new six version M.Z.

tecs/sys_select.h

@@ -4,11 +4,17 @@
 #include <sys/time.h>
 
 int sys_select_or_key(fd_set *mask, int msecTmo, char *key);
-
-/* wait for read event on sockets included in mask or from keyboard or a timeout
+/*
+   wait for read event on sockets included in mask or from keyboard or a timeout
    result is negative for timeout,
    STDIN_FILENO for a key pressed,
    else socket number
+   switches the terminal to no-echo no-canonical 
+*/
+
+void sys_keys_off(void);
+/*
+   switch back terminal to normal state
 */
 
 #endif /* SYS_SELECT_H_ */