Fix UDS graceful restart for unix-dgram numeric errcodes

[KeenanLawrenceStitch]

Summary

udsGracefulErrorHandling never recreates the socket on hot-shots ≥14 when using unix-dgram, because protocolErrorHandler compares err.code against string codes only ('ENOTCONN', …), while unix-dgram sets err.code to a negative numeric errno (e.g. -107 / -111 on Linux, -39 / -54 on Darwin).

This is the UDS follow-on to #301 / #302: the TCP string-code fix was correct for Node TCP sockets, but the same change broke UDS matching.

Fix

Minimal change in udsErrors(): keep the existing string codes and also include the negative numeric errnos that unix-dgram emits.

// linux
return ['ENOTCONN', 'ECONNREFUSED', -107, -111];
// darwin
return ['EDESTADDRREQ', 'ECONNRESET', -39, -54];

Test plan

• npm install
• npm test — 1957 passing
• Updated test/constants.js assertions for numeric codes
• CI on this PR

Related

Follow-up to #301 / #302 (UDS path).

Made with Cursor

[bdeitte]

Thanks- I see as well now this is broken and this looks like a good fix for me. I'm going to make a few additions here on top of this you'll see here shortly, but this is good to merge. Thanks again!

[KeenanLawrenceStitch]

Awesome, thanks @bdeitte!