node/test/disabled/test-child-process-uid-gid.js
isaacs 3e1b1dd4a9 Remove excessive copyright/license boilerplate
The copyright and license notice is already in the LICENSE file.  There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
2015-01-12 15:30:28 -08:00

59 lines
1.7 KiB
JavaScript

var common = require('../common');
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);
}