Commit | Line | Data |
---|---|---|
55204971 LW |
1 | # By Brandon S. Allbery |
2 | # | |
a6d71656 GS |
3 | # This library is no longer being maintained, and is included for backward |
4 | # compatibility with Perl 4 programs which may require it. | |
6e373246 S |
5 | # This legacy library is deprecated and will be removed in a future |
6 | # release of perl. | |
a6d71656 GS |
7 | # In particular, this should not be used as an example of modern Perl |
8 | # programming techniques. | |
9 | # | |
10 | # Suggested alternative: Cwd | |
6e373246 | 11 | |
a6d71656 | 12 | # |
55204971 LW |
13 | # Usage: $cwd = &getcwd; |
14 | ||
15 | sub getcwd | |
16 | { | |
17 | local($dotdots, $cwd, @pst, @cst, $dir, @tst); | |
18 | ||
19 | unless (@cst = stat('.')) | |
20 | { | |
21 | warn "stat(.): $!"; | |
22 | return ''; | |
23 | } | |
24 | $cwd = ''; | |
25 | do | |
26 | { | |
27 | $dotdots .= '/' if $dotdots; | |
28 | $dotdots .= '..'; | |
29 | @pst = @cst; | |
30 | unless (opendir(getcwd'PARENT, $dotdots)) #')) | |
31 | { | |
32 | warn "opendir($dotdots): $!"; | |
33 | return ''; | |
34 | } | |
35 | unless (@cst = stat($dotdots)) | |
36 | { | |
37 | warn "stat($dotdots): $!"; | |
38 | closedir(getcwd'PARENT); #'); | |
39 | return ''; | |
40 | } | |
859172fe | 41 | if ($pst[0] == $cst[0] && $pst[1] == $cst[1]) |
55204971 LW |
42 | { |
43 | $dir = ''; | |
44 | } | |
45 | else | |
46 | { | |
47 | do | |
48 | { | |
c2960299 | 49 | unless (defined ($dir = readdir(getcwd'PARENT))) #')) |
55204971 LW |
50 | { |
51 | warn "readdir($dotdots): $!"; | |
52 | closedir(getcwd'PARENT); #'); | |
53 | return ''; | |
54 | } | |
e334a159 | 55 | unless (@tst = lstat("$dotdots/$dir")) |
55204971 | 56 | { |
55497cff | 57 | # warn "lstat($dotdots/$dir): $!"; |
58 | # closedir(getcwd'PARENT); #'); | |
59 | # return ''; | |
55204971 LW |
60 | } |
61 | } | |
859172fe Z |
62 | while ($dir eq '.' || $dir eq '..' || $tst[0] != $pst[0] || |
63 | $tst[1] != $pst[1]); | |
55204971 LW |
64 | } |
65 | $cwd = "$dir/$cwd"; | |
66 | closedir(getcwd'PARENT); #'); | |
1f997daf | 67 | } while ($dir ne ''); |
55204971 LW |
68 | chop($cwd); |
69 | $cwd; | |
70 | } | |
71 | ||
72 | 1; |