[Rpm-maint] [RFC][PATCH] Large file support

[Michael Schroeder]

[some long time ago...]

On Wed, Sep 09, 2009 at 04:42:01PM +0200, Florian Festi wrote:
> A much simpler alternative would be to use a slightly modified cpio 
> format. With a new magic for large files we could just put an binary 
> integer into the c_filesize field (or all integer fields). Another 
> solution could be to keep the hexadecimal encoding and just double the 
> c_filesize or even some more integer fields.
> This will both render the payload incompatible with cpio if there are 
> large files (and only then).

Why does it need to be incompatible? How about saving oversized files
in multiple parts. All but the last part would have size 0xffffffff.

E.g. /tmp/longfile would be archived as:
- cpio header size = 0xffffffff name=/tmp/longfile
- cpio header size = 0x123      name=/tmp/longfile.part2

When rpm's cpio unpack sees a file with size 0xffffffff it knows
that it is just a part and skips the next cpio header + filename.

Cheers,
  Michael.

-- 
Michael Schroeder                                   mls at suse.de
SUSE LINUX Products GmbH, GF Markus Rex, HRB 16746 AG Nuernberg
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