/proc/*/cmdline corrupted

[Jon Clugston]

On Mon, Oct 17, 2011 at 12:47 PM, jan.kolar <kolar@math.cas.cz> wrote:
>
>
>> Jon Clugston wrote:
>> I tried to reproduce by creating long command lines to other commands
>> and none were corrupted.
> I tried two now.
> The first one turned out to be a script around xterm. :-(
> The second fails the test:
>  xwininfo.exe -display :0 -children &
>>>> tty0     00:00:00 xwininfo -children  -children
>
> The third fails as well:
>  xcalc -bg blue -fg green &
>>>> tty0     00:00:00 xcalc  blue -fg green
>
>
>> Does "xterm" step on its command line?
> If it can it does. Now (!sorry) I remember seeing that in nineties.

From some light code inspection on my part and more thorough
investigation from others here, it seems to be the X libraries
mangling the command lines of any X program that calls them (when they
use common parameters).  I would say this is a bug in the X libraries.
 I wouldn't expect cygwin to try to prevent this dubious practice by
application code.


Jon

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