does ftpd allow cyrillic filenames?
Rob Landley
rob at landley.net
Sat Mar 13 02:17:45 UTC 2010
On Friday 12 March 2010 13:12:30 Vladimir Dronnikov wrote:
> Hi!
>
> Does anybody try to push to BB ftpd file/dir containing non-latin1
> letters in the name?
> IOW, is the subj true?
In my static binaries (built with FWL's sources/trimconfig-busybox) I'm setting
CONFIG_FEATURE_ASSUME_UNICODE=n so busybox itself might but the prebuilt
binaries (and the stuff I'm building in FWL, which I know you've been poking at
on other lists) might not.
I don't remember why that's set. The build was breaking at some point on some
platform, but that could easily have been due to a bug in a previous version
of busybox that's since been fixed.
At the same time, I don't think that's going to affect ftpget and ftpput.
Those should treat the filename as just a blob, and UTF-8 (the only sane way to
do internationalization) uses groups of high-ascii characters to represent
stuff beyond the first 127 ascii characters, which everything else that doesn't
understand it just treats as verbatim data. It should never introduce a
spurious / or whitespace or newline or NULL...
There were two epic threads on this on linux-kernel back in 2004. The first
starts here:
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0273.html
And the second starts here:
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0143.html
And it's really worth reading them all. (The first thread is mostly about why
case insensitivity doesn't belong in the kernel, which is fascinating and
amazingly educational when Tridge and Linus argue back and forth about it, but
not really the topic at hand. The second is why utf-8 is the only sane
international encoding format for Unix systems.)
However, if you don't have time, here's a number of Linus Torvalds'
contributions (and remember he learned English as something like his third
language):
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0144.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0165.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0173.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0214.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0223.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0386.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0396.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0473.html
http://lkml.indiana.edu/hypermail/linux/kernel/0402.2/0472.html
I vaguely recall there was more than this, but can't track 'em down right
now...
Anyway, what _might_ be happening is that ftpget/ftpput are handling them just
fine... but the command shell isn't, and thus you can't list the arguments
correctly on the command line...
Rob
--
Latency is more important than throughput. It's that simple. - Linus Torvalds
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