Feature #4712: File.writable? inaccurate in windows

• Status: Feedback
• Priority: Normal
• Assignee: -
• Target version: -

[rogerdpack (Roger Pack)]

Hello. Here's what happens (when a user doesn't have admin privileges in windows 7):

c:\Program Files (x86)\NetBeans 6.9.1>irb --simple-prompt

File.writable?('.')
=> true
File.writable?('./uninstall.exe')
=> true
File.open('./uninstall.exe', 'wb')
Errno::EACCES: Permission denied - ./uninstall.exe
from (irb):4:in initialize' from (irb):4:in open'
from (irb):4

So I think writable was returning true in error here.
Cheers!
-r

[usa (Usaku NAKAMURA)]

• ruby -v changed from ruby 1.9.2p180 (2011-02-18) [i386-mingw32] to -

Hello,

In message "[ruby-core:36228] [Ruby 1.9 - Bug #4712][Open] File.writable? inaccurate in windows"
on May.17,2011 02:04:06, [e-mail] wrote:

File.open('./uninstall.exe', 'wb')
Errno::EACCES: Permission denied - ./uninstall.exe
from (irb):4:in initialize' from (irb):4:in open'
from (irb):4

Please show us the result of attrib and cacls.

Regards,

U.Nakamura [e-mail]

[rogerdpack (Roger Pack)]

c:\Program Files (x86)\NetBeans 6.9.1>attrib uninstall.exe
A C:\Program Files (x86)\NetBeans 6.9.1\uninstall.exe

c:\Program Files (x86)\NetBeans 6.9.1>cacls uninstall.exe
c:\Program Files (x86)\NetBeans 6.9.1\uninstall.exe NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R

[usa (Usaku NAKAMURA)]

Thank you, Roger.

Currently we don't support NTFS ACLs.
This is the one of lacks of the important features, I think.
We shall support it someday.
The problem is who/when/how does it...

[usa (Usaku NAKAMURA)]

• Tracker changed from Bug to Feature

[rogerdpack (Roger Pack)]

Ok good to know.

[mame (Yusuke Endoh)]

• Status changed from Open to Assigned
• Assignee set to mame (Yusuke Endoh)

[mame (Yusuke Endoh)]

• Status changed from Assigned to Feedback
• Assignee deleted (mame (Yusuke Endoh))

Hello,

usa wrote:

The problem is who/when/how does it...

We need contribution. I mark this ticket as Feedback.

--
Yusuke Endoh [e-mail]

[mame (Yusuke Endoh)]

• Target version set to 2.6

[djberg96 (Daniel Berger)]

Use win32-file if you want a working File.writable? on Windows.

[naruse (Yui NARUSE)]

• Target version deleted (2.6)