[Mono-bugs] [Bug 77636][Wis] New - Mono.Unix.Native.Syscall.stat() returns random modes on dangling symlinks

[bugzilla-daemon at bugzilla.ximian.com]

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by mondalaci at gmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=77636

--- shadow/77636	2006-02-24 10:20:09.000000000 -0500
+++ shadow/77636.tmp.23210	2006-02-24 10:20:09.000000000 -0500
@@ -0,0 +1,83 @@
+Bug#: 77636
+Product: Mono: Class Libraries
+Version: 1.1
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: Mono.POSIX
+AssignedTo: miguel at ximian.com                            
+ReportedBy: mondalaci at gmail.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Mono.Unix.Native.Syscall.stat() returns random modes on dangling symlinks
+
+Description of Problem:
+
+Using the Mono.Unix.Native.Syscall.stat(string, out Stat) method returns
+random mode fields with each individual execution of the process.
+
+
+Steps to reproduce the problem:
+
+1. Put the code below in the file "stat-test.cs" and compile it.
+
+using System;
+using MUN = Mono.Unix.Native;
+
+public class StatTest {
+    public static void Main(string[] argv)
+    {
+	if (argv.Length == 0) {
+	    Console.WriteLine("You gotta give the filename to stat, dude.");
+	    System.Environment.Exit(1);
+	}
+
+	string filename = argv[0];
+
+	MUN.Stat stat;
+	MUN.Syscall.stat(filename, out stat);
+
+        Console.WriteLine(stat.st_mode & MUN.FilePermissions.S_IFMT);
+    }
+}
+
+2. Create a dangling symlink: `ln -s random-stupid-filename dangling-link'
+
+3. Execute the code: mono ./stat-test.exe dangling-link
+
+
+Actual Results:
+
+The stat() call returns random mode values.  Here is the output of 10
+individual executions from the command line in sequence:
+
+S_IFIFO, S_IFDIR
+S_IFIFO, S_IFDIR
+S_IFCHR
+S_IFMT
+S_IFIFO, S_IFLNK
+S_IFLNK
+S_IFBLK
+S_IFSOCK
+S_IFDIR
+S_IFCHR
+
+
+Expected Results:
+
+stat() should return a correct mode value every time consistently.
+
+
+How often does this happen? 
+
+See above.
+
+
+Additional Information:
+
+None.