--- netkit-telnet-0.17.orig/telnet/defines.h
+++ netkit-telnet-0.17/telnet/defines.h
@@ -50,3 +50,5 @@
 #define	MODE_COMMAND_LINE(m)	((m)==-1)
 
 #define	CONTROL(x)	((x)&0x1f)		/* CTRL(x) is not portable */
+
+#define MODE_OUT8	0x8000			/* binary mode sans -opost */