https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221224

--- Comment #1 from Leonard K├Ânig <leonard.r.koe...@googlemail.com> ---
i actually does get increased in line 172 so it does actually count the number
of sequences of slashes in the locale string (correctly).

But while this works, setting i to 1 within a loop that doesn't use i is very
confusing (as is the rest of the code).

But even while i correctly counts the number of slashes it silently assumes
that slashes are only used as separators between locales in a compound locale
-- leading and trailing slashes are thus also counted which results in eg.
"/1/2/3/4/5/6" to be seen as having 6 slashes (correct) but 6+1 locales
(incorrect) in line 164 and also the first locale to be set to "/", the second
to "1/" and the 6th to "5/".

Ie: setlocale(LC_ALL, "/1/2/3/4/5/6") calls strlcpy(new_categories[i], locale,
len+1) with:

 i | locale         | len+1 | (new) categories[i]
---|----------------|-------|---------------------
 1 | "/1/2/3/4/5/6" | 1     | "/"
 2 | "1/2/3/4/5/6"  | 2     | "1/"
 3 | "2/3/4/5/6"    | 2     | "2/"
 4 | "3/4/5/6"      | 2     | "3/"
 5 | "4/5/6"        | 2     | "4/"
 6 | "5/6"          | 2     | "5/"

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