Re: Cannot set date of a symlink using FSSetCatalogInfo()?
Re: Cannot set date of a symlink using FSSetCatalogInfo()?
- Subject: Re: Cannot set date of a symlink using FSSetCatalogInfo()?
- From: James Bucanek <email@hidden>
- Date: Tue, 21 Mar 2006 07:29:30 -0700
Sorry, this was supposed to go to the Carbon-Dev list.
That's what you get for trying to track down bugs late at night.
James
James Bucanek wrote on Monday, March 20, 2006:
>Here's my conundrum:
>
>I'm writing a document archiving and backup utility and I'm having some difficulty restoring symbolic link files.
>Here's the problem.
>
>(1) I create a plain file and write the contents of the symbolic link.
>
>(2) As long as the file is a regular file, I can use FSSetCatalogInfo to change it's permissions, modification
>date, etc.
>
>(3) As per bug 2796751, I then use FSpSetFInfo() to change the file to a symbolic link by setting it's type/creator
>to 'slnk'/'rhap'.
>
>(4) Once it is a symbolic link[1], I can no longer use FSSetCatalogInfo() to set its modification or creation
>dates. I can, however, use FSSetCatalogInfo() to set other aspects of the file, such as its owner and group IDs.
>
>The kicker is that FSpSetFInfo() touches the file! If I set the file's modification and creation date in step 2, it
>works. But as soon as I change it into a symlink its modification date gets changed to today and I can't set it
>anymore.
>
>Is this a know bug? Does anyone know of a workaround?
>
>[1] I also ran into another bug/oddity: Once you chage a file into a symlink, the FSRef for the file is no longer
>usable for much of anything. The solution is to generate a new FSRef for the file following the call to
>FSpSetFInfo().
>
--
James Bucanek
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