mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.7 KiB
57 lines
1.7 KiB
var assert = require("assert");
|
|
var spawn = require("child_process").spawn;
|
|
var fs = require('fs');
|
|
|
|
var myUid = process.getuid();
|
|
var myGid = process.getgid();
|
|
|
|
if (myUid != 0) {
|
|
console.error('must be run as root, otherwise the gid/uid setting will fail.');
|
|
process.exit(1);
|
|
}
|
|
|
|
// get a different user.
|
|
// don't care who it is, as long as it's not root
|
|
var passwd = fs.readFileSync('/etc/passwd', 'utf8');
|
|
passwd = passwd.trim().split(/\n/);
|
|
|
|
for (var i = 0, l = passwd.length; i < l; i ++) {
|
|
if (passwd[i].charAt(0) === "#") continue;
|
|
passwd[i] = passwd[i].split(":");
|
|
var otherName = passwd[i][0];
|
|
var otherUid = +passwd[i][2];
|
|
var otherGid = +passwd[i][3];
|
|
if (otherUid && otherUid !== myUid &&
|
|
otherGid && otherGid !== myGid &&
|
|
otherUid > 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (!otherUid && !otherGid) throw new Error('failed getting passwd info.');
|
|
|
|
console.error('name, id, gid = %j', [otherName, otherUid, otherGid]);
|
|
|
|
var whoNumber = spawn('id', [], { uid: otherUid, gid: otherGid });
|
|
var whoName = spawn('id', [], { uid: otherName, gid: otherGid });
|
|
|
|
whoNumber.stdout.buf = 'byNumber:';
|
|
whoName.stdout.buf = 'byName:';
|
|
whoNumber.stdout.on('data', onData);
|
|
whoName.stdout.on('data', onData);
|
|
function onData (c) { this.buf += c; }
|
|
|
|
whoNumber.on("exit", onExit);
|
|
whoName.on("exit", onExit);
|
|
|
|
function onExit (code) {
|
|
var buf = this.stdout.buf;
|
|
console.log(buf);
|
|
var expr = new RegExp("^(byName|byNumber):uid=" +
|
|
otherUid +
|
|
"\\(" +
|
|
otherName +
|
|
"\\) gid=" +
|
|
otherGid +
|
|
"\\(");
|
|
assert.ok(buf.match(expr), "uid and gid should match " + otherName);
|
|
}
|
|
|