NET-329 TelnetInoutStream#__read() bug in the __receiveState handling for the _STATE_IAC state.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/branches/NET_2_0@962952 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/main/java/org/apache/commons/net/telnet/TelnetInputStream.java

@@ -194,12 +194,12 @@ private int __read(boolean mayBlock) throws IOException
                 /* TERMINAL-TYPE option (end)*/
                 case TelnetCommand.IAC:
                     __receiveState = _STATE_DATA;
-                    break;
+                    break; // exit to enclosing switch to return IAC from read
                 default:
-                    break;
+                    __receiveState = _STATE_DATA;           
+                    continue; // move on the next char, i.e. ignore IAC+unknown
                 }
-                __receiveState = _STATE_DATA;
-                continue;
+                break; // exit and return from read
             case _STATE_WILL:
                 synchronized (__client)
                 {