extern void read_config_options(splay_tree_t *, const char *);
extern bool read_server_config(void);
extern bool read_connection_config(struct connection_t *);
+extern bool append_config_file(const char *, const char *, const char *);
extern FILE *ask_and_open(const char *, const char *, const char *);
extern bool is_safe_path(const char *);
extern bool disable_old_keys(FILE *);