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+/*
+ * Dropbear SSH
+ * 
+ * Copyright (c) 2002,2003 Matt Johnston
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE. */
+
+#ifndef _LISTENER_H
+#define _LISTENER_H
+
+#define MAX_LISTENERS 20
+#define LISTENER_EXTEND_SIZE 1
+
+struct Listener {
+
+	int socks[DROPBEAR_MAX_SOCKS];
+	unsigned int nsocks;
+
+	int index; /* index in the array of listeners */
+
+	void (*acceptor)(struct Listener*, int sock);
+	void (*cleanup)(struct Listener*);
+
+	int type; /* CHANNEL_ID_X11, CHANNEL_ID_AGENT, 
+				 CHANNEL_ID_TCPDIRECT (for clients),
+				 CHANNEL_ID_TCPFORWARDED (for servers) */
+
+	void *typedata;
+
+};
+
+void listeners_initialise();
+void handle_listeners(fd_set * readfds);
+void set_listener_fds(fd_set * readfds);
+
+struct Listener* new_listener(int socks[], unsigned int nsocks, 
+		int type, void* typedata, 
+		void (*acceptor)(struct Listener* listener, int sock), 
+		void (*cleanup)(struct Listener*));
+
+struct Listener * get_listener(int type, void* typedata,
+		int (*match)(void*, void*));
+
+void remove_listener(struct Listener* listener);
+
+#endif /* _LISTENER_H */