shadow

type Shadow struct {
	Name       string // login username
	Password   string // encrypted password
	LastChange int64  // Date of last change since 1970-01-01
	MinDays    int64  // Min # of days between changes
	MaxDays    int64  // Max # of days between changes
	Warn       int64  // # of dayd before password expires to warn user to change it
	Inactive   int64  // # of days after password expires until account is disabled
	Expire     int64  // Date when account expires since 1970-01-01
	Flag       uint64 // reserved
}

type UserNotFoundError struct {
	Name string
	Uid  uint32
}