GNU bug report logs - #5996
[PATCH] base64: always treat input in binary mode

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Yutaka Amanai <yasai-itame1942 <at> jade.plala.or.jp>
Subject: bug#5994: closed (Re: bug#5996: [PATCH] base64: always treat
 input in binary mode)
Date: Thu, 22 Apr 2010 17:53:02 +0000

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Your bug report

#5996: base64: I/O should be performed in binary-mode

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 5994 <at> debbugs.gnu.org.

-- 
5996: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5996
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Jim Meyering <jim <at> meyering.net>
To: Eric Blake <eblake <at> redhat.com>
Cc: 5996-done <at> debbugs.gnu.org
Subject: Re: bug#5996: [PATCH] base64: always treat input in binary mode
Date: Thu, 22 Apr 2010 19:52:14 +0200

Eric Blake wrote:
> On 04/22/2010 11:00 AM, Glenn Morris wrote:
>>
>> Hi,
>>
>> The following message got resent to bug-gnu-emacs rather than
>> bug-coreutils, because debbugs got confused.
>
> Well, my screw-up with To: fields means that my planned review period
> was delayed...
>
>>> Thanks for the report.  I'll commit this later today if there are no
>>> objections; it should have no impact for any platform that does not
>>> have O_BINARY, and although it is not perfect on Cygwin, it is not
>>> too much to add to my workload for creating the cygwin port of coreutils
>>> 8.5.  And someday I'll get around to creating the new gnulib interface
>>> for gracefully enforcing binary streams without clobbering O_APPEND.
>
> But I'd still like to commit this in time for coreutils 8.5 later today
> if there are no complaints.

That patch looks fine.
You're welcome to push it.  Thanks!

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From: Yutaka Amanai <yasai-itame1942 <at> jade.plala.or.jp>
To: bug-coreutils <at> gnu.org
Subject: base64: I/O should be performed in binary-mode
Date: Wed, 21 Apr 2010 18:46:23 +0900

base64 doesn't call freopen() nor setmode() against stdin, and doesn't
give "rb" flag to fopen(). So, base64 sometimes fails to encode data
correctly on some environment. For example, zsh on Cygwin forces stdin
to be text-mode.

Test case (zsh on Cygwin, filesystems are mounted as binary-mode):
$ printf '\x0D\x0A' > crlf-src
$ base64 < crlf-src | base64 -d > crlf-dst
$ cmp crlf-src crlf-dst
crlf-src crlf-dst differ: char 1, line 1

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