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I still can't find anything worthwhile to fix/address this. So I thought I'd give some simple instructions to recreate the problem and provide fuel for thought.
1. Create a directory in afs with the perms 'li' for your target user.
2. Login to AFS via an XP/2000 machine.
3. Copy a file into that folder. (It should be similar to a drop box)
If you do this on a 2000 machine it will succeed, however on an XP machine it will fail after creating a zero byte file.
Any help or suggestions would be appreciated. - -chris
On Jan 22, 2004, at 2:29 PM, Chris McClimans wrote:
I have directories in AFS used for students to submit assignments. The permissions for the students have previously been list and insert. This allowed for the students to drag and drop zip files into a write only (once) inbox folder.
However it appears that the XP Client (I'm not saying the AFS Client, I'm speaking about the logic of explorer.exe used by XP) first tests the ability to write to a file by 'touching' it in the unix sense and then trying to copy data into the file. Obviously this doesn't work if the users have only 'li' privileges to this folder, because once they 'insert' an zero byte file, they can't remove or modify that file.
I found a quick work around by adding permissions to allow user to write to existing files. 'liw' gives the users the ability to drag and drop into the inbox folder from the gui only once without being able to do it again. I'm not sure why it won't let them do it again, but I think this is because the GUI uses a logic of remove the old file, then copy a new one.
Anybody else see odd behavior like this or and have any suggestions? -chris
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