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--- io.c.orig Sat Mar 14 23:22:07 1992
+++ io.c Sun Jan 21 20:46:00 2007
@@ -28,6 +28,17 @@
* need to #define VMS since it is inherent in the compiler.
*/
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+
+static on_alrm();
+static chk_arrow (register char c);
+static tload();
+static char *egetstr (char *name, char **sptr);
+static setuptty();
+
+
/* unless you are on VMS define one of these... */
#define UNIX
/* #define TURBO_C */
@@ -35,16 +46,16 @@
/* 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_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 */
+/* #define USE_TERMIO */
+#define USE_SGTTY
/* if you defined TURBO_C you might want this too if screen io looks garbled */
/* #define USE_ANSISYS */
@@ -199,11 +210,19 @@
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);
- read (0, seqa+1, l-1);
+ /* 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);
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