From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff King <peff@peff.net>
Subject: Re: Solaris test failure for git-1.5.4.4 -- t0021-conversion.sh
Date: Wed, 12 Mar 2008 08:48:25 -0400
Message-ID: <20080312124825.GA8447@coredump.intra.peff.net>
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Cc: Whit Armstrong <armstrong.whit@gmail.com>,
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To: Junio C Hamano <gitster@pobox.com>
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On Wed, Mar 12, 2008 at 08:43:36AM -0400, Jeff King wrote:

> It seems that /usr/bin/tr silently removes NULs from the input stream:
> 
>   $ printf 'foo\000bar' | xxd
>   0000000: 666f 6f00 6261 72                        foo.bar
>   $ printf 'foo\000bar' | /usr/bin/tr '\000' 'Q' | xxd
>   0000000: 666f 6f62 6172                           foobar
> 
> I don't think there is an easy way around this; we might have to switch
> to using perl.

Even more exciting, /usr/bin/tr actually works going the opposite
direction, but /usr/ucb/tr doesn't:

  $ echo x | /usr/bin/tr x '\000' | xxd
  0000000: 000a                                     ..
  $ echo x | /usr/ucb/tr x '\000' | xxd
  0000000: 780a                                     x.

but other characters seem to work:

  $ echo x | /usr/ucb/tr x '\012' | xxd
  0000000: 0a0a                                     ..

-Peff