-check_host_in_hostfile(const char *filename, const char *host, Key *key,
- Key *found, int *line);
-
-/*
- * Appends an entry to the host file. Returns false if the entry could not
- * be appended.
- */
-int add_host_to_hostfile(const char *filename, const char *host, Key *key);
+check_host_in_hostfile(const char *, const char *, Key *, Key *, int *);
+int add_host_to_hostfile(const char *, const char *, Key *);
+int auth_rsa_read_key(char **, u_int *, BIGNUM *, BIGNUM *);