-#define SSH_BUG_SIGBLOB 0x0001
-#define SSH_BUG_PKSERVICE 0x0002
-#define SSH_BUG_HMAC 0x0004
-#define SSH_BUG_X11FWD 0x0008
-#define SSH_OLD_SESSIONID 0x0010
-#define SSH_BUG_PKAUTH 0x0020
-#define SSH_BUG_DEBUG 0x0040
-#define SSH_BUG_BANNER 0x0080
-#define SSH_BUG_IGNOREMSG 0x0100
-#define SSH_BUG_PKOK 0x0200
-#define SSH_BUG_PASSWORDPAD 0x0400
-#define SSH_BUG_SCANNER 0x0800
-#define SSH_BUG_BIGENDIANAES 0x1000
-#define SSH_BUG_RSASIGMD5 0x2000
+#define SSH_BUG_SIGBLOB 0x00000001
+#define SSH_BUG_PKSERVICE 0x00000002
+#define SSH_BUG_HMAC 0x00000004
+#define SSH_BUG_X11FWD 0x00000008
+#define SSH_OLD_SESSIONID 0x00000010
+#define SSH_BUG_PKAUTH 0x00000020
+#define SSH_BUG_DEBUG 0x00000040
+#define SSH_BUG_BANNER 0x00000080
+#define SSH_BUG_IGNOREMSG 0x00000100
+#define SSH_BUG_PKOK 0x00000200
+#define SSH_BUG_PASSWORDPAD 0x00000400
+#define SSH_BUG_SCANNER 0x00000800
+#define SSH_BUG_BIGENDIANAES 0x00001000
+#define SSH_BUG_RSASIGMD5 0x00002000
+#define SSH_OLD_DHGEX 0x00004000
+#define SSH_BUG_NOREKEY 0x00008000
+#define SSH_BUG_HBSERVICE 0x00010000
+#define SSH_BUG_OPENFAILURE 0x00020000
+#define SSH_BUG_DERIVEKEY 0x00040000
+#define SSH_BUG_DUMMYCHAN 0x00100000
+#define SSH_BUG_EXTEOF 0x00200000
+#define SSH_BUG_K5USER 0x00400000
+
+void enable_compat13(void);
+void enable_compat20(void);
+void compat_datafellows(const char *);
+int proto_spec(const char *);
+char *compat_cipher_proposal(char *);