Bug #11320: reopening stdio streams with non-ANSI filenames fails on Windows

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN

[cremno (cremno phobia)]

fname = 'ルビー'
File.write(fname, '')
p File.exist?(fname)
$stdin.reopen(fname, 'r')

It fails with Errno::ENOENT on Windows even though the file exists and is readable. It's caused by using freopen() (https://github.com/ruby/ruby/blob/v2_2_2/io.c#L6765). A wrapper that converts to UTF-16LE and then calls wfreopen() has to be added to win32/win32.c.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r51069.

---

io.c: reopen OS encoding path

• io.c (rb_io_reopen): freopen(3) with OS encoding path.
  [ruby-core:69780] [Bug #11320]
• win32/file.c (rb_freopen): wrapper of wchar version freopen(3).
  use _wfreopen_s() if available.