src\node_buffer.cc:173: Assertion `arg->IsNumber()' failed.

[U-siro]

• Version: v11.0.0-nightly20181007061e09891c

• Platform:
  

• Subsystem:

LazerBancho server listening on port 443
LazerBancho NonSecure server listening on port 80
DNS service has started
Connected to MySQL, BeatmapHelper will work now
vortex.data.microsoft.com
ops.dgsrz.com
sending49.165.223.140
Windows PowerShell[23292]: src\node_buffer.cc:173: Assertion `arg->IsNumber()' failed.
 1: 00007FF78D76B1C5
 2: 00007FF78D7443C6
 3: 00007FF78D744491
 4: 00007FF78D72DEE1
 5: 00007FF78D72F069
 6: 00007FF78DB6945E
 7: 00007FF78DB6A980
 8: 00007FF78DB69959
 9: 00007FF78DB6983B
10: 000000B88F550861
PS D:\Data\github\nosuelazer2> node -v
v11.0.0-nightly20181007061e09891c
PS D:\Data\github\nosuelazer2> winver
PS D:\Data\github\nosuelazer2>

I tried to use updns npm module, but this error happens.
But It isn't module bugs, because It works correctly on Node v8.
Also It's native error, so I don't have any idea other than bugs.
If It isn't bug, tell me how to fix it. Thanks!

[bzoz]

Could you provide a sample code that reproduces that?

[U-siro]

Better bet is see updns code. @beoz

module.exports.updnsMiddleware = (app, handlers) => {

 app.on('error', error => {
 console.log(error)
 })
 
 app.on('listening', server => {
 console.log('DNS service has started')
 })

 app.on('message', (domain, send, proxy) => {
 let osuDomains = [
 'android.bugly.qq.com'
 ]
 console.log(domain)
 if(osuDomains.indexOf(domain.toString()) > -1){
 handlers.getIp(null, (osuIp, mirrorIp) => {
 console.log('sending' + osuIp)
 send(osuIp)
 })
 } else {
 proxy('1.1.1.1') // Other traffics
 }
 })
}
let app=updns.createServer(53)
updnsMiddleware(app)

[bzoz]

Yeah, a repro without using updns would be helpful, since most likely this is an issue with the package itself. The same error can be achieved by misusing Buffer API:

Buffer.alloc(1).copy(Buffer.alloc(1), 'err')

[U-siro]

@bzoz Thanks for your comment! However, I think that shouldn't Native error, but a syntax error. :)

[U-siro]

Thanks @addaleax !!