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root |
1.1 |
# By Brandon S. Allbery |
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# |
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# This library is no longer being maintained, and is included for backward |
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# compatibility with Perl 4 programs which may require it. |
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# |
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# In particular, this should not be used as an example of modern Perl |
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# programming techniques. |
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# |
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# Suggested alternative: Cwd |
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# |
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# |
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# Usage: $cwd = &getcwd; |
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sub getcwd |
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{ |
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local($dotdots, $cwd, @pst, @cst, $dir, @tst); |
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unless (@cst = stat('.')) |
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{ |
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warn "stat(.): $!"; |
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return ''; |
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} |
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$cwd = ''; |
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do |
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{ |
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$dotdots .= '/' if $dotdots; |
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$dotdots .= '..'; |
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@pst = @cst; |
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unless (opendir(getcwd'PARENT, $dotdots)) #')) |
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{ |
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warn "opendir($dotdots): $!"; |
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return ''; |
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} |
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unless (@cst = stat($dotdots)) |
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{ |
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warn "stat($dotdots): $!"; |
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closedir(getcwd'PARENT); #'); |
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return ''; |
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} |
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if ($pst[$[] == $cst[$[] && $pst[$[ + 1] == $cst[$[ + 1]) |
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{ |
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$dir = ''; |
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} |
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else |
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{ |
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do |
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{ |
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unless (defined ($dir = readdir(getcwd'PARENT))) #')) |
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{ |
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warn "readdir($dotdots): $!"; |
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closedir(getcwd'PARENT); #'); |
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return ''; |
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} |
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unless (@tst = lstat("$dotdots/$dir")) |
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{ |
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# warn "lstat($dotdots/$dir): $!"; |
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# closedir(getcwd'PARENT); #'); |
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# return ''; |
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} |
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} |
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while ($dir eq '.' || $dir eq '..' || $tst[$[] != $pst[$[] || |
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$tst[$[ + 1] != $pst[$[ + 1]); |
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} |
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$cwd = "$dir/$cwd"; |
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closedir(getcwd'PARENT); #'); |
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} while ($dir ne ''); |
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chop($cwd); |
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$cwd; |
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} |
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1; |
