Add vendoring for inotify

go.mod

@@ -7,4 +7,5 @@ require (
 	github.com/d2r2/go-i2c v0.0.0-20191123181816-73a8a799d6bc
 	github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/fsnotify/fsnotify v1.4.9
 )

go.sum

@@ -6,3 +6,7 @@ github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e h1:ZG3JBA6rPRl0xxQ+
 github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e/go.mod h1:oA+9PUt8F1aKJ6o4YU1T120i7sgo1T6/1LWEEBy0BSs=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
+github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9 h1:L2auWcuQIvxz9xSEqzESnV/QN/gNRXNApHi3fYwl2w0=
+golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/fsnotify/fsnotify/.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*.go]
+indent_style = tab
+indent_size = 4
+insert_final_newline = true
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true

vendor/github.com/fsnotify/fsnotify/.gitattributes

@@ -0,0 +1 @@
+go.sum linguist-generated

vendor/github.com/fsnotify/fsnotify/.gitignore

@@ -0,0 +1,6 @@
+# Setup a Global .gitignore for OS and editor generated files:
+# https://help.github.com/articles/ignoring-files
+# git config --global core.excludesfile ~/.gitignore_global
+
+.vagrant
+*.sublime-project

vendor/github.com/fsnotify/fsnotify/.travis.yml

@@ -0,0 +1,36 @@
+sudo: false
+language: go
+
+go:
+  - "stable"
+  - "1.11.x"
+  - "1.10.x"
+  - "1.9.x"
+
+matrix:
+  include:
+    - go: "stable"
+      env: GOLINT=true
+  allow_failures:
+    - go: tip
+  fast_finish: true
+
+
+before_install:
+  - if [ ! -z "${GOLINT}" ]; then go get -u golang.org/x/lint/golint; fi
+
+script:
+  - go test --race ./...
+
+after_script:
+  - test -z "$(gofmt -s -l -w . | tee /dev/stderr)"
+  - if [ ! -z  "${GOLINT}" ]; then echo running golint; golint --set_exit_status  ./...; else echo skipping golint; fi
+  - go vet ./...
+
+os:
+  - linux
+  - osx
+  - windows
+
+notifications:
+  email: false

vendor/github.com/fsnotify/fsnotify/AUTHORS

@@ -0,0 +1,52 @@
+# Names should be added to this file as
+#	Name or Organization <email address>
+# The email address is not required for organizations.
+
+# You can update this list using the following command:
+#
+#   $ git shortlog -se | awk '{print $2 " " $3 " " $4}'
+
+# Please keep the list sorted.
+
+Aaron L <aaron@bettercoder.net>
+Adrien Bustany <adrien@bustany.org>
+Amit Krishnan <amit.krishnan@oracle.com>
+Anmol Sethi <me@anmol.io>
+Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
+Bruno Bigras <bigras.bruno@gmail.com>
+Caleb Spare <cespare@gmail.com>
+Case Nelson <case@teammating.com>
+Chris Howey <chris@howey.me> <howeyc@gmail.com>
+Christoffer Buchholz <christoffer.buchholz@gmail.com>
+Daniel Wagner-Hall <dawagner@gmail.com>
+Dave Cheney <dave@cheney.net>
+Evan Phoenix <evan@fallingsnow.net>
+Francisco Souza <f@souza.cc>
+Hari haran <hariharan.uno@gmail.com>
+John C Barstow
+Kelvin Fo <vmirage@gmail.com>
+Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
+Matt Layher <mdlayher@gmail.com>
+Nathan Youngman <git@nathany.com>
+Nickolai Zeldovich <nickolai@csail.mit.edu>
+Patrick <patrick@dropbox.com>
+Paul Hammond <paul@paulhammond.org>
+Pawel Knap <pawelknap88@gmail.com>
+Pieter Droogendijk <pieter@binky.org.uk>
+Pursuit92 <JoshChase@techpursuit.net>
+Riku Voipio <riku.voipio@linaro.org>
+Rob Figueiredo <robfig@gmail.com>
+Rodrigo Chiossi <rodrigochiossi@gmail.com>
+Slawek Ligus <root@ooz.ie>
+Soge Zhang <zhssoge@gmail.com>
+Tiffany Jernigan <tiffany.jernigan@intel.com>
+Tilak Sharma <tilaks@google.com>
+Tom Payne <twpayne@gmail.com>
+Travis Cline <travis.cline@gmail.com>
+Tudor Golubenco <tudor.g@gmail.com>
+Vahe Khachikyan <vahe@live.ca>
+Yukang <moorekang@gmail.com>
+bronze1man <bronze1man@gmail.com>
+debrando <denis.brandolini@gmail.com>
+henrikedwards <henrik.edwards@gmail.com>
+铁哥 <guotie.9@gmail.com>

vendor/github.com/fsnotify/fsnotify/CHANGELOG.md

@@ -0,0 +1,317 @@
+# Changelog
+
+## v1.4.7 / 2018-01-09
+
+* BSD/macOS: Fix possible deadlock on closing the watcher on kqueue (thanks @nhooyr and @glycerine)
+* Tests: Fix missing verb on format string (thanks @rchiossi)
+* Linux: Fix deadlock in Remove (thanks @aarondl)
+* Linux: Watch.Add improvements (avoid race, fix consistency, reduce garbage) (thanks @twpayne)
+* Docs: Moved FAQ into the README (thanks @vahe)
+* Linux: Properly handle inotify's IN_Q_OVERFLOW event (thanks @zeldovich)
+* Docs: replace references to OS X with macOS
+
+## v1.4.2 / 2016-10-10
+
+* Linux: use InotifyInit1 with IN_CLOEXEC to stop leaking a file descriptor to a child process when using fork/exec [#178](https://github.com/fsnotify/fsnotify/pull/178) (thanks @pattyshack)
+
+## v1.4.1 / 2016-10-04
+
+* Fix flaky inotify stress test on Linux [#177](https://github.com/fsnotify/fsnotify/pull/177) (thanks @pattyshack)
+
+## v1.4.0 / 2016-10-01
+
+* add a String() method to Event.Op [#165](https://github.com/fsnotify/fsnotify/pull/165) (thanks @oozie)
+
+## v1.3.1 / 2016-06-28
+
+* Windows: fix for double backslash when watching the root of a drive [#151](https://github.com/fsnotify/fsnotify/issues/151) (thanks @brunoqc)
+
+## v1.3.0 / 2016-04-19
+
+* Support linux/arm64 by [patching](https://go-review.googlesource.com/#/c/21971/) x/sys/unix and switching to to it from syscall (thanks @suihkulokki) [#135](https://github.com/fsnotify/fsnotify/pull/135)
+
+## v1.2.10 / 2016-03-02
+
+* Fix golint errors in windows.go [#121](https://github.com/fsnotify/fsnotify/pull/121) (thanks @tiffanyfj)
+
+## v1.2.9 / 2016-01-13
+
+kqueue: Fix logic for CREATE after REMOVE [#111](https://github.com/fsnotify/fsnotify/pull/111) (thanks @bep)
+
+## v1.2.8 / 2015-12-17
+
+* kqueue: fix race condition in Close [#105](https://github.com/fsnotify/fsnotify/pull/105) (thanks @djui for reporting the issue and @ppknap for writing a failing test)
+* inotify: fix race in test
+* enable race detection for continuous integration (Linux, Mac, Windows)
+
+## v1.2.5 / 2015-10-17
+
+* inotify: use epoll_create1 for arm64 support (requires Linux 2.6.27 or later) [#100](https://github.com/fsnotify/fsnotify/pull/100) (thanks @suihkulokki)
+* inotify: fix path leaks [#73](https://github.com/fsnotify/fsnotify/pull/73) (thanks @chamaken)
+* kqueue: watch for rename events on subdirectories [#83](https://github.com/fsnotify/fsnotify/pull/83) (thanks @guotie)
+* kqueue: avoid infinite loops from symlinks cycles [#101](https://github.com/fsnotify/fsnotify/pull/101) (thanks @illicitonion)
+
+## v1.2.1 / 2015-10-14
+
+* kqueue: don't watch named pipes [#98](https://github.com/fsnotify/fsnotify/pull/98) (thanks @evanphx)
+
+## v1.2.0 / 2015-02-08
+
+* inotify: use epoll to wake up readEvents [#66](https://github.com/fsnotify/fsnotify/pull/66) (thanks @PieterD)
+* inotify: closing watcher should now always shut down goroutine [#63](https://github.com/fsnotify/fsnotify/pull/63) (thanks @PieterD)
+* kqueue: close kqueue after removing watches, fixes [#59](https://github.com/fsnotify/fsnotify/issues/59)
+
+## v1.1.1 / 2015-02-05
+
+* inotify: Retry read on EINTR [#61](https://github.com/fsnotify/fsnotify/issues/61) (thanks @PieterD)
+
+## v1.1.0 / 2014-12-12
+
+* kqueue: rework internals [#43](https://github.com/fsnotify/fsnotify/pull/43)
+    * add low-level functions
+    * only need to store flags on directories
+    * less mutexes [#13](https://github.com/fsnotify/fsnotify/issues/13)
+    * done can be an unbuffered channel
+    * remove calls to os.NewSyscallError
+* More efficient string concatenation for Event.String() [#52](https://github.com/fsnotify/fsnotify/pull/52) (thanks @mdlayher)
+* kqueue: fix regression in  rework causing subdirectories to be watched [#48](https://github.com/fsnotify/fsnotify/issues/48)
+* kqueue: cleanup internal watch before sending remove event [#51](https://github.com/fsnotify/fsnotify/issues/51)
+
+## v1.0.4 / 2014-09-07
+
+* kqueue: add dragonfly to the build tags.
+* Rename source code files, rearrange code so exported APIs are at the top.
+* Add done channel to example code. [#37](https://github.com/fsnotify/fsnotify/pull/37) (thanks @chenyukang)
+
+## v1.0.3 / 2014-08-19
+
+* [Fix] Windows MOVED_TO now translates to Create like on BSD and Linux. [#36](https://github.com/fsnotify/fsnotify/issues/36)
+
+## v1.0.2 / 2014-08-17
+
+* [Fix] Missing create events on macOS. [#14](https://github.com/fsnotify/fsnotify/issues/14) (thanks @zhsso)
+* [Fix] Make ./path and path equivalent. (thanks @zhsso)
+
+## v1.0.0 / 2014-08-15
+
+* [API] Remove AddWatch on Windows, use Add.
+* Improve documentation for exported identifiers. [#30](https://github.com/fsnotify/fsnotify/issues/30)
+* Minor updates based on feedback from golint.
+
+## dev / 2014-07-09
+
+* Moved to [github.com/fsnotify/fsnotify](https://github.com/fsnotify/fsnotify).
+* Use os.NewSyscallError instead of returning errno (thanks @hariharan-uno)
+
+## dev / 2014-07-04
+
+* kqueue: fix incorrect mutex used in Close()
+* Update example to demonstrate usage of Op.
+
+## dev / 2014-06-28
+
+* [API] Don't set the Write Op for attribute notifications [#4](https://github.com/fsnotify/fsnotify/issues/4)
+* Fix for String() method on Event (thanks Alex Brainman)
+* Don't build on Plan 9 or Solaris (thanks @4ad)
+
+## dev / 2014-06-21
+
+* Events channel of type Event rather than *Event.
+* [internal] use syscall constants directly for inotify and kqueue.
+* [internal] kqueue: rename events to kevents and fileEvent to event.
+
+## dev / 2014-06-19
+
+* Go 1.3+ required on Windows (uses syscall.ERROR_MORE_DATA internally).
+* [internal] remove cookie from Event struct (unused).
+* [internal] Event struct has the same definition across every OS.
+* [internal] remove internal watch and removeWatch methods.
+
+## dev / 2014-06-12
+
+* [API] Renamed Watch() to Add() and RemoveWatch() to Remove().
+* [API] Pluralized channel names: Events and Errors.
+* [API] Renamed FileEvent struct to Event.
+* [API] Op constants replace methods like IsCreate().
+
+## dev / 2014-06-12
+
+* Fix data race on kevent buffer (thanks @tilaks) [#98](https://github.com/howeyc/fsnotify/pull/98)
+
+## dev / 2014-05-23
+
+* [API] Remove current implementation of WatchFlags.
+    * current implementation doesn't take advantage of OS for efficiency
+    * provides little benefit over filtering events as they are received, but has  extra bookkeeping and mutexes
+    * no tests for the current implementation
+    * not fully implemented on Windows [#93](https://github.com/howeyc/fsnotify/issues/93#issuecomment-39285195)
+
+## v0.9.3 / 2014-12-31
+
+* kqueue: cleanup internal watch before sending remove event [#51](https://github.com/fsnotify/fsnotify/issues/51)
+
+## v0.9.2 / 2014-08-17
+
+* [Backport] Fix missing create events on macOS. [#14](https://github.com/fsnotify/fsnotify/issues/14) (thanks @zhsso)
+
+## v0.9.1 / 2014-06-12
+
+* Fix data race on kevent buffer (thanks @tilaks) [#98](https://github.com/howeyc/fsnotify/pull/98)
+
+## v0.9.0 / 2014-01-17
+
+* IsAttrib() for events that only concern a file's metadata [#79][] (thanks @abustany)
+* [Fix] kqueue: fix deadlock [#77][] (thanks @cespare)
+* [NOTICE] Development has moved to `code.google.com/p/go.exp/fsnotify` in preparation for inclusion in the Go standard library.
+
+## v0.8.12 / 2013-11-13
+
+* [API] Remove FD_SET and friends from Linux adapter
+
+## v0.8.11 / 2013-11-02
+
+* [Doc] Add Changelog [#72][] (thanks @nathany)
+* [Doc] Spotlight and double modify events on macOS [#62][] (reported by @paulhammond)
+
+## v0.8.10 / 2013-10-19
+
+* [Fix] kqueue: remove file watches when parent directory is removed [#71][] (reported by @mdwhatcott)
+* [Fix] kqueue: race between Close and readEvents [#70][] (reported by @bernerdschaefer)
+* [Doc] specify OS-specific limits in README (thanks @debrando)
+
+## v0.8.9 / 2013-09-08
+
+* [Doc] Contributing (thanks @nathany)
+* [Doc] update package path in example code [#63][] (thanks @paulhammond)
+* [Doc] GoCI badge in README (Linux only) [#60][]
+* [Doc] Cross-platform testing with Vagrant  [#59][] (thanks @nathany)
+
+## v0.8.8 / 2013-06-17
+
+* [Fix] Windows: handle `ERROR_MORE_DATA` on Windows [#49][] (thanks @jbowtie)
+
+## v0.8.7 / 2013-06-03
+
+* [API] Make syscall flags internal
+* [Fix] inotify: ignore event changes
+* [Fix] race in symlink test [#45][] (reported by @srid)
+* [Fix] tests on Windows
+* lower case error messages
+
+## v0.8.6 / 2013-05-23
+
+* kqueue: Use EVT_ONLY flag on Darwin
+* [Doc] Update README with full example
+
+## v0.8.5 / 2013-05-09
+
+* [Fix] inotify: allow monitoring of "broken" symlinks (thanks @tsg)
+
+## v0.8.4 / 2013-04-07
+
+* [Fix] kqueue: watch all file events [#40][] (thanks @ChrisBuchholz)
+
+## v0.8.3 / 2013-03-13
+
+* [Fix] inoitfy/kqueue memory leak [#36][] (reported by @nbkolchin)
+* [Fix] kqueue: use fsnFlags for watching a directory [#33][] (reported by @nbkolchin)
+
+## v0.8.2 / 2013-02-07
+
+* [Doc] add Authors
+* [Fix] fix data races for map access [#29][] (thanks @fsouza)
+
+## v0.8.1 / 2013-01-09
+
+* [Fix] Windows path separators
+* [Doc] BSD License
+
+## v0.8.0 / 2012-11-09
+
+* kqueue: directory watching improvements (thanks @vmirage)
+* inotify: add `IN_MOVED_TO` [#25][] (requested by @cpisto)
+* [Fix] kqueue: deleting watched directory [#24][] (reported by @jakerr)
+
+## v0.7.4 / 2012-10-09
+
+* [Fix] inotify: fixes from https://codereview.appspot.com/5418045/ (ugorji)
+* [Fix] kqueue: preserve watch flags when watching for delete [#21][] (reported by @robfig)
+* [Fix] kqueue: watch the directory even if it isn't a new watch (thanks @robfig)
+* [Fix] kqueue: modify after recreation of file
+
+## v0.7.3 / 2012-09-27
+
+* [Fix] kqueue: watch with an existing folder inside the watched folder (thanks @vmirage)
+* [Fix] kqueue: no longer get duplicate CREATE events
+
+## v0.7.2 / 2012-09-01
+
+* kqueue: events for created directories
+
+## v0.7.1 / 2012-07-14
+
+* [Fix] for renaming files
+
+## v0.7.0 / 2012-07-02
+
+* [Feature] FSNotify flags
+* [Fix] inotify: Added file name back to event path
+
+## v0.6.0 / 2012-06-06
+
+* kqueue: watch files after directory created (thanks @tmc)
+
+## v0.5.1 / 2012-05-22
+
+* [Fix] inotify: remove all watches before Close()
+
+## v0.5.0 / 2012-05-03
+
+* [API] kqueue: return errors during watch instead of sending over channel
+* kqueue: match symlink behavior on Linux
+* inotify: add `DELETE_SELF` (requested by @taralx)
+* [Fix] kqueue: handle EINTR (reported by @robfig)
+* [Doc] Godoc example [#1][] (thanks @davecheney)
+
+## v0.4.0 / 2012-03-30
+
+* Go 1 released: build with go tool
+* [Feature] Windows support using winfsnotify
+* Windows does not have attribute change notifications
+* Roll attribute notifications into IsModify
+
+## v0.3.0 / 2012-02-19
+
+* kqueue: add files when watch directory
+
+## v0.2.0 / 2011-12-30
+
+* update to latest Go weekly code
+
+## v0.1.0 / 2011-10-19
+
+* kqueue: add watch on file creation to match inotify
+* kqueue: create file event
+* inotify: ignore `IN_IGNORED` events
+* event String()
+* linux: common FileEvent functions
+* initial commit
+
+[#79]: https://github.com/howeyc/fsnotify/pull/79
+[#77]: https://github.com/howeyc/fsnotify/pull/77
+[#72]: https://github.com/howeyc/fsnotify/issues/72
+[#71]: https://github.com/howeyc/fsnotify/issues/71
+[#70]: https://github.com/howeyc/fsnotify/issues/70
+[#63]: https://github.com/howeyc/fsnotify/issues/63
+[#62]: https://github.com/howeyc/fsnotify/issues/62
+[#60]: https://github.com/howeyc/fsnotify/issues/60
+[#59]: https://github.com/howeyc/fsnotify/issues/59
+[#49]: https://github.com/howeyc/fsnotify/issues/49
+[#45]: https://github.com/howeyc/fsnotify/issues/45
+[#40]: https://github.com/howeyc/fsnotify/issues/40
+[#36]: https://github.com/howeyc/fsnotify/issues/36
+[#33]: https://github.com/howeyc/fsnotify/issues/33
+[#29]: https://github.com/howeyc/fsnotify/issues/29
+[#25]: https://github.com/howeyc/fsnotify/issues/25
+[#24]: https://github.com/howeyc/fsnotify/issues/24
+[#21]: https://github.com/howeyc/fsnotify/issues/21

vendor/github.com/fsnotify/fsnotify/CONTRIBUTING.md

@@ -0,0 +1,77 @@
+# Contributing
+
+## Issues
+
+* Request features and report bugs using the [GitHub Issue Tracker](https://github.com/fsnotify/fsnotify/issues).
+* Please indicate the platform you are using fsnotify on.
+* A code example to reproduce the problem is appreciated.
+
+## Pull Requests
+
+### Contributor License Agreement
+
+fsnotify is derived from code in the [golang.org/x/exp](https://godoc.org/golang.org/x/exp) package and it may be included [in the standard library](https://github.com/fsnotify/fsnotify/issues/1) in the future. Therefore fsnotify carries the same [LICENSE](https://github.com/fsnotify/fsnotify/blob/master/LICENSE) as Go. Contributors retain their copyright, so you need to fill out a short form before we can accept your contribution: [Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual).
+
+Please indicate that you have signed the CLA in your pull request.
+
+### How fsnotify is Developed
+
+* Development is done on feature branches.
+* Tests are run on BSD, Linux, macOS and Windows.
+* Pull requests are reviewed and [applied to master][am] using [hub][].
+  * Maintainers may modify or squash commits rather than asking contributors to.
+* To issue a new release, the maintainers will:
+  * Update the CHANGELOG
+  * Tag a version, which will become available through gopkg.in.
+ 
+### How to Fork
+
+For smooth sailing, always use the original import path. Installing with `go get` makes this easy. 
+
+1. Install from GitHub (`go get -u github.com/fsnotify/fsnotify`)
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Ensure everything works and the tests pass (see below)
+4. Commit your changes (`git commit -am 'Add some feature'`)
+
+Contribute upstream:
+
+1. Fork fsnotify on GitHub
+2. Add your remote (`git remote add fork git@github.com:mycompany/repo.git`)
+3. Push to the branch (`git push fork my-new-feature`)
+4. Create a new Pull Request on GitHub
+
+This workflow is [thoroughly explained by Katrina Owen](https://splice.com/blog/contributing-open-source-git-repositories-go/).
+
+### Testing
+
+fsnotify uses build tags to compile different code on Linux, BSD, macOS, and Windows.
+
+Before doing a pull request, please do your best to test your changes on multiple platforms, and list which platforms you were able/unable to test on.
+
+To aid in cross-platform testing there is a Vagrantfile for Linux and BSD.
+
+* Install [Vagrant](http://www.vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/)
+* Setup [Vagrant Gopher](https://github.com/nathany/vagrant-gopher) in your `src` folder.
+* Run `vagrant up` from the project folder. You can also setup just one box with `vagrant up linux` or `vagrant up bsd` (note: the BSD box doesn't support Windows hosts at this time, and NFS may prompt for your host OS password)
+* Once setup, you can run the test suite on a given OS with a single command `vagrant ssh linux -c 'cd fsnotify/fsnotify; go test'`.
+* When you're done, you will want to halt or destroy the Vagrant boxes.
+
+Notice: fsnotify file system events won't trigger in shared folders. The tests get around this limitation by using the /tmp directory.
+
+Right now there is no equivalent solution for Windows and macOS, but there are Windows VMs [freely available from Microsoft](http://www.modern.ie/en-us/virtualization-tools#downloads).
+
+### Maintainers
+
+Help maintaining fsnotify is welcome. To be a maintainer:
+
+* Submit a pull request and sign the CLA as above.
+* You must be able to run the test suite on Mac, Windows, Linux and BSD.
+
+To keep master clean, the fsnotify project uses the "apply mail" workflow outlined in Nathaniel Talbott's post ["Merge pull request" Considered Harmful][am]. This requires installing [hub][].
+
+All code changes should be internal pull requests.
+
+Releases are tagged using [Semantic Versioning](http://semver.org/).
+
+[hub]: https://github.com/github/hub
+[am]: http://blog.spreedly.com/2014/06/24/merge-pull-request-considered-harmful/#.VGa5yZPF_Zs

vendor/github.com/fsnotify/fsnotify/LICENSE

@@ -0,0 +1,28 @@
+Copyright (c) 2012 The Go Authors. All rights reserved.
+Copyright (c) 2012-2019 fsnotify Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/fsnotify/fsnotify/README.md

@@ -0,0 +1,130 @@
+# File system notifications for Go
+
+[![GoDoc](https://godoc.org/github.com/fsnotify/fsnotify?status.svg)](https://godoc.org/github.com/fsnotify/fsnotify) [![Go Report Card](https://goreportcard.com/badge/github.com/fsnotify/fsnotify)](https://goreportcard.com/report/github.com/fsnotify/fsnotify)
+
+fsnotify utilizes [golang.org/x/sys](https://godoc.org/golang.org/x/sys) rather than `syscall` from the standard library. Ensure you have the latest version installed by running:
+
+```console
+go get -u golang.org/x/sys/...
+```
+
+Cross platform: Windows, Linux, BSD and macOS.
+
+| Adapter               | OS                               | Status                                                                                                                          |
+| --------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
+| inotify               | Linux 2.6.27 or later, Android\* | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
+| kqueue                | BSD, macOS, iOS\*                | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
+| ReadDirectoryChangesW | Windows                          | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
+| FSEvents              | macOS                            | [Planned](https://github.com/fsnotify/fsnotify/issues/11)                                                                       |
+| FEN                   | Solaris 11                       | [In Progress](https://github.com/fsnotify/fsnotify/issues/12)                                                                   |
+| fanotify              | Linux 2.6.37+                    | [Planned](https://github.com/fsnotify/fsnotify/issues/114)                                                                      |
+| USN Journals          | Windows                          | [Maybe](https://github.com/fsnotify/fsnotify/issues/53)                                                                         |
+| Polling               | *All*                            | [Maybe](https://github.com/fsnotify/fsnotify/issues/9)                                                                          |
+
+\* Android and iOS are untested.
+
+Please see [the documentation](https://godoc.org/github.com/fsnotify/fsnotify) and consult the [FAQ](#faq) for usage information.
+
+## API stability
+
+fsnotify is a fork of [howeyc/fsnotify](https://godoc.org/github.com/howeyc/fsnotify) with a new API as of v1.0. The API is based on [this design document](http://goo.gl/MrYxyA). 
+
+All [releases](https://github.com/fsnotify/fsnotify/releases) are tagged based on [Semantic Versioning](http://semver.org/). Further API changes are [planned](https://github.com/fsnotify/fsnotify/milestones), and will be tagged with a new major revision number.
+
+Go 1.6 supports dependencies located in the `vendor/` folder. Unless you are creating a library, it is recommended that you copy fsnotify into `vendor/github.com/fsnotify/fsnotify` within your project, and likewise for `golang.org/x/sys`.
+
+## Usage
+
+```go
+package main
+
+import (
+	"log"
+
+	"github.com/fsnotify/fsnotify"
+)
+
+func main() {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer watcher.Close()
+
+	done := make(chan bool)
+	go func() {
+		for {
+			select {
+			case event, ok := <-watcher.Events:
+				if !ok {
+					return
+				}
+				log.Println("event:", event)
+				if event.Op&fsnotify.Write == fsnotify.Write {
+					log.Println("modified file:", event.Name)
+				}
+			case err, ok := <-watcher.Errors:
+				if !ok {
+					return
+				}
+				log.Println("error:", err)
+			}
+		}
+	}()
+
+	err = watcher.Add("/tmp/foo")
+	if err != nil {
+		log.Fatal(err)
+	}
+	<-done
+}
+```
+
+## Contributing
+
+Please refer to [CONTRIBUTING][] before opening an issue or pull request.
+
+## Example
+
+See [example_test.go](https://github.com/fsnotify/fsnotify/blob/master/example_test.go).
+
+## FAQ
+
+**When a file is moved to another directory is it still being watched?**
+
+No (it shouldn't be, unless you are watching where it was moved to).
+
+**When I watch a directory, are all subdirectories watched as well?**
+
+No, you must add watches for any directory you want to watch (a recursive watcher is on the roadmap [#18][]).
+
+**Do I have to watch the Error and Event channels in a separate goroutine?**
+
+As of now, yes. Looking into making this single-thread friendly (see [howeyc #7][#7])
+
+**Why am I receiving multiple events for the same file on OS X?**
+
+Spotlight indexing on OS X can result in multiple events (see [howeyc #62][#62]). A temporary workaround is to add your folder(s) to the *Spotlight Privacy settings* until we have a native FSEvents implementation (see [#11][]).
+
+**How many files can be watched at once?**
+
+There are OS-specific limits as to how many watches can be created:
+* Linux: /proc/sys/fs/inotify/max_user_watches contains the limit, reaching this limit results in a "no space left on device" error.
+* BSD / OSX: sysctl variables "kern.maxfiles" and "kern.maxfilesperproc", reaching these limits results in a "too many open files" error.
+
+**Why don't notifications work with NFS filesystems or filesystem in userspace (FUSE)?**
+
+fsnotify requires support from underlying OS to work. The current NFS protocol does not provide network level support for file notifications.
+
+[#62]: https://github.com/howeyc/fsnotify/issues/62
+[#18]: https://github.com/fsnotify/fsnotify/issues/18
+[#11]: https://github.com/fsnotify/fsnotify/issues/11
+[#7]: https://github.com/howeyc/fsnotify/issues/7
+
+[contributing]: https://github.com/fsnotify/fsnotify/blob/master/CONTRIBUTING.md
+
+## Related Projects
+
+* [notify](https://github.com/rjeczalik/notify)
+* [fsevents](https://github.com/fsnotify/fsevents)
+

vendor/github.com/fsnotify/fsnotify/fen.go

@@ -0,0 +1,37 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build solaris
+
+package fsnotify
+
+import (
+	"errors"
+)
+
+// Watcher watches a set of files, delivering events to a channel.
+type Watcher struct {
+	Events chan Event
+	Errors chan error
+}
+
+// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
+func NewWatcher() (*Watcher, error) {
+	return nil, errors.New("FEN based watcher not yet supported for fsnotify\n")
+}
+
+// Close removes all watches and closes the events channel.
+func (w *Watcher) Close() error {
+	return nil
+}
+
+// Add starts watching the named file or directory (non-recursively).
+func (w *Watcher) Add(name string) error {
+	return nil
+}
+
+// Remove stops watching the the named file or directory (non-recursively).
+func (w *Watcher) Remove(name string) error {
+	return nil
+}

vendor/github.com/fsnotify/fsnotify/fsnotify.go

@@ -0,0 +1,68 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !plan9
+
+// Package fsnotify provides a platform-independent interface for file system notifications.
+package fsnotify
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+)
+
+// Event represents a single file system notification.
+type Event struct {
+	Name string // Relative path to the file or directory.
+	Op   Op     // File operation that triggered the event.
+}
+
+// Op describes a set of file operations.
+type Op uint32
+
+// These are the generalized file operations that can trigger a notification.
+const (
+	Create Op = 1 << iota
+	Write
+	Remove
+	Rename
+	Chmod
+)
+
+func (op Op) String() string {
+	// Use a buffer for efficient string concatenation
+	var buffer bytes.Buffer
+
+	if op&Create == Create {
+		buffer.WriteString("|CREATE")
+	}
+	if op&Remove == Remove {
+		buffer.WriteString("|REMOVE")
+	}
+	if op&Write == Write {
+		buffer.WriteString("|WRITE")
+	}
+	if op&Rename == Rename {
+		buffer.WriteString("|RENAME")
+	}
+	if op&Chmod == Chmod {
+		buffer.WriteString("|CHMOD")
+	}
+	if buffer.Len() == 0 {
+		return ""
+	}
+	return buffer.String()[1:] // Strip leading pipe
+}
+
+// String returns a string representation of the event in the form
+// "file: REMOVE|WRITE|..."
+func (e Event) String() string {
+	return fmt.Sprintf("%q: %s", e.Name, e.Op.String())
+}
+
+// Common errors that can be reported by a watcher
+var (
+	ErrEventOverflow = errors.New("fsnotify queue overflow")
+)

vendor/github.com/fsnotify/fsnotify/go.mod

@@ -0,0 +1,5 @@
+module github.com/fsnotify/fsnotify
+
+go 1.13
+
+require golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9

vendor/github.com/fsnotify/fsnotify/go.sum

@@ -0,0 +1,2 @@
+golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9 h1:L2auWcuQIvxz9xSEqzESnV/QN/gNRXNApHi3fYwl2w0=
+golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/fsnotify/fsnotify/inotify.go

@@ -0,0 +1,337 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+
+package fsnotify
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+// Watcher watches a set of files, delivering events to a channel.
+type Watcher struct {
+	Events   chan Event
+	Errors   chan error
+	mu       sync.Mutex // Map access
+	fd       int
+	poller   *fdPoller
+	watches  map[string]*watch // Map of inotify watches (key: path)
+	paths    map[int]string    // Map of watched paths (key: watch descriptor)
+	done     chan struct{}     // Channel for sending a "quit message" to the reader goroutine
+	doneResp chan struct{}     // Channel to respond to Close
+}
+
+// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
+func NewWatcher() (*Watcher, error) {
+	// Create inotify fd
+	fd, errno := unix.InotifyInit1(unix.IN_CLOEXEC)
+	if fd == -1 {
+		return nil, errno
+	}
+	// Create epoll
+	poller, err := newFdPoller(fd)
+	if err != nil {
+		unix.Close(fd)
+		return nil, err
+	}
+	w := &Watcher{
+		fd:       fd,
+		poller:   poller,
+		watches:  make(map[string]*watch),
+		paths:    make(map[int]string),
+		Events:   make(chan Event),
+		Errors:   make(chan error),
+		done:     make(chan struct{}),
+		doneResp: make(chan struct{}),
+	}
+
+	go w.readEvents()
+	return w, nil
+}
+
+func (w *Watcher) isClosed() bool {
+	select {
+	case <-w.done:
+		return true
+	default:
+		return false
+	}
+}
+
+// Close removes all watches and closes the events channel.
+func (w *Watcher) Close() error {
+	if w.isClosed() {
+		return nil
+	}
+
+	// Send 'close' signal to goroutine, and set the Watcher to closed.
+	close(w.done)
+
+	// Wake up goroutine
+	w.poller.wake()
+
+	// Wait for goroutine to close
+	<-w.doneResp
+
+	return nil
+}
+
+// Add starts watching the named file or directory (non-recursively).
+func (w *Watcher) Add(name string) error {
+	name = filepath.Clean(name)
+	if w.isClosed() {
+		return errors.New("inotify instance already closed")
+	}
+
+	const agnosticEvents = unix.IN_MOVED_TO | unix.IN_MOVED_FROM |
+		unix.IN_CREATE | unix.IN_ATTRIB | unix.IN_MODIFY |
+		unix.IN_MOVE_SELF | unix.IN_DELETE | unix.IN_DELETE_SELF
+
+	var flags uint32 = agnosticEvents
+
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	watchEntry := w.watches[name]
+	if watchEntry != nil {
+		flags |= watchEntry.flags | unix.IN_MASK_ADD
+	}
+	wd, errno := unix.InotifyAddWatch(w.fd, name, flags)
+	if wd == -1 {
+		return errno
+	}
+
+	if watchEntry == nil {
+		w.watches[name] = &watch{wd: uint32(wd), flags: flags}
+		w.paths[wd] = name
+	} else {
+		watchEntry.wd = uint32(wd)
+		watchEntry.flags = flags
+	}
+
+	return nil
+}
+
+// Remove stops watching the named file or directory (non-recursively).
+func (w *Watcher) Remove(name string) error {
+	name = filepath.Clean(name)
+
+	// Fetch the watch.
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	watch, ok := w.watches[name]
+
+	// Remove it from inotify.
+	if !ok {
+		return fmt.Errorf("can't remove non-existent inotify watch for: %s", name)
+	}
+
+	// We successfully removed the watch if InotifyRmWatch doesn't return an
+	// error, we need to clean up our internal state to ensure it matches
+	// inotify's kernel state.
+	delete(w.paths, int(watch.wd))
+	delete(w.watches, name)
+
+	// inotify_rm_watch will return EINVAL if the file has been deleted;
+	// the inotify will already have been removed.
+	// watches and pathes are deleted in ignoreLinux() implicitly and asynchronously
+	// by calling inotify_rm_watch() below. e.g. readEvents() goroutine receives IN_IGNORE
+	// so that EINVAL means that the wd is being rm_watch()ed or its file removed
+	// by another thread and we have not received IN_IGNORE event.
+	success, errno := unix.InotifyRmWatch(w.fd, watch.wd)
+	if success == -1 {
+		// TODO: Perhaps it's not helpful to return an error here in every case.
+		// the only two possible errors are:
+		// EBADF, which happens when w.fd is not a valid file descriptor of any kind.
+		// EINVAL, which is when fd is not an inotify descriptor or wd is not a valid watch descriptor.
+		// Watch descriptors are invalidated when they are removed explicitly or implicitly;
+		// explicitly by inotify_rm_watch, implicitly when the file they are watching is deleted.
+		return errno
+	}
+
+	return nil
+}
+
+type watch struct {
+	wd    uint32 // Watch descriptor (as returned by the inotify_add_watch() syscall)
+	flags uint32 // inotify flags of this watch (see inotify(7) for the list of valid flags)
+}
+
+// readEvents reads from the inotify file descriptor, converts the
+// received events into Event objects and sends them via the Events channel
+func (w *Watcher) readEvents() {
+	var (
+		buf   [unix.SizeofInotifyEvent * 4096]byte // Buffer for a maximum of 4096 raw events
+		n     int                                  // Number of bytes read with read()
+		errno error                                // Syscall errno
+		ok    bool                                 // For poller.wait
+	)
+
+	defer close(w.doneResp)
+	defer close(w.Errors)
+	defer close(w.Events)
+	defer unix.Close(w.fd)
+	defer w.poller.close()
+
+	for {
+		// See if we have been closed.
+		if w.isClosed() {
+			return
+		}
+
+		ok, errno = w.poller.wait()
+		if errno != nil {
+			select {
+			case w.Errors <- errno:
+			case <-w.done:
+				return
+			}
+			continue
+		}
+
+		if !ok {
+			continue
+		}
+
+		n, errno = unix.Read(w.fd, buf[:])
+		// If a signal interrupted execution, see if we've been asked to close, and try again.
+		// http://man7.org/linux/man-pages/man7/signal.7.html :
+		// "Before Linux 3.8, reads from an inotify(7) file descriptor were not restartable"
+		if errno == unix.EINTR {
+			continue
+		}
+
+		// unix.Read might have been woken up by Close. If so, we're done.
+		if w.isClosed() {
+			return
+		}
+
+		if n < unix.SizeofInotifyEvent {
+			var err error
+			if n == 0 {
+				// If EOF is received. This should really never happen.
+				err = io.EOF
+			} else if n < 0 {
+				// If an error occurred while reading.
+				err = errno
+			} else {
+				// Read was too short.
+				err = errors.New("notify: short read in readEvents()")
+			}
+			select {
+			case w.Errors <- err:
+			case <-w.done:
+				return
+			}
+			continue
+		}
+
+		var offset uint32
+		// We don't know how many events we just read into the buffer
+		// While the offset points to at least one whole event...
+		for offset <= uint32(n-unix.SizeofInotifyEvent) {
+			// Point "raw" to the event in the buffer
+			raw := (*unix.InotifyEvent)(unsafe.Pointer(&buf[offset]))
+
+			mask := uint32(raw.Mask)
+			nameLen := uint32(raw.Len)
+
+			if mask&unix.IN_Q_OVERFLOW != 0 {
+				select {
+				case w.Errors <- ErrEventOverflow:
+				case <-w.done:
+					return
+				}
+			}
+
+			// If the event happened to the watched directory or the watched file, the kernel
+			// doesn't append the filename to the event, but we would like to always fill the
+			// the "Name" field with a valid filename. We retrieve the path of the watch from
+			// the "paths" map.
+			w.mu.Lock()
+			name, ok := w.paths[int(raw.Wd)]
+			// IN_DELETE_SELF occurs when the file/directory being watched is removed.
+			// This is a sign to clean up the maps, otherwise we are no longer in sync
+			// with the inotify kernel state which has already deleted the watch
+			// automatically.
+			if ok && mask&unix.IN_DELETE_SELF == unix.IN_DELETE_SELF {
+				delete(w.paths, int(raw.Wd))
+				delete(w.watches, name)
+			}
+			w.mu.Unlock()
+
+			if nameLen > 0 {
+				// Point "bytes" at the first byte of the filename
+				bytes := (*[unix.PathMax]byte)(unsafe.Pointer(&buf[offset+unix.SizeofInotifyEvent]))
+				// The filename is padded with NULL bytes. TrimRight() gets rid of those.
+				name += "/" + strings.TrimRight(string(bytes[0:nameLen]), "\000")
+			}
+
+			event := newEvent(name, mask)
+
+			// Send the events that are not ignored on the events channel
+			if !event.ignoreLinux(mask) {
+				select {
+				case w.Events <- event:
+				case <-w.done:
+					return
+				}
+			}
+
+			// Move to the next event in the buffer
+			offset += unix.SizeofInotifyEvent + nameLen
+		}
+	}
+}
+
+// Certain types of events can be "ignored" and not sent over the Events
+// channel. Such as events marked ignore by the kernel, or MODIFY events
+// against files that do not exist.
+func (e *Event) ignoreLinux(mask uint32) bool {
+	// Ignore anything the inotify API says to ignore
+	if mask&unix.IN_IGNORED == unix.IN_IGNORED {
+		return true
+	}
+
+	// If the event is not a DELETE or RENAME, the file must exist.
+	// Otherwise the event is ignored.
+	// *Note*: this was put in place because it was seen that a MODIFY
+	// event was sent after the DELETE. This ignores that MODIFY and
+	// assumes a DELETE will come or has come if the file doesn't exist.
+	if !(e.Op&Remove == Remove || e.Op&Rename == Rename) {
+		_, statErr := os.Lstat(e.Name)
+		return os.IsNotExist(statErr)
+	}
+	return false
+}
+
+// newEvent returns an platform-independent Event based on an inotify mask.
+func newEvent(name string, mask uint32) Event {
+	e := Event{Name: name}
+	if mask&unix.IN_CREATE == unix.IN_CREATE || mask&unix.IN_MOVED_TO == unix.IN_MOVED_TO {
+		e.Op |= Create
+	}
+	if mask&unix.IN_DELETE_SELF == unix.IN_DELETE_SELF || mask&unix.IN_DELETE == unix.IN_DELETE {
+		e.Op |= Remove
+	}
+	if mask&unix.IN_MODIFY == unix.IN_MODIFY {
+		e.Op |= Write
+	}
+	if mask&unix.IN_MOVE_SELF == unix.IN_MOVE_SELF || mask&unix.IN_MOVED_FROM == unix.IN_MOVED_FROM {
+		e.Op |= Rename
+	}
+	if mask&unix.IN_ATTRIB == unix.IN_ATTRIB {
+		e.Op |= Chmod
+	}
+	return e
+}

vendor/github.com/fsnotify/fsnotify/inotify_poller.go

@@ -0,0 +1,187 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+
+package fsnotify
+
+import (
+	"errors"
+
+	"golang.org/x/sys/unix"
+)
+
+type fdPoller struct {
+	fd   int    // File descriptor (as returned by the inotify_init() syscall)
+	epfd int    // Epoll file descriptor
+	pipe [2]int // Pipe for waking up
+}
+
+func emptyPoller(fd int) *fdPoller {
+	poller := new(fdPoller)
+	poller.fd = fd
+	poller.epfd = -1
+	poller.pipe[0] = -1
+	poller.pipe[1] = -1
+	return poller
+}
+
+// Create a new inotify poller.
+// This creates an inotify handler, and an epoll handler.
+func newFdPoller(fd int) (*fdPoller, error) {
+	var errno error
+	poller := emptyPoller(fd)
+	defer func() {
+		if errno != nil {
+			poller.close()
+		}
+	}()
+	poller.fd = fd
+
+	// Create epoll fd
+	poller.epfd, errno = unix.EpollCreate1(unix.EPOLL_CLOEXEC)
+	if poller.epfd == -1 {
+		return nil, errno
+	}
+	// Create pipe; pipe[0] is the read end, pipe[1] the write end.
+	errno = unix.Pipe2(poller.pipe[:], unix.O_NONBLOCK|unix.O_CLOEXEC)
+	if errno != nil {
+		return nil, errno
+	}
+
+	// Register inotify fd with epoll
+	event := unix.EpollEvent{
+		Fd:     int32(poller.fd),
+		Events: unix.EPOLLIN,
+	}
+	errno = unix.EpollCtl(poller.epfd, unix.EPOLL_CTL_ADD, poller.fd, &event)
+	if errno != nil {
+		return nil, errno
+	}
+
+	// Register pipe fd with epoll
+	event = unix.EpollEvent{
+		Fd:     int32(poller.pipe[0]),
+		Events: unix.EPOLLIN,
+	}
+	errno = unix.EpollCtl(poller.epfd, unix.EPOLL_CTL_ADD, poller.pipe[0], &event)
+	if errno != nil {
+		return nil, errno
+	}
+
+	return poller, nil
+}
+
+// Wait using epoll.
+// Returns true if something is ready to be read,
+// false if there is not.
+func (poller *fdPoller) wait() (bool, error) {
+	// 3 possible events per fd, and 2 fds, makes a maximum of 6 events.
+	// I don't know whether epoll_wait returns the number of events returned,
+	// or the total number of events ready.
+	// I decided to catch both by making the buffer one larger than the maximum.
+	events := make([]unix.EpollEvent, 7)
+	for {
+		n, errno := unix.EpollWait(poller.epfd, events, -1)
+		if n == -1 {
+			if errno == unix.EINTR {
+				continue
+			}
+			return false, errno
+		}
+		if n == 0 {
+			// If there are no events, try again.
+			continue
+		}
+		if n > 6 {
+			// This should never happen. More events were returned than should be possible.
+			return false, errors.New("epoll_wait returned more events than I know what to do with")
+		}
+		ready := events[:n]
+		epollhup := false
+		epollerr := false
+		epollin := false
+		for _, event := range ready {
+			if event.Fd == int32(poller.fd) {
+				if event.Events&unix.EPOLLHUP != 0 {
+					// This should not happen, but if it does, treat it as a wakeup.
+					epollhup = true
+				}
+				if event.Events&unix.EPOLLERR != 0 {
+					// If an error is waiting on the file descriptor, we should pretend
+					// something is ready to read, and let unix.Read pick up the error.
+					epollerr = true
+				}
+				if event.Events&unix.EPOLLIN != 0 {
+					// There is data to read.
+					epollin = true
+				}
+			}
+			if event.Fd == int32(poller.pipe[0]) {
+				if event.Events&unix.EPOLLHUP != 0 {
+					// Write pipe descriptor was closed, by us. This means we're closing down the
+					// watcher, and we should wake up.
+				}
+				if event.Events&unix.EPOLLERR != 0 {
+					// If an error is waiting on the pipe file descriptor.
+					// This is an absolute mystery, and should never ever happen.
+					return false, errors.New("Error on the pipe descriptor.")
+				}
+				if event.Events&unix.EPOLLIN != 0 {
+					// This is a regular wakeup, so we have to clear the buffer.
+					err := poller.clearWake()
+					if err != nil {
+						return false, err
+					}
+				}
+			}
+		}
+
+		if epollhup || epollerr || epollin {
+			return true, nil
+		}
+		return false, nil
+	}
+}
+
+// Close the write end of the poller.
+func (poller *fdPoller) wake() error {
+	buf := make([]byte, 1)
+	n, errno := unix.Write(poller.pipe[1], buf)
+	if n == -1 {
+		if errno == unix.EAGAIN {
+			// Buffer is full, poller will wake.
+			return nil
+		}
+		return errno
+	}
+	return nil
+}
+
+func (poller *fdPoller) clearWake() error {
+	// You have to be woken up a LOT in order to get to 100!
+	buf := make([]byte, 100)
+	n, errno := unix.Read(poller.pipe[0], buf)
+	if n == -1 {
+		if errno == unix.EAGAIN {
+			// Buffer is empty, someone else cleared our wake.
+			return nil
+		}
+		return errno
+	}
+	return nil
+}
+
+// Close all poller file descriptors, but not the one passed to it.
+func (poller *fdPoller) close() {
+	if poller.pipe[1] != -1 {
+		unix.Close(poller.pipe[1])
+	}
+	if poller.pipe[0] != -1 {
+		unix.Close(poller.pipe[0])
+	}
+	if poller.epfd != -1 {
+		unix.Close(poller.epfd)
+	}
+}

vendor/github.com/fsnotify/fsnotify/kqueue.go

@@ -0,0 +1,521 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd openbsd netbsd dragonfly darwin
+
+package fsnotify
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"golang.org/x/sys/unix"
+)
+
+// Watcher watches a set of files, delivering events to a channel.
+type Watcher struct {
+	Events chan Event
+	Errors chan error
+	done   chan struct{} // Channel for sending a "quit message" to the reader goroutine
+
+	kq int // File descriptor (as returned by the kqueue() syscall).
+
+	mu              sync.Mutex        // Protects access to watcher data
+	watches         map[string]int    // Map of watched file descriptors (key: path).
+	externalWatches map[string]bool   // Map of watches added by user of the library.
+	dirFlags        map[string]uint32 // Map of watched directories to fflags used in kqueue.
+	paths           map[int]pathInfo  // Map file descriptors to path names for processing kqueue events.
+	fileExists      map[string]bool   // Keep track of if we know this file exists (to stop duplicate create events).
+	isClosed        bool              // Set to true when Close() is first called
+}
+
+type pathInfo struct {
+	name  string
+	isDir bool
+}
+
+// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
+func NewWatcher() (*Watcher, error) {
+	kq, err := kqueue()
+	if err != nil {
+		return nil, err
+	}
+
+	w := &Watcher{
+		kq:              kq,
+		watches:         make(map[string]int),
+		dirFlags:        make(map[string]uint32),
+		paths:           make(map[int]pathInfo),
+		fileExists:      make(map[string]bool),
+		externalWatches: make(map[string]bool),
+		Events:          make(chan Event),
+		Errors:          make(chan error),
+		done:            make(chan struct{}),
+	}
+
+	go w.readEvents()
+	return w, nil
+}
+
+// Close removes all watches and closes the events channel.
+func (w *Watcher) Close() error {
+	w.mu.Lock()
+	if w.isClosed {
+		w.mu.Unlock()
+		return nil
+	}
+	w.isClosed = true
+
+	// copy paths to remove while locked
+	var pathsToRemove = make([]string, 0, len(w.watches))
+	for name := range w.watches {
+		pathsToRemove = append(pathsToRemove, name)
+	}
+	w.mu.Unlock()
+	// unlock before calling Remove, which also locks
+
+	for _, name := range pathsToRemove {
+		w.Remove(name)
+	}
+
+	// send a "quit" message to the reader goroutine
+	close(w.done)
+
+	return nil
+}
+
+// Add starts watching the named file or directory (non-recursively).
+func (w *Watcher) Add(name string) error {
+	w.mu.Lock()
+	w.externalWatches[name] = true
+	w.mu.Unlock()
+	_, err := w.addWatch(name, noteAllEvents)
+	return err
+}
+
+// Remove stops watching the the named file or directory (non-recursively).
+func (w *Watcher) Remove(name string) error {
+	name = filepath.Clean(name)
+	w.mu.Lock()
+	watchfd, ok := w.watches[name]
+	w.mu.Unlock()
+	if !ok {
+		return fmt.Errorf("can't remove non-existent kevent watch for: %s", name)
+	}
+
+	const registerRemove = unix.EV_DELETE
+	if err := register(w.kq, []int{watchfd}, registerRemove, 0); err != nil {
+		return err
+	}
+
+	unix.Close(watchfd)
+
+	w.mu.Lock()
+	isDir := w.paths[watchfd].isDir
+	delete(w.watches, name)
+	delete(w.paths, watchfd)
+	delete(w.dirFlags, name)
+	w.mu.Unlock()
+
+	// Find all watched paths that are in this directory that are not external.
+	if isDir {
+		var pathsToRemove []string
+		w.mu.Lock()
+		for _, path := range w.paths {
+			wdir, _ := filepath.Split(path.name)
+			if filepath.Clean(wdir) == name {
+				if !w.externalWatches[path.name] {
+					pathsToRemove = append(pathsToRemove, path.name)
+				}
+			}
+		}
+		w.mu.Unlock()
+		for _, name := range pathsToRemove {
+			// Since these are internal, not much sense in propagating error
+			// to the user, as that will just confuse them with an error about
+			// a path they did not explicitly watch themselves.
+			w.Remove(name)
+		}
+	}
+
+	return nil
+}
+
+// Watch all events (except NOTE_EXTEND, NOTE_LINK, NOTE_REVOKE)
+const noteAllEvents = unix.NOTE_DELETE | unix.NOTE_WRITE | unix.NOTE_ATTRIB | unix.NOTE_RENAME
+
+// keventWaitTime to block on each read from kevent
+var keventWaitTime = durationToTimespec(100 * time.Millisecond)
+
+// addWatch adds name to the watched file set.
+// The flags are interpreted as described in kevent(2).
+// Returns the real path to the file which was added, if any, which may be different from the one passed in the case of symlinks.
+func (w *Watcher) addWatch(name string, flags uint32) (string, error) {
+	var isDir bool
+	// Make ./name and name equivalent
+	name = filepath.Clean(name)
+
+	w.mu.Lock()
+	if w.isClosed {
+		w.mu.Unlock()
+		return "", errors.New("kevent instance already closed")
+	}
+	watchfd, alreadyWatching := w.watches[name]
+	// We already have a watch, but we can still override flags.
+	if alreadyWatching {
+		isDir = w.paths[watchfd].isDir
+	}
+	w.mu.Unlock()
+
+	if !alreadyWatching {
+		fi, err := os.Lstat(name)
+		if err != nil {
+			return "", err
+		}
+
+		// Don't watch sockets.
+		if fi.Mode()&os.ModeSocket == os.ModeSocket {
+			return "", nil
+		}
+
+		// Don't watch named pipes.
+		if fi.Mode()&os.ModeNamedPipe == os.ModeNamedPipe {
+			return "", nil
+		}
+
+		// Follow Symlinks
+		// Unfortunately, Linux can add bogus symlinks to watch list without
+		// issue, and Windows can't do symlinks period (AFAIK). To  maintain
+		// consistency, we will act like everything is fine. There will simply
+		// be no file events for broken symlinks.
+		// Hence the returns of nil on errors.
+		if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
+			name, err = filepath.EvalSymlinks(name)
+			if err != nil {
+				return "", nil
+			}
+
+			w.mu.Lock()
+			_, alreadyWatching = w.watches[name]
+			w.mu.Unlock()
+
+			if alreadyWatching {
+				return name, nil
+			}
+
+			fi, err = os.Lstat(name)
+			if err != nil {
+				return "", nil
+			}
+		}
+
+		watchfd, err = unix.Open(name, openMode, 0700)
+		if watchfd == -1 {
+			return "", err
+		}
+
+		isDir = fi.IsDir()
+	}
+
+	const registerAdd = unix.EV_ADD | unix.EV_CLEAR | unix.EV_ENABLE
+	if err := register(w.kq, []int{watchfd}, registerAdd, flags); err != nil {
+		unix.Close(watchfd)
+		return "", err
+	}
+
+	if !alreadyWatching {
+		w.mu.Lock()
+		w.watches[name] = watchfd
+		w.paths[watchfd] = pathInfo{name: name, isDir: isDir}
+		w.mu.Unlock()
+	}
+
+	if isDir {
+		// Watch the directory if it has not been watched before,
+		// or if it was watched before, but perhaps only a NOTE_DELETE (watchDirectoryFiles)
+		w.mu.Lock()
+
+		watchDir := (flags&unix.NOTE_WRITE) == unix.NOTE_WRITE &&
+			(!alreadyWatching || (w.dirFlags[name]&unix.NOTE_WRITE) != unix.NOTE_WRITE)
+		// Store flags so this watch can be updated later
+		w.dirFlags[name] = flags
+		w.mu.Unlock()
+
+		if watchDir {
+			if err := w.watchDirectoryFiles(name); err != nil {
+				return "", err
+			}
+		}
+	}
+	return name, nil
+}
+
+// readEvents reads from kqueue and converts the received kevents into
+// Event values that it sends down the Events channel.
+func (w *Watcher) readEvents() {
+	eventBuffer := make([]unix.Kevent_t, 10)
+
+loop:
+	for {
+		// See if there is a message on the "done" channel
+		select {
+		case <-w.done:
+			break loop
+		default:
+		}
+
+		// Get new events
+		kevents, err := read(w.kq, eventBuffer, &keventWaitTime)
+		// EINTR is okay, the syscall was interrupted before timeout expired.
+		if err != nil && err != unix.EINTR {
+			select {
+			case w.Errors <- err:
+			case <-w.done:
+				break loop
+			}
+			continue
+		}
+
+		// Flush the events we received to the Events channel
+		for len(kevents) > 0 {
+			kevent := &kevents[0]
+			watchfd := int(kevent.Ident)
+			mask := uint32(kevent.Fflags)
+			w.mu.Lock()
+			path := w.paths[watchfd]
+			w.mu.Unlock()
+			event := newEvent(path.name, mask)
+
+			if path.isDir && !(event.Op&Remove == Remove) {
+				// Double check to make sure the directory exists. This can happen when
+				// we do a rm -fr on a recursively watched folders and we receive a
+				// modification event first but the folder has been deleted and later
+				// receive the delete event
+				if _, err := os.Lstat(event.Name); os.IsNotExist(err) {
+					// mark is as delete event
+					event.Op |= Remove
+				}
+			}
+
+			if event.Op&Rename == Rename || event.Op&Remove == Remove {
+				w.Remove(event.Name)
+				w.mu.Lock()
+				delete(w.fileExists, event.Name)
+				w.mu.Unlock()
+			}
+
+			if path.isDir && event.Op&Write == Write && !(event.Op&Remove == Remove) {
+				w.sendDirectoryChangeEvents(event.Name)
+			} else {
+				// Send the event on the Events channel.
+				select {
+				case w.Events <- event:
+				case <-w.done:
+					break loop
+				}
+			}
+
+			if event.Op&Remove == Remove {
+				// Look for a file that may have overwritten this.
+				// For example, mv f1 f2 will delete f2, then create f2.
+				if path.isDir {
+					fileDir := filepath.Clean(event.Name)
+					w.mu.Lock()
+					_, found := w.watches[fileDir]
+					w.mu.Unlock()
+					if found {
+						// make sure the directory exists before we watch for changes. When we
+						// do a recursive watch and perform rm -fr, the parent directory might
+						// have gone missing, ignore the missing directory and let the
+						// upcoming delete event remove the watch from the parent directory.
+						if _, err := os.Lstat(fileDir); err == nil {
+							w.sendDirectoryChangeEvents(fileDir)
+						}
+					}
+				} else {
+					filePath := filepath.Clean(event.Name)
+					if fileInfo, err := os.Lstat(filePath); err == nil {
+						w.sendFileCreatedEventIfNew(filePath, fileInfo)
+					}
+				}
+			}
+
+			// Move to next event
+			kevents = kevents[1:]
+		}
+	}
+
+	// cleanup
+	err := unix.Close(w.kq)
+	if err != nil {
+		// only way the previous loop breaks is if w.done was closed so we need to async send to w.Errors.
+		select {
+		case w.Errors <- err:
+		default:
+		}
+	}
+	close(w.Events)
+	close(w.Errors)
+}
+
+// newEvent returns an platform-independent Event based on kqueue Fflags.
+func newEvent(name string, mask uint32) Event {
+	e := Event{Name: name}
+	if mask&unix.NOTE_DELETE == unix.NOTE_DELETE {
+		e.Op |= Remove
+	}
+	if mask&unix.NOTE_WRITE == unix.NOTE_WRITE {
+		e.Op |= Write
+	}
+	if mask&unix.NOTE_RENAME == unix.NOTE_RENAME {
+		e.Op |= Rename
+	}
+	if mask&unix.NOTE_ATTRIB == unix.NOTE_ATTRIB {
+		e.Op |= Chmod
+	}
+	return e
+}
+
+func newCreateEvent(name string) Event {
+	return Event{Name: name, Op: Create}
+}
+
+// watchDirectoryFiles to mimic inotify when adding a watch on a directory
+func (w *Watcher) watchDirectoryFiles(dirPath string) error {
+	// Get all files
+	files, err := ioutil.ReadDir(dirPath)
+	if err != nil {
+		return err
+	}
+
+	for _, fileInfo := range files {
+		filePath := filepath.Join(dirPath, fileInfo.Name())
+		filePath, err = w.internalWatch(filePath, fileInfo)
+		if err != nil {
+			return err
+		}
+
+		w.mu.Lock()
+		w.fileExists[filePath] = true
+		w.mu.Unlock()
+	}
+
+	return nil
+}
+
+// sendDirectoryEvents searches the directory for newly created files
+// and sends them over the event channel. This functionality is to have
+// the BSD version of fsnotify match Linux inotify which provides a
+// create event for files created in a watched directory.
+func (w *Watcher) sendDirectoryChangeEvents(dirPath string) {
+	// Get all files
+	files, err := ioutil.ReadDir(dirPath)
+	if err != nil {
+		select {
+		case w.Errors <- err:
+		case <-w.done:
+			return
+		}
+	}
+
+	// Search for new files
+	for _, fileInfo := range files {
+		filePath := filepath.Join(dirPath, fileInfo.Name())
+		err := w.sendFileCreatedEventIfNew(filePath, fileInfo)
+
+		if err != nil {
+			return
+		}
+	}
+}
+
+// sendFileCreatedEvent sends a create event if the file isn't already being tracked.
+func (w *Watcher) sendFileCreatedEventIfNew(filePath string, fileInfo os.FileInfo) (err error) {
+	w.mu.Lock()
+	_, doesExist := w.fileExists[filePath]
+	w.mu.Unlock()
+	if !doesExist {
+		// Send create event
+		select {
+		case w.Events <- newCreateEvent(filePath):
+		case <-w.done:
+			return
+		}
+	}
+
+	// like watchDirectoryFiles (but without doing another ReadDir)
+	filePath, err = w.internalWatch(filePath, fileInfo)
+	if err != nil {
+		return err
+	}
+
+	w.mu.Lock()
+	w.fileExists[filePath] = true
+	w.mu.Unlock()
+
+	return nil
+}
+
+func (w *Watcher) internalWatch(name string, fileInfo os.FileInfo) (string, error) {
+	if fileInfo.IsDir() {
+		// mimic Linux providing delete events for subdirectories
+		// but preserve the flags used if currently watching subdirectory
+		w.mu.Lock()
+		flags := w.dirFlags[name]
+		w.mu.Unlock()
+
+		flags |= unix.NOTE_DELETE | unix.NOTE_RENAME
+		return w.addWatch(name, flags)
+	}
+
+	// watch file to mimic Linux inotify
+	return w.addWatch(name, noteAllEvents)
+}
+
+// kqueue creates a new kernel event queue and returns a descriptor.
+func kqueue() (kq int, err error) {
+	kq, err = unix.Kqueue()
+	if kq == -1 {
+		return kq, err
+	}
+	return kq, nil
+}
+
+// register events with the queue
+func register(kq int, fds []int, flags int, fflags uint32) error {
+	changes := make([]unix.Kevent_t, len(fds))
+
+	for i, fd := range fds {
+		// SetKevent converts int to the platform-specific types:
+		unix.SetKevent(&changes[i], fd, unix.EVFILT_VNODE, flags)
+		changes[i].Fflags = fflags
+	}
+
+	// register the events
+	success, err := unix.Kevent(kq, changes, nil, nil)
+	if success == -1 {
+		return err
+	}
+	return nil
+}
+
+// read retrieves pending events, or waits until an event occurs.
+// A timeout of nil blocks indefinitely, while 0 polls the queue.
+func read(kq int, events []unix.Kevent_t, timeout *unix.Timespec) ([]unix.Kevent_t, error) {
+	n, err := unix.Kevent(kq, nil, events, timeout)
+	if err != nil {
+		return nil, err
+	}
+	return events[0:n], nil
+}
+
+// durationToTimespec prepares a timeout value
+func durationToTimespec(d time.Duration) unix.Timespec {
+	return unix.NsecToTimespec(d.Nanoseconds())
+}

vendor/github.com/fsnotify/fsnotify/open_mode_bsd.go

@@ -0,0 +1,11 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd openbsd netbsd dragonfly
+
+package fsnotify
+
+import "golang.org/x/sys/unix"
+
+const openMode = unix.O_NONBLOCK | unix.O_RDONLY | unix.O_CLOEXEC

vendor/github.com/fsnotify/fsnotify/open_mode_darwin.go

@@ -0,0 +1,12 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin
+
+package fsnotify
+
+import "golang.org/x/sys/unix"
+
+// note: this constant is not defined on BSD
+const openMode = unix.O_EVTONLY | unix.O_CLOEXEC

vendor/github.com/fsnotify/fsnotify/windows.go

@@ -0,0 +1,561 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package fsnotify
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"sync"
+	"syscall"
+	"unsafe"
+)
+
+// Watcher watches a set of files, delivering events to a channel.
+type Watcher struct {
+	Events   chan Event
+	Errors   chan error
+	isClosed bool           // Set to true when Close() is first called
+	mu       sync.Mutex     // Map access
+	port     syscall.Handle // Handle to completion port
+	watches  watchMap       // Map of watches (key: i-number)
+	input    chan *input    // Inputs to the reader are sent on this channel
+	quit     chan chan<- error
+}
+
+// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
+func NewWatcher() (*Watcher, error) {
+	port, e := syscall.CreateIoCompletionPort(syscall.InvalidHandle, 0, 0, 0)
+	if e != nil {
+		return nil, os.NewSyscallError("CreateIoCompletionPort", e)
+	}
+	w := &Watcher{
+		port:    port,
+		watches: make(watchMap),
+		input:   make(chan *input, 1),
+		Events:  make(chan Event, 50),
+		Errors:  make(chan error),
+		quit:    make(chan chan<- error, 1),
+	}
+	go w.readEvents()
+	return w, nil
+}
+
+// Close removes all watches and closes the events channel.
+func (w *Watcher) Close() error {
+	if w.isClosed {
+		return nil
+	}
+	w.isClosed = true
+
+	// Send "quit" message to the reader goroutine
+	ch := make(chan error)
+	w.quit <- ch
+	if err := w.wakeupReader(); err != nil {
+		return err
+	}
+	return <-ch
+}
+
+// Add starts watching the named file or directory (non-recursively).
+func (w *Watcher) Add(name string) error {
+	if w.isClosed {
+		return errors.New("watcher already closed")
+	}
+	in := &input{
+		op:    opAddWatch,
+		path:  filepath.Clean(name),
+		flags: sysFSALLEVENTS,
+		reply: make(chan error),
+	}
+	w.input <- in
+	if err := w.wakeupReader(); err != nil {
+		return err
+	}
+	return <-in.reply
+}
+
+// Remove stops watching the the named file or directory (non-recursively).
+func (w *Watcher) Remove(name string) error {
+	in := &input{
+		op:    opRemoveWatch,
+		path:  filepath.Clean(name),
+		reply: make(chan error),
+	}
+	w.input <- in
+	if err := w.wakeupReader(); err != nil {
+		return err
+	}
+	return <-in.reply
+}
+
+const (
+	// Options for AddWatch
+	sysFSONESHOT = 0x80000000
+	sysFSONLYDIR = 0x1000000
+
+	// Events
+	sysFSACCESS     = 0x1
+	sysFSALLEVENTS  = 0xfff
+	sysFSATTRIB     = 0x4
+	sysFSCLOSE      = 0x18
+	sysFSCREATE     = 0x100
+	sysFSDELETE     = 0x200
+	sysFSDELETESELF = 0x400
+	sysFSMODIFY     = 0x2
+	sysFSMOVE       = 0xc0
+	sysFSMOVEDFROM  = 0x40
+	sysFSMOVEDTO    = 0x80
+	sysFSMOVESELF   = 0x800
+
+	// Special events
+	sysFSIGNORED   = 0x8000
+	sysFSQOVERFLOW = 0x4000
+)
+
+func newEvent(name string, mask uint32) Event {
+	e := Event{Name: name}
+	if mask&sysFSCREATE == sysFSCREATE || mask&sysFSMOVEDTO == sysFSMOVEDTO {
+		e.Op |= Create
+	}
+	if mask&sysFSDELETE == sysFSDELETE || mask&sysFSDELETESELF == sysFSDELETESELF {
+		e.Op |= Remove
+	}
+	if mask&sysFSMODIFY == sysFSMODIFY {
+		e.Op |= Write
+	}
+	if mask&sysFSMOVE == sysFSMOVE || mask&sysFSMOVESELF == sysFSMOVESELF || mask&sysFSMOVEDFROM == sysFSMOVEDFROM {
+		e.Op |= Rename
+	}
+	if mask&sysFSATTRIB == sysFSATTRIB {
+		e.Op |= Chmod
+	}
+	return e
+}
+
+const (
+	opAddWatch = iota
+	opRemoveWatch
+)
+
+const (
+	provisional uint64 = 1 << (32 + iota)
+)
+
+type input struct {
+	op    int
+	path  string
+	flags uint32
+	reply chan error
+}
+
+type inode struct {
+	handle syscall.Handle
+	volume uint32
+	index  uint64
+}
+
+type watch struct {
+	ov     syscall.Overlapped
+	ino    *inode            // i-number
+	path   string            // Directory path
+	mask   uint64            // Directory itself is being watched with these notify flags
+	names  map[string]uint64 // Map of names being watched and their notify flags
+	rename string            // Remembers the old name while renaming a file
+	buf    [4096]byte
+}
+
+type indexMap map[uint64]*watch
+type watchMap map[uint32]indexMap
+
+func (w *Watcher) wakeupReader() error {
+	e := syscall.PostQueuedCompletionStatus(w.port, 0, 0, nil)
+	if e != nil {
+		return os.NewSyscallError("PostQueuedCompletionStatus", e)
+	}
+	return nil
+}
+
+func getDir(pathname string) (dir string, err error) {
+	attr, e := syscall.GetFileAttributes(syscall.StringToUTF16Ptr(pathname))
+	if e != nil {
+		return "", os.NewSyscallError("GetFileAttributes", e)
+	}
+	if attr&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
+		dir = pathname
+	} else {
+		dir, _ = filepath.Split(pathname)
+		dir = filepath.Clean(dir)
+	}
+	return
+}
+
+func getIno(path string) (ino *inode, err error) {
+	h, e := syscall.CreateFile(syscall.StringToUTF16Ptr(path),
+		syscall.FILE_LIST_DIRECTORY,
+		syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
+		nil, syscall.OPEN_EXISTING,
+		syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OVERLAPPED, 0)
+	if e != nil {
+		return nil, os.NewSyscallError("CreateFile", e)
+	}
+	var fi syscall.ByHandleFileInformation
+	if e = syscall.GetFileInformationByHandle(h, &fi); e != nil {
+		syscall.CloseHandle(h)
+		return nil, os.NewSyscallError("GetFileInformationByHandle", e)
+	}
+	ino = &inode{
+		handle: h,
+		volume: fi.VolumeSerialNumber,
+		index:  uint64(fi.FileIndexHigh)<<32 | uint64(fi.FileIndexLow),
+	}
+	return ino, nil
+}
+
+// Must run within the I/O thread.
+func (m watchMap) get(ino *inode) *watch {
+	if i := m[ino.volume]; i != nil {
+		return i[ino.index]
+	}
+	return nil
+}
+
+// Must run within the I/O thread.
+func (m watchMap) set(ino *inode, watch *watch) {
+	i := m[ino.volume]
+	if i == nil {
+		i = make(indexMap)
+		m[ino.volume] = i
+	}
+	i[ino.index] = watch
+}
+
+// Must run within the I/O thread.
+func (w *Watcher) addWatch(pathname string, flags uint64) error {
+	dir, err := getDir(pathname)
+	if err != nil {
+		return err
+	}
+	if flags&sysFSONLYDIR != 0 && pathname != dir {
+		return nil
+	}
+	ino, err := getIno(dir)
+	if err != nil {
+		return err
+	}
+	w.mu.Lock()
+	watchEntry := w.watches.get(ino)
+	w.mu.Unlock()
+	if watchEntry == nil {
+		if _, e := syscall.CreateIoCompletionPort(ino.handle, w.port, 0, 0); e != nil {
+			syscall.CloseHandle(ino.handle)
+			return os.NewSyscallError("CreateIoCompletionPort", e)
+		}
+		watchEntry = &watch{
+			ino:   ino,
+			path:  dir,
+			names: make(map[string]uint64),
+		}
+		w.mu.Lock()
+		w.watches.set(ino, watchEntry)
+		w.mu.Unlock()
+		flags |= provisional
+	} else {
+		syscall.CloseHandle(ino.handle)
+	}
+	if pathname == dir {
+		watchEntry.mask |= flags
+	} else {
+		watchEntry.names[filepath.Base(pathname)] |= flags
+	}
+	if err = w.startRead(watchEntry); err != nil {
+		return err
+	}
+	if pathname == dir {
+		watchEntry.mask &= ^provisional
+	} else {
+		watchEntry.names[filepath.Base(pathname)] &= ^provisional
+	}
+	return nil
+}
+
+// Must run within the I/O thread.
+func (w *Watcher) remWatch(pathname string) error {
+	dir, err := getDir(pathname)
+	if err != nil {
+		return err
+	}
+	ino, err := getIno(dir)
+	if err != nil {
+		return err
+	}
+	w.mu.Lock()
+	watch := w.watches.get(ino)
+	w.mu.Unlock()
+	if watch == nil {
+		return fmt.Errorf("can't remove non-existent watch for: %s", pathname)
+	}
+	if pathname == dir {
+		w.sendEvent(watch.path, watch.mask&sysFSIGNORED)
+		watch.mask = 0
+	} else {
+		name := filepath.Base(pathname)
+		w.sendEvent(filepath.Join(watch.path, name), watch.names[name]&sysFSIGNORED)
+		delete(watch.names, name)
+	}
+	return w.startRead(watch)
+}
+
+// Must run within the I/O thread.
+func (w *Watcher) deleteWatch(watch *watch) {
+	for name, mask := range watch.names {
+		if mask&provisional == 0 {
+			w.sendEvent(filepath.Join(watch.path, name), mask&sysFSIGNORED)
+		}
+		delete(watch.names, name)
+	}
+	if watch.mask != 0 {
+		if watch.mask&provisional == 0 {
+			w.sendEvent(watch.path, watch.mask&sysFSIGNORED)
+		}
+		watch.mask = 0
+	}
+}
+
+// Must run within the I/O thread.
+func (w *Watcher) startRead(watch *watch) error {
+	if e := syscall.CancelIo(watch.ino.handle); e != nil {
+		w.Errors <- os.NewSyscallError("CancelIo", e)
+		w.deleteWatch(watch)
+	}
+	mask := toWindowsFlags(watch.mask)
+	for _, m := range watch.names {
+		mask |= toWindowsFlags(m)
+	}
+	if mask == 0 {
+		if e := syscall.CloseHandle(watch.ino.handle); e != nil {
+			w.Errors <- os.NewSyscallError("CloseHandle", e)
+		}
+		w.mu.Lock()
+		delete(w.watches[watch.ino.volume], watch.ino.index)
+		w.mu.Unlock()
+		return nil
+	}
+	e := syscall.ReadDirectoryChanges(watch.ino.handle, &watch.buf[0],
+		uint32(unsafe.Sizeof(watch.buf)), false, mask, nil, &watch.ov, 0)
+	if e != nil {
+		err := os.NewSyscallError("ReadDirectoryChanges", e)
+		if e == syscall.ERROR_ACCESS_DENIED && watch.mask&provisional == 0 {
+			// Watched directory was probably removed
+			if w.sendEvent(watch.path, watch.mask&sysFSDELETESELF) {
+				if watch.mask&sysFSONESHOT != 0 {
+					watch.mask = 0
+				}
+			}
+			err = nil
+		}
+		w.deleteWatch(watch)
+		w.startRead(watch)
+		return err
+	}
+	return nil
+}
+
+// readEvents reads from the I/O completion port, converts the
+// received events into Event objects and sends them via the Events channel.
+// Entry point to the I/O thread.
+func (w *Watcher) readEvents() {
+	var (
+		n, key uint32
+		ov     *syscall.Overlapped
+	)
+	runtime.LockOSThread()
+
+	for {
+		e := syscall.GetQueuedCompletionStatus(w.port, &n, &key, &ov, syscall.INFINITE)
+		watch := (*watch)(unsafe.Pointer(ov))
+
+		if watch == nil {
+			select {
+			case ch := <-w.quit:
+				w.mu.Lock()
+				var indexes []indexMap
+				for _, index := range w.watches {
+					indexes = append(indexes, index)
+				}
+				w.mu.Unlock()
+				for _, index := range indexes {
+					for _, watch := range index {
+						w.deleteWatch(watch)
+						w.startRead(watch)
+					}
+				}
+				var err error
+				if e := syscall.CloseHandle(w.port); e != nil {
+					err = os.NewSyscallError("CloseHandle", e)
+				}
+				close(w.Events)
+				close(w.Errors)
+				ch <- err
+				return
+			case in := <-w.input:
+				switch in.op {
+				case opAddWatch:
+					in.reply <- w.addWatch(in.path, uint64(in.flags))
+				case opRemoveWatch:
+					in.reply <- w.remWatch(in.path)
+				}
+			default:
+			}
+			continue
+		}
+
+		switch e {
+		case syscall.ERROR_MORE_DATA:
+			if watch == nil {
+				w.Errors <- errors.New("ERROR_MORE_DATA has unexpectedly null lpOverlapped buffer")
+			} else {
+				// The i/o succeeded but the buffer is full.
+				// In theory we should be building up a full packet.
+				// In practice we can get away with just carrying on.
+				n = uint32(unsafe.Sizeof(watch.buf))
+			}
+		case syscall.ERROR_ACCESS_DENIED:
+			// Watched directory was probably removed
+			w.sendEvent(watch.path, watch.mask&sysFSDELETESELF)
+			w.deleteWatch(watch)
+			w.startRead(watch)
+			continue
+		case syscall.ERROR_OPERATION_ABORTED:
+			// CancelIo was called on this handle
+			continue
+		default:
+			w.Errors <- os.NewSyscallError("GetQueuedCompletionPort", e)
+			continue
+		case nil:
+		}
+
+		var offset uint32
+		for {
+			if n == 0 {
+				w.Events <- newEvent("", sysFSQOVERFLOW)
+				w.Errors <- errors.New("short read in readEvents()")
+				break
+			}
+
+			// Point "raw" to the event in the buffer
+			raw := (*syscall.FileNotifyInformation)(unsafe.Pointer(&watch.buf[offset]))
+			buf := (*[syscall.MAX_PATH]uint16)(unsafe.Pointer(&raw.FileName))
+			name := syscall.UTF16ToString(buf[:raw.FileNameLength/2])
+			fullname := filepath.Join(watch.path, name)
+
+			var mask uint64
+			switch raw.Action {
+			case syscall.FILE_ACTION_REMOVED:
+				mask = sysFSDELETESELF
+			case syscall.FILE_ACTION_MODIFIED:
+				mask = sysFSMODIFY
+			case syscall.FILE_ACTION_RENAMED_OLD_NAME:
+				watch.rename = name
+			case syscall.FILE_ACTION_RENAMED_NEW_NAME:
+				if watch.names[watch.rename] != 0 {
+					watch.names[name] |= watch.names[watch.rename]
+					delete(watch.names, watch.rename)
+					mask = sysFSMOVESELF
+				}
+			}
+
+			sendNameEvent := func() {
+				if w.sendEvent(fullname, watch.names[name]&mask) {
+					if watch.names[name]&sysFSONESHOT != 0 {
+						delete(watch.names, name)
+					}
+				}
+			}
+			if raw.Action != syscall.FILE_ACTION_RENAMED_NEW_NAME {
+				sendNameEvent()
+			}
+			if raw.Action == syscall.FILE_ACTION_REMOVED {
+				w.sendEvent(fullname, watch.names[name]&sysFSIGNORED)
+				delete(watch.names, name)
+			}
+			if w.sendEvent(fullname, watch.mask&toFSnotifyFlags(raw.Action)) {
+				if watch.mask&sysFSONESHOT != 0 {
+					watch.mask = 0
+				}
+			}
+			if raw.Action == syscall.FILE_ACTION_RENAMED_NEW_NAME {
+				fullname = filepath.Join(watch.path, watch.rename)
+				sendNameEvent()
+			}
+
+			// Move to the next event in the buffer
+			if raw.NextEntryOffset == 0 {
+				break
+			}
+			offset += raw.NextEntryOffset
+
+			// Error!
+			if offset >= n {
+				w.Errors <- errors.New("Windows system assumed buffer larger than it is, events have likely been missed.")
+				break
+			}
+		}
+
+		if err := w.startRead(watch); err != nil {
+			w.Errors <- err
+		}
+	}
+}
+
+func (w *Watcher) sendEvent(name string, mask uint64) bool {
+	if mask == 0 {
+		return false
+	}
+	event := newEvent(name, uint32(mask))
+	select {
+	case ch := <-w.quit:
+		w.quit <- ch
+	case w.Events <- event:
+	}
+	return true
+}
+
+func toWindowsFlags(mask uint64) uint32 {
+	var m uint32
+	if mask&sysFSACCESS != 0 {
+		m |= syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS
+	}
+	if mask&sysFSMODIFY != 0 {
+		m |= syscall.FILE_NOTIFY_CHANGE_LAST_WRITE
+	}
+	if mask&sysFSATTRIB != 0 {
+		m |= syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES
+	}
+	if mask&(sysFSMOVE|sysFSCREATE|sysFSDELETE) != 0 {
+		m |= syscall.FILE_NOTIFY_CHANGE_FILE_NAME | syscall.FILE_NOTIFY_CHANGE_DIR_NAME
+	}
+	return m
+}
+
+func toFSnotifyFlags(action uint32) uint64 {
+	switch action {
+	case syscall.FILE_ACTION_ADDED:
+		return sysFSCREATE
+	case syscall.FILE_ACTION_REMOVED:
+		return sysFSDELETE
+	case syscall.FILE_ACTION_MODIFIED:
+		return sysFSMODIFY
+	case syscall.FILE_ACTION_RENAMED_OLD_NAME:
+		return sysFSMOVEDFROM
+	case syscall.FILE_ACTION_RENAMED_NEW_NAME:
+		return sysFSMOVEDTO
+	}
+	return 0
+}

vendor/golang.org/x/sys/AUTHORS

@@ -0,0 +1,3 @@
+# This source code refers to The Go Authors for copyright purposes.
+# The master list of authors is in the main Go distribution,
+# visible at http://tip.golang.org/AUTHORS.

vendor/golang.org/x/sys/CONTRIBUTORS

@@ -0,0 +1,3 @@
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at http://tip.golang.org/CONTRIBUTORS.

vendor/golang.org/x/sys/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/golang.org/x/sys/PATENTS

@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.

vendor/golang.org/x/sys/unix/.gitignore

@@ -0,0 +1,2 @@
+_obj/
+unix.test

vendor/golang.org/x/sys/unix/README.md

@@ -0,0 +1,173 @@
+# Building `sys/unix`
+
+The sys/unix package provides access to the raw system call interface of the
+underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
+
+Porting Go to a new architecture/OS combination or adding syscalls, types, or
+constants to an existing architecture/OS pair requires some manual effort;
+however, there are tools that automate much of the process.
+
+## Build Systems
+
+There are currently two ways we generate the necessary files. We are currently
+migrating the build system to use containers so the builds are reproducible.
+This is being done on an OS-by-OS basis. Please update this documentation as
+components of the build system change.
+
+### Old Build System (currently for `GOOS != "linux"`)
+
+The old build system generates the Go files based on the C header files
+present on your system. This means that files
+for a given GOOS/GOARCH pair must be generated on a system with that OS and
+architecture. This also means that the generated code can differ from system
+to system, based on differences in the header files.
+
+To avoid this, if you are using the old build system, only generate the Go
+files on an installation with unmodified header files. It is also important to
+keep track of which version of the OS the files were generated from (ex.
+Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
+and have each OS upgrade correspond to a single change.
+
+To build the files for your current OS and architecture, make sure GOOS and
+GOARCH are set correctly and run `mkall.sh`. This will generate the files for
+your specific system. Running `mkall.sh -n` shows the commands that will be run.
+
+Requirements: bash, go
+
+### New Build System (currently for `GOOS == "linux"`)
+
+The new build system uses a Docker container to generate the go files directly
+from source checkouts of the kernel and various system libraries. This means
+that on any platform that supports Docker, all the files using the new build
+system can be generated at once, and generated files will not change based on
+what the person running the scripts has installed on their computer.
+
+The OS specific files for the new build system are located in the `${GOOS}`
+directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
+the kernel or system library updates, modify the Dockerfile at
+`${GOOS}/Dockerfile` to checkout the new release of the source.
+
+To build all the files under the new build system, you must be on an amd64/Linux
+system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
+then generate all of the files for all of the GOOS/GOARCH pairs in the new build
+system. Running `mkall.sh -n` shows the commands that will be run.
+
+Requirements: bash, go, docker
+
+## Component files
+
+This section describes the various files used in the code generation process.
+It also contains instructions on how to modify these files to add a new
+architecture/OS or to add additional syscalls, types, or constants. Note that
+if you are using the new build system, the scripts/programs cannot be called normally.
+They must be called from within the docker container.
+
+### asm files
+
+The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
+call dispatch. There are three entry points:
+```
+  func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+  func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+  func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+```
+The first and second are the standard ones; they differ only in how many
+arguments can be passed to the kernel. The third is for low-level use by the
+ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
+let it know that a system call is running.
+
+When porting Go to an new architecture/OS, this file must be implemented for
+each GOOS/GOARCH pair.
+
+### mksysnum
+
+Mksysnum is a Go program located at `${GOOS}/mksysnum.go` (or `mksysnum_${GOOS}.go`
+for the old system). This program takes in a list of header files containing the
+syscall number declarations and parses them to produce the corresponding list of
+Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
+constants.
+
+Adding new syscall numbers is mostly done by running the build on a sufficiently
+new installation of the target OS (or updating the source checkouts for the
+new build system). However, depending on the OS, you make need to update the
+parsing in mksysnum.
+
+### mksyscall.go
+
+The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
+hand-written Go files which implement system calls (for unix, the specific OS,
+or the specific OS/Architecture pair respectively) that need special handling
+and list `//sys` comments giving prototypes for ones that can be generated.
+
+The mksyscall.go program takes the `//sys` and `//sysnb` comments and converts
+them into syscalls. This requires the name of the prototype in the comment to
+match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
+prototype can be exported (capitalized) or not.
+
+Adding a new syscall often just requires adding a new `//sys` function prototype
+with the desired arguments and a capitalized name so it is exported. However, if
+you want the interface to the syscall to be different, often one will make an
+unexported `//sys` prototype, an then write a custom wrapper in
+`syscall_${GOOS}.go`.
+
+### types files
+
+For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
+`types_${GOOS}.go` on the old system). This file includes standard C headers and
+creates Go type aliases to the corresponding C types. The file is then fed
+through godef to get the Go compatible definitions. Finally, the generated code
+is fed though mkpost.go to format the code correctly and remove any hidden or
+private identifiers. This cleaned-up code is written to
+`ztypes_${GOOS}_${GOARCH}.go`.
+
+The hardest part about preparing this file is figuring out which headers to
+include and which symbols need to be `#define`d to get the actual data
+structures that pass through to the kernel system calls. Some C libraries
+preset alternate versions for binary compatibility and translate them on the
+way in and out of system calls, but there is almost always a `#define` that can
+get the real ones.
+See `types_darwin.go` and `linux/types.go` for examples.
+
+To add a new type, add in the necessary include statement at the top of the
+file (if it is not already there) and add in a type alias line. Note that if
+your type is significantly different on different architectures, you may need
+some `#if/#elif` macros in your include statements.
+
+### mkerrors.sh
+
+This script is used to generate the system's various constants. This doesn't
+just include the error numbers and error strings, but also the signal numbers
+an a wide variety of miscellaneous constants. The constants come from the list
+of include files in the `includes_${uname}` variable. A regex then picks out
+the desired `#define` statements, and generates the corresponding Go constants.
+The error numbers and strings are generated from `#include <errno.h>`, and the
+signal numbers and strings are generated from `#include <signal.h>`. All of
+these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
+`_errors.c`, which prints out all the constants.
+
+To add a constant, add the header that includes it to the appropriate variable.
+Then, edit the regex (if necessary) to match the desired constant. Avoid making
+the regex too broad to avoid matching unintended constants.
+
+
+## Generated files
+
+### `zerror_${GOOS}_${GOARCH}.go`
+
+A file containing all of the system's generated error numbers, error strings,
+signal numbers, and constants. Generated by `mkerrors.sh` (see above).
+
+### `zsyscall_${GOOS}_${GOARCH}.go`
+
+A file containing all the generated syscalls for a specific GOOS and GOARCH.
+Generated by `mksyscall.go` (see above).
+
+### `zsysnum_${GOOS}_${GOARCH}.go`
+
+A list of numeric constants for all the syscall number of the specific GOOS
+and GOARCH. Generated by mksysnum (see above).
+
+### `ztypes_${GOOS}_${GOARCH}.go`
+
+A file containing Go types for passing into (or returning from) syscalls.
+Generated by godefs and the types file (see above).

vendor/golang.org/x/sys/unix/affinity_linux.go

@@ -0,0 +1,86 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// CPU affinity functions
+
+package unix
+
+import (
+	"math/bits"
+	"unsafe"
+)
+
+const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
+
+// CPUSet represents a CPU affinity mask.
+type CPUSet [cpuSetSize]cpuMask
+
+func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
+	_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
+	if e != 0 {
+		return errnoErr(e)
+	}
+	return nil
+}
+
+// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedGetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
+}
+
+// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
+// If pid is 0 the calling thread is used.
+func SchedSetaffinity(pid int, set *CPUSet) error {
+	return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
+}
+
+// Zero clears the set s, so that it contains no CPUs.
+func (s *CPUSet) Zero() {
+	for i := range s {
+		s[i] = 0
+	}
+}
+
+func cpuBitsIndex(cpu int) int {
+	return cpu / _NCPUBITS
+}
+
+func cpuBitsMask(cpu int) cpuMask {
+	return cpuMask(1 << (uint(cpu) % _NCPUBITS))
+}
+
+// Set adds cpu to the set s.
+func (s *CPUSet) Set(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] |= cpuBitsMask(cpu)
+	}
+}
+
+// Clear removes cpu from the set s.
+func (s *CPUSet) Clear(cpu int) {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		s[i] &^= cpuBitsMask(cpu)
+	}
+}
+
+// IsSet reports whether cpu is in the set s.
+func (s *CPUSet) IsSet(cpu int) bool {
+	i := cpuBitsIndex(cpu)
+	if i < len(s) {
+		return s[i]&cpuBitsMask(cpu) != 0
+	}
+	return false
+}
+
+// Count returns the number of CPUs in the set s.
+func (s *CPUSet) Count() int {
+	c := 0
+	for _, b := range s {
+		c += bits.OnesCount64(uint64(b))
+	}
+	return c
+}

vendor/golang.org/x/sys/unix/aliases.go

@@ -0,0 +1,14 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build go1.9
+
+package unix
+
+import "syscall"
+
+type Signal = syscall.Signal
+type Errno = syscall.Errno
+type SysProcAttr = syscall.SysProcAttr

vendor/golang.org/x/sys/unix/asm_aix_ppc64.s

@@ -0,0 +1,17 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for ppc64, AIX are implemented in runtime/syscall_aix.go
+//
+
+TEXT ·syscall6(SB),NOSPLIT,$0-88
+	JMP	syscall·syscall6(SB)
+
+TEXT ·rawSyscall6(SB),NOSPLIT,$0-88
+	JMP	syscall·rawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm.s

@@ -0,0 +1,30 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+// +build arm,darwin
+
+#include "textflag.h"
+
+//
+// System call support for ARM, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_darwin_arm64.s

@@ -0,0 +1,30 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+// +build arm64,darwin
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, Darwin
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_dragonfly_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, DragonFly
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_freebsd_arm64.s

@@ -0,0 +1,29 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM64, FreeBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_linux_386.s

@@ -0,0 +1,65 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for 386, Linux
+//
+
+// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
+// instead of the glibc-specific "CALL 0x10(GS)".
+#define INVOKE_SYSCALL	INT	$0x80
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	CALL	runtime·entersyscall(SB)
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVL	trap+0(FP), AX  // syscall entry
+	MOVL	a1+4(FP), BX
+	MOVL	a2+8(FP), CX
+	MOVL	a3+12(FP), DX
+	MOVL	$0, SI
+	MOVL	$0, DI
+	INVOKE_SYSCALL
+	MOVL	AX, r1+16(FP)
+	MOVL	DX, r2+20(FP)
+	RET
+
+TEXT ·socketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·socketcall(SB)
+
+TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
+	JMP	syscall·rawsocketcall(SB)
+
+TEXT ·seek(SB),NOSPLIT,$0-28
+	JMP	syscall·seek(SB)

vendor/golang.org/x/sys/unix/asm_linux_amd64.s

@@ -0,0 +1,57 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for AMD64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	CALL	runtime·entersyscall(SB)
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVQ	a1+8(FP), DI
+	MOVQ	a2+16(FP), SI
+	MOVQ	a3+24(FP), DX
+	MOVQ	$0, R10
+	MOVQ	$0, R8
+	MOVQ	$0, R9
+	MOVQ	trap+0(FP), AX	// syscall entry
+	SYSCALL
+	MOVQ	AX, r1+32(FP)
+	MOVQ	DX, r2+40(FP)
+	RET
+
+TEXT ·gettimeofday(SB),NOSPLIT,$0-16
+	JMP	syscall·gettimeofday(SB)

vendor/golang.org/x/sys/unix/asm_linux_arm.s

@@ -0,0 +1,56 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for arm, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	BL	runtime·entersyscall(SB)
+	MOVW	trap+0(FP), R7
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	MOVW	$0, R3
+	MOVW	$0, R4
+	MOVW	$0, R5
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	trap+0(FP), R7	// syscall entry
+	MOVW	a1+4(FP), R0
+	MOVW	a2+8(FP), R1
+	MOVW	a3+12(FP), R2
+	SWI	$0
+	MOVW	R0, r1+16(FP)
+	MOVW	$0, R0
+	MOVW	R0, r2+20(FP)
+	RET
+
+TEXT ·seek(SB),NOSPLIT,$0-28
+	B	syscall·seek(SB)

vendor/golang.org/x/sys/unix/asm_linux_arm64.s

@@ -0,0 +1,52 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build arm64
+// +build !gccgo
+
+#include "textflag.h"
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	B	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	B	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)	// r1
+	MOVD	R1, r2+40(FP)	// r2
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	B	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	B	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R0
+	MOVD	a2+16(FP), R1
+	MOVD	a3+24(FP), R2
+	MOVD	$0, R3
+	MOVD	$0, R4
+	MOVD	$0, R5
+	MOVD	trap+0(FP), R8	// syscall entry
+	SVC
+	MOVD	R0, r1+32(FP)
+	MOVD	R1, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_mips64x.s

@@ -0,0 +1,56 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build mips64 mips64le
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for mips64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	JAL	runtime·entersyscall(SB)
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVV	a1+8(FP), R4
+	MOVV	a2+16(FP), R5
+	MOVV	a3+24(FP), R6
+	MOVV	R0, R7
+	MOVV	R0, R8
+	MOVV	R0, R9
+	MOVV	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVV	R2, r1+32(FP)
+	MOVV	R3, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_mipsx.s

@@ -0,0 +1,54 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build mips mipsle
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for mips, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-28
+	JMP syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-40
+	JMP syscall·Syscall6(SB)
+
+TEXT ·Syscall9(SB),NOSPLIT,$0-52
+	JMP syscall·Syscall9(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
+	JAL	runtime·entersyscall(SB)
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	R0, R7
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)	// r1
+	MOVW	R3, r2+20(FP)	// r2
+	JAL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
+	MOVW	a1+4(FP), R4
+	MOVW	a2+8(FP), R5
+	MOVW	a3+12(FP), R6
+	MOVW	trap+0(FP), R2	// syscall entry
+	SYSCALL
+	MOVW	R2, r1+16(FP)
+	MOVW	R3, r2+20(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s

@@ -0,0 +1,44 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux
+// +build ppc64 ppc64le
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for ppc64, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R3
+	MOVD	a2+16(FP), R4
+	MOVD	a3+24(FP), R5
+	MOVD	R0, R6
+	MOVD	R0, R7
+	MOVD	R0, R8
+	MOVD	trap+0(FP), R9	// syscall entry
+	SYSCALL R9
+	MOVD	R3, r1+32(FP)
+	MOVD	R4, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_riscv64.s

@@ -0,0 +1,54 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build riscv64,!gccgo
+
+#include "textflag.h"
+
+//
+// System calls for linux/riscv64.
+//
+// Where available, just jump to package syscall's implementation of
+// these functions.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	CALL	runtime·entersyscall(SB)
+	MOV	a1+8(FP), A0
+	MOV	a2+16(FP), A1
+	MOV	a3+24(FP), A2
+	MOV	$0, A3
+	MOV	$0, A4
+	MOV	$0, A5
+	MOV	$0, A6
+	MOV	trap+0(FP), A7	// syscall entry
+	ECALL
+	MOV	A0, r1+32(FP)	// r1
+	MOV	A1, r2+40(FP)	// r2
+	CALL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOV	a1+8(FP), A0
+	MOV	a2+16(FP), A1
+	MOV	a3+24(FP), A2
+	MOV	ZERO, A3
+	MOV	ZERO, A4
+	MOV	ZERO, A5
+	MOV	trap+0(FP), A7	// syscall entry
+	ECALL
+	MOV	A0, r1+32(FP)
+	MOV	A1, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_linux_s390x.s

@@ -0,0 +1,56 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build s390x
+// +build linux
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for s390x, Linux
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT ·Syscall(SB),NOSPLIT,$0-56
+	BR	syscall·Syscall(SB)
+
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+	BR	syscall·Syscall6(SB)
+
+TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
+	BL	runtime·entersyscall(SB)
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	BL	runtime·exitsyscall(SB)
+	RET
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-56
+	BR	syscall·RawSyscall(SB)
+
+TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
+	BR	syscall·RawSyscall6(SB)
+
+TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
+	MOVD	a1+8(FP), R2
+	MOVD	a2+16(FP), R3
+	MOVD	a3+24(FP), R4
+	MOVD	$0, R5
+	MOVD	$0, R6
+	MOVD	$0, R7
+	MOVD	trap+0(FP), R1	// syscall entry
+	SYSCALL
+	MOVD	R2, r1+32(FP)
+	MOVD	R3, r2+40(FP)
+	RET

vendor/golang.org/x/sys/unix/asm_netbsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_netbsd_arm64.s

@@ -0,0 +1,29 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM64, NetBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_386.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for 386, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	JMP	syscall·Syscall9(SB)
+
+TEXT ·RawSyscall(SB),NOSPLIT,$0-28
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_amd64.s

@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for AMD64, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_arm.s

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for ARM, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-28
+	B	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-40
+	B	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-52
+	B	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-28
+	B	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-40
+	B	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_openbsd_arm64.s

@@ -0,0 +1,29 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System call support for arm64, OpenBSD
+//
+
+// Just jump to package syscall's implementation for all these functions.
+// The runtime may know about them.
+
+TEXT	·Syscall(SB),NOSPLIT,$0-56
+	JMP	syscall·Syscall(SB)
+
+TEXT	·Syscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·Syscall6(SB)
+
+TEXT	·Syscall9(SB),NOSPLIT,$0-104
+	JMP	syscall·Syscall9(SB)
+
+TEXT	·RawSyscall(SB),NOSPLIT,$0-56
+	JMP	syscall·RawSyscall(SB)
+
+TEXT	·RawSyscall6(SB),NOSPLIT,$0-80
+	JMP	syscall·RawSyscall6(SB)

vendor/golang.org/x/sys/unix/asm_solaris_amd64.s

@@ -0,0 +1,17 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !gccgo
+
+#include "textflag.h"
+
+//
+// System calls for amd64, Solaris are implemented in runtime/syscall_solaris.go
+//
+
+TEXT ·sysvicall6(SB),NOSPLIT,$0-88
+	JMP	syscall·sysvicall6(SB)
+
+TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
+	JMP	syscall·rawSysvicall6(SB)

vendor/golang.org/x/sys/unix/bluetooth_linux.go

@@ -0,0 +1,35 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Bluetooth sockets and messages
+
+package unix
+
+// Bluetooth Protocols
+const (
+	BTPROTO_L2CAP  = 0
+	BTPROTO_HCI    = 1
+	BTPROTO_SCO    = 2
+	BTPROTO_RFCOMM = 3
+	BTPROTO_BNEP   = 4
+	BTPROTO_CMTP   = 5
+	BTPROTO_HIDP   = 6
+	BTPROTO_AVDTP  = 7
+)
+
+const (
+	HCI_CHANNEL_RAW     = 0
+	HCI_CHANNEL_USER    = 1
+	HCI_CHANNEL_MONITOR = 2
+	HCI_CHANNEL_CONTROL = 3
+)
+
+// Socketoption Level
+const (
+	SOL_BLUETOOTH = 0x112
+	SOL_HCI       = 0x0
+	SOL_L2CAP     = 0x6
+	SOL_RFCOMM    = 0x12
+	SOL_SCO       = 0x11
+)

vendor/golang.org/x/sys/unix/cap_freebsd.go

@@ -0,0 +1,195 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build freebsd
+
+package unix
+
+import (
+	"errors"
+	"fmt"
+)
+
+// Go implementation of C mostly found in /usr/src/sys/kern/subr_capability.c
+
+const (
+	// This is the version of CapRights this package understands. See C implementation for parallels.
+	capRightsGoVersion = CAP_RIGHTS_VERSION_00
+	capArSizeMin       = CAP_RIGHTS_VERSION_00 + 2
+	capArSizeMax       = capRightsGoVersion + 2
+)
+
+var (
+	bit2idx = []int{
+		-1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1,
+		4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+	}
+)
+
+func capidxbit(right uint64) int {
+	return int((right >> 57) & 0x1f)
+}
+
+func rightToIndex(right uint64) (int, error) {
+	idx := capidxbit(right)
+	if idx < 0 || idx >= len(bit2idx) {
+		return -2, fmt.Errorf("index for right 0x%x out of range", right)
+	}
+	return bit2idx[idx], nil
+}
+
+func caprver(right uint64) int {
+	return int(right >> 62)
+}
+
+func capver(rights *CapRights) int {
+	return caprver(rights.Rights[0])
+}
+
+func caparsize(rights *CapRights) int {
+	return capver(rights) + 2
+}
+
+// CapRightsSet sets the permissions in setrights in rights.
+func CapRightsSet(rights *CapRights, setrights []uint64) error {
+	// This is essentially a copy of cap_rights_vset()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return errors.New("bad rights size")
+	}
+
+	for _, right := range setrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return err
+		}
+		if i >= n {
+			return errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch")
+		}
+		rights.Rights[i] |= right
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch (after assign)")
+		}
+	}
+
+	return nil
+}
+
+// CapRightsClear clears the permissions in clearrights from rights.
+func CapRightsClear(rights *CapRights, clearrights []uint64) error {
+	// This is essentially a copy of cap_rights_vclear()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return errors.New("bad rights size")
+	}
+
+	for _, right := range clearrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return err
+		}
+		if i >= n {
+			return errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch")
+		}
+		rights.Rights[i] &= ^(right & 0x01FFFFFFFFFFFFFF)
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return errors.New("index mismatch (after assign)")
+		}
+	}
+
+	return nil
+}
+
+// CapRightsIsSet checks whether all the permissions in setrights are present in rights.
+func CapRightsIsSet(rights *CapRights, setrights []uint64) (bool, error) {
+	// This is essentially a copy of cap_rights_is_vset()
+	if capver(rights) != CAP_RIGHTS_VERSION_00 {
+		return false, fmt.Errorf("bad rights version %d", capver(rights))
+	}
+
+	n := caparsize(rights)
+	if n < capArSizeMin || n > capArSizeMax {
+		return false, errors.New("bad rights size")
+	}
+
+	for _, right := range setrights {
+		if caprver(right) != CAP_RIGHTS_VERSION_00 {
+			return false, errors.New("bad right version")
+		}
+		i, err := rightToIndex(right)
+		if err != nil {
+			return false, err
+		}
+		if i >= n {
+			return false, errors.New("index overflow")
+		}
+		if capidxbit(rights.Rights[i]) != capidxbit(right) {
+			return false, errors.New("index mismatch")
+		}
+		if (rights.Rights[i] & right) != right {
+			return false, nil
+		}
+	}
+
+	return true, nil
+}
+
+func capright(idx uint64, bit uint64) uint64 {
+	return ((1 << (57 + idx)) | bit)
+}
+
+// CapRightsInit returns a pointer to an initialised CapRights structure filled with rights.
+// See man cap_rights_init(3) and rights(4).
+func CapRightsInit(rights []uint64) (*CapRights, error) {
+	var r CapRights
+	r.Rights[0] = (capRightsGoVersion << 62) | capright(0, 0)
+	r.Rights[1] = capright(1, 0)
+
+	err := CapRightsSet(&r, rights)
+	if err != nil {
+		return nil, err
+	}
+	return &r, nil
+}
+
+// CapRightsLimit reduces the operations permitted on fd to at most those contained in rights.
+// The capability rights on fd can never be increased by CapRightsLimit.
+// See man cap_rights_limit(2) and rights(4).
+func CapRightsLimit(fd uintptr, rights *CapRights) error {
+	return capRightsLimit(int(fd), rights)
+}
+
+// CapRightsGet returns a CapRights structure containing the operations permitted on fd.
+// See man cap_rights_get(3) and rights(4).
+func CapRightsGet(fd uintptr) (*CapRights, error) {
+	r, err := CapRightsInit(nil)
+	if err != nil {
+		return nil, err
+	}
+	err = capRightsGet(capRightsGoVersion, int(fd), r)
+	if err != nil {
+		return nil, err
+	}
+	return r, nil
+}

vendor/golang.org/x/sys/unix/constants.go

@@ -0,0 +1,13 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+const (
+	R_OK = 0x4
+	W_OK = 0x2
+	X_OK = 0x1
+)

vendor/golang.org/x/sys/unix/dev_aix_ppc.go

@@ -0,0 +1,27 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by AIX.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 16) & 0xffff)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	return uint64(((major) << 16) | (minor))
+}

vendor/golang.org/x/sys/unix/dev_aix_ppc64.go

@@ -0,0 +1,29 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc64
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used AIX.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x3fffffff00000000) >> 32)
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	return uint32((dev & 0x00000000ffffffff) >> 0)
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	var DEVNO64 uint64
+	DEVNO64 = 0x8000000000000000
+	return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
+}

vendor/golang.org/x/sys/unix/dev_darwin.go

@@ -0,0 +1,24 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in Darwin's sys/types.h header.
+
+package unix
+
+// Major returns the major component of a Darwin device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 24) & 0xff)
+}
+
+// Minor returns the minor component of a Darwin device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffffff)
+}
+
+// Mkdev returns a Darwin device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 24) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_dragonfly.go

@@ -0,0 +1,30 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in Dragonfly's sys/types.h header.
+//
+// The information below is extracted and adapted from sys/types.h:
+//
+// Minor gives a cookie instead of an index since in order to avoid changing the
+// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
+// devices that don't use them.
+
+package unix
+
+// Major returns the major component of a DragonFlyBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 8) & 0xff)
+}
+
+// Minor returns the minor component of a DragonFlyBSD device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff00ff)
+}
+
+// Mkdev returns a DragonFlyBSD device number generated from the given major and
+// minor components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 8) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_freebsd.go

@@ -0,0 +1,30 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in FreeBSD's sys/types.h header.
+//
+// The information below is extracted and adapted from sys/types.h:
+//
+// Minor gives a cookie instead of an index since in order to avoid changing the
+// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
+// devices that don't use them.
+
+package unix
+
+// Major returns the major component of a FreeBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev >> 8) & 0xff)
+}
+
+// Minor returns the minor component of a FreeBSD device number.
+func Minor(dev uint64) uint32 {
+	return uint32(dev & 0xffff00ff)
+}
+
+// Mkdev returns a FreeBSD device number generated from the given major and
+// minor components.
+func Mkdev(major, minor uint32) uint64 {
+	return (uint64(major) << 8) | uint64(minor)
+}

vendor/golang.org/x/sys/unix/dev_linux.go

@@ -0,0 +1,42 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used by the Linux kernel and glibc.
+//
+// The information below is extracted and adapted from bits/sysmacros.h in the
+// glibc sources:
+//
+// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's
+// default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of the major
+// number and m is a hex digit of the minor number. This is backward compatible
+// with legacy systems where dev_t is 16 bits wide, encoded as MMmm. It is also
+// backward compatible with the Linux kernel, which for some architectures uses
+// 32-bit dev_t, encoded as mmmM MMmm.
+
+package unix
+
+// Major returns the major component of a Linux device number.
+func Major(dev uint64) uint32 {
+	major := uint32((dev & 0x00000000000fff00) >> 8)
+	major |= uint32((dev & 0xfffff00000000000) >> 32)
+	return major
+}
+
+// Minor returns the minor component of a Linux device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x00000000000000ff) >> 0)
+	minor |= uint32((dev & 0x00000ffffff00000) >> 12)
+	return minor
+}
+
+// Mkdev returns a Linux device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) & 0x00000fff) << 8
+	dev |= (uint64(major) & 0xfffff000) << 32
+	dev |= (uint64(minor) & 0x000000ff) << 0
+	dev |= (uint64(minor) & 0xffffff00) << 12
+	return dev
+}

vendor/golang.org/x/sys/unix/dev_netbsd.go

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in NetBSD's sys/types.h header.
+
+package unix
+
+// Major returns the major component of a NetBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x000fff00) >> 8)
+}
+
+// Minor returns the minor component of a NetBSD device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x000000ff) >> 0)
+	minor |= uint32((dev & 0xfff00000) >> 12)
+	return minor
+}
+
+// Mkdev returns a NetBSD device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) << 8) & 0x000fff00
+	dev |= (uint64(minor) << 12) & 0xfff00000
+	dev |= (uint64(minor) << 0) & 0x000000ff
+	return dev
+}

vendor/golang.org/x/sys/unix/dev_openbsd.go

@@ -0,0 +1,29 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Functions to access/create device major and minor numbers matching the
+// encoding used in OpenBSD's sys/types.h header.
+
+package unix
+
+// Major returns the major component of an OpenBSD device number.
+func Major(dev uint64) uint32 {
+	return uint32((dev & 0x0000ff00) >> 8)
+}
+
+// Minor returns the minor component of an OpenBSD device number.
+func Minor(dev uint64) uint32 {
+	minor := uint32((dev & 0x000000ff) >> 0)
+	minor |= uint32((dev & 0xffff0000) >> 8)
+	return minor
+}
+
+// Mkdev returns an OpenBSD device number generated from the given major and minor
+// components.
+func Mkdev(major, minor uint32) uint64 {
+	dev := (uint64(major) << 8) & 0x0000ff00
+	dev |= (uint64(minor) << 8) & 0xffff0000
+	dev |= (uint64(minor) << 0) & 0x000000ff
+	return dev
+}

vendor/golang.org/x/sys/unix/dirent.go

@@ -0,0 +1,102 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+import "unsafe"
+
+// readInt returns the size-bytes unsigned integer in native byte order at offset off.
+func readInt(b []byte, off, size uintptr) (u uint64, ok bool) {
+	if len(b) < int(off+size) {
+		return 0, false
+	}
+	if isBigEndian {
+		return readIntBE(b[off:], size), true
+	}
+	return readIntLE(b[off:], size), true
+}
+
+func readIntBE(b []byte, size uintptr) uint64 {
+	switch size {
+	case 1:
+		return uint64(b[0])
+	case 2:
+		_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[1]) | uint64(b[0])<<8
+	case 4:
+		_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24
+	case 8:
+		_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
+			uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
+	default:
+		panic("syscall: readInt with unsupported size")
+	}
+}
+
+func readIntLE(b []byte, size uintptr) uint64 {
+	switch size {
+	case 1:
+		return uint64(b[0])
+	case 2:
+		_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[0]) | uint64(b[1])<<8
+	case 4:
+		_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24
+	case 8:
+		_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
+		return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
+			uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
+	default:
+		panic("syscall: readInt with unsupported size")
+	}
+}
+
+// ParseDirent parses up to max directory entries in buf,
+// appending the names to names. It returns the number of
+// bytes consumed from buf, the number of entries added
+// to names, and the new names slice.
+func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
+	origlen := len(buf)
+	count = 0
+	for max != 0 && len(buf) > 0 {
+		reclen, ok := direntReclen(buf)
+		if !ok || reclen > uint64(len(buf)) {
+			return origlen, count, names
+		}
+		rec := buf[:reclen]
+		buf = buf[reclen:]
+		ino, ok := direntIno(rec)
+		if !ok {
+			break
+		}
+		if ino == 0 { // File absent in directory.
+			continue
+		}
+		const namoff = uint64(unsafe.Offsetof(Dirent{}.Name))
+		namlen, ok := direntNamlen(rec)
+		if !ok || namoff+namlen > uint64(len(rec)) {
+			break
+		}
+		name := rec[namoff : namoff+namlen]
+		for i, c := range name {
+			if c == 0 {
+				name = name[:i]
+				break
+			}
+		}
+		// Check for useless names before allocating a string.
+		if string(name) == "." || string(name) == ".." {
+			continue
+		}
+		max--
+		count++
+		names = append(names, string(name))
+	}
+	return origlen - len(buf), count, names
+}

vendor/golang.org/x/sys/unix/endian_big.go

@@ -0,0 +1,9 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+// +build ppc64 s390x mips mips64
+
+package unix
+
+const isBigEndian = true

vendor/golang.org/x/sys/unix/endian_little.go

@@ -0,0 +1,9 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+// +build 386 amd64 amd64p32 arm arm64 ppc64le mipsle mips64le riscv64
+
+package unix
+
+const isBigEndian = false

vendor/golang.org/x/sys/unix/env_unix.go

@@ -0,0 +1,31 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Unix environment variables.
+
+package unix
+
+import "syscall"
+
+func Getenv(key string) (value string, found bool) {
+	return syscall.Getenv(key)
+}
+
+func Setenv(key, value string) error {
+	return syscall.Setenv(key, value)
+}
+
+func Clearenv() {
+	syscall.Clearenv()
+}
+
+func Environ() []string {
+	return syscall.Environ()
+}
+
+func Unsetenv(key string) error {
+	return syscall.Unsetenv(key)
+}

vendor/golang.org/x/sys/unix/errors_freebsd_386.go

@@ -0,0 +1,227 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Constants that were deprecated or moved to enums in the FreeBSD headers. Keep
+// them here for backwards compatibility.
+
+package unix
+
+const (
+	IFF_SMART                         = 0x20
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAITH                         = 0xf2
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_IPXIP                         = 0xf9
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+	IPPROTO_MAXID                     = 0x34
+	IPV6_FAITH                        = 0x1d
+	IP_FAITH                          = 0x16
+	MAP_NORESERVE                     = 0x40
+	MAP_RENAME                        = 0x20
+	NET_RT_MAXID                      = 0x6
+	RTF_PRCLONING                     = 0x10000
+	RTM_OLDADD                        = 0x9
+	RTM_OLDDEL                        = 0xa
+	SIOCADDRT                         = 0x8030720a
+	SIOCALIFADDR                      = 0x8118691b
+	SIOCDELRT                         = 0x8030720b
+	SIOCDLIFADDR                      = 0x8118691d
+	SIOCGLIFADDR                      = 0xc118691c
+	SIOCGLIFPHYADDR                   = 0xc118694b
+	SIOCSLIFPHYADDR                   = 0x8118694a
+)

vendor/golang.org/x/sys/unix/errors_freebsd_amd64.go

@@ -0,0 +1,227 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Constants that were deprecated or moved to enums in the FreeBSD headers. Keep
+// them here for backwards compatibility.
+
+package unix
+
+const (
+	IFF_SMART                         = 0x20
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAITH                         = 0xf2
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_IPXIP                         = 0xf9
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+	IPPROTO_MAXID                     = 0x34
+	IPV6_FAITH                        = 0x1d
+	IP_FAITH                          = 0x16
+	MAP_NORESERVE                     = 0x40
+	MAP_RENAME                        = 0x20
+	NET_RT_MAXID                      = 0x6
+	RTF_PRCLONING                     = 0x10000
+	RTM_OLDADD                        = 0x9
+	RTM_OLDDEL                        = 0xa
+	SIOCADDRT                         = 0x8040720a
+	SIOCALIFADDR                      = 0x8118691b
+	SIOCDELRT                         = 0x8040720b
+	SIOCDLIFADDR                      = 0x8118691d
+	SIOCGLIFADDR                      = 0xc118691c
+	SIOCGLIFPHYADDR                   = 0xc118694b
+	SIOCSLIFPHYADDR                   = 0x8118694a
+)

vendor/golang.org/x/sys/unix/errors_freebsd_arm.go

@@ -0,0 +1,226 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+const (
+	IFT_1822                          = 0x2
+	IFT_A12MPPSWITCH                  = 0x82
+	IFT_AAL2                          = 0xbb
+	IFT_AAL5                          = 0x31
+	IFT_ADSL                          = 0x5e
+	IFT_AFLANE8023                    = 0x3b
+	IFT_AFLANE8025                    = 0x3c
+	IFT_ARAP                          = 0x58
+	IFT_ARCNET                        = 0x23
+	IFT_ARCNETPLUS                    = 0x24
+	IFT_ASYNC                         = 0x54
+	IFT_ATM                           = 0x25
+	IFT_ATMDXI                        = 0x69
+	IFT_ATMFUNI                       = 0x6a
+	IFT_ATMIMA                        = 0x6b
+	IFT_ATMLOGICAL                    = 0x50
+	IFT_ATMRADIO                      = 0xbd
+	IFT_ATMSUBINTERFACE               = 0x86
+	IFT_ATMVCIENDPT                   = 0xc2
+	IFT_ATMVIRTUAL                    = 0x95
+	IFT_BGPPOLICYACCOUNTING           = 0xa2
+	IFT_BSC                           = 0x53
+	IFT_CCTEMUL                       = 0x3d
+	IFT_CEPT                          = 0x13
+	IFT_CES                           = 0x85
+	IFT_CHANNEL                       = 0x46
+	IFT_CNR                           = 0x55
+	IFT_COFFEE                        = 0x84
+	IFT_COMPOSITELINK                 = 0x9b
+	IFT_DCN                           = 0x8d
+	IFT_DIGITALPOWERLINE              = 0x8a
+	IFT_DIGITALWRAPPEROVERHEADCHANNEL = 0xba
+	IFT_DLSW                          = 0x4a
+	IFT_DOCSCABLEDOWNSTREAM           = 0x80
+	IFT_DOCSCABLEMACLAYER             = 0x7f
+	IFT_DOCSCABLEUPSTREAM             = 0x81
+	IFT_DS0                           = 0x51
+	IFT_DS0BUNDLE                     = 0x52
+	IFT_DS1FDL                        = 0xaa
+	IFT_DS3                           = 0x1e
+	IFT_DTM                           = 0x8c
+	IFT_DVBASILN                      = 0xac
+	IFT_DVBASIOUT                     = 0xad
+	IFT_DVBRCCDOWNSTREAM              = 0x93
+	IFT_DVBRCCMACLAYER                = 0x92
+	IFT_DVBRCCUPSTREAM                = 0x94
+	IFT_ENC                           = 0xf4
+	IFT_EON                           = 0x19
+	IFT_EPLRS                         = 0x57
+	IFT_ESCON                         = 0x49
+	IFT_ETHER                         = 0x6
+	IFT_FAST                          = 0x7d
+	IFT_FASTETHER                     = 0x3e
+	IFT_FASTETHERFX                   = 0x45
+	IFT_FDDI                          = 0xf
+	IFT_FIBRECHANNEL                  = 0x38
+	IFT_FRAMERELAYINTERCONNECT        = 0x3a
+	IFT_FRAMERELAYMPI                 = 0x5c
+	IFT_FRDLCIENDPT                   = 0xc1
+	IFT_FRELAY                        = 0x20
+	IFT_FRELAYDCE                     = 0x2c
+	IFT_FRF16MFRBUNDLE                = 0xa3
+	IFT_FRFORWARD                     = 0x9e
+	IFT_G703AT2MB                     = 0x43
+	IFT_G703AT64K                     = 0x42
+	IFT_GIF                           = 0xf0
+	IFT_GIGABITETHERNET               = 0x75
+	IFT_GR303IDT                      = 0xb2
+	IFT_GR303RDT                      = 0xb1
+	IFT_H323GATEKEEPER                = 0xa4
+	IFT_H323PROXY                     = 0xa5
+	IFT_HDH1822                       = 0x3
+	IFT_HDLC                          = 0x76
+	IFT_HDSL2                         = 0xa8
+	IFT_HIPERLAN2                     = 0xb7
+	IFT_HIPPI                         = 0x2f
+	IFT_HIPPIINTERFACE                = 0x39
+	IFT_HOSTPAD                       = 0x5a
+	IFT_HSSI                          = 0x2e
+	IFT_HY                            = 0xe
+	IFT_IBM370PARCHAN                 = 0x48
+	IFT_IDSL                          = 0x9a
+	IFT_IEEE80211                     = 0x47
+	IFT_IEEE80212                     = 0x37
+	IFT_IEEE8023ADLAG                 = 0xa1
+	IFT_IFGSN                         = 0x91
+	IFT_IMT                           = 0xbe
+	IFT_INTERLEAVE                    = 0x7c
+	IFT_IP                            = 0x7e
+	IFT_IPFORWARD                     = 0x8e
+	IFT_IPOVERATM                     = 0x72
+	IFT_IPOVERCDLC                    = 0x6d
+	IFT_IPOVERCLAW                    = 0x6e
+	IFT_IPSWITCH                      = 0x4e
+	IFT_ISDN                          = 0x3f
+	IFT_ISDNBASIC                     = 0x14
+	IFT_ISDNPRIMARY                   = 0x15
+	IFT_ISDNS                         = 0x4b
+	IFT_ISDNU                         = 0x4c
+	IFT_ISO88022LLC                   = 0x29
+	IFT_ISO88023                      = 0x7
+	IFT_ISO88024                      = 0x8
+	IFT_ISO88025                      = 0x9
+	IFT_ISO88025CRFPINT               = 0x62
+	IFT_ISO88025DTR                   = 0x56
+	IFT_ISO88025FIBER                 = 0x73
+	IFT_ISO88026                      = 0xa
+	IFT_ISUP                          = 0xb3
+	IFT_L3IPXVLAN                     = 0x89
+	IFT_LAPB                          = 0x10
+	IFT_LAPD                          = 0x4d
+	IFT_LAPF                          = 0x77
+	IFT_LOCALTALK                     = 0x2a
+	IFT_LOOP                          = 0x18
+	IFT_MEDIAMAILOVERIP               = 0x8b
+	IFT_MFSIGLINK                     = 0xa7
+	IFT_MIOX25                        = 0x26
+	IFT_MODEM                         = 0x30
+	IFT_MPC                           = 0x71
+	IFT_MPLS                          = 0xa6
+	IFT_MPLSTUNNEL                    = 0x96
+	IFT_MSDSL                         = 0x8f
+	IFT_MVL                           = 0xbf
+	IFT_MYRINET                       = 0x63
+	IFT_NFAS                          = 0xaf
+	IFT_NSIP                          = 0x1b
+	IFT_OPTICALCHANNEL                = 0xc3
+	IFT_OPTICALTRANSPORT              = 0xc4
+	IFT_OTHER                         = 0x1
+	IFT_P10                           = 0xc
+	IFT_P80                           = 0xd
+	IFT_PARA                          = 0x22
+	IFT_PFLOG                         = 0xf6
+	IFT_PFSYNC                        = 0xf7
+	IFT_PLC                           = 0xae
+	IFT_POS                           = 0xab
+	IFT_PPPMULTILINKBUNDLE            = 0x6c
+	IFT_PROPBWAP2MP                   = 0xb8
+	IFT_PROPCNLS                      = 0x59
+	IFT_PROPDOCSWIRELESSDOWNSTREAM    = 0xb5
+	IFT_PROPDOCSWIRELESSMACLAYER      = 0xb4
+	IFT_PROPDOCSWIRELESSUPSTREAM      = 0xb6
+	IFT_PROPMUX                       = 0x36
+	IFT_PROPWIRELESSP2P               = 0x9d
+	IFT_PTPSERIAL                     = 0x16
+	IFT_PVC                           = 0xf1
+	IFT_QLLC                          = 0x44
+	IFT_RADIOMAC                      = 0xbc
+	IFT_RADSL                         = 0x5f
+	IFT_REACHDSL                      = 0xc0
+	IFT_RFC1483                       = 0x9f
+	IFT_RS232                         = 0x21
+	IFT_RSRB                          = 0x4f
+	IFT_SDLC                          = 0x11
+	IFT_SDSL                          = 0x60
+	IFT_SHDSL                         = 0xa9
+	IFT_SIP                           = 0x1f
+	IFT_SLIP                          = 0x1c
+	IFT_SMDSDXI                       = 0x2b
+	IFT_SMDSICIP                      = 0x34
+	IFT_SONET                         = 0x27
+	IFT_SONETOVERHEADCHANNEL          = 0xb9
+	IFT_SONETPATH                     = 0x32
+	IFT_SONETVT                       = 0x33
+	IFT_SRP                           = 0x97
+	IFT_SS7SIGLINK                    = 0x9c
+	IFT_STACKTOSTACK                  = 0x6f
+	IFT_STARLAN                       = 0xb
+	IFT_STF                           = 0xd7
+	IFT_T1                            = 0x12
+	IFT_TDLC                          = 0x74
+	IFT_TERMPAD                       = 0x5b
+	IFT_TR008                         = 0xb0
+	IFT_TRANSPHDLC                    = 0x7b
+	IFT_TUNNEL                        = 0x83
+	IFT_ULTRA                         = 0x1d
+	IFT_USB                           = 0xa0
+	IFT_V11                           = 0x40
+	IFT_V35                           = 0x2d
+	IFT_V36                           = 0x41
+	IFT_V37                           = 0x78
+	IFT_VDSL                          = 0x61
+	IFT_VIRTUALIPADDRESS              = 0x70
+	IFT_VOICEEM                       = 0x64
+	IFT_VOICEENCAP                    = 0x67
+	IFT_VOICEFXO                      = 0x65
+	IFT_VOICEFXS                      = 0x66
+	IFT_VOICEOVERATM                  = 0x98
+	IFT_VOICEOVERFRAMERELAY           = 0x99
+	IFT_VOICEOVERIP                   = 0x68
+	IFT_X213                          = 0x5d
+	IFT_X25                           = 0x5
+	IFT_X25DDN                        = 0x4
+	IFT_X25HUNTGROUP                  = 0x7a
+	IFT_X25MLP                        = 0x79
+	IFT_X25PLE                        = 0x28
+	IFT_XETHER                        = 0x1a
+
+	// missing constants on FreeBSD-11.1-RELEASE, copied from old values in ztypes_freebsd_arm.go
+	IFF_SMART       = 0x20
+	IFT_FAITH       = 0xf2
+	IFT_IPXIP       = 0xf9
+	IPPROTO_MAXID   = 0x34
+	IPV6_FAITH      = 0x1d
+	IP_FAITH        = 0x16
+	MAP_NORESERVE   = 0x40
+	MAP_RENAME      = 0x20
+	NET_RT_MAXID    = 0x6
+	RTF_PRCLONING   = 0x10000
+	RTM_OLDADD      = 0x9
+	RTM_OLDDEL      = 0xa
+	SIOCADDRT       = 0x8030720a
+	SIOCALIFADDR    = 0x8118691b
+	SIOCDELRT       = 0x8030720b
+	SIOCDLIFADDR    = 0x8118691d
+	SIOCGLIFADDR    = 0xc118691c
+	SIOCGLIFPHYADDR = 0xc118694b
+	SIOCSLIFPHYADDR = 0x8118694a
+)

vendor/golang.org/x/sys/unix/fcntl.go

@@ -0,0 +1,32 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build dragonfly freebsd linux netbsd openbsd
+
+package unix
+
+import "unsafe"
+
+// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
+// systems by flock_linux_32bit.go to be SYS_FCNTL64.
+var fcntl64Syscall uintptr = SYS_FCNTL
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
+	var err error
+	if errno != 0 {
+		err = errno
+	}
+	return int(valptr), err
+}
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
+	_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
+	if errno == 0 {
+		return nil
+	}
+	return errno
+}

vendor/golang.org/x/sys/unix/fcntl_darwin.go

@@ -0,0 +1,18 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+import "unsafe"
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	return fcntl(int(fd), cmd, arg)
+}
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
+	_, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(lk))))
+	return err
+}

vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go

@@ -0,0 +1,13 @@
+// +build linux,386 linux,arm linux,mips linux,mipsle
+
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+func init() {
+	// On 32-bit Linux systems, the fcntl syscall that matches Go's
+	// Flock_t type is SYS_FCNTL64, not SYS_FCNTL.
+	fcntl64Syscall = SYS_FCNTL64
+}

vendor/golang.org/x/sys/unix/gccgo.go

@@ -0,0 +1,62 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo
+// +build !aix
+
+package unix
+
+import "syscall"
+
+// We can't use the gc-syntax .s files for gccgo. On the plus side
+// much of the functionality can be written directly in Go.
+
+//extern gccgoRealSyscallNoError
+func realSyscallNoError(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r uintptr)
+
+//extern gccgoRealSyscall
+func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)
+
+func SyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	syscall.Entersyscall()
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0
+}
+
+func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	syscall.Entersyscall()
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9)
+	syscall.Exitsyscall()
+	return r, 0, syscall.Errno(errno)
+}
+
+func RawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
+	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	return r, 0
+}
+
+func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
+	return r, 0, syscall.Errno(errno)
+}
+
+func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
+	r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
+	return r, 0, syscall.Errno(errno)
+}

vendor/golang.org/x/sys/unix/gccgo_c.c

@@ -0,0 +1,39 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo
+// +build !aix
+
+#include <errno.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#define _STRINGIFY2_(x) #x
+#define _STRINGIFY_(x) _STRINGIFY2_(x)
+#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
+
+// Call syscall from C code because the gccgo support for calling from
+// Go to C does not support varargs functions.
+
+struct ret {
+	uintptr_t r;
+	uintptr_t err;
+};
+
+struct ret
+gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+{
+	struct ret r;
+
+	errno = 0;
+	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+	r.err = errno;
+	return r;
+}
+
+uintptr_t
+gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
+{
+	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+}

vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go

@@ -0,0 +1,20 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build gccgo,linux,amd64
+
+package unix
+
+import "syscall"
+
+//extern gettimeofday
+func realGettimeofday(*Timeval, *byte) int32
+
+func gettimeofday(tv *Timeval) (err syscall.Errno) {
+	r := realGettimeofday(tv, nil)
+	if r < 0 {
+		return syscall.GetErrno()
+	}
+	return 0
+}

vendor/golang.org/x/sys/unix/ioctl.go

@@ -0,0 +1,65 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+// ioctl itself should not be exposed directly, but additional get/set
+// functions for specific types are permissible.
+
+// IoctlSetInt performs an ioctl operation which sets an integer value
+// on fd, using the specified request number.
+func IoctlSetInt(fd int, req uint, value int) error {
+	return ioctl(fd, req, uintptr(value))
+}
+
+// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
+//
+// To change fd's window size, the req argument should be TIOCSWINSZ.
+func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
+	// TODO: if we get the chance, remove the req parameter and
+	// hardcode TIOCSWINSZ.
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+	runtime.KeepAlive(value)
+	return err
+}
+
+// IoctlSetTermios performs an ioctl on fd with a *Termios.
+//
+// The req value will usually be TCSETA or TIOCSETA.
+func IoctlSetTermios(fd int, req uint, value *Termios) error {
+	// TODO: if we get the chance, remove the req parameter.
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
+	runtime.KeepAlive(value)
+	return err
+}
+
+// IoctlGetInt performs an ioctl operation which gets an integer value
+// from fd, using the specified request number.
+//
+// A few ioctl requests use the return value as an output parameter;
+// for those, IoctlRetInt should be used instead of this function.
+func IoctlGetInt(fd int, req uint) (int, error) {
+	var value int
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return value, err
+}
+
+func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
+	var value Winsize
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
+func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+	var value Termios
+	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}

vendor/golang.org/x/sys/unix/mkall.sh

@@ -0,0 +1,229 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This script runs or (given -n) prints suggested commands to generate files for
+# the Architecture/OS specified by the GOARCH and GOOS environment variables.
+# See README.md for more information about how the build system works.
+
+GOOSARCH="${GOOS}_${GOARCH}"
+
+# defaults
+mksyscall="go run mksyscall.go"
+mkerrors="./mkerrors.sh"
+zerrors="zerrors_$GOOSARCH.go"
+mksysctl=""
+zsysctl="zsysctl_$GOOSARCH.go"
+mksysnum=
+mktypes=
+mkasm=
+run="sh"
+cmd=""
+
+case "$1" in
+-syscalls)
+	for i in zsyscall*go
+	do
+		# Run the command line that appears in the first line
+		# of the generated file to regenerate it.
+		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
+		rm _$i
+	done
+	exit 0
+	;;
+-n)
+	run="cat"
+	cmd="echo"
+	shift
+esac
+
+case "$#" in
+0)
+	;;
+*)
+	echo 'usage: mkall.sh [-n]' 1>&2
+	exit 2
+esac
+
+if [[ "$GOOS" = "linux" ]]; then
+	# Use the Docker-based build system
+	# Files generated through docker (use $cmd so you can Ctl-C the build or run)
+	$cmd docker build --tag generate:$GOOS $GOOS
+	$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
+	exit
+fi
+
+GOOSARCH_in=syscall_$GOOSARCH.go
+case "$GOOSARCH" in
+_* | *_ | _)
+	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+aix_ppc)
+	mkerrors="$mkerrors -maix32"
+	mksyscall="go run mksyscall_aix_ppc.go -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+aix_ppc64)
+	mkerrors="$mkerrors -maix64"
+	mksyscall="go run mksyscall_aix_ppc64.go -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_arm64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+dragonfly_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -dragonfly"
+	mksysnum="go run mksysnum.go 'https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -arm"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+freebsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32 -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -netbsd -arm"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+netbsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32 -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -openbsd -arm"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+openbsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+solaris_amd64)
+	mksyscall="go run mksyscall_solaris.go"
+	mkerrors="$mkerrors -m64"
+	mksysnum=
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+*)
+	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+esac
+
+(
+	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
+	case "$GOOS" in
+	*)
+		syscall_goos="syscall_$GOOS.go"
+		case "$GOOS" in
+		darwin | dragonfly | freebsd | netbsd | openbsd)
+			syscall_goos="syscall_bsd.go $syscall_goos"
+			;;
+		esac
+		if [ -n "$mksyscall" ]; then
+			if [ "$GOOSARCH" == "aix_ppc64" ]; then
+				# aix/ppc64 script generates files instead of writing to stdin.
+				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in && gofmt -w zsyscall_$GOOSARCH.go && gofmt -w zsyscall_"$GOOSARCH"_gccgo.go && gofmt -w zsyscall_"$GOOSARCH"_gc.go " ;
+			elif [ "$GOOS" == "darwin" ]; then
+			        # pre-1.12, direct syscalls
+			        echo "$mksyscall -tags $GOOS,$GOARCH,!go1.12 $syscall_goos syscall_darwin_${GOARCH}.1_11.go $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.1_11.go";
+			        # 1.12 and later, syscalls via libSystem
+				echo "$mksyscall -tags $GOOS,$GOARCH,go1.12 $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
+				# 1.13 and later, syscalls via libSystem (including syscallPtr)
+				echo "$mksyscall -tags $GOOS,$GOARCH,go1.13 syscall_darwin.1_13.go |gofmt >zsyscall_$GOOSARCH.1_13.go";
+			else
+				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
+			fi
+		fi
+	esac
+	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
+	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
+	if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go"; fi
+	if [ -n "$mkasm" ]; then echo "$mkasm $GOARCH"; fi
+) | $run

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -0,0 +1,684 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Generate Go code listing errors and other #defined constant
+# values (ENAMETOOLONG etc.), by asking the preprocessor
+# about the definitions.
+
+unset LANG
+export LC_ALL=C
+export LC_CTYPE=C
+
+if test -z "$GOARCH" -o -z "$GOOS"; then
+	echo 1>&2 "GOARCH or GOOS not defined in environment"
+	exit 1
+fi
+
+# Check that we are using the new build system if we should
+if [[ "$GOOS" = "linux" ]] && [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
+	echo 1>&2 "In the Docker based build system, mkerrors should not be called directly."
+	echo 1>&2 "See README.md"
+	exit 1
+fi
+
+if [[ "$GOOS" = "aix" ]]; then
+	CC=${CC:-gcc}
+else
+	CC=${CC:-cc}
+fi
+
+if [[ "$GOOS" = "solaris" ]]; then
+	# Assumes GNU versions of utilities in PATH.
+	export PATH=/usr/gnu/bin:$PATH
+fi
+
+uname=$(uname)
+
+includes_AIX='
+#include <net/if.h>
+#include <net/netopt.h>
+#include <netinet/ip_mroute.h>
+#include <sys/protosw.h>
+#include <sys/stropts.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/termio.h>
+#include <termios.h>
+#include <fcntl.h>
+
+#define AF_LOCAL AF_UNIX
+'
+
+includes_Darwin='
+#define _DARWIN_C_SOURCE
+#define KERNEL
+#define _DARWIN_USE_64_BIT_INODE
+#include <stdint.h>
+#include <sys/attr.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/ptrace.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+#include <sys/xattr.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <termios.h>
+'
+
+includes_DragonFly='
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <net/ip_mroute/ip_mroute.h>
+'
+
+includes_FreeBSD='
+#include <sys/capsicum.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <sys/extattr.h>
+
+#if __FreeBSD__ >= 10
+#define IFT_CARP	0xf8	// IFT_CARP is deprecated in FreeBSD 10
+#undef SIOCAIFADDR
+#define SIOCAIFADDR	_IOW(105, 26, struct oifaliasreq)	// ifaliasreq contains if_data
+#undef SIOCSIFPHYADDR
+#define SIOCSIFPHYADDR	_IOW(105, 70, struct oifaliasreq)	// ifaliasreq contains if_data
+#endif
+'
+
+includes_Linux='
+#define _LARGEFILE_SOURCE
+#define _LARGEFILE64_SOURCE
+#ifndef __LP64__
+#define _FILE_OFFSET_BITS 64
+#endif
+#define _GNU_SOURCE
+
+// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
+// these structures. We just include them copied from <bits/termios.h>.
+#if defined(__powerpc__)
+struct sgttyb {
+        char    sg_ispeed;
+        char    sg_ospeed;
+        char    sg_erase;
+        char    sg_kill;
+        short   sg_flags;
+};
+
+struct tchars {
+        char    t_intrc;
+        char    t_quitc;
+        char    t_startc;
+        char    t_stopc;
+        char    t_eofc;
+        char    t_brkc;
+};
+
+struct ltchars {
+        char    t_suspc;
+        char    t_dsuspc;
+        char    t_rprntc;
+        char    t_flushc;
+        char    t_werasc;
+        char    t_lnextc;
+};
+#endif
+
+#include <bits/sockaddr.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <sys/inotify.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/select.h>
+#include <sys/signalfd.h>
+#include <sys/socket.h>
+#include <sys/xattr.h>
+#include <linux/bpf.h>
+#include <linux/can.h>
+#include <linux/capability.h>
+#include <linux/cryptouser.h>
+#include <linux/errqueue.h>
+#include <linux/falloc.h>
+#include <linux/fanotify.h>
+#include <linux/filter.h>
+#include <linux/fs.h>
+#include <linux/genetlink.h>
+#include <linux/hdreg.h>
+#include <linux/icmpv6.h>
+#include <linux/if.h>
+#include <linux/if_addr.h>
+#include <linux/if_alg.h>
+#include <linux/if_arp.h>
+#include <linux/if_ether.h>
+#include <linux/if_ppp.h>
+#include <linux/if_tun.h>
+#include <linux/if_packet.h>
+#include <linux/if_xdp.h>
+#include <linux/kexec.h>
+#include <linux/keyctl.h>
+#include <linux/loop.h>
+#include <linux/magic.h>
+#include <linux/memfd.h>
+#include <linux/module.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netlink.h>
+#include <linux/net_namespace.h>
+#include <linux/nsfs.h>
+#include <linux/perf_event.h>
+#include <linux/ptrace.h>
+#include <linux/random.h>
+#include <linux/reboot.h>
+#include <linux/rtc.h>
+#include <linux/rtnetlink.h>
+#include <linux/sched.h>
+#include <linux/seccomp.h>
+#include <linux/serial.h>
+#include <linux/sockios.h>
+#include <linux/taskstats.h>
+#include <linux/tipc.h>
+#include <linux/vm_sockets.h>
+#include <linux/wait.h>
+#include <linux/watchdog.h>
+
+#include <mtd/ubi-user.h>
+#include <net/route.h>
+
+#if defined(__sparc__)
+// On sparc{,64}, the kernel defines struct termios2 itself which clashes with the
+// definition in glibc. As only the error constants are needed here, include the
+// generic termibits.h (which is included by termbits.h on sparc).
+#include <asm-generic/termbits.h>
+#else
+#include <asm/termbits.h>
+#endif
+
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN    0x20000000
+#endif
+
+#ifndef PTRACE_GETREGS
+#define PTRACE_GETREGS	0xc
+#endif
+
+#ifndef PTRACE_SETREGS
+#define PTRACE_SETREGS	0xd
+#endif
+
+#ifndef SOL_NETLINK
+#define SOL_NETLINK	270
+#endif
+
+#ifdef SOL_BLUETOOTH
+// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
+// but it is already in bluetooth_linux.go
+#undef SOL_BLUETOOTH
+#endif
+
+// Certain constants are missing from the fs/crypto UAPI
+#define FS_KEY_DESC_PREFIX              "fscrypt:"
+#define FS_KEY_DESC_PREFIX_SIZE         8
+#define FS_MAX_KEY_SIZE                 64
+
+// The code generator produces -0x1 for (~0), but an unsigned value is necessary
+// for the tipc_subscr timeout __u32 field.
+#undef TIPC_WAIT_FOREVER
+#define TIPC_WAIT_FOREVER 0xffffffff
+'
+
+includes_NetBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/extattr.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+
+// Needed since <sys/param.h> refers to it...
+#define schedppq 1
+'
+
+includes_OpenBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/unistd.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/if_var.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+#include <net/if_bridge.h>
+
+// We keep some constants not supported in OpenBSD 5.5 and beyond for
+// the promise of compatibility.
+#define EMUL_ENABLED		0x1
+#define EMUL_NATIVE		0x2
+#define IPV6_FAITH		0x1d
+#define IPV6_OPTIONS		0x1
+#define IPV6_RTHDR_STRICT	0x1
+#define IPV6_SOCKOPT_RESERVED1	0x3
+#define SIOCGIFGENERIC		0xc020693a
+#define SIOCSIFGENERIC		0x80206939
+#define WALTSIG			0x4
+'
+
+includes_SunOS='
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <sys/mkdev.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+'
+
+
+includes='
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <sys/signal.h>
+#include <signal.h>
+#include <sys/resource.h>
+#include <time.h>
+'
+ccflags="$@"
+
+# Write go tool cgo -godefs input.
+(
+	echo package unix
+	echo
+	echo '/*'
+	indirect="includes_$(uname)"
+	echo "${!indirect} $includes"
+	echo '*/'
+	echo 'import "C"'
+	echo 'import "syscall"'
+	echo
+	echo 'const ('
+
+	# The gcc command line prints all the #defines
+	# it encounters while processing the input
+	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
+	awk '
+		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
+
+		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
+		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
+		$2 ~ /^(SCM_SRCRT)$/ {next}
+		$2 ~ /^(MAP_FAILED)$/ {next}
+		$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
+
+		$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
+		$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
+
+		$2 !~ /^ECCAPBITS/ &&
+		$2 !~ /^ETH_/ &&
+		$2 !~ /^EPROC_/ &&
+		$2 !~ /^EQUIV_/ &&
+		$2 !~ /^EXPR_/ &&
+		$2 ~ /^E[A-Z0-9_]+$/ ||
+		$2 ~ /^B[0-9_]+$/ ||
+		$2 ~ /^(OLD|NEW)DEV$/ ||
+		$2 == "BOTHER" ||
+		$2 ~ /^CI?BAUD(EX)?$/ ||
+		$2 == "IBSHIFT" ||
+		$2 ~ /^V[A-Z0-9]+$/ ||
+		$2 ~ /^CS[A-Z0-9]/ ||
+		$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
+		$2 ~ /^IGN/ ||
+		$2 ~ /^IX(ON|ANY|OFF)$/ ||
+		$2 ~ /^IN(LCR|PCK)$/ ||
+		$2 !~ "X86_CR3_PCID_NOFLUSH" &&
+		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
+		$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
+		$2 == "BRKINT" ||
+		$2 == "HUPCL" ||
+		$2 == "PENDIN" ||
+		$2 == "TOSTOP" ||
+		$2 == "XCASE" ||
+		$2 == "ALTWERASE" ||
+		$2 == "NOKERNINFO" ||
+		$2 == "NFDBITS" ||
+		$2 ~ /^PAR/ ||
+		$2 ~ /^SIG[^_]/ ||
+		$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
+		$2 ~ /^O?XTABS$/ ||
+		$2 ~ /^TC[IO](ON|OFF)$/ ||
+		$2 ~ /^IN_/ ||
+		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
+		$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
+		$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|MCAST|EVFILT|NOTE|EV|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 ~ /^TP_STATUS_/ ||
+		$2 ~ /^FALLOC_/ ||
+		$2 == "ICMPV6_FILTER" ||
+		$2 == "SOMAXCONN" ||
+		$2 == "NAME_MAX" ||
+		$2 == "IFNAMSIZ" ||
+		$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
+		$2 ~ /^HW_MACHINE$/ ||
+		$2 ~ /^SYSCTL_VERS/ ||
+		$2 !~ "MNT_BITS" &&
+		$2 ~ /^(MS|MNT|UMOUNT)_/ ||
+		$2 ~ /^NS_GET_/ ||
+		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
+		$2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT)_/ ||
+		$2 ~ /^KEXEC_/ ||
+		$2 ~ /^LINUX_REBOOT_CMD_/ ||
+		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
+		$2 ~ /^MODULE_INIT_/ ||
+		$2 !~ "NLA_TYPE_MASK" &&
+		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
+		$2 ~ /^SIOC/ ||
+		$2 ~ /^TIOC/ ||
+		$2 ~ /^TCGET/ ||
+		$2 ~ /^TCSET/ ||
+		$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
+		$2 !~ "RTF_BITS" &&
+		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
+		$2 ~ /^BIOC/ ||
+		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
+		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
+		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
+		$2 ~ /^CLONE_[A-Z_]+/ ||
+		$2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+)$/ &&
+		$2 ~ /^(BPF|DLT)_/ ||
+		$2 ~ /^(CLOCK|TIMER)_/ ||
+		$2 ~ /^CAN_/ ||
+		$2 ~ /^CAP_/ ||
+		$2 ~ /^ALG_/ ||
+		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
+		$2 ~ /^GRND_/ ||
+		$2 ~ /^RND/ ||
+		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
+		$2 ~ /^KEYCTL_/ ||
+		$2 ~ /^PERF_EVENT_IOC_/ ||
+		$2 ~ /^SECCOMP_MODE_/ ||
+		$2 ~ /^SPLICE_/ ||
+		$2 ~ /^SYNC_FILE_RANGE_/ ||
+		$2 !~ /^AUDIT_RECORD_MAGIC/ &&
+		$2 !~ /IOC_MAGIC/ &&
+		$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
+		$2 ~ /^(VM|VMADDR)_/ ||
+		$2 ~ /^IOCTL_VM_SOCKETS_/ ||
+		$2 ~ /^(TASKSTATS|TS)_/ ||
+		$2 ~ /^CGROUPSTATS_/ ||
+		$2 ~ /^GENL_/ ||
+		$2 ~ /^STATX_/ ||
+		$2 ~ /^RENAME/ ||
+		$2 ~ /^UBI_IOC[A-Z]/ ||
+		$2 ~ /^UTIME_/ ||
+		$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
+		$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
+		$2 ~ /^FSOPT_/ ||
+		$2 ~ /^WDIOC_/ ||
+		$2 ~ /^NFN/ ||
+		$2 ~ /^XDP_/ ||
+		$2 ~ /^(HDIO|WIN|SMART)_/ ||
+		$2 ~ /^CRYPTO_/ ||
+		$2 ~ /^TIPC_/ ||
+		$2 !~ "WMESGLEN" &&
+		$2 ~ /^W[A-Z0-9]+$/ ||
+		$2 ~/^PPPIOC/ ||
+		$2 ~ /^FAN_|FANOTIFY_/ ||
+		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
+		$2 ~ /^__WCOREFLAG$/ {next}
+		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
+
+		{next}
+	' | sort
+
+	echo ')'
+) >_const.go
+
+# Pull out the error names for later.
+errors=$(
+	echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
+	sort
+)
+
+# Pull out the signal names for later.
+signals=$(
+	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort
+)
+
+# Again, writing regexps to a file.
+echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	sort >_error.grep
+echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort >_signal.grep
+
+echo '// mkerrors.sh' "$@"
+echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
+echo
+echo "// +build ${GOARCH},${GOOS}"
+echo
+go tool cgo -godefs -- "$@" _const.go >_error.out
+cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
+echo
+echo '// Errors'
+echo 'const ('
+cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
+echo ')'
+
+echo
+echo '// Signals'
+echo 'const ('
+cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
+echo ')'
+
+# Run C program to print error and syscall strings.
+(
+	echo -E "
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <signal.h>
+
+#define nelem(x) (sizeof(x)/sizeof((x)[0]))
+
+enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
+
+struct tuple {
+	int num;
+	const char *name;
+};
+
+struct tuple errors[] = {
+"
+	for i in $errors
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	echo -E "
+};
+
+struct tuple signals[] = {
+"
+	for i in $signals
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	# Use -E because on some systems bash builtin interprets \n itself.
+	echo -E '
+};
+
+static int
+tuplecmp(const void *a, const void *b)
+{
+	return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
+}
+
+int
+main(void)
+{
+	int i, e;
+	char buf[1024], *p;
+
+	printf("\n\n// Error table\n");
+	printf("var errorList = [...]struct {\n");
+	printf("\tnum  syscall.Errno\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
+	for(i=0; i<nelem(errors); i++) {
+		e = errors[i].num;
+		if(i > 0 && errors[i-1].num == e)
+			continue;
+		strcpy(buf, strerror(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
+	}
+	printf("}\n\n");
+
+	printf("\n\n// Signal table\n");
+	printf("var signalList = [...]struct {\n");
+	printf("\tnum  syscall.Signal\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
+	for(i=0; i<nelem(signals); i++) {
+		e = signals[i].num;
+		if(i > 0 && signals[i-1].num == e)
+			continue;
+		strcpy(buf, strsignal(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		// cut trailing : number.
+		p = strrchr(buf, ":"[0]);
+		if(p)
+			*p = '\0';
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
+	}
+	printf("}\n\n");
+
+	return 0;
+}
+
+'
+) >_errors.c
+
+$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

vendor/golang.org/x/sys/unix/pagesize_unix.go

@@ -0,0 +1,15 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// For Unix, get the pagesize from the runtime.
+
+package unix
+
+import "syscall"
+
+func Getpagesize() int {
+	return syscall.Getpagesize()
+}

vendor/golang.org/x/sys/unix/pledge_openbsd.go

@@ -0,0 +1,163 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"syscall"
+	"unsafe"
+)
+
+// Pledge implements the pledge syscall.
+//
+// The pledge syscall does not accept execpromises on OpenBSD releases
+// before 6.3.
+//
+// execpromises must be empty when Pledge is called on OpenBSD
+// releases predating 6.3, otherwise an error will be returned.
+//
+// For more information see pledge(2).
+func Pledge(promises, execpromises string) error {
+	maj, min, err := majmin()
+	if err != nil {
+		return err
+	}
+
+	err = pledgeAvailable(maj, min, execpromises)
+	if err != nil {
+		return err
+	}
+
+	pptr, err := syscall.BytePtrFromString(promises)
+	if err != nil {
+		return err
+	}
+
+	// This variable will hold either a nil unsafe.Pointer or
+	// an unsafe.Pointer to a string (execpromises).
+	var expr unsafe.Pointer
+
+	// If we're running on OpenBSD > 6.2, pass execpromises to the syscall.
+	if maj > 6 || (maj == 6 && min > 2) {
+		exptr, err := syscall.BytePtrFromString(execpromises)
+		if err != nil {
+			return err
+		}
+		expr = unsafe.Pointer(exptr)
+	}
+
+	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
+	if e != 0 {
+		return e
+	}
+
+	return nil
+}
+
+// PledgePromises implements the pledge syscall.
+//
+// This changes the promises and leaves the execpromises untouched.
+//
+// For more information see pledge(2).
+func PledgePromises(promises string) error {
+	maj, min, err := majmin()
+	if err != nil {
+		return err
+	}
+
+	err = pledgeAvailable(maj, min, "")
+	if err != nil {
+		return err
+	}
+
+	// This variable holds the execpromises and is always nil.
+	var expr unsafe.Pointer
+
+	pptr, err := syscall.BytePtrFromString(promises)
+	if err != nil {
+		return err
+	}
+
+	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
+	if e != 0 {
+		return e
+	}
+
+	return nil
+}
+
+// PledgeExecpromises implements the pledge syscall.
+//
+// This changes the execpromises and leaves the promises untouched.
+//
+// For more information see pledge(2).
+func PledgeExecpromises(execpromises string) error {
+	maj, min, err := majmin()
+	if err != nil {
+		return err
+	}
+
+	err = pledgeAvailable(maj, min, execpromises)
+	if err != nil {
+		return err
+	}
+
+	// This variable holds the promises and is always nil.
+	var pptr unsafe.Pointer
+
+	exptr, err := syscall.BytePtrFromString(execpromises)
+	if err != nil {
+		return err
+	}
+
+	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(pptr), uintptr(unsafe.Pointer(exptr)), 0)
+	if e != 0 {
+		return e
+	}
+
+	return nil
+}
+
+// majmin returns major and minor version number for an OpenBSD system.
+func majmin() (major int, minor int, err error) {
+	var v Utsname
+	err = Uname(&v)
+	if err != nil {
+		return
+	}
+
+	major, err = strconv.Atoi(string(v.Release[0]))
+	if err != nil {
+		err = errors.New("cannot parse major version number returned by uname")
+		return
+	}
+
+	minor, err = strconv.Atoi(string(v.Release[2]))
+	if err != nil {
+		err = errors.New("cannot parse minor version number returned by uname")
+		return
+	}
+
+	return
+}
+
+// pledgeAvailable checks for availability of the pledge(2) syscall
+// based on the running OpenBSD version.
+func pledgeAvailable(maj, min int, execpromises string) error {
+	// If OpenBSD <= 5.9, pledge is not available.
+	if (maj == 5 && min != 9) || maj < 5 {
+		return fmt.Errorf("pledge syscall is not available on OpenBSD %d.%d", maj, min)
+	}
+
+	// If OpenBSD <= 6.2 and execpromises is not empty,
+	// return an error - execpromises is not available before 6.3
+	if (maj < 6 || (maj == 6 && min <= 2)) && execpromises != "" {
+		return fmt.Errorf("cannot use execpromises on OpenBSD %d.%d", maj, min)
+	}
+
+	return nil
+}

vendor/golang.org/x/sys/unix/race.go

@@ -0,0 +1,30 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin,race linux,race freebsd,race
+
+package unix
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+const raceenabled = true
+
+func raceAcquire(addr unsafe.Pointer) {
+	runtime.RaceAcquire(addr)
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+	runtime.RaceReleaseMerge(addr)
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+	runtime.RaceReadRange(addr, len)
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+	runtime.RaceWriteRange(addr, len)
+}

vendor/golang.org/x/sys/unix/race0.go

@@ -0,0 +1,25 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin,!race linux,!race freebsd,!race netbsd openbsd solaris dragonfly
+
+package unix
+
+import (
+	"unsafe"
+)
+
+const raceenabled = false
+
+func raceAcquire(addr unsafe.Pointer) {
+}
+
+func raceReleaseMerge(addr unsafe.Pointer) {
+}
+
+func raceReadRange(addr unsafe.Pointer, len int) {
+}
+
+func raceWriteRange(addr unsafe.Pointer, len int) {
+}

vendor/golang.org/x/sys/unix/readdirent_getdents.go

@@ -0,0 +1,12 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix dragonfly freebsd linux netbsd openbsd
+
+package unix
+
+// ReadDirent reads directory entries from fd and writes them into buf.
+func ReadDirent(fd int, buf []byte) (n int, err error) {
+	return Getdents(fd, buf)
+}

vendor/golang.org/x/sys/unix/readdirent_getdirentries.go

@@ -0,0 +1,19 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin
+
+package unix
+
+import "unsafe"
+
+// ReadDirent reads directory entries from fd and writes them into buf.
+func ReadDirent(fd int, buf []byte) (n int, err error) {
+	// Final argument is (basep *uintptr) and the syscall doesn't take nil.
+	// 64 bits should be enough. (32 bits isn't even on 386). Since the
+	// actual system call is getdirentries64, 64 is a good guess.
+	// TODO(rsc): Can we use a single global basep for all calls?
+	var base = (*uintptr)(unsafe.Pointer(new(uint64)))
+	return Getdirentries(fd, buf, base)
+}

vendor/golang.org/x/sys/unix/sockcmsg_linux.go

@@ -0,0 +1,36 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Socket control messages
+
+package unix
+
+import "unsafe"
+
+// UnixCredentials encodes credentials into a socket control message
+// for sending to another process. This can be used for
+// authentication.
+func UnixCredentials(ucred *Ucred) []byte {
+	b := make([]byte, CmsgSpace(SizeofUcred))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_SOCKET
+	h.Type = SCM_CREDENTIALS
+	h.SetLen(CmsgLen(SizeofUcred))
+	*((*Ucred)(cmsgData(h))) = *ucred
+	return b
+}
+
+// ParseUnixCredentials decodes a socket control message that contains
+// credentials in a Ucred structure. To receive such a message, the
+// SO_PASSCRED option must be enabled on the socket.
+func ParseUnixCredentials(m *SocketControlMessage) (*Ucred, error) {
+	if m.Header.Level != SOL_SOCKET {
+		return nil, EINVAL
+	}
+	if m.Header.Type != SCM_CREDENTIALS {
+		return nil, EINVAL
+	}
+	ucred := *(*Ucred)(unsafe.Pointer(&m.Data[0]))
+	return &ucred, nil
+}

vendor/golang.org/x/sys/unix/sockcmsg_unix.go

@@ -0,0 +1,120 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Socket control messages
+
+package unix
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := SizeofPtr
+
+	switch runtime.GOOS {
+	case "aix":
+		// There is no alignment on AIX.
+		salign = 1
+	case "darwin", "dragonfly", "solaris", "illumos":
+		// NOTE: It seems like 64-bit Darwin, DragonFly BSD,
+		// illumos, and Solaris kernels still require 32-bit
+		// aligned access to network subsystem.
+		if SizeofPtr == 8 {
+			salign = 4
+		}
+	case "netbsd", "openbsd":
+		// NetBSD and OpenBSD armv7 require 64-bit alignment.
+		if runtime.GOARCH == "arm" {
+			salign = 8
+		}
+	}
+
+	return (salen + salign - 1) & ^(salign - 1)
+}
+
+// CmsgLen returns the value to store in the Len field of the Cmsghdr
+// structure, taking into account any necessary alignment.
+func CmsgLen(datalen int) int {
+	return cmsgAlignOf(SizeofCmsghdr) + datalen
+}
+
+// CmsgSpace returns the number of bytes an ancillary element with
+// payload of the passed data length occupies.
+func CmsgSpace(datalen int) int {
+	return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
+}
+
+func cmsgData(h *Cmsghdr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+}
+
+// SocketControlMessage represents a socket control message.
+type SocketControlMessage struct {
+	Header Cmsghdr
+	Data   []byte
+}
+
+// ParseSocketControlMessage parses b as an array of socket control
+// messages.
+func ParseSocketControlMessage(b []byte) ([]SocketControlMessage, error) {
+	var msgs []SocketControlMessage
+	i := 0
+	for i+CmsgLen(0) <= len(b) {
+		h, dbuf, err := socketControlMessageHeaderAndData(b[i:])
+		if err != nil {
+			return nil, err
+		}
+		m := SocketControlMessage{Header: *h, Data: dbuf}
+		msgs = append(msgs, m)
+		i += cmsgAlignOf(int(h.Len))
+	}
+	return msgs, nil
+}
+
+func socketControlMessageHeaderAndData(b []byte) (*Cmsghdr, []byte, error) {
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	if h.Len < SizeofCmsghdr || uint64(h.Len) > uint64(len(b)) {
+		return nil, nil, EINVAL
+	}
+	return h, b[cmsgAlignOf(SizeofCmsghdr):h.Len], nil
+}
+
+// UnixRights encodes a set of open file descriptors into a socket
+// control message for sending to another process.
+func UnixRights(fds ...int) []byte {
+	datalen := len(fds) * 4
+	b := make([]byte, CmsgSpace(datalen))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_SOCKET
+	h.Type = SCM_RIGHTS
+	h.SetLen(CmsgLen(datalen))
+	data := cmsgData(h)
+	for _, fd := range fds {
+		*(*int32)(data) = int32(fd)
+		data = unsafe.Pointer(uintptr(data) + 4)
+	}
+	return b
+}
+
+// ParseUnixRights decodes a socket control message that contains an
+// integer array of open file descriptors from another process.
+func ParseUnixRights(m *SocketControlMessage) ([]int, error) {
+	if m.Header.Level != SOL_SOCKET {
+		return nil, EINVAL
+	}
+	if m.Header.Type != SCM_RIGHTS {
+		return nil, EINVAL
+	}
+	fds := make([]int, len(m.Data)>>2)
+	for i, j := 0, 0; i < len(m.Data); i += 4 {
+		fds[j] = int(*(*int32)(unsafe.Pointer(&m.Data[i])))
+		j++
+	}
+	return fds, nil
+}

vendor/golang.org/x/sys/unix/str.go

@@ -0,0 +1,26 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+func itoa(val int) string { // do it here rather than with fmt to avoid dependency
+	if val < 0 {
+		return "-" + uitoa(uint(-val))
+	}
+	return uitoa(uint(val))
+}
+
+func uitoa(val uint) string {
+	var buf [32]byte // big enough for int64
+	i := len(buf) - 1
+	for val >= 10 {
+		buf[i] = byte(val%10 + '0')
+		i--
+		val /= 10
+	}
+	buf[i] = byte(val + '0')
+	return string(buf[i:])
+}

vendor/golang.org/x/sys/unix/syscall.go

@@ -0,0 +1,53 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+// Package unix contains an interface to the low-level operating system
+// primitives. OS details vary depending on the underlying system, and
+// by default, godoc will display OS-specific documentation for the current
+// system. If you want godoc to display OS documentation for another
+// system, set $GOOS and $GOARCH to the desired system. For example, if
+// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
+// to freebsd and $GOARCH to arm.
+//
+// The primary use of this package is inside other packages that provide a more
+// portable interface to the system, such as "os", "time" and "net".  Use
+// those packages rather than this one if you can.
+//
+// For details of the functions and data types in this package consult
+// the manuals for the appropriate operating system.
+//
+// These calls return err == nil to indicate success; otherwise
+// err represents an operating system error describing the failure and
+// holds a value of type syscall.Errno.
+package unix // import "golang.org/x/sys/unix"
+
+import "strings"
+
+// ByteSliceFromString returns a NUL-terminated slice of bytes
+// containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func ByteSliceFromString(s string) ([]byte, error) {
+	if strings.IndexByte(s, 0) != -1 {
+		return nil, EINVAL
+	}
+	a := make([]byte, len(s)+1)
+	copy(a, s)
+	return a, nil
+}
+
+// BytePtrFromString returns a pointer to a NUL-terminated array of
+// bytes containing the text of s. If s contains a NUL byte at any
+// location, it returns (nil, EINVAL).
+func BytePtrFromString(s string) (*byte, error) {
+	a, err := ByteSliceFromString(s)
+	if err != nil {
+		return nil, err
+	}
+	return &a[0], nil
+}
+
+// Single-word zero for use when we need a valid pointer to 0 bytes.
+var _zero uintptr

vendor/golang.org/x/sys/unix/syscall_aix.go

@@ -0,0 +1,536 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+
+// Aix system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and
+// wrap it in our own nicer implementation.
+
+package unix
+
+import "unsafe"
+
+/*
+ * Wrapped
+ */
+
+//sys	utimes(path string, times *[2]Timeval) (err error)
+func Utimes(path string, tv []Timeval) error {
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys	utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error)
+func UtimesNano(path string, ts []Timespec) error {
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+}
+
+func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
+	if ts == nil {
+		return utimensat(dirfd, path, nil, flags)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
+}
+
+func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_INET
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
+}
+
+func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_INET6
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	sa.raw.Scope_id = sa.ZoneId
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
+}
+
+func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	name := sa.Name
+	n := len(name)
+	if n > len(sa.raw.Path) {
+		return nil, 0, EINVAL
+	}
+	if n == len(sa.raw.Path) && name[0] != '@' {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Family = AF_UNIX
+	for i := 0; i < n; i++ {
+		sa.raw.Path[i] = uint8(name[i])
+	}
+	// length is family (uint16), name, NUL.
+	sl := _Socklen(2)
+	if n > 0 {
+		sl += _Socklen(n) + 1
+	}
+	if sa.raw.Path[0] == '@' {
+		sa.raw.Path[0] = 0
+		// Don't count trailing NUL for abstract address.
+		sl--
+	}
+
+	return unsafe.Pointer(&sa.raw), sl, nil
+}
+
+func Getsockname(fd int) (sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	if err = getsockname(fd, &rsa, &len); err != nil {
+		return
+	}
+	return anyToSockaddr(fd, &rsa)
+}
+
+//sys	getcwd(buf []byte) (err error)
+
+const ImplementsGetwd = true
+
+func Getwd() (ret string, err error) {
+	for len := uint64(4096); ; len *= 2 {
+		b := make([]byte, len)
+		err := getcwd(b)
+		if err == nil {
+			i := 0
+			for b[i] != 0 {
+				i++
+			}
+			return string(b[0:i]), nil
+		}
+		if err != ERANGE {
+			return "", err
+		}
+	}
+}
+
+func Getcwd(buf []byte) (n int, err error) {
+	err = getcwd(buf)
+	if err == nil {
+		i := 0
+		for buf[i] != 0 {
+			i++
+		}
+		n = i + 1
+	}
+	return
+}
+
+func Getgroups() (gids []int, err error) {
+	n, err := getgroups(0, nil)
+	if err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Sanity check group count. Max is 16 on BSD.
+	if n < 0 || n > 1000 {
+		return nil, EINVAL
+	}
+
+	a := make([]_Gid_t, n)
+	n, err = getgroups(n, &a[0])
+	if err != nil {
+		return nil, err
+	}
+	gids = make([]int, n)
+	for i, v := range a[0:n] {
+		gids[i] = int(v)
+	}
+	return
+}
+
+func Setgroups(gids []int) (err error) {
+	if len(gids) == 0 {
+		return setgroups(0, nil)
+	}
+
+	a := make([]_Gid_t, len(gids))
+	for i, v := range gids {
+		a[i] = _Gid_t(v)
+	}
+	return setgroups(len(a), &a[0])
+}
+
+/*
+ * Socket
+ */
+
+//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
+
+func Accept(fd int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept(fd, &rsa, &len)
+	if nfd == -1 {
+		return
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
+	// Recvmsg not implemented on AIX
+	sa := new(SockaddrUnix)
+	return -1, -1, -1, sa, ENOSYS
+}
+
+func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
+	_, err = SendmsgN(fd, p, oob, to, flags)
+	return
+}
+
+func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
+	// SendmsgN not implemented on AIX
+	return -1, ENOSYS
+}
+
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	switch rsa.Addr.Family {
+
+	case AF_UNIX:
+		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+		sa := new(SockaddrUnix)
+
+		// Some versions of AIX have a bug in getsockname (see IV78655).
+		// We can't rely on sa.Len being set correctly.
+		n := SizeofSockaddrUnix - 3 // subtract leading Family, Len, terminating NUL.
+		for i := 0; i < n; i++ {
+			if pp.Path[i] == 0 {
+				n = i
+				break
+			}
+		}
+
+		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		sa.Name = string(bytes)
+		return sa, nil
+
+	case AF_INET:
+		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet4)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+
+	case AF_INET6:
+		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet6)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		sa.ZoneId = pp.Scope_id
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+	}
+	return nil, EAFNOSUPPORT
+}
+
+func Gettimeofday(tv *Timeval) (err error) {
+	err = gettimeofday(tv, nil)
+	return
+}
+
+func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	if raceenabled {
+		raceReleaseMerge(unsafe.Pointer(&ioSync))
+	}
+	return sendfile(outfd, infd, offset, count)
+}
+
+// TODO
+func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+	return -1, ENOSYS
+}
+
+func direntIno(buf []byte) (uint64, bool) {
+	return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
+}
+
+func direntReclen(buf []byte) (uint64, bool) {
+	return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
+}
+
+func direntNamlen(buf []byte) (uint64, bool) {
+	reclen, ok := direntReclen(buf)
+	if !ok {
+		return 0, false
+	}
+	return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
+}
+
+//sys	getdirent(fd int, buf []byte) (n int, err error)
+func Getdents(fd int, buf []byte) (n int, err error) {
+	return getdirent(fd, buf)
+}
+
+//sys	wait4(pid Pid_t, status *_C_int, options int, rusage *Rusage) (wpid Pid_t, err error)
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
+	var status _C_int
+	var r Pid_t
+	err = ERESTART
+	// AIX wait4 may return with ERESTART errno, while the processus is still
+	// active.
+	for err == ERESTART {
+		r, err = wait4(Pid_t(pid), &status, options, rusage)
+	}
+	wpid = int(r)
+	if wstatus != nil {
+		*wstatus = WaitStatus(status)
+	}
+	return
+}
+
+/*
+ * Wait
+ */
+
+type WaitStatus uint32
+
+func (w WaitStatus) Stopped() bool { return w&0x40 != 0 }
+func (w WaitStatus) StopSignal() Signal {
+	if !w.Stopped() {
+		return -1
+	}
+	return Signal(w>>8) & 0xFF
+}
+
+func (w WaitStatus) Exited() bool { return w&0xFF == 0 }
+func (w WaitStatus) ExitStatus() int {
+	if !w.Exited() {
+		return -1
+	}
+	return int((w >> 8) & 0xFF)
+}
+
+func (w WaitStatus) Signaled() bool { return w&0x40 == 0 && w&0xFF != 0 }
+func (w WaitStatus) Signal() Signal {
+	if !w.Signaled() {
+		return -1
+	}
+	return Signal(w>>16) & 0xFF
+}
+
+func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 }
+
+func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 }
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+
+// fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
+// There is no way to create a custom fcntl and to keep //sys fcntl easily,
+// Therefore, the programmer must call dup2 instead of fcntl in this case.
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+//sys	FcntlInt(fd uintptr, cmd int, arg int) (r int,err error) = fcntl
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+//sys	FcntlFlock(fd uintptr, cmd int, lk *Flock_t) (err error) = fcntl
+
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+
+/*
+ * Direct access
+ */
+
+//sys	Acct(path string) (err error)
+//sys	Chdir(path string) (err error)
+//sys	Chroot(path string) (err error)
+//sys	Close(fd int) (err error)
+//sys	Dup(oldfd int) (fd int, err error)
+//sys	Exit(code int)
+//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchdir(fd int) (err error)
+//sys	Fchmod(fd int, mode uint32) (err error)
+//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys	Fdatasync(fd int) (err error)
+//sys	Fsync(fd int) (err error)
+// readdir_r
+//sysnb	Getpgid(pid int) (pgid int, err error)
+
+//sys	Getpgrp() (pid int)
+
+//sysnb	Getpid() (pid int)
+//sysnb	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (prio int, err error)
+//sysnb	Getrusage(who int, rusage *Rusage) (err error)
+//sysnb	Getsid(pid int) (sid int, err error)
+//sysnb	Kill(pid int, sig Signal) (err error)
+//sys	Klogctl(typ int, buf []byte) (n int, err error) = syslog
+//sys	Mkdir(dirfd int, path string, mode uint32) (err error)
+//sys	Mkdirat(dirfd int, path string, mode uint32) (err error)
+//sys	Mkfifo(path string, mode uint32) (err error)
+//sys	Mknod(path string, mode uint32, dev int) (err error)
+//sys	Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
+//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys   Open(path string, mode int, perm uint32) (fd int, err error) = open64
+//sys   Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
+//sys	read(fd int, p []byte) (n int, err error)
+//sys	Readlink(path string, buf []byte) (n int, err error)
+//sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
+//sys	Setdomainname(p []byte) (err error)
+//sys	Sethostname(p []byte) (err error)
+//sysnb	Setpgid(pid int, pgid int) (err error)
+//sysnb	Setsid() (pid int, err error)
+//sysnb	Settimeofday(tv *Timeval) (err error)
+
+//sys	Setuid(uid int) (err error)
+//sys	Setgid(uid int) (err error)
+
+//sys	Setpriority(which int, who int, prio int) (err error)
+//sys	Statx(dirfd int, path string, flags int, mask int, stat *Statx_t) (err error)
+//sys	Sync()
+//sysnb	Times(tms *Tms) (ticks uintptr, err error)
+//sysnb	Umask(mask int) (oldmask int)
+//sysnb	Uname(buf *Utsname) (err error)
+//sys   Unlink(path string) (err error)
+//sys   Unlinkat(dirfd int, path string, flags int) (err error)
+//sys	Ustat(dev int, ubuf *Ustat_t) (err error)
+//sys	write(fd int, p []byte) (n int, err error)
+//sys	readlen(fd int, p *byte, np int) (n int, err error) = read
+//sys	writelen(fd int, p *byte, np int) (n int, err error) = write
+
+//sys	Dup2(oldfd int, newfd int) (err error)
+//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64
+//sys	Fchown(fd int, uid int, gid int) (err error)
+//sys	fstat(fd int, stat *Stat_t) (err error)
+//sys	fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = fstatat
+//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
+//sys	Ftruncate(fd int, length int64) (err error)
+//sysnb	Getegid() (egid int)
+//sysnb	Geteuid() (euid int)
+//sysnb	Getgid() (gid int)
+//sysnb	Getuid() (uid int)
+//sys	Lchown(path string, uid int, gid int) (err error)
+//sys	Listen(s int, n int) (err error)
+//sys	lstat(path string, stat *Stat_t) (err error)
+//sys	Pause() (err error)
+//sys	Pread(fd int, p []byte, offset int64) (n int, err error) = pread64
+//sys	Pwrite(fd int, p []byte, offset int64) (n int, err error) = pwrite64
+//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sys	Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
+//sysnb	Setregid(rgid int, egid int) (err error)
+//sysnb	Setreuid(ruid int, euid int) (err error)
+//sys	Shutdown(fd int, how int) (err error)
+//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
+//sys	stat(path string, statptr *Stat_t) (err error)
+//sys	Statfs(path string, buf *Statfs_t) (err error)
+//sys	Truncate(path string, length int64) (err error)
+
+//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
+//sysnb	setgroups(n int, list *_Gid_t) (err error)
+//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
+//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+
+// In order to use msghdr structure with Control, Controllen, nrecvmsg and nsendmsg must be used.
+//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = nrecvmsg
+//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = nsendmsg
+
+//sys	munmap(addr uintptr, length uintptr) (err error)
+
+var mapper = &mmapper{
+	active: make(map[*byte][]byte),
+	mmap:   mmap,
+	munmap: munmap,
+}
+
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
+	return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (err error) {
+	return mapper.Munmap(b)
+}
+
+//sys	Madvise(b []byte, advice int) (err error)
+//sys	Mprotect(b []byte, prot int) (err error)
+//sys	Mlock(b []byte) (err error)
+//sys	Mlockall(flags int) (err error)
+//sys	Msync(b []byte, flags int) (err error)
+//sys	Munlock(b []byte) (err error)
+//sys	Munlockall() (err error)
+
+//sysnb pipe(p *[2]_C_int) (err error)
+
+func Pipe(p []int) (err error) {
+	if len(p) != 2 {
+		return EINVAL
+	}
+	var pp [2]_C_int
+	err = pipe(&pp)
+	p[0] = int(pp[0])
+	p[1] = int(pp[1])
+	return
+}
+
+//sys	poll(fds *PollFd, nfds int, timeout int) (n int, err error)
+
+func Poll(fds []PollFd, timeout int) (n int, err error) {
+	if len(fds) == 0 {
+		return poll(nil, 0, timeout)
+	}
+	return poll(&fds[0], len(fds), timeout)
+}
+
+//sys	gettimeofday(tv *Timeval, tzp *Timezone) (err error)
+//sysnb	Time(t *Time_t) (tt Time_t, err error)
+//sys	Utime(path string, buf *Utimbuf) (err error)
+
+//sys	Getsystemcfg(label int) (n uint64)
+
+//sys	umount(target string) (err error)
+func Unmount(target string, flags int) (err error) {
+	if flags != 0 {
+		// AIX doesn't have any flags for umount.
+		return ENOSYS
+	}
+	return umount(target)
+}

vendor/golang.org/x/sys/unix/syscall_aix_ppc.go

@@ -0,0 +1,54 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc
+
+package unix
+
+//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = getrlimit64
+//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error) = setrlimit64
+//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek64
+
+//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int32(sec), Usec: int32(usec)}
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint32(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+func Fstat(fd int, stat *Stat_t) error {
+	return fstat(fd, stat)
+}
+
+func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
+	return fstatat(dirfd, path, stat, flags)
+}
+
+func Lstat(path string, stat *Stat_t) error {
+	return lstat(path, stat)
+}
+
+func Stat(path string, statptr *Stat_t) error {
+	return stat(path, statptr)
+}

vendor/golang.org/x/sys/unix/syscall_aix_ppc64.go

@@ -0,0 +1,85 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+// +build ppc64
+
+package unix
+
+//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
+//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
+//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
+
+//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
+
+func setTimespec(sec, nsec int64) Timespec {
+	return Timespec{Sec: sec, Nsec: nsec}
+}
+
+func setTimeval(sec, usec int64) Timeval {
+	return Timeval{Sec: int64(sec), Usec: int32(usec)}
+}
+
+func (iov *Iovec) SetLen(length int) {
+	iov.Len = uint64(length)
+}
+
+func (msghdr *Msghdr) SetControllen(length int) {
+	msghdr.Controllen = uint32(length)
+}
+
+func (msghdr *Msghdr) SetIovlen(length int) {
+	msghdr.Iovlen = int32(length)
+}
+
+func (cmsg *Cmsghdr) SetLen(length int) {
+	cmsg.Len = uint32(length)
+}
+
+// In order to only have Timespec structure, type of Stat_t's fields
+// Atim, Mtim and Ctim is changed from StTimespec to Timespec during
+// ztypes generation.
+// On ppc64, Timespec.Nsec is an int64 while StTimespec.Nsec is an
+// int32, so the fields' value must be modified.
+func fixStatTimFields(stat *Stat_t) {
+	stat.Atim.Nsec >>= 32
+	stat.Mtim.Nsec >>= 32
+	stat.Ctim.Nsec >>= 32
+}
+
+func Fstat(fd int, stat *Stat_t) error {
+	err := fstat(fd, stat)
+	if err != nil {
+		return err
+	}
+	fixStatTimFields(stat)
+	return nil
+}
+
+func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
+	err := fstatat(dirfd, path, stat, flags)
+	if err != nil {
+		return err
+	}
+	fixStatTimFields(stat)
+	return nil
+}
+
+func Lstat(path string, stat *Stat_t) error {
+	err := lstat(path, stat)
+	if err != nil {
+		return err
+	}
+	fixStatTimFields(stat)
+	return nil
+}
+
+func Stat(path string, statptr *Stat_t) error {
+	err := stat(path, statptr)
+	if err != nil {
+		return err
+	}
+	fixStatTimFields(statptr)
+	return nil
+}

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -0,0 +1,616 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+// BSD system call wrappers shared by *BSD based systems
+// including OS X (Darwin) and FreeBSD.  Like the other
+// syscall_*.go files it is compiled as Go code but also
+// used as input to mksyscall which parses the //sys
+// lines and generates system call stubs.
+
+package unix
+
+import (
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+/*
+ * Wrapped
+ */
+
+//sysnb	getgroups(ngid int, gid *_Gid_t) (n int, err error)
+//sysnb	setgroups(ngid int, gid *_Gid_t) (err error)
+
+func Getgroups() (gids []int, err error) {
+	n, err := getgroups(0, nil)
+	if err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Sanity check group count. Max is 16 on BSD.
+	if n < 0 || n > 1000 {
+		return nil, EINVAL
+	}
+
+	a := make([]_Gid_t, n)
+	n, err = getgroups(n, &a[0])
+	if err != nil {
+		return nil, err
+	}
+	gids = make([]int, n)
+	for i, v := range a[0:n] {
+		gids[i] = int(v)
+	}
+	return
+}
+
+func Setgroups(gids []int) (err error) {
+	if len(gids) == 0 {
+		return setgroups(0, nil)
+	}
+
+	a := make([]_Gid_t, len(gids))
+	for i, v := range gids {
+		a[i] = _Gid_t(v)
+	}
+	return setgroups(len(a), &a[0])
+}
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits.
+
+type WaitStatus uint32
+
+const (
+	mask  = 0x7F
+	core  = 0x80
+	shift = 8
+
+	exited  = 0
+	killed  = 9
+	stopped = 0x7F
+)
+
+func (w WaitStatus) Exited() bool { return w&mask == exited }
+
+func (w WaitStatus) ExitStatus() int {
+	if w&mask != exited {
+		return -1
+	}
+	return int(w >> shift)
+}
+
+func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
+
+func (w WaitStatus) Signal() syscall.Signal {
+	sig := syscall.Signal(w & mask)
+	if sig == stopped || sig == 0 {
+		return -1
+	}
+	return sig
+}
+
+func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
+
+func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
+
+func (w WaitStatus) Killed() bool { return w&mask == killed && syscall.Signal(w>>shift) != SIGKILL }
+
+func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
+
+func (w WaitStatus) StopSignal() syscall.Signal {
+	if !w.Stopped() {
+		return -1
+	}
+	return syscall.Signal(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys	wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error)
+
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
+	var status _C_int
+	wpid, err = wait4(pid, &status, options, rusage)
+	if wstatus != nil {
+		*wstatus = WaitStatus(status)
+	}
+	return
+}
+
+//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
+//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
+//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
+//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
+//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
+//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
+//sys	Shutdown(s int, how int) (err error)
+
+func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = SizeofSockaddrInet4
+	sa.raw.Family = AF_INET
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Port < 0 || sa.Port > 0xFFFF {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = SizeofSockaddrInet6
+	sa.raw.Family = AF_INET6
+	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+	p[0] = byte(sa.Port >> 8)
+	p[1] = byte(sa.Port)
+	sa.raw.Scope_id = sa.ZoneId
+	for i := 0; i < len(sa.Addr); i++ {
+		sa.raw.Addr[i] = sa.Addr[i]
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	name := sa.Name
+	n := len(name)
+	if n >= len(sa.raw.Path) || n == 0 {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
+	sa.raw.Family = AF_UNIX
+	for i := 0; i < n; i++ {
+		sa.raw.Path[i] = int8(name[i])
+	}
+	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
+}
+
+func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	if sa.Index == 0 {
+		return nil, 0, EINVAL
+	}
+	sa.raw.Len = sa.Len
+	sa.raw.Family = AF_LINK
+	sa.raw.Index = sa.Index
+	sa.raw.Type = sa.Type
+	sa.raw.Nlen = sa.Nlen
+	sa.raw.Alen = sa.Alen
+	sa.raw.Slen = sa.Slen
+	for i := 0; i < len(sa.raw.Data); i++ {
+		sa.raw.Data[i] = sa.Data[i]
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrDatalink, nil
+}
+
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+	switch rsa.Addr.Family {
+	case AF_LINK:
+		pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
+		sa := new(SockaddrDatalink)
+		sa.Len = pp.Len
+		sa.Family = pp.Family
+		sa.Index = pp.Index
+		sa.Type = pp.Type
+		sa.Nlen = pp.Nlen
+		sa.Alen = pp.Alen
+		sa.Slen = pp.Slen
+		for i := 0; i < len(sa.Data); i++ {
+			sa.Data[i] = pp.Data[i]
+		}
+		return sa, nil
+
+	case AF_UNIX:
+		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+		if pp.Len < 2 || pp.Len > SizeofSockaddrUnix {
+			return nil, EINVAL
+		}
+		sa := new(SockaddrUnix)
+
+		// Some BSDs include the trailing NUL in the length, whereas
+		// others do not. Work around this by subtracting the leading
+		// family and len. The path is then scanned to see if a NUL
+		// terminator still exists within the length.
+		n := int(pp.Len) - 2 // subtract leading Family, Len
+		for i := 0; i < n; i++ {
+			if pp.Path[i] == 0 {
+				// found early NUL; assume Len included the NUL
+				// or was overestimating.
+				n = i
+				break
+			}
+		}
+		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		sa.Name = string(bytes)
+		return sa, nil
+
+	case AF_INET:
+		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet4)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+
+	case AF_INET6:
+		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+		sa := new(SockaddrInet6)
+		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+		sa.Port = int(p[0])<<8 + int(p[1])
+		sa.ZoneId = pp.Scope_id
+		for i := 0; i < len(sa.Addr); i++ {
+			sa.Addr[i] = pp.Addr[i]
+		}
+		return sa, nil
+	}
+	return nil, EAFNOSUPPORT
+}
+
+func Accept(fd int) (nfd int, sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	nfd, err = accept(fd, &rsa, &len)
+	if err != nil {
+		return
+	}
+	if runtime.GOOS == "darwin" && len == 0 {
+		// Accepted socket has no address.
+		// This is likely due to a bug in xnu kernels,
+		// where instead of ECONNABORTED error socket
+		// is accepted, but has no address.
+		Close(nfd)
+		return 0, nil, ECONNABORTED
+	}
+	sa, err = anyToSockaddr(fd, &rsa)
+	if err != nil {
+		Close(nfd)
+		nfd = 0
+	}
+	return
+}
+
+func Getsockname(fd int) (sa Sockaddr, err error) {
+	var rsa RawSockaddrAny
+	var len _Socklen = SizeofSockaddrAny
+	if err = getsockname(fd, &rsa, &len); err != nil {
+		return
+	}
+	// TODO(jsing): DragonFly has a "bug" (see issue 3349), which should be
+	// reported upstream.
+	if runtime.GOOS == "dragonfly" && rsa.Addr.Family == AF_UNSPEC && rsa.Addr.Len == 0 {
+		rsa.Addr.Family = AF_UNIX
+		rsa.Addr.Len = SizeofSockaddrUnix
+	}
+	return anyToSockaddr(fd, &rsa)
+}
+
+//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
+
+// GetsockoptString returns the string value of the socket option opt for the
+// socket associated with fd at the given socket level.
+func GetsockoptString(fd, level, opt int) (string, error) {
+	buf := make([]byte, 256)
+	vallen := _Socklen(len(buf))
+	err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen)
+	if err != nil {
+		return "", err
+	}
+	return string(buf[:vallen-1]), nil
+}
+
+//sys   recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
+//sys   sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
+//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
+
+func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
+	var msg Msghdr
+	var rsa RawSockaddrAny
+	msg.Name = (*byte)(unsafe.Pointer(&rsa))
+	msg.Namelen = uint32(SizeofSockaddrAny)
+	var iov Iovec
+	if len(p) > 0 {
+		iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+		iov.SetLen(len(p))
+	}
+	var dummy byte
+	if len(oob) > 0 {
+		// receive at least one normal byte
+		if len(p) == 0 {
+			iov.Base = &dummy
+			iov.SetLen(1)
+		}
+		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+		msg.SetControllen(len(oob))
+	}
+	msg.Iov = &iov
+	msg.Iovlen = 1
+	if n, err = recvmsg(fd, &msg, flags); err != nil {
+		return
+	}
+	oobn = int(msg.Controllen)
+	recvflags = int(msg.Flags)
+	// source address is only specified if the socket is unconnected
+	if rsa.Addr.Family != AF_UNSPEC {
+		from, err = anyToSockaddr(fd, &rsa)
+	}
+	return
+}
+
+//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
+
+func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
+	_, err = SendmsgN(fd, p, oob, to, flags)
+	return
+}
+
+func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
+	var ptr unsafe.Pointer
+	var salen _Socklen
+	if to != nil {
+		ptr, salen, err = to.sockaddr()
+		if err != nil {
+			return 0, err
+		}
+	}
+	var msg Msghdr
+	msg.Name = (*byte)(unsafe.Pointer(ptr))
+	msg.Namelen = uint32(salen)
+	var iov Iovec
+	if len(p) > 0 {
+		iov.Base = (*byte)(unsafe.Pointer(&p[0]))
+		iov.SetLen(len(p))
+	}
+	var dummy byte
+	if len(oob) > 0 {
+		// send at least one normal byte
+		if len(p) == 0 {
+			iov.Base = &dummy
+			iov.SetLen(1)
+		}
+		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
+		msg.SetControllen(len(oob))
+	}
+	msg.Iov = &iov
+	msg.Iovlen = 1
+	if n, err = sendmsg(fd, &msg, flags); err != nil {
+		return 0, err
+	}
+	if len(oob) > 0 && len(p) == 0 {
+		n = 0
+	}
+	return n, nil
+}
+
+//sys	kevent(kq int, change unsafe.Pointer, nchange int, event unsafe.Pointer, nevent int, timeout *Timespec) (n int, err error)
+
+func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, err error) {
+	var change, event unsafe.Pointer
+	if len(changes) > 0 {
+		change = unsafe.Pointer(&changes[0])
+	}
+	if len(events) > 0 {
+		event = unsafe.Pointer(&events[0])
+	}
+	return kevent(kq, change, len(changes), event, len(events), timeout)
+}
+
+// sysctlmib translates name to mib number and appends any additional args.
+func sysctlmib(name string, args ...int) ([]_C_int, error) {
+	// Translate name to mib number.
+	mib, err := nametomib(name)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, a := range args {
+		mib = append(mib, _C_int(a))
+	}
+
+	return mib, nil
+}
+
+func Sysctl(name string) (string, error) {
+	return SysctlArgs(name)
+}
+
+func SysctlArgs(name string, args ...int) (string, error) {
+	buf, err := SysctlRaw(name, args...)
+	if err != nil {
+		return "", err
+	}
+	n := len(buf)
+
+	// Throw away terminating NUL.
+	if n > 0 && buf[n-1] == '\x00' {
+		n--
+	}
+	return string(buf[0:n]), nil
+}
+
+func SysctlUint32(name string) (uint32, error) {
+	return SysctlUint32Args(name)
+}
+
+func SysctlUint32Args(name string, args ...int) (uint32, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return 0, err
+	}
+
+	n := uintptr(4)
+	buf := make([]byte, 4)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return 0, err
+	}
+	if n != 4 {
+		return 0, EIO
+	}
+	return *(*uint32)(unsafe.Pointer(&buf[0])), nil
+}
+
+func SysctlUint64(name string, args ...int) (uint64, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return 0, err
+	}
+
+	n := uintptr(8)
+	buf := make([]byte, 8)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return 0, err
+	}
+	if n != 8 {
+		return 0, EIO
+	}
+	return *(*uint64)(unsafe.Pointer(&buf[0])), nil
+}
+
+func SysctlRaw(name string, args ...int) ([]byte, error) {
+	mib, err := sysctlmib(name, args...)
+	if err != nil {
+		return nil, err
+	}
+
+	// Find size.
+	n := uintptr(0)
+	if err := sysctl(mib, nil, &n, nil, 0); err != nil {
+		return nil, err
+	}
+	if n == 0 {
+		return nil, nil
+	}
+
+	// Read into buffer of that size.
+	buf := make([]byte, n)
+	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
+		return nil, err
+	}
+
+	// The actual call may return less than the original reported required
+	// size so ensure we deal with that.
+	return buf[:n], nil
+}
+
+//sys	utimes(path string, timeval *[2]Timeval) (err error)
+
+func Utimes(path string, tv []Timeval) error {
+	if tv == nil {
+		return utimes(path, nil)
+	}
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func UtimesNano(path string, ts []Timespec) error {
+	if ts == nil {
+		err := utimensat(AT_FDCWD, path, nil, 0)
+		if err != ENOSYS {
+			return err
+		}
+		return utimes(path, nil)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	// Darwin setattrlist can set nanosecond timestamps
+	err := setattrlistTimes(path, ts, 0)
+	if err != ENOSYS {
+		return err
+	}
+	err = utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
+	if err != ENOSYS {
+		return err
+	}
+	// Not as efficient as it could be because Timespec and
+	// Timeval have different types in the different OSes
+	tv := [2]Timeval{
+		NsecToTimeval(TimespecToNsec(ts[0])),
+		NsecToTimeval(TimespecToNsec(ts[1])),
+	}
+	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
+	if ts == nil {
+		return utimensat(dirfd, path, nil, flags)
+	}
+	if len(ts) != 2 {
+		return EINVAL
+	}
+	err := setattrlistTimes(path, ts, flags)
+	if err != ENOSYS {
+		return err
+	}
+	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
+}
+
+//sys	futimes(fd int, timeval *[2]Timeval) (err error)
+
+func Futimes(fd int, tv []Timeval) error {
+	if tv == nil {
+		return futimes(fd, nil)
+	}
+	if len(tv) != 2 {
+		return EINVAL
+	}
+	return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+
+//sys   poll(fds *PollFd, nfds int, timeout int) (n int, err error)
+
+func Poll(fds []PollFd, timeout int) (n int, err error) {
+	if len(fds) == 0 {
+		return poll(nil, 0, timeout)
+	}
+	return poll(&fds[0], len(fds), timeout)
+}
+
+// TODO: wrap
+//	Acct(name nil-string) (err error)
+//	Gethostuuid(uuid *byte, timeout *Timespec) (err error)
+//	Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, err error)
+
+var mapper = &mmapper{
+	active: make(map[*byte][]byte),
+	mmap:   mmap,
+	munmap: munmap,
+}
+
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
+	return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (err error) {
+	return mapper.Munmap(b)
+}
+
+//sys	Madvise(b []byte, behav int) (err error)
+//sys	Mlock(b []byte) (err error)
+//sys	Mlockall(flags int) (err error)
+//sys	Mprotect(b []byte, prot int) (err error)
+//sys	Msync(b []byte, flags int) (err error)
+//sys	Munlock(b []byte) (err error)
+//sys	Munlockall() (err error)

vendor/golang.org/x/sys/unix/syscall_darwin.1_12.go

@@ -0,0 +1,29 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin,go1.12,!go1.13
+
+package unix
+
+import (
+	"unsafe"
+)
+
+func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+	// To implement this using libSystem we'd need syscall_syscallPtr for
+	// fdopendir. However, syscallPtr was only added in Go 1.13, so we fall
+	// back to raw syscalls for this func on Go 1.12.
+	var p unsafe.Pointer
+	if len(buf) > 0 {
+		p = unsafe.Pointer(&buf[0])
+	} else {
+		p = unsafe.Pointer(&_zero)
+	}
+	r0, _, e1 := Syscall6(SYS_GETDIRENTRIES64, uintptr(fd), uintptr(p), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		return n, errnoErr(e1)
+	}
+	return n, nil
+}

vendor/golang.org/x/sys/unix/syscall_darwin.1_13.go

@@ -0,0 +1,103 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin,go1.13
+
+package unix
+
+import "unsafe"
+
+//sys	closedir(dir uintptr) (err error)
+//sys	readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno)
+
+func fdopendir(fd int) (dir uintptr, err error) {
+	r0, _, e1 := syscall_syscallPtr(funcPC(libc_fdopendir_trampoline), uintptr(fd), 0, 0)
+	dir = uintptr(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func libc_fdopendir_trampoline()
+
+//go:linkname libc_fdopendir libc_fdopendir
+//go:cgo_import_dynamic libc_fdopendir fdopendir "/usr/lib/libSystem.B.dylib"
+
+func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
+	// Simulate Getdirentries using fdopendir/readdir_r/closedir.
+	const ptrSize = unsafe.Sizeof(uintptr(0))
+
+	// We store the number of entries to skip in the seek
+	// offset of fd. See issue #31368.
+	// It's not the full required semantics, but should handle the case
+	// of calling Getdirentries or ReadDirent repeatedly.
+	// It won't handle assigning the results of lseek to *basep, or handle
+	// the directory being edited underfoot.
+	skip, err := Seek(fd, 0, 1 /* SEEK_CUR */)
+	if err != nil {
+		return 0, err
+	}
+
+	// We need to duplicate the incoming file descriptor
+	// because the caller expects to retain control of it, but
+	// fdopendir expects to take control of its argument.
+	// Just Dup'ing the file descriptor is not enough, as the
+	// result shares underlying state. Use Openat to make a really
+	// new file descriptor referring to the same directory.
+	fd2, err := Openat(fd, ".", O_RDONLY, 0)
+	if err != nil {
+		return 0, err
+	}
+	d, err := fdopendir(fd2)
+	if err != nil {
+		Close(fd2)
+		return 0, err
+	}
+	defer closedir(d)
+
+	var cnt int64
+	for {
+		var entry Dirent
+		var entryp *Dirent
+		e := readdir_r(d, &entry, &entryp)
+		if e != 0 {
+			return n, errnoErr(e)
+		}
+		if entryp == nil {
+			break
+		}
+		if skip > 0 {
+			skip--
+			cnt++
+			continue
+		}
+		reclen := int(entry.Reclen)
+		if reclen > len(buf) {
+			// Not enough room. Return for now.
+			// The counter will let us know where we should start up again.
+			// Note: this strategy for suspending in the middle and
+			// restarting is O(n^2) in the length of the directory. Oh well.
+			break
+		}
+		// Copy entry into return buffer.
+		s := struct {
+			ptr unsafe.Pointer
+			siz int
+			cap int
+		}{ptr: unsafe.Pointer(&entry), siz: reclen, cap: reclen}
+		copy(buf, *(*[]byte)(unsafe.Pointer(&s)))
+		buf = buf[reclen:]
+		n += reclen
+		cnt++
+	}
+	// Set the seek offset of the input fd to record
+	// how many files we've already returned.
+	_, err = Seek(fd, cnt, 0 /* SEEK_SET */)
+	if err != nil {
+		return n, err
+	}
+
+	return n, nil
+}