*** io.c.orig	Wed Apr  3 13:26:53 1996
--- io.c	Wed Apr  3 15:13:25 1996
***************
*** 35,50 ****
  /* then if you defined UNIX you must use one of these ways to do non-blocking
   * tty reads
   */
! #define USE_FIONREAD
! /* #define USE_NDELAY */
  /* #define USE_ATTSELECT */
  /* #define USE_BSDSELECT */
  
  /* and then if you defined UNIX you must also use one of these ways to control
   * the tty modes.
   */
! #define USE_TERMIO
! /* #define USE_SGTTY */
  
  /* if you defined TURBO_C you might want this too if screen io looks garbled */
  /* #define USE_ANSISYS */
--- 35,50 ----
  /* then if you defined UNIX you must use one of these ways to do non-blocking
   * tty reads
   */
! /* #define USE_FIONREAD */
! #define USE_NDELAY
  /* #define USE_ATTSELECT */
  /* #define USE_BSDSELECT */
  
  /* and then if you defined UNIX you must also use one of these ways to control
   * the tty modes.
   */
! /* #define USE_TERMIO */
! #define USE_SGTTY
  
  /* if you defined TURBO_C you might want this too if screen io looks garbled */
  /* #define USE_ANSISYS */
***************
*** 199,209 ****
  	    seqa[0] = c;
  	    if (l > 1) {
  		extern unsigned alarm();
  		/* cautiously read rest of arrow sequence */
  		got_alrm = 0;
  		(void) signal (SIGALRM, on_alrm);
  		alarm(2);
! 		read (0, seqa+1, l-1);
  		alarm(0);
  		if (got_alrm)
  		    return (c);
--- 199,217 ----
  	    seqa[0] = c;
  	    if (l > 1) {
  		extern unsigned alarm();
+ 		int ch_read, ch_expected, seqa_i;
  		/* cautiously read rest of arrow sequence */
  		got_alrm = 0;
  		(void) signal (SIGALRM, on_alrm);
  		alarm(2);
! 		/* to make the arrow keys work with FreeBSD ... */
! 		ch_expected = l-1;
! 		seqa_i = 1;
! 		while ((ch_read = read (0, seqa+seqa_i, ch_expected)) > 0 &&
! 			ch_read < ch_expected) {
! 		    ch_expected -= ch_read;
! 		    seqa_i += ch_read;
! 		}
  		alarm(0);
  		if (got_alrm)
  		    return (c);