-/* $OpenBSD: channels.h,v 1.65 2002/03/04 17:27:39 stevesk Exp $ */
+/* $OpenBSD: channels.h,v 1.67 2002/03/26 22:50:39 markus Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
#define CHAN_CLOSE_SENT 0x01
#define CHAN_CLOSE_RCVD 0x02
+#define CHAN_EOF_SENT 0x04
+#define CHAN_EOF_RCVD 0x08
+
+/* check whether 'efd' is still in use */
+#define CHANNEL_EFD_INPUT_ACTIVE(c) \
+ (compat20 && c->extended_usage == CHAN_EXTENDED_READ && \
+ (c->efd != -1 || \
+ buffer_len(&c->extended) > 0))
+#define CHANNEL_EFD_OUTPUT_ACTIVE(c) \
+ (compat20 && c->extended_usage == CHAN_EXTENDED_WRITE && \
+ ((c->efd != -1 && !(c->flags & (CHAN_EOF_RCVD|CHAN_CLOSE_RCVD))) || \
+ buffer_len(&c->extended) > 0))
/* channel management */