extern int consttime_memeq(const void *s1, const void *s2, size_t n);
+void hash_hash(const struct hash_if *hashi, const void *msg, int32_t len,
+ uint8_t *digest /* hi->hlen bytes */);
+
const char *iaddr_to_string(const union iaddr *ia);
int iaddr_socklen(const union iaddr *ia);