Put ssh back into the repository

Change-Id: I23324372188fa6ed3f93a32b84365f5df6367590
diff --git a/sshpty.h b/sshpty.h
new file mode 100644
index 0000000..cfa3224
--- /dev/null
+++ b/sshpty.h
@@ -0,0 +1,27 @@
+/* $OpenBSD: sshpty.h,v 1.12 2010/01/09 05:04:24 djm Exp $ */
+
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ * Functions for allocating a pseudo-terminal and making it the controlling
+ * tty.
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+
+#include <termios.h>
+
+struct termios *get_saved_tio(void);
+void	 leave_raw_mode(int);
+void	 enter_raw_mode(int);
+
+int	 pty_allocate(int *, int *, char *, size_t);
+void	 pty_release(const char *);
+void	 pty_make_controlling_tty(int *, const char *);
+void	 pty_change_window_size(int, u_int, u_int, u_int, u_int);
+void	 pty_setowner(struct passwd *, const char *);