Fix Test Term Size

When running the build tests, the terminal size gets set to 0x0. When
then tests finish, things like vim start to misbehave until you change
your term window size.

1. Echoserver will not change the terminal size when in echo mode.
2. Do not update the modes when the echo server is not in echo mode.
3. Do not set the terminal update callback context when the echo server
   is not in echo mode.
4. Update the guards around the above three items to match the guards for
   the modes update function.

Author: ejohnstown

examples/echoserver/echoserver.c

@@ -862,24 +862,24 @@ static int ssh_worker(thread_ctx_t* threadCtx)
         ChildRunning = 1;
 #endif
 
-#if defined(WOLFSSH_TERM) && defined(WOLFSSH_SHELL)
-    /* set initial size of terminal based on saved size */
+#if !defined(NO_TERMIOS) && defined(WOLFSSH_TERM) && defined(WOLFSSH_SHELL)
 #if defined(HAVE_SYS_IOCTL_H)
-    wolfSSH_DoModes(ssh->modes, ssh->modesSz, childFd);
-    {
+    /* if not echoing, set initial size of terminal based on saved size */
+    if (!threadCtx->echo) {
         struct winsize s = {0,0,0,0};
 
+        wolfSSH_DoModes(ssh->modes, ssh->modesSz, childFd);
         s.ws_col = ssh->widthChar;
         s.ws_row = ssh->heightRows;
         s.ws_xpixel = ssh->widthPixels;
         s.ws_ypixel = ssh->heightPixels;
 
         ioctl(childFd, TIOCSWINSZ, &s);
-    }
-#endif /* HAVE_SYS_IOCTL_H */
 
         wolfSSH_SetTerminalResizeCtx(ssh, (void*)&childFd);
-#endif /* WOLFSSH_TERM && WOLFSSH_SHELL */
+    }
+#endif /* HAVE_SYS_IOCTL_H */
+#endif /* !NO_TERMIOS && WOLFSSH_TERM && WOLFSSH_SHELL */
 
         while (ChildRunning) {
             fd_set readFds;