D17816: Support for xattrs on kio copy/move

[Kamil Dudka]

kdudka added a comment.


  I am fine with kio implementing things differently as long as the basic functionality keeps working.  I used to use Krusader to get images out of my camera and it simply stopped working for me with no obvious indication of what went wrong.  This code tries to implement some advanced error handling, yet it is written in a way that it passed a review with a fundamental programming mistake in the basic error handling.
  
  The fix proposed in https://phabricator.kde.org/D17816#677448 is incomplete, as I understand it.  If we break the loop with `valuelen == -1`, the value will be passed as `size_t` to the `size` argument of `fsetxattr()`, which may lead to reading `value.constData()` out of bounds.

REVISION DETAIL
  https://phabricator.kde.org/D17816

To: arrowd, dfaure, chinmoyr, bruns, #frameworks, tmarshall, usta, cochise
Cc: kdudka, usta, scheirle, tmarshall, arrowd, cfeck, bruns, phidrho, dhaumann, funkybomber, abika, pino, davidedmundson, ngraham, atha.kane, spoorun, nicolasfella, kde-frameworks-devel, LeGast00n, cblack, michaelh
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