- Don't check outside of the array bounds

- Spotted by Marcelo Slomp <mslomp at linuxmail dot org>
See issue #3593 for more details.

svn path=/trunk/; revision=34892

reactos/base/services/tcpsvcs/chargen.c

@@ -74,7 +74,7 @@ GenerateChars(SOCKET sock)
             line[i] = chars[charIndex];
 
             /* if we hit the end char, reset it */
-            if (chars[charIndex] == chars[NUM_CHARS])
+            if (chars[charIndex] == chars[NUM_CHARS - 1])
                 charIndex = 0;
             else
                 charIndex++;