getspnam
extern struct spwd* getspnam(const char* name);
if (verify_password(pwd, getspnam(login), password))
struct spwd* spwd = getspnam(user);
struct spwd* spwd = getspnam(user);
if (authenticate_user("old password: ", passwd, getspnam(user), 1,
if ((sp = getspnam(name)) == NULL)
struct spwd *shadowpwd = getspnam(username);