bug 351255 stop processing commands once we hit an error, to avoid using

cleared member variables
r=darin


git-svn-id: svn://10.0.0.236/trunk@209950 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/netwerk/protocol/ftp/src/nsFtpConnectionThread.cpp

@@ -150,7 +150,7 @@ nsFtpState::OnControlDataAvailable(const char *aData, PRUint32 aDataLen)
     buffer.Append(aData, aDataLen);
 
     const char* currLine = buffer.get();
-    while (*currLine) {
+    while (*currLine && mKeepRunning) {
         PRInt32 eolLength = strcspn(currLine, CRLF);
         PRInt32 currLineLength = strlen(currLine);