sgetsave
static char *sgetsave(char *);
save.pw_name = sgetsave(p->pw_name);
save.pw_passwd = sgetsave(sp->sp_pwdp);
save.pw_passwd = sgetsave(p->pw_passwd);
save.pw_gecos = sgetsave(p->pw_gecos);
save.pw_dir = sgetsave(p->pw_dir);
save.pw_shell = sgetsave(p->pw_shell);