[Tcl-bugs] [ tcl-Bugs-2385549 ] [file normalize] can't handle all "path" intreps

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Bugs item #2385549, was opened at 2008-12-03 19:29
Message generated for change (Comment added) made by dgp
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Category: 37. File System
Group: development: 8.6a4
Status: Open
Resolution: None
Priority: 9
Private: No
Submitted By: Don Porter (dgp)
Assigned to: Don Porter (dgp)
Summary: [file normalize] can't handle all "path" intreps

Initial Comment:

% file normalize dltest/..
/home/dgp/cvs/tcl/unix

% lindex [glob -types hidden dltest/..] 0
dltest/..
% file normalize [lindex [glob -types hidden dltest/..] 0]
/home/dgp/cvs/tcl/unix/dltest/..

The same string value gets treated
differently due to different intrep
history.

Fundamentally this is a flaw in
Tcl_FSGetNormalizedPath(), and is
the underlying cause of Bug 2378350
in the tclvfs project.

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>Comment By: Don Porter (dgp)
Date: 2008-12-03 19:46

Message:

Here's the corrected demo to show the
flaw on 8.4.19+ as well:

% file normalize dltest/..
/home/dgp/cvs/tcl8.4/unix
% lindex [glob -type hidden dltest/*] 1
dltest/..
% file normalize [lindex [glob -type hidden dltest/*] 1]
/home/dgp/cvs/tcl8.4/unix/dltest/..
% info patch
8.4.19


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Comment By: Don Porter (dgp)
Date: 2008-12-03 19:30

Message:

This same bug is present in all
active branches, 8.4, 8.5, 8.6,
but is more serious in 8.5+
because the troublesome intrep
is more widely used.


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