UnixAgent: fix exception in StopUnixSocket

If UnixAgent.StopUnixSocket is called without haveing ever started, we would get a null reference exception.
dlech · May 24, 2022 · 8475d22 · 8475d22
1 parent 0724a5d
commit 8475d22
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/SshAgentLib/UnixAgent.cs b/SshAgentLib/UnixAgent.cs
@@ -103,13 +103,18 @@ public void StartUnixSocket(string socketPath)
 
         public void StopUnixSocket()
         {
+            if (listener == null) {
+                return;
+            }
+
             // work around mono bug. listener.Dispose() should delete file, but it
             // fails because there are null chars appended to the end of the filename
             // for some reason.
             // See: https://bugzilla.xamarin.com/show_bug.cgi?id=35004
             var socketPath = ((UnixEndPoint)listener.LocalEndpoint).Filename;
             var nullTerminatorIndex = socketPath.IndexOf('\0');
             listener.Dispose();
+
             if (nullTerminatorIndex > 0)
             {
                 try