-extern bool read_connection_config(struct connection_t *);
-extern FILE *ask_and_open(const char *, const char *, const char *);
-extern bool is_safe_path(const char *);
-extern bool disable_old_keys(FILE *);
+extern bool read_host_config(splay_tree_t *, const char *);
+extern bool append_config_file(const char *, const char *, const char *);