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Number   :  2633
Date     :  2002-08-09
Author   :  Kan Yabumoto
Subject  :  Re: Path Length
Size(KB) :  1



XXCOPY does check the total pathname length before it uses it
so that it does not create an error condition that might
cause some "internal" damage. I guess the Win32 (Win95/98 and
Win NT/2K/XP) environments are quite robust with this regard.
But in DOS, it is well known that when an application program
(such as XXCOPY16) passes a path string that is beyond the
limit (79 characters + the terminating null byte), the syste
will crash. For this reason, XXCOPY does check the path
length before its use and generate a specific error message
for that. Therefore, when you have any doubt about a
strange behavior, you can be assured that XXCOPY will never
pass a path that is longer than what is permitted by the system.

Having said that, XXCOPY does not have a mechanism to report
the full length of a given path, either for a file name or
a directory name.

On the other hand, if you want to use XXCOPY to convert
a path name into fully expanded path string from another
form of pathname, it can do so.

E.g.,

Input: ..\xyz\*.log

command:

xxcopy ..\xyz\*.log /LL // list full path

The output will be a fully expanded path of any file
that matches the pattern. You may save the output into
a list file to a text file by adding /fo.
It will be up to you to count the line length of each
line of the output file. But, it does not generate
the number(s) you are interested in.

Kan Yabumoto
===============================================================

At 2002-08-08 06:01, you wrote:
>Is it possible to use XXCOPY to calculate the path length of files & 
>folders? If so, how. If not, does anyone know of a utility that can do this?
>Thanks.



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