My documentation for "newc" is based primarily on studying the
implementation of GNU cpio. I've not found any good
references for the history of this format.
OK, this is good to know. I'm not saying one or the other program is
wrong, but having a piece of documentation describing an
implementation is of course not the same as a standard.
POSIX considers cpio to be deprecated, so there's
no chance that POSIX will ever formally standardize
any cpio format variant other than the "odc" variant
documented under "pax."
LSB documents this format since it's used by RPM.
That's the only "de jure" standard I've found that
discusses this particular cpio variant. Unfortunately,
the LSB documentation for this format is pretty
incomplete. It certainly doesn't discuss hardlink
handling.
The "de facto" standard for this format would be
the implementation of cpio that originally shipped
with SVr4. I don't know if SVr4 includes any
documentation for the format apart from the implementation
itself. I don't have access to SVr4 source code.
Cheers,
Tim Kientzle
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