[Toybox] [New toy] rudimentary cpio version (argh, wrong file)

[ibid.ag at gmail.com]

On Mon, Sep 30, 2013 at 08:50:13PM -0700, ibid.ag at gmail.com wrote:
> I've finally gotten 'cpio' into a shape where it could be useable.
> This version can archive and extract directories, sockets, FIFOs, devices, 
> symlinks, and regular files.
> Supported options are -iot, -H FMT (which is a dummy right now).
> It only writes newc, and could read newc or newcrc.
> 
> This does NOT implement -d, which essentially is equivalent to 
> mkdir -p $(dirname $FILE)
> for every file that needs it.
> Hard links are not supported, though it would be easy to add them given
> a hash table or something like that.
> I also have not implemented the "<n> blocks" output on stderr.
> If desired, I can add it pretty simply.
> 
> There is one assumption this makes: that the mode of a file, as mode_t,
> is bitwise equivalent to the mode as defined for the cpio format.
> This is true of Linux, but is not mandated by POSIX.
> If it is compiled for a system where that is false, the archives will
> not be portable.
> 
> I still haven't cleaned up loopfiles_stdin.

Argh. I grabbed the wrong file. Let's try again.

Thanks,
Isaac Dunham

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