skeychallenge2
int skeychallenge2(int, struct skey *, char *, char *);
return (skeychallenge2(-1, mp, name, ss));
haskey = (skeychallenge2(fd, &skey, user, challenge) == 0);
haskey = (skeychallenge2(fd, &skey, user, challenge) == 0);
haskey = (skeychallenge2(fd, &skey, user, challenge) == 0);