Cygwin 3.7 wishlist: read/write NTFS alternate data streams via openat(O_XATTR)

[Corinna Vinschen]

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----- Forwarded message from Martin Wege via Cygwin <cygwin@cygwin.com> -----

> Date: Mon, 24 Mar 2025 15:25:46 +0100
> From: Martin Wege via Cygwin <cygwin@cygwin.com>
> Subject: Cygwin 3.7 wishlist: read/write NTFS alternate data streams via
> 	openat(O_XATTR)
> To: cygwin@cygwin.com
> Reply-To: Martin Wege <martin.l.wege@gmail.com>
> 
> Hello,
> 
> another wishlist entry (old one):
> read/write NTFS alternate data streams via openat(O_XATTR)
> 
> Opening individual streams might be easy, as Corinna pointed out that
> cygwin_attach_handle_to_fd() can be used for that (i.e. open stream,
> and attach handle to fd via cygwin_attach_handle_to_fd()), but the
> virtual XATTR dir might be a challenge (beyond my skill at least).
> 
> Thanks,
> Martin
> 
> ---------- Forwarded message ---------
> From: Martin Wege <martin.l.wege@gmail.com>
> Date: Thu, Nov 30, 2023 at 4:55 AM
> Subject: Cygwin tools to read/write NTFS alternate data streams?
> To: <cygwin@cygwin.com>
> 
> 
> Hello,
> 
> Does Cygwin have tools (modified /usr/bin/dd ?) to read/write NTFS
> alternate data streams?
> 
> Thanks,
> Martin
> 
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