-/*
- * 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);
+int hostfile_read_key(char **, u_int *, Key *);
+HostStatus check_host_in_hostfile(const char *, const char *,
+ const Key *, Key *, int *);
+int add_host_to_hostfile(const char *, const char *, const Key *, int);
+int lookup_key_in_hostfile_by_type(const char *, const char *,
+ int, Key *, int *);
+
+#define HASH_MAGIC "|1|"
+#define HASH_DELIM '|'
+
+char *host_hash(const char *, const char *, u_int);