lyft / lyft/Kronos-Android

Allow set custom port for NTP server

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Dominant language
Kotlin
Stars
287
Forks
17
PR merge metrics
No merged PRs in 30d

Description

Hi,
your `SntpClient.java` has hardcoded NTP port.
https://github.com/lyft/Kronos-Android/blob/master/kronos-java/src/main/java/com/lyft/kronos/internal/ntp/SntpClient.java#L91

Sometimes is useful host custom NTP server on different then well known (blocked) port.

What about parse port for NTP server from `host` using `:` as separator and `NTP_PORT` as fallback?
Define `host` like `host := "hostname[:port]"` where `hostname` is string containing DNS or IP address of target NTP server and optional `port` for target listening port number.

Right before dns resolve(`InetAddress address = dnsResolver.resolve(host);`).

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  4. Open a pull request that references the issue number.

Research direction

Start in kronos-java/src/main/java/com/lyft/kronos/internal/ntp/SntpClient.java at the DNS resolution point referenced in the issue. Review how the host is passed to dnsResolver.resolve and how NTP_PORT is used, then verify that a host with an optional port uses that port while a host without one retains the fallback behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
networking
Issue type
Feature
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
55/100

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