if (GETPWNAM(name) != NULL)
errx(EX_DATAERR, "login name `%s' already exists", name);
if (!grname)
grname = cmdcnf->default_group;
pwd = &fakeuser;
pwd->pw_name = name;
pwd->pw_class = cmdcnf->default_class ? cmdcnf->default_class : "";