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dgram: add custom lookup function in sockets #14560

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merged 1 commit into from
Aug 3, 2017
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cjihrig
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@cjihrig cjihrig commented Aug 1, 2017

This commit adds support for custom DNS lookup functions in dgram sockets. This is similar to the existing feature in net sockets.

Refs: #6189

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines
Affected core subsystem(s)

dgram

@nodejs-github-bot nodejs-github-bot added the dgram Issues and PRs related to the dgram subsystem / UDP. label Aug 1, 2017
@Trott
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Trott commented Aug 1, 2017

semver-minor?

@cjihrig cjihrig added the semver-minor PRs that contain new features and should be released in the next minor version. label Aug 1, 2017
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cjihrig commented Aug 1, 2017

Yes, added the label. Thanks.

* `reuseAddr` {boolean} When `true` [`socket.bind()`][] will reuse the
address, even if another process has already bound a socket on it. Optional.
Defaults to `false`.
* `lookup` {Function} Custom lookup function. Defaults to [`dns.lookup()`][].
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Would be nice to provide the function signature

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I copied that directly from the net docs for the same feature.

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cjihrig commented Aug 2, 2017

This commit adds support for custom DNS lookup functions in
dgram sockets. This is similar to the existing feature in net
sockets.

Refs: nodejs#6189
PR-URL: nodejs#14560
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Wyatt Preul <[email protected]>
Reviewed-By: Evan Lucas <[email protected]>
@cjihrig cjihrig merged commit 5a05055 into nodejs:master Aug 3, 2017
@cjihrig cjihrig deleted the lookup branch August 3, 2017 00:34
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This doesn’t land cleanly on 8.x; if you can, please follow the guide and raise a backport PR, if you don’t think it’s worth it just add the dont-land-on label.

maclover7 referenced this pull request in maclover7/node Sep 17, 2017
Will break YAML parsing!

Original Node error:

```
Jonathans-MBP:node jon$ node tools/doc/generate.js --format=json doc/api/dgram.md
Input file = doc/api/dgram.md
{ Error
    at generateError (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:165:10)
    at throwError (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:171:9)
    at readBlockSequence (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:935:7)
    at composeNode (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1331:12)
    at readBlockMapping (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1062:11)
    at composeNode (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1332:12)
    at readDocument (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1492:3)
    at loadDocuments (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1548:5)
    at load (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1569:19)
    at Object.safeLoad (/Users/jon/code/nodejs/node/tools/eslint/node_modules/js-yaml/lib/js-yaml/loader.js:1591:10)
  name: 'YAMLException',
  reason: 'bad indentation of a sequence entry',
  mark:
   Mark {
     name: null,
     buffer: '\nadded: v0.11.13\nchanges:\n  - version: REPLACEME\n    pr-url: https://github.com/nodejs/node/pull/14560\n    description: The `lookup` option is supported.\n  - version: REPLACEME\n    pr-url: https://github.com/nodejs/node/pull/13623\n    description: `recvBufferSize` and `sendBufferSize` options are supported now.\n\u0000',
     position: 248,
     line: 8,
     column: 17 },
  message: 'bad indentation of a sequence entry at line 9, column 18:\n        description: `recvBufferSize` and `sendBuffer ... \n                     ^' }
```

Then I extracted out the problematic YAML, and tried running through Ruby as a
separate `.yml` file:

```
Psych::SyntaxError: (<unknown>): found character that cannot start any token while scanning for the next token at line 8 column 18
	from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:377:in `parse'
	from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:377:in `parse_stream'
	from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:325:in `parse'
	from /Users/jon/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:252:in `load'
	from (irb):7
	from /Users/jon/.rbenv/versions/2.4.0/bin/irb:11:in `<main>'
```
@jasnell jasnell mentioned this pull request Sep 20, 2017
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jasnell commented Sep 20, 2017

Ping @cjihrig ... Initial basic attempts to backport this for v8.x are failing due to some issue with dns. Will investigate further shortly.

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cjihrig commented Sep 22, 2017

@jasnell not sure. The commit in this PR lands cleanly for me on v8.x-staging. I ran the test suite locally and only saw one unrelated failure (test/sequential/test-benchmark-http.js).

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jasnell commented Sep 22, 2017

It's likely that the commits I landed today unblocked it. I'll try again tomorrow

jasnell pushed a commit that referenced this pull request Sep 25, 2017
This commit adds support for custom DNS lookup functions in
dgram sockets. This is similar to the existing feature in net
sockets.

Refs: #6189
PR-URL: #14560
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Wyatt Preul <[email protected]>
Reviewed-By: Evan Lucas <[email protected]>
jasnell added a commit that referenced this pull request Sep 26, 2017
* **crypto**
  * Support for multiple ECDH curves. [#15206](#15206)
* **dgram**
  * Added `setMulticastInterface()` API. [#7855](#7855)
  * Custom lookup functions are now supported. [#14560](#14560)
* **n-api**
  * The command-line flag is no longer required to use N-API. [#14902](#14902)
* **tls**
  * Docs-only deprecation of `parseCertString()`. [#14245](#14245)
* **New Contributors**
  * Welcome Sebastiaan Deckers (@sebdeckers) as a new Collaborator! [#15354](#15354)
jasnell added a commit that referenced this pull request Sep 26, 2017
* **crypto**
  * Support for multiple ECDH curves. [#15206](#15206)
* **dgram**
  * Added `setMulticastInterface()` API. [#7855](#7855)
  * Custom lookup functions are now supported. [#14560](#14560)
* **n-api**
  * The command-line flag is no longer required to use N-API. [#14902](#14902)
* **tls**
  * Docs-only deprecation of `parseCertString()`. [#14245](#14245)
* **New Contributors**
  * Welcome Sebastiaan Deckers (@sebdeckers) as a new Collaborator! [#15354](#15354)
MylesBorins pushed a commit that referenced this pull request Sep 29, 2017
* **crypto**
  * Support for multiple ECDH curves. [#15206](#15206)
* **dgram**
  * Added `setMulticastInterface()` API. [#7855](#7855)
  * Custom lookup functions are now supported. [#14560](#14560)
* **n-api**
  * The command-line flag is no longer required to use N-API. [#14902](#14902)
* **tls**
  * Docs-only deprecation of `parseCertString()`. [#14245](#14245)
* **New Contributors**
  * Welcome Sebastiaan Deckers (@sebdeckers) as a new Collaborator! [#15354](#15354)
addaleax pushed a commit to addaleax/ayo that referenced this pull request Sep 30, 2017
* **crypto**
  * Support for multiple ECDH curves. [#15206](nodejs/node#15206)
* **dgram**
  * Added `setMulticastInterface()` API. [#7855](nodejs/node#7855)
  * Custom lookup functions are now supported. [#14560](nodejs/node#14560)
* **n-api**
  * The command-line flag is no longer required to use N-API. [#14902](nodejs/node#14902)
* **tls**
  * Docs-only deprecation of `parseCertString()`. [#14245](nodejs/node#14245)
* **New Contributors**
  * Welcome Sebastiaan Deckers (@sebdeckers) as a new Collaborator! [#15354](nodejs/node#15354)
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gibfahn commented Jan 15, 2018

Release team were -1 on landing on v6.x, if you disagree let us know.

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