[Bug 422298] Re: dash interpreter don't handle some unicode characters correctly

[Wladimir Mutel]

This bug is more than 2 years old. Any hope to get it fixed in Precise ?

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https://bugs.launchpad.net/bugs/422298

Title:
  dash interpreter don't handle some unicode characters correctly

Status in “dash” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: dash

  The bug happens, in particular, when using Cyrillic letters "ш" and "с".
  To reproduce, open a terminal, cd /tmp (or somewhere else - this don't matter), type
  $ dash -c "name=прстуфхцчшщ;echo \$name > \$name"
  $ ls

  One would expect a file named прстуфхцчшщ to be created with contents,
  similar to it's name. However, instead of that ls shows a file, named
  пр?туфхцч?щ. Inside the file a proper string прстуфхцчшщ can be found.

  The wrong filename hexdump-s to the following:
  0000000 bfd0 80d1 d1d1 d182 d183 d184 d185 d186
  0000010 d187 89d1 000a                         
  On the other hand, the correct filename would hexdump to:
  0000000 bfd0 80d1 81d1 82d1 83d1 84d1 85d1 86d1
  0000010 87d1 88d1 89d1 000a      

  
  If bash is used instead of dash, the problem is not present.
  The bug is present on both jaunty x86 and jaunty x86_64.

  The bug is significant, because "dash" is a default "sh" interpreter for these systems. It is used by system("...") function. In particular, I found the bug while debugging my authomatic Python file-converting script, that failed on files with Cyrillic names, containing "с" and "ш".
  -----------------------------------------------------------------
  ivze at ubuntu-laptop:/tmp$ lsb_release -rd
  Description:	Ubuntu 9.04
  Release:	9.04

  Dash package version: 0.5.4-12ubuntu2

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