}

type nssSource struct {
	source   string // e.g. "compat", "files", "mdns4_minimal"
	criteria []nssCriterion
}

// standardCriteria reports all specified criteria have the default
// status actions.
func (s nssSource) standardCriteria() bool {
	for i, crit := range s.criteria {
		if !crit.standardStatusAction(i == len(s.criteria)-1) {
			return false
		}
	}
	return true
}

	var hasDNSSourceChecked bool

	var filesSource, dnsSource bool
	var first string
	for i, src := range srcs {
		if src.source == "files" || src.source == "dns" {
			if canUseCgo && !src.standardCriteria() {
				// non-standard; let libc deal with it.
				return hostLookupCgo, dnsConf
			}
			if src.source == "files" {
				filesSource = true
			} else {
				hasDNSSource = true