--- sane-backends-1.0.12/backend/canon-sane.c.badcode	2003-10-08 09:42:22.000000000 +0100
+++ sane-backends-1.0.12/backend/canon-sane.c	2003-10-08 09:42:51.000000000 +0100
@@ -1919,8 +1919,8 @@
       for (p = buf; p < buf + nread; p++)
 	{
 	  b = *p;
-	  *p++ = *(p + 1);
-	  *p = b;
+	  *p = *(p + 1);
+	  *++p = b;
 	}
     }
   *len = nread;