--- .zfs/snapshot/2008-07-25/sys/libkern/gets.c	2006-01-14 21:45:02.000000000 +0100
+++ sys/libkern/gets.c	2008-07-25 16:45:59.854716504 +0200
@@ -32,12 +32,33 @@
 #include <sys/cons.h>
 #include <sys/libkern.h>
 
+static void ditch_duplicates(char *buf) {
+	char *p;
+	int duplicates;
+
+	p = buf;
+	duplicates = 0;
+
+	while (*p) {
+		if (*p == *(p+1)) {
+			bcopy(p+1, p, strlen(p));
+			duplicates++;
+		} else
+			p++;
+	}
+
+	if (duplicates)
+		printf("Ditched %d duplicates.\n", duplicates);
+}
+
 void
 gets(char *cp, size_t size, int visible)
 {
 	char *lp, *end;
 	int c;
+	char *buf;
 
+	buf = cp;
 	lp = cp;
 	end = cp + size - 1;
 	for (;;) {
@@ -47,12 +68,12 @@
 		case '\r':
 			printf("%c", c);
 			*lp = '\0';
+			ditch_duplicates(buf);
 			return;
 		case '\b':
 		case '\177':
 			if (lp > cp) {
-				if (visible)
-					printf("%c \b", c);
+				printf("%c \b", c);
 				lp--;
 			}
 			continue;
@@ -60,8 +81,7 @@
 			continue;
 		default:
 			if (lp < end) {
-				if (visible)
-					printf("%c", c);
+				printf("%c", visible ? c : '*');
 				*lp++ = c;
 			}
 		}