module.exports = isexe isexe.sync = sync

var fs = require('fs')

function isexe (path, options, cb) {

fs.stat(path, function (er, stat) {
  cb(er, er ? false : checkStat(stat, options))
})

}

function sync (path, options) {

return checkStat(fs.statSync(path), options)

}

function checkStat (stat, options) {

return stat.isFile() && checkMode(stat, options)

}

function checkMode (stat, options) {

var mod = stat.mode
var uid = stat.uid
var gid = stat.gid

var myUid = options.uid !== undefined ?
  options.uid : process.getuid && process.getuid()
var myGid = options.gid !== undefined ?
  options.gid : process.getgid && process.getgid()

var u = parseInt('100', 8)
var g = parseInt('010', 8)
var o = parseInt('001', 8)
var ug = u | g

var ret = (mod & o) ||
  (mod & g) && gid === myGid ||
  (mod & u) && uid === myUid ||
  (mod & ug) && myUid === 0

return ret

}