source: trip-planner-front/node_modules/isexe/mode.js@ 8d391a1

Last change on this file since 8d391a1 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 909 bytes
Line 
1module.exports = isexe
2isexe.sync = sync
3
4var fs = require('fs')
5
6function isexe (path, options, cb) {
7 fs.stat(path, function (er, stat) {
8 cb(er, er ? false : checkStat(stat, options))
9 })
10}
11
12function sync (path, options) {
13 return checkStat(fs.statSync(path), options)
14}
15
16function checkStat (stat, options) {
17 return stat.isFile() && checkMode(stat, options)
18}
19
20function checkMode (stat, options) {
21 var mod = stat.mode
22 var uid = stat.uid
23 var gid = stat.gid
24
25 var myUid = options.uid !== undefined ?
26 options.uid : process.getuid && process.getuid()
27 var myGid = options.gid !== undefined ?
28 options.gid : process.getgid && process.getgid()
29
30 var u = parseInt('100', 8)
31 var g = parseInt('010', 8)
32 var o = parseInt('001', 8)
33 var ug = u | g
34
35 var ret = (mod & o) ||
36 (mod & g) && gid === myGid ||
37 (mod & u) && uid === myUid ||
38 (mod & ug) && myUid === 0
39
40 return ret
41}
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