now-flow/src/providers/sh/util/dns.js

Add deployment workflows to Zeit now

// Packages
const dns = require('dns')

function resolve4(host) {
	return new Promise((resolve, reject) => {
		return dns.resolve4(host, (err, answer) => {
			if (err) {
				return reject(err)
			}

			resolve(answer)
		})
	})
}
module.exports = resolve4