diff --git a/usr.bin/script/script.1 b/usr.bin/script/script.1
index 3aa03e55e279..cd3f800c051d 100644
--- a/usr.bin/script/script.1
+++ b/usr.bin/script/script.1
@@ -166,3 +166,12 @@ The slave terminal mode is checked
 for ECHO mode to check when to avoid manual echo logging.
 This does not
 work when in a raw mode where the program being run is doing manual echo.
+.Pp
+If the
+.Nm
+reads zero bytes from the terminal it switches to a mode when it probes read
+only once a second until it gets some data.
+This prevents the
+.Nm
+spinning on zero-byte reads, but might cause a 1-second delay in
+processing of the user input.
diff --git a/usr.bin/script/script.c b/usr.bin/script/script.c
index ad9972170bc1..ea5a1f6ca04f 100644
--- a/usr.bin/script/script.c
+++ b/usr.bin/script/script.c
@@ -86,6 +86,7 @@ main(int argc, char *argv[])
 	char ibuf[BUFSIZ];
 	fd_set rfd;
 	int flushtime = 30;
+	int readstdin;
 
 	aflg = kflg = 0;
 	while ((ch = getopt(argc, argv, "aqkt:")) != -1)
@@ -155,19 +156,21 @@ main(int argc, char *argv[])
 		doshell(argv);
 	close(slave);
 
-	if (flushtime > 0)
-		tvp = &tv;
-	else
-		tvp = NULL;
-
-	start = time(0);
-	FD_ZERO(&rfd);
+	start = tvec = time(0);
+	readstdin = 1;
 	for (;;) {
+		FD_ZERO(&rfd);
 		FD_SET(master, &rfd);
-		FD_SET(STDIN_FILENO, &rfd);
-		if (flushtime > 0) {
-			tv.tv_sec = flushtime;
+		if (readstdin)
+			FD_SET(STDIN_FILENO, &rfd);
+		if ((!readstdin && ttyflg) || flushtime > 0) {
+			tv.tv_sec = !readstdin && ttyflg ? 1 :
+			    flushtime - (tvec - start);
 			tv.tv_usec = 0;
+			tvp = &tv;
+			readstdin = 1;
+		} else {
+			tvp = NULL;
 		}
 		n = select(master + 1, &rfd, 0, 0, tvp);
 		if (n < 0 && errno != EINTR)
@@ -176,8 +179,13 @@ main(int argc, char *argv[])
 			cc = read(STDIN_FILENO, ibuf, BUFSIZ);
 			if (cc < 0)
 				break;
-			if (cc == 0)
-				(void)write(master, ibuf, 0);
+			if (cc == 0) {
+				if (tcgetattr(master, &stt) == 0 &&
+				    (stt.c_lflag & ICANON) != 0) {
+					(void)write(master, &stt.c_cc[VEOF], 1);
+				}
+				readstdin = 0;
+			}
 			if (cc > 0) {
 				(void)write(master, ibuf, cc);
 				if (kflg && tcgetattr(master, &stt) >= 0 &&