oino, $cdev, $cino, $tdev, $tino);
41	local(@path, $path);
42	local(*DIR);
43
44	($cdev, $cino) = stat('.');
45	for (;;) {
46		($odev, $oino) = ($cdev, $cino);
47		chdir('..');
48		($cdev, $cino) = stat('.');
49		last if $odev == $cdev && $oino == $cino;
50		opendir(DIR, '.');
51		for (;;) {
52			$_ = readdir(DIR);
53			next if $_ eq '.';
54			next if $_ eq '..';
55
56			last unless $_;
57			($tdev, $tino) = lstat($_);
58			last unless $tdev != $odev || $tino != $oino;
59		}
60		closedir(DIR);
61		unshift(@path, $_);
62	}
63	chdir($path = '/' . join('/', @path));
64	$path;
65}
661;