Bug #9699: Cannot require .so file on Windows if the file path is unicode (Includes patch)

• Status: Closed
• Assignee: windows
• Target version: 2.2.0
• ruby -v: 2.0.0 and later
• Backport: 2.0.0: REQUIRED, 2.1: DONE

[BugraB (Bugra Barin)]

It doesn't seem possible to load a C extension that is inside a non-ascii path.
To reproduce:

• Extract the attached zip file (with a decent unzip program such as 7-zip, that preserves unicode paths)
• cd to where you extracted
• launch irb
• require './foo.rb' (All this does is require a simple so file inside the folder 'てすと')
• You'll see a failure

The culprit is in function dln_load, it uses the ANSI version of LoadLibrary and passes in the char* path given to the function. My patch converts it to wide char and uses LoadLibraryW. I have assumed that the given path is UTF-8 encoded, which seems to work but I am not sure if this is a safe assumption.

I hope the patch is in the right format, I wasn't sure. Thanks for your time!
Bugra

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r45523.

---

dln.c: non-ascii path on Windows

• dln.c (dln_load): use wchar version to load a library in
  non-ascii path on Windows. based on the patch by Bugra Barin
  in [ruby-core:61845]. [Bug #9699]

[thomthom (Thomas Thomassen)]

Can this patch be back ported to Ruby 2.1 or 2.0?

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.0.0: REQUIRED, 2.1: REQUIRED

[for branch maintainers]
r45523 depends on a new function introduced at r45521.
And test script was fixed at r45551.

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: REQUIRED, 2.1: REQUIRED to 2.0.0: REQUIRED, 2.1: DONE

r45521, r45523 and r45551 were backported into ruby_2_1 at r46450.

[usa (Usaku NAKAMURA)]

• Related to Bug #8676: ruby 2.0 can not require or load the source file with non-ascii path name added

[usa (Usaku NAKAMURA)]

memo:
this fix requires at least r42183 (see #8676) for ruby_2_0_0.