Bug 1885 - System.IO.DriveInfo.GetDrives() returns DriveInfo objects with strings '\0' terminated.
Summary: System.IO.DriveInfo.GetDrives() returns DriveInfo objects with strings '\0' t...
Status: RESOLVED FIXED
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib ()
Version: 2.10.x
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2011-11-04 15:12 UTC by ea
Modified: 2012-01-20 21:51 UTC (History)
2 users (show)

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

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report on GitHub or Developer Community with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:
Status:
RESOLVED FIXED

Description ea 2011-11-04 15:12:12 UTC
It seems like the strings are not being marshaled properly to Mono string types, when evaluating the individual items of the returned strings you find '\0'.

It is problematic to evaluate the contents strings of the DriveInfo objects returned by DriveInfo.GetDrives().  

The lengths of the string don’t match the content of the string making any kind of c# comparison useless. Comparisons always return false, and switch statements on this string values will only match the 'default' case.

Example:

DriveInfo[] dInfo =DriveInfo.GetDrives();
int len = dInfo[0].DriveFormat.Length;

In my case dInfo[0].DriveFormat shows a vaue of "hfs", but the length of the string is 13.

The following statement is always false: (dInfo[0].DriveFormat == "hfs")
Comment 1 Zoltan Varga 2012-01-20 21:51:07 UTC
Fixed in HEAD/2.10.