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Re: Resource Fork as Extended Attributes
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Re: Resource Fork as Extended Attributes


  • Subject: Re: Resource Fork as Extended Attributes
  • From: Toby Thain <email@hidden>
  • Date: Thu, 16 Jul 2009 10:26:31 -0400


On 15-Jul-09, at 10:28 PM, Chris Suter wrote:

Hi Toby,

On Thu, Jul 16, 2009 at 12:10 PM, Toby Thain<email@hidden> wrote:

Does that mean HFS+ now supports arbitrary number of forks rather that
just data fork + resource fork' ? And arbitrary number of forks can be accessed
by getxattr and friends ?

Has done for quite some time. HFS+ shipped with MacOS 8.1 - in 1998.

If by “quite some time”, you mean since 10.4 and with limitations, you’re right. However, they’ve certainly not been supported since Mac OS 8.1.


Looking deeper, I find the API for named forks has been available since 9.0 but eventually I found the apparently undocumented restriction that it only works with the 2 'standard' forks, at least until recently.

--T


Kind regards,

Chris

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References: 
 >Resource Fork as Extended Attributes (From: shailesh jain <email@hidden>)
 >Re: Resource Fork as Extended Attributes (From: Anton Altaparmakov <email@hidden>)
 >Re: Resource Fork as Extended Attributes (From: shailesh jain <email@hidden>)
 >Re: Resource Fork as Extended Attributes (From: Toby Thain <email@hidden>)
 >Re: Resource Fork as Extended Attributes (From: Chris Suter <email@hidden>)

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