Bug 391195

Summary:	sys-apps/coreutils-8.7 md5sum (and sha256sum) binary and text mode shows similiar results for DOS text file
Product:	Gentoo Linux	Reporter:	Sergey S. Starikoff <Ikonta>
Component:	[OLD] Core system	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED INVALID
Severity:	minor
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Sergey S. Starikoff 2011-11-21 08:49:03 UTC

It seems, that, accepting traditional options (-b and -t), for cross-platform compatibility these utils always works in binary mode.

Reproducible: Always

Steps to Reproduce:
1. Get (copy ino temporary test dir) a text file. For example /etc/make.conf.
2. Convert it into DOS text format ($ unix2dos make.conf); 
3. Calculate ckechsums in binary mode:
$ md5sum -b make.conf 
6c0880c485075df4ccf84d80856f424a *make.conf
4. Calculate checksums in text mode:
$ md5sum -t make.conf 
6c0880c485075df4ccf84d80856f424a  make.conf

Actual Results:  
Compare them and find matching (differs only in mode flag in filename).

Expected Results:  
Either the results should not match or utils should not declare different modes (manual page is outdated?).

Comment 1 Alex Legler (RETIRED) archtester

2011-11-21 09:04:27 UTC

From the md5sum info page:

`--binary'
     Treat each input file as binary, by reading it in binary mode and
     outputting a `*' flag.  This is the inverse of `--text'.  On
     systems like GNU that do not distinguish between binary and text
     files, this option merely flags each input file as binary: the MD5
     checksum is unaffected. [...]

The man page does not contradict this.