Bug 12892 - Path.GetFullPath() Windows Bug
Summary: Path.GetFullPath() Windows Bug
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib ()
Version: master
Hardware: PC Windows
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2013-06-26 07:55 UTC by Tal Aloni
Modified: 2013-06-28 15:33 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

A program that demonstrates the issue (1.34 KB, text/plain)
2013-06-26 08:06 UTC, Tal Aloni

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Description Tal Aloni 2013-06-26 07:55:55 UTC
The implementation of Path.GetFullPath() Does not use the GetFullPathName Windows API call.
As a result, When the argument is 'C:' or 'D:' or similar, for any drive other than the current drive, Mono will return the root folder instead of the current directory on the specified drive.

Steps to reproduce the problem:
1. Launch cmd.exe
2. Switch drive to D: ('CD D:')
3. Enter some directory ('CD dir1')
4. Go Back to C: and launch a program containing the lines:

Actual Results:

Expected Results:

The expected result is consistent with the Micsrosoft.Net Framework.

How often does this happen? 
Comment 1 Tal Aloni 2013-06-26 08:06:46 UTC
Created attachment 4203 [details]
A program that demonstrates the issue
Comment 2 Tal Aloni 2013-06-28 15:33:41 UTC
A fix was committed to Master at 2013-06-28.