http_auth_challenge_t
http_digest_auth(conn_t *conn, const char *hdr, http_auth_challenge_t *c,
http_auth_challenge_t *digest = NULL;
init_http_auth_challenge(http_auth_challenge_t *b)
clean_http_auth_challenge(http_auth_challenge_t *b)
http_auth_challenge_t *challenges[MAX_CHALLENGES];
malloc(sizeof(http_auth_challenge_t));