Initial revision
diff --git a/channels.h b/channels.h
new file mode 100644
index 0000000..9794ef5
--- /dev/null
+++ b/channels.h
@@ -0,0 +1,41 @@
+/* RCSID("$Id: channels.h,v 1.1 1999/10/27 03:42:44 damien Exp $"); */
+
+#ifndef CHANNELS_H
+#define CHANNELS_H
+
+/* Definitions for channel types. */
+#define SSH_CHANNEL_FREE		0 /* This channel is free (unused). */
+#define SSH_CHANNEL_X11_LISTENER	1 /* Listening for inet X11 conn. */
+#define SSH_CHANNEL_PORT_LISTENER	2 /* Listening on a port. */
+#define SSH_CHANNEL_OPENING		3 /* waiting for confirmation */
+#define SSH_CHANNEL_OPEN		4 /* normal open two-way channel */
+#define SSH_CHANNEL_CLOSED		5 /* waiting for close confirmation */
+/*	SSH_CHANNEL_AUTH_FD		6    authentication fd */
+#define SSH_CHANNEL_AUTH_SOCKET		7 /* authentication socket */
+/*	SSH_CHANNEL_AUTH_SOCKET_FD	8    connection to auth socket */
+#define SSH_CHANNEL_X11_OPEN		9 /* reading first X11 packet */
+#define SSH_CHANNEL_INPUT_DRAINING	10 /* sending remaining data to conn */
+#define SSH_CHANNEL_OUTPUT_DRAINING	11 /* sending remaining data to app */
+
+/* Data structure for channel data.  This is iniailized in channel_allocate
+   and cleared in channel_free. */
+
+typedef struct Channel
+{
+  int type;		/* channel type/state */
+  int self;		/* my own channel identifier */
+  int remote_id;	/* channel identifier for remote peer */
+			/* peer can be reached over encrypted connection, via packet-sent */
+  int istate;
+  int ostate;
+  int x11;
+  int sock;		/* data socket, linked to this channel */
+  Buffer input;		/* data read from socket, to be sent over encrypted connection */
+  Buffer output;	/* data received over encrypted connection for send on socket */
+  char path[200];	/* path for unix domain sockets, or host name for forwards */
+  int listening_port;	/* port being listened for forwards */
+  int host_port;	/* remote port to connect for forwards */
+  char *remote_name;	/* remote hostname */
+} Channel;
+
+#endif