--- cci/sys/stand/prf.c	2019/07/28 12:24:19	1.1
+++ cci/sys/stand/prf.c	2019/07/28 12:29:50	1.1.1.2
@@ -8,6 +8,8 @@
 #define COUTADR	0xf1000		/* Dummy screen 	-,,-	  */
 #endif
 
+int	wait_for_char = 1;
+
 /*
  * Scaled down version of C Library printf.
  * Used to print diagnostic information directly on console tty.
@@ -199,21 +201,34 @@ simin(addr)
 
 getchar()
 {
+	static	char_read = 0;
 	char	c;
 
-	cpin.cp_hdr.cp_unit = CPCONS;	/* Resets done bit */
-	cpin.cp_hdr.cp_comm = CPREAD;
-	cpin.cp_hdr.cp_count = 1;
-	mtpr(&cpin, CPMDCB);
+	if(!char_read) {
+		char_read = 1;
+		cpin.cp_hdr.cp_unit = CPCONS;	/* Resets done bit */
+		cpin.cp_hdr.cp_comm = CPREAD;
+		cpin.cp_hdr.cp_count = 1;
+		mtpr(&cpin, CPMDCB);
 #ifdef SIMIO
-	simin(&cpin);
+		simin(&cpin);
 #endif
-	while ((cpin.cp_hdr.cp_unit & CPDONE) == 0) 
-		uncache (&cpin.cp_hdr.cp_unit);
+	}
+	uncache (&cpin.cp_hdr.cp_unit);
+	if(wait_for_char) {
+		while ((cpin.cp_hdr.cp_unit & CPDONE) == 0) 
+			uncache (&cpin.cp_hdr.cp_unit);
+	}
+	else {
+		if((cpin.cp_hdr.cp_unit & CPDONE) == 0)
+			return 0;
+	}
 	uncache (&cpin.cpi_buf[0]);
 	c = cpin.cpi_buf[0] & 0x7f;
+	char_read = 0;
 	if (c == '\r')  c = '\n';
-	putchar(c);
+	if(c != '\b')
+		putchar(c);
 	return(c);
 }
 #endif
@@ -222,32 +237,42 @@ getchar()
 gets(buf)
 	char *buf;
 {
-	register char *lp;
-	register c;
+	static char	line[256];
+	static char	*lp = line;
+	register	c;
 
-	lp = buf;
+	*buf = '\0';
 	for (;;) {
-		c = getchar() & 0177;
 	store:
+		c = getchar() & 0177;
 		switch(c) {
+		case '\0' :
+			if(!wait_for_char)
+				return;
+			break;
 		case '\n':
 		case '\r':
 			c = '\n';
-			*lp++ = '\0';
+			*lp = '\0';
+			strcpy(buf, line);
+			lp = line;
 			return;
 		case '\b':
+			if (lp > line)
+				putchar('\b');
 		case '#':
 			lp--;
-			if (lp < buf)
-				lp = buf;
+			if (lp < line)
+				lp = line;
 			continue;
 		case '@':
 		case 'u'&037:
-			lp = buf;
+			lp = line;
 			putchar('\n');
 			continue;
 		default:
-			*lp++ = c;
+			if((lp - line) < 256)
+				*lp++ = c;
 		}
 	}
 }