[Bug 10979] Re: unzip does not support UTF-8 filenames

[Vladimir Skvortsov]

*** This bug is a duplicate of bug 580961 ***
    https://bugs.launchpad.net/bugs/580961

Ubuntu 12.10 (UI with US English-UTF-8 codepage)

It seems if you KNOW from which SW platform zip file comes from and
codepage, you can successfully unzip the archive without loosing non-
ASCII filenames not encoded in UTF-8.

I just did one experiment to unpack zip file that has been created in
Korean Windows 7 and contains the Korean characters in both zip archive
name and compressed files.

First let's get a local-specific info:

$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

Let's check the version of unzip utility:

$ unzip --help
UnZip 6.00 of 20 April 2009, by Debian. Original by Info-ZIP.
...
Usage: unzip [-Z] [-opts[modifiers]] file[.zip] [list] [-x xlist] [-d exdir]
Default action is to extract files in list, except those in xlist, to exdir;
file[.zip] may be a wildcard. -Z => ZipInfo mode ("unzip -Z" for usage).
...
-O CHARSET specify a character encoding for DOS, Windows and OS/2 archives
-I CHARSET specify a character encoding for UNIX and other archives

Look at options with the following modifier:

-O CHARSET specify a character encoding for DOS, Windows and OS/2
archives

It is not -"zero", it is -O (capital O letter)!

In my case Korean Windows has EUC-KR codepage. The compressed zip-file
has "2013년 설날" file name.

It means my command line will look like:

$ unzip -O EUC-KR "2013년 설날"

After checking unpacked files, it works! All files have right Korean
encoding without strange characters.

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https://bugs.launchpad.net/bugs/10979

Title:
  unzip does not support UTF-8 filenames

Status in File Roller:
  New
Status in “unzip” package in Ubuntu:
  Confirmed
Status in “unzip” package in Debian:
  Confirmed
Status in “unzip” package in Gentoo Linux:
  Fix Released
Status in “unzip” package in Mandriva:
  Confirmed

Bug description:
  when unzip extract filename , unzip handle with 7 bit filename.
  so filenames with non-latin1 characters are broken.

  I described in gentoo bugzilla #69945. and reported zip-bug form.

  http://bugs.gentoo.org/show_bug.cgi?id=69945:
  http://bugs.gentoo.org/show_bug.cgi?id=69945

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