Misleading values in returned object when the cable is unplugged or the host doesn't exist

[lucamarogna]

Writing these tests:

console.log( await ping.promise.probe('fakehostdoesntexist.com') );
// Manually unplug the cable...
console.log( await ping.promise.probe('google.com') );

both result in:

{
  host: 'unknown',
  alive: false,
  output: '',
  time: 'unknown',
  times: [],
  min: 'unknown',
  max: 'unknown',
  avg: 'unknown',
  stddev: 'unknown',
  packetLoss: 'unknown'
}

(the latter happen only when the network cable is unplugged)

I think it should have at least the host property setted to the actual host pinged. Not sure for other properties as ping implementation may vary depending on platforms (I'm on Ubuntu 18.04.3).

[mondwan]

Since node-ping relies on underlying system command implementation, data reflects what it can be fetch from the system's command.

In your case, since you have unplugged the cable before running probe, I guess ping returns only error message about network device is gone or etc. No hostname can be fetched as as result.

Actually, both cases fall into same fact that node-ping cannot fetch messages from the underlying system command. We can do not much in this scenario.

[lucamarogna]

Ok that's totally fine.

For me, it would be better to have the host value because I'm running several promises in parallel (Promise.all()) and I didn't know which has failed (e.g. "fakehostdoesntexist.com"), but I do catch your point.

Thank you for your response and explanation.

[mondwan]

For your case, how about adding a key, say, userInputHost in the response object.

Therefore, we have around 3 keys talking about hosts but with subtle difference:

• userInputHost: As title, host inputted from user
• host: Host parsed from the system command
• numeric_host: Host parsed, if possible, from the system command in a numeric format

Hopefully, it can address your issue

[mondwan]

You can checkout this new implementation in the master branch on github.

[HughDai]

For your case, how about adding a key, say, userInputHost in the response object.

Therefore, we have around 3 keys talking about hosts but with subtle difference:

• userInputHost: As title, host inputted from user
• host: Host parsed from the system command
• numeric_host: Host parsed, if possible, from the system command in a numeric format

Hopefully, it can address your issue

I don't find this commit in the latest npm version v0.4.0 . Could you please check it, thanks a lot.

[mondwan]

as marked in #136, hopefully, I tag it wrongly. Try 0.4.1. It should be correct now

hugh @.***> 於 2021年4月7日週三 下午8:03寫道：

For your case, how about adding a key, say, userInputHost in the response object.

Therefore, we have around 3 keys talking about hosts but with subtle difference:

• userInputHost: As title, host inputted from user
• host: Host parsed from the system command
• numeric_host: Host parsed, if possible, from the system command in a numeric format

Hopefully, it can address your issue

I don't find this commit in the latest npm version v0.4.0 . Could you please check it, thanks a lot.

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