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bug#17997: md5sum adds a new line at the end of the input
From: |
Pádraig Brady |
Subject: |
bug#17997: md5sum adds a new line at the end of the input |
Date: |
Fri, 11 Jul 2014 16:45:03 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 |
tag 17997 notabug
close 17997
stop
On 07/11/2014 09:48 AM, address@hidden wrote:
> Hello,
>
> I implemented my own MD5 generator.
> It provides the same results as all the online MD5 generators, like for
> instance http://onlinemd5.com/.
>
> But it gives a different result than the GNU md5sum tool.
> So I investigated this : it seems that md5sum adds a newline at the end of
> the input !
>
> That is quite easy to test :
> - go to http://onlinemd5.com/, type "test" as text input. The MD5 sum is
> 098f6bcd4621d373cade4e832627b4f6
> - now type in a prompt : "echo test | md5sum". The MD5 sum is
> d8e8fca2dc0f896fd7cb4cb0031ba249
> - back to onlinemd5.com, type "test" and press enter to add a new line in the
> input. Now the MD5 sum is d8e8fca2dc0f896fd7cb4cb0031ba249 !!
>
> This behaviour was detected on RedHat Enterprise Linux 6.3 with GNU Coreutils
> 8.4.
> I was able to reproduce it using the latest 8.22 version (fresh build) on the
> same machine, and on CentOS 5.10 with Coreutils 5.97.
>
> Did someone know about this ?
echo adds the newline.
$ printf 'test' | md5sum
098f6bcd4621d373cade4e832627b4f6 -
thanks,
Pádraig.