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vendor: Add GCP dependencies and update crypto

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Signed-off-by: Dave Tucker <dt@docker.com>
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Dave Tucker
2017-04-05 01:25:47 +01:00
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Apache License
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
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the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
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7. Disclaimer of Warranty. Unless required by applicable law or
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
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9. Accepting Warranty or Additional Liability. While redistributing
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END OF TERMS AND CONDITIONS
Copyright 2013-2017 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Docker
Copyright 2012-2017 Docker, Inc.
This product includes software developed at Docker, Inc. (https://www.docker.com).
This product contains software (https://github.com/kr/pty) developed
by Keith Rarick, licensed under the MIT License.
The following is courtesy of our legal counsel:
Use and transfer of Docker may be subject to certain restrictions by the
United States and other governments.
It is your responsibility to ensure that your use and/or transfer does not
violate applicable laws.
For more information, please see https://www.bis.doc.gov
See also https://www.apache.org/dev/crypto.html and/or seek legal counsel.

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Docker: the container engine [![Release](https://img.shields.io/github/release/docker/docker.svg)](https://github.com/docker/docker/releases/latest)
============================
Docker is an open source project to pack, ship and run any application
as a lightweight container.
Docker containers are both *hardware-agnostic* and *platform-agnostic*.
This means they can run anywhere, from your laptop to the largest
cloud compute instance and everything in between - and they don't require
you to use a particular language, framework or packaging system. That
makes them great building blocks for deploying and scaling web apps,
databases, and backend services without depending on a particular stack
or provider.
Docker began as an open-source implementation of the deployment engine which
powered [dotCloud](http://web.archive.org/web/20130530031104/https://www.dotcloud.com/),
a popular Platform-as-a-Service. It benefits directly from the experience
accumulated over several years of large-scale operation and support of hundreds
of thousands of applications and databases.
![Docker logo](docs/static_files/docker-logo-compressed.png "Docker")
## Security Disclosure
Security is very important to us. If you have any issue regarding security,
please disclose the information responsibly by sending an email to
security@docker.com and not by creating a GitHub issue.
## Better than VMs
A common method for distributing applications and sandboxing their
execution is to use virtual machines, or VMs. Typical VM formats are
VMware's vmdk, Oracle VirtualBox's vdi, and Amazon EC2's ami. In theory
these formats should allow every developer to automatically package
their application into a "machine" for easy distribution and deployment.
In practice, that almost never happens, for a few reasons:
* *Size*: VMs are very large which makes them impractical to store
and transfer.
* *Performance*: running VMs consumes significant CPU and memory,
which makes them impractical in many scenarios, for example local
development of multi-tier applications, and large-scale deployment
of cpu and memory-intensive applications on large numbers of
machines.
* *Portability*: competing VM environments don't play well with each
other. Although conversion tools do exist, they are limited and
add even more overhead.
* *Hardware-centric*: VMs were designed with machine operators in
mind, not software developers. As a result, they offer very
limited tooling for what developers need most: building, testing
and running their software. For example, VMs offer no facilities
for application versioning, monitoring, configuration, logging or
service discovery.
By contrast, Docker relies on a different sandboxing method known as
*containerization*. Unlike traditional virtualization, containerization
takes place at the kernel level. Most modern operating system kernels
now support the primitives necessary for containerization, including
Linux with [openvz](https://openvz.org),
[vserver](http://linux-vserver.org) and more recently
[lxc](https://linuxcontainers.org/), Solaris with
[zones](https://docs.oracle.com/cd/E26502_01/html/E29024/preface-1.html#scrolltoc),
and FreeBSD with
[Jails](https://www.freebsd.org/doc/handbook/jails.html).
Docker builds on top of these low-level primitives to offer developers a
portable format and runtime environment that solves all four problems.
Docker containers are small (and their transfer can be optimized with
layers), they have basically zero memory and cpu overhead, they are
completely portable, and are designed from the ground up with an
application-centric design.
Perhaps best of all, because Docker operates at the OS level, it can still be
run inside a VM!
## Plays well with others
Docker does not require you to buy into a particular programming
language, framework, packaging system, or configuration language.
Is your application a Unix process? Does it use files, tcp connections,
environment variables, standard Unix streams and command-line arguments
as inputs and outputs? Then Docker can run it.
Can your application's build be expressed as a sequence of such
commands? Then Docker can build it.
## Escape dependency hell
A common problem for developers is the difficulty of managing all
their application's dependencies in a simple and automated way.
This is usually difficult for several reasons:
* *Cross-platform dependencies*. Modern applications often depend on
a combination of system libraries and binaries, language-specific
packages, framework-specific modules, internal components
developed for another project, etc. These dependencies live in
different "worlds" and require different tools - these tools
typically don't work well with each other, requiring awkward
custom integrations.
* *Conflicting dependencies*. Different applications may depend on
different versions of the same dependency. Packaging tools handle
these situations with various degrees of ease - but they all
handle them in different and incompatible ways, which again forces
the developer to do extra work.
* *Custom dependencies*. A developer may need to prepare a custom
version of their application's dependency. Some packaging systems
can handle custom versions of a dependency, others can't - and all
of them handle it differently.
Docker solves the problem of dependency hell by giving developers a simple
way to express *all* their application's dependencies in one place, while
streamlining the process of assembling them. If this makes you think of
[XKCD 927](https://xkcd.com/927/), don't worry. Docker doesn't
*replace* your favorite packaging systems. It simply orchestrates
their use in a simple and repeatable way. How does it do that? With
layers.
Docker defines a build as running a sequence of Unix commands, one
after the other, in the same container. Build commands modify the
contents of the container (usually by installing new files on the
filesystem), the next command modifies it some more, etc. Since each
build command inherits the result of the previous commands, the
*order* in which the commands are executed expresses *dependencies*.
Here's a typical Docker build process:
```bash
FROM ubuntu:12.04
RUN apt-get update && apt-get install -y python python-pip curl
RUN curl -sSL https://github.com/shykes/helloflask/archive/master.tar.gz | tar -xzv
RUN cd helloflask-master && pip install -r requirements.txt
```
Note that Docker doesn't care *how* dependencies are built - as long
as they can be built by running a Unix command in a container.
Getting started
===============
Docker can be installed either on your computer for building applications or
on servers for running them. To get started, [check out the installation
instructions in the
documentation](https://docs.docker.com/engine/installation/).
Usage examples
==============
Docker can be used to run short-lived commands, long-running daemons
(app servers, databases, etc.), interactive shell sessions, etc.
You can find a [list of real-world
examples](https://docs.docker.com/engine/examples/) in the
documentation.
Under the hood
--------------
Under the hood, Docker is built on the following components:
* The
[cgroups](https://www.kernel.org/doc/Documentation/cgroup-v1/cgroups.txt)
and
[namespaces](http://man7.org/linux/man-pages/man7/namespaces.7.html)
capabilities of the Linux kernel
* The [Go](https://golang.org) programming language
* The [Docker Image Specification](https://github.com/docker/docker/blob/master/image/spec/v1.md)
* The [Libcontainer Specification](https://github.com/opencontainers/runc/blob/master/libcontainer/SPEC.md)
Contributing to Docker [![GoDoc](https://godoc.org/github.com/docker/docker?status.svg)](https://godoc.org/github.com/docker/docker)
======================
| **Master** (Linux) | **Experimental** (Linux) | **Windows** | **FreeBSD** |
|------------------|----------------------|---------|---------|
| [![Jenkins Build Status](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master/badge/icon)](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master/) | [![Jenkins Build Status](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master%20%28experimental%29/badge/icon)](https://jenkins.dockerproject.org/view/Docker/job/Docker%20Master%20%28experimental%29/) | [![Build Status](http://jenkins.dockerproject.org/job/Docker%20Master%20(windows)/badge/icon)](http://jenkins.dockerproject.org/job/Docker%20Master%20(windows)/) | [![Build Status](http://jenkins.dockerproject.org/job/Docker%20Master%20(freebsd)/badge/icon)](http://jenkins.dockerproject.org/job/Docker%20Master%20(freebsd)/) |
Want to hack on Docker? Awesome! We have [instructions to help you get
started contributing code or documentation](https://docs.docker.com/opensource/project/who-written-for/).
These instructions are probably not perfect, please let us know if anything
feels wrong or incomplete. Better yet, submit a PR and improve them yourself.
Getting the development builds
==============================
Want to run Docker from a master build? You can download
master builds at [master.dockerproject.org](https://master.dockerproject.org).
They are updated with each commit merged into the master branch.
Don't know how to use that super cool new feature in the master build? Check
out the master docs at
[docs.master.dockerproject.org](http://docs.master.dockerproject.org).
How the project is run
======================
Docker is a very, very active project. If you want to learn more about how it is run,
or want to get more involved, the best place to start is [the project directory](https://github.com/docker/docker/tree/master/project).
We are always open to suggestions on process improvements, and are always looking for more maintainers.
### Talking to other Docker users and contributors
<table class="tg">
<col width="45%">
<col width="65%">
<tr>
<td>Internet&nbsp;Relay&nbsp;Chat&nbsp;(IRC)</td>
<td>
<p>
IRC is a direct line to our most knowledgeable Docker users; we have
both the <code>#docker</code> and <code>#docker-dev</code> group on
<strong>irc.freenode.net</strong>.
IRC is a rich chat protocol but it can overwhelm new users. You can search
<a href="https://botbot.me/freenode/docker/#" target="_blank">our chat archives</a>.
</p>
Read our <a href="https://docs.docker.com/opensource/get-help/#/irc-quickstart" target="_blank">IRC quickstart guide</a> for an easy way to get started.
</td>
</tr>
<tr>
<td>Docker Community Forums</td>
<td>
The <a href="https://forums.docker.com/c/open-source-projects/de" target="_blank">Docker Engine</a>
group is for users of the Docker Engine project.
</td>
</tr>
<tr>
<td>Google Groups</td>
<td>
The <a href="https://groups.google.com/forum/#!forum/docker-dev"
target="_blank">docker-dev</a> group is for contributors and other people
contributing to the Docker project. You can join this group without a
Google account by sending an email to <a
href="mailto:docker-dev+subscribe@googlegroups.com">docker-dev+subscribe@googlegroups.com</a>.
You'll receive a join-request message; simply reply to the message to
confirm your subscription.
</td>
</tr>
<tr>
<td>Twitter</td>
<td>
You can follow <a href="https://twitter.com/docker/" target="_blank">Docker's Twitter feed</a>
to get updates on our products. You can also tweet us questions or just
share blogs or stories.
</td>
</tr>
<tr>
<td>Stack Overflow</td>
<td>
Stack Overflow has over 7000 Docker questions listed. We regularly
monitor <a href="https://stackoverflow.com/search?tab=newest&q=docker" target="_blank">Docker questions</a>
and so do many other knowledgeable Docker users.
</td>
</tr>
</table>
### Legal
*Brought to you courtesy of our legal counsel. For more context,
please see the [NOTICE](https://github.com/docker/docker/blob/master/NOTICE) document in this repo.*
Use and transfer of Docker may be subject to certain restrictions by the
United States and other governments.
It is your responsibility to ensure that your use and/or transfer does not
violate applicable laws.
For more information, please see https://www.bis.doc.gov
Licensing
=========
Docker is licensed under the Apache License, Version 2.0. See
[LICENSE](https://github.com/docker/docker/blob/master/LICENSE) for the full
license text.
Other Docker Related Projects
=============================
There are a number of projects under development that are based on Docker's
core technology. These projects expand the tooling built around the
Docker platform to broaden its application and utility.
* [Docker Registry](https://github.com/docker/distribution): Registry
server for Docker (hosting/delivery of repositories and images)
* [Docker Machine](https://github.com/docker/machine): Machine management
for a container-centric world
* [Docker Swarm](https://github.com/docker/swarm): A Docker-native clustering
system
* [Docker Compose](https://github.com/docker/compose) (formerly Fig):
Define and run multi-container apps
* [Kitematic](https://github.com/docker/kitematic): The easiest way to use
Docker on Mac and Windows
If you know of another project underway that should be listed here, please help
us keep this list up-to-date by submitting a PR.
Awesome-Docker
==============
You can find more projects, tools and articles related to Docker on the [awesome-docker list](https://github.com/veggiemonk/awesome-docker). Add your project there.

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pkg/ is a collection of utility packages used by the Docker project without being specific to its internals.
Utility packages are kept separate from the docker core codebase to keep it as small and concise as possible.
If some utilities grow larger and their APIs stabilize, they may be moved to their own repository under the
Docker organization, to facilitate re-use by other projects. However that is not the priority.
The directory `pkg` is named after the same directory in the camlistore project. Since Brad is a core
Go maintainer, we thought it made sense to copy his methods for organizing Go code :) Thanks Brad!
Because utility packages are small and neatly separated from the rest of the codebase, they are a good
place to start for aspiring maintainers and contributors. Get in touch if you want to help maintain them!

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package term
import (
"fmt"
"strings"
)
// ASCII list the possible supported ASCII key sequence
var ASCII = []string{
"ctrl-@",
"ctrl-a",
"ctrl-b",
"ctrl-c",
"ctrl-d",
"ctrl-e",
"ctrl-f",
"ctrl-g",
"ctrl-h",
"ctrl-i",
"ctrl-j",
"ctrl-k",
"ctrl-l",
"ctrl-m",
"ctrl-n",
"ctrl-o",
"ctrl-p",
"ctrl-q",
"ctrl-r",
"ctrl-s",
"ctrl-t",
"ctrl-u",
"ctrl-v",
"ctrl-w",
"ctrl-x",
"ctrl-y",
"ctrl-z",
"ctrl-[",
"ctrl-\\",
"ctrl-]",
"ctrl-^",
"ctrl-_",
}
// ToBytes converts a string representing a suite of key-sequence to the corresponding ASCII code.
func ToBytes(keys string) ([]byte, error) {
codes := []byte{}
next:
for _, key := range strings.Split(keys, ",") {
if len(key) != 1 {
for code, ctrl := range ASCII {
if ctrl == key {
codes = append(codes, byte(code))
continue next
}
}
if key == "DEL" {
codes = append(codes, 127)
} else {
return nil, fmt.Errorf("Unknown character: '%s'", key)
}
} else {
codes = append(codes, byte(key[0]))
}
}
return codes, nil
}

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// +build linux,cgo
package term
import (
"syscall"
"unsafe"
)
// #include <termios.h>
import "C"
// Termios is the Unix API for terminal I/O.
// It is passthrough for syscall.Termios in order to make it portable with
// other platforms where it is not available or handled differently.
type Termios syscall.Termios
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if err := tcget(fd, &oldState.termios); err != 0 {
return nil, err
}
newState := oldState.termios
C.cfmakeraw((*C.struct_termios)(unsafe.Pointer(&newState)))
if err := tcset(fd, &newState); err != 0 {
return nil, err
}
return &oldState, nil
}
func tcget(fd uintptr, p *Termios) syscall.Errno {
ret, err := C.tcgetattr(C.int(fd), (*C.struct_termios)(unsafe.Pointer(p)))
if ret != 0 {
return err.(syscall.Errno)
}
return 0
}
func tcset(fd uintptr, p *Termios) syscall.Errno {
ret, err := C.tcsetattr(C.int(fd), C.TCSANOW, (*C.struct_termios)(unsafe.Pointer(p)))
if ret != 0 {
return err.(syscall.Errno)
}
return 0
}

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// +build !windows
// +build !linux !cgo
// +build !solaris !cgo
package term
import (
"syscall"
"unsafe"
)
func tcget(fd uintptr, p *Termios) syscall.Errno {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(getTermios), uintptr(unsafe.Pointer(p)))
return err
}
func tcset(fd uintptr, p *Termios) syscall.Errno {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(p)))
return err
}

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// +build solaris,cgo
package term
import (
"syscall"
"unsafe"
)
// #include <termios.h>
import "C"
// Termios is the Unix API for terminal I/O.
// It is passthrough for syscall.Termios in order to make it portable with
// other platforms where it is not available or handled differently.
type Termios syscall.Termios
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if err := tcget(fd, &oldState.termios); err != 0 {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= (syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK | syscall.ISTRIP | syscall.INLCR | syscall.IGNCR | syscall.ICRNL | syscall.IXON | syscall.IXANY)
newState.Oflag &^= syscall.OPOST
newState.Lflag &^= (syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG | syscall.IEXTEN)
newState.Cflag &^= (syscall.CSIZE | syscall.PARENB)
newState.Cflag |= syscall.CS8
/*
VMIN is the minimum number of characters that needs to be read in non-canonical mode for it to be returned
Since VMIN is overloaded with another element in canonical mode when we switch modes it defaults to 4. It
needs to be explicitly set to 1.
*/
newState.Cc[C.VMIN] = 1
newState.Cc[C.VTIME] = 0
if err := tcset(fd, &newState); err != 0 {
return nil, err
}
return &oldState, nil
}
func tcget(fd uintptr, p *Termios) syscall.Errno {
ret, err := C.tcgetattr(C.int(fd), (*C.struct_termios)(unsafe.Pointer(p)))
if ret != 0 {
return err.(syscall.Errno)
}
return 0
}
func tcset(fd uintptr, p *Termios) syscall.Errno {
ret, err := C.tcsetattr(C.int(fd), C.TCSANOW, (*C.struct_termios)(unsafe.Pointer(p)))
if ret != 0 {
return err.(syscall.Errno)
}
return 0
}

123
vendor/github.com/docker/docker/pkg/term/term.go generated vendored Normal file
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@@ -0,0 +1,123 @@
// +build !windows
// Package term provides structures and helper functions to work with
// terminal (state, sizes).
package term
import (
"errors"
"fmt"
"io"
"os"
"os/signal"
"syscall"
)
var (
// ErrInvalidState is returned if the state of the terminal is invalid.
ErrInvalidState = errors.New("Invalid terminal state")
)
// State represents the state of the terminal.
type State struct {
termios Termios
}
// Winsize represents the size of the terminal window.
type Winsize struct {
Height uint16
Width uint16
x uint16
y uint16
}
// StdStreams returns the standard streams (stdin, stdout, stderr).
func StdStreams() (stdIn io.ReadCloser, stdOut, stdErr io.Writer) {
return os.Stdin, os.Stdout, os.Stderr
}
// GetFdInfo returns the file descriptor for an os.File and indicates whether the file represents a terminal.
func GetFdInfo(in interface{}) (uintptr, bool) {
var inFd uintptr
var isTerminalIn bool
if file, ok := in.(*os.File); ok {
inFd = file.Fd()
isTerminalIn = IsTerminal(inFd)
}
return inFd, isTerminalIn
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd uintptr) bool {
var termios Termios
return tcget(fd, &termios) == 0
}
// RestoreTerminal restores the terminal connected to the given file descriptor
// to a previous state.
func RestoreTerminal(fd uintptr, state *State) error {
if state == nil {
return ErrInvalidState
}
if err := tcset(fd, &state.termios); err != 0 {
return err
}
return nil
}
// SaveState saves the state of the terminal connected to the given file descriptor.
func SaveState(fd uintptr) (*State, error) {
var oldState State
if err := tcget(fd, &oldState.termios); err != 0 {
return nil, err
}
return &oldState, nil
}
// DisableEcho applies the specified state to the terminal connected to the file
// descriptor, with echo disabled.
func DisableEcho(fd uintptr, state *State) error {
newState := state.termios
newState.Lflag &^= syscall.ECHO
if err := tcset(fd, &newState); err != 0 {
return err
}
handleInterrupt(fd, state)
return nil
}
// SetRawTerminal puts the terminal connected to the given file descriptor into
// raw mode and returns the previous state. On UNIX, this puts both the input
// and output into raw mode. On Windows, it only puts the input into raw mode.
func SetRawTerminal(fd uintptr) (*State, error) {
oldState, err := MakeRaw(fd)
if err != nil {
return nil, err
}
handleInterrupt(fd, oldState)
return oldState, err
}
// SetRawTerminalOutput puts the output of terminal connected to the given file
// descriptor into raw mode. On UNIX, this does nothing and returns nil for the
// state. On Windows, it disables LF -> CRLF translation.
func SetRawTerminalOutput(fd uintptr) (*State, error) {
return nil, nil
}
func handleInterrupt(fd uintptr, state *State) {
sigchan := make(chan os.Signal, 1)
signal.Notify(sigchan, os.Interrupt)
go func() {
for range sigchan {
// quit cleanly and the new terminal item is on a new line
fmt.Println()
signal.Stop(sigchan)
close(sigchan)
RestoreTerminal(fd, state)
os.Exit(1)
}
}()
}

41
vendor/github.com/docker/docker/pkg/term/term_solaris.go generated vendored Normal file
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@@ -0,0 +1,41 @@
// +build solaris
package term
import (
"syscall"
"unsafe"
)
/*
#include <unistd.h>
#include <stropts.h>
#include <termios.h>
// Small wrapper to get rid of variadic args of ioctl()
int my_ioctl(int fd, int cmd, struct winsize *ws) {
return ioctl(fd, cmd, ws);
}
*/
import "C"
// GetWinsize returns the window size based on the specified file descriptor.
func GetWinsize(fd uintptr) (*Winsize, error) {
ws := &Winsize{}
ret, err := C.my_ioctl(C.int(fd), C.int(syscall.TIOCGWINSZ), (*C.struct_winsize)(unsafe.Pointer(ws)))
// Skip retval = 0
if ret == 0 {
return ws, nil
}
return ws, err
}
// SetWinsize tries to set the specified window size for the specified file descriptor.
func SetWinsize(fd uintptr, ws *Winsize) error {
ret, err := C.my_ioctl(C.int(fd), C.int(syscall.TIOCSWINSZ), (*C.struct_winsize)(unsafe.Pointer(ws)))
// Skip retval = 0
if ret == 0 {
return nil
}
return err
}

29
vendor/github.com/docker/docker/pkg/term/term_unix.go generated vendored Normal file
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@@ -0,0 +1,29 @@
// +build !solaris,!windows
package term
import (
"syscall"
"unsafe"
)
// GetWinsize returns the window size based on the specified file descriptor.
func GetWinsize(fd uintptr) (*Winsize, error) {
ws := &Winsize{}
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(ws)))
// Skipp errno = 0
if err == 0 {
return ws, nil
}
return ws, err
}
// SetWinsize tries to set the specified window size for the specified file descriptor.
func SetWinsize(fd uintptr, ws *Winsize) error {
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(syscall.TIOCSWINSZ), uintptr(unsafe.Pointer(ws)))
// Skipp errno = 0
if err == 0 {
return nil
}
return err
}

233
vendor/github.com/docker/docker/pkg/term/term_windows.go generated vendored Normal file
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@@ -0,0 +1,233 @@
// +build windows
package term
import (
"io"
"os"
"os/signal"
"syscall"
"github.com/Azure/go-ansiterm/winterm"
"github.com/docker/docker/pkg/term/windows"
)
// State holds the console mode for the terminal.
type State struct {
mode uint32
}
// Winsize is used for window size.
type Winsize struct {
Height uint16
Width uint16
}
const (
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms683167(v=vs.85).aspx
enableVirtualTerminalInput = 0x0200
enableVirtualTerminalProcessing = 0x0004
disableNewlineAutoReturn = 0x0008
)
// vtInputSupported is true if enableVirtualTerminalInput is supported by the console
var vtInputSupported bool
// StdStreams returns the standard streams (stdin, stdout, stderr).
func StdStreams() (stdIn io.ReadCloser, stdOut, stdErr io.Writer) {
// Turn on VT handling on all std handles, if possible. This might
// fail, in which case we will fall back to terminal emulation.
var emulateStdin, emulateStdout, emulateStderr bool
fd := os.Stdin.Fd()
if mode, err := winterm.GetConsoleMode(fd); err == nil {
// Validate that enableVirtualTerminalInput is supported, but do not set it.
if err = winterm.SetConsoleMode(fd, mode|enableVirtualTerminalInput); err != nil {
emulateStdin = true
} else {
vtInputSupported = true
}
// Unconditionally set the console mode back even on failure because SetConsoleMode
// remembers invalid bits on input handles.
winterm.SetConsoleMode(fd, mode)
}
fd = os.Stdout.Fd()
if mode, err := winterm.GetConsoleMode(fd); err == nil {
// Validate disableNewlineAutoReturn is supported, but do not set it.
if err = winterm.SetConsoleMode(fd, mode|enableVirtualTerminalProcessing|disableNewlineAutoReturn); err != nil {
emulateStdout = true
} else {
winterm.SetConsoleMode(fd, mode|enableVirtualTerminalProcessing)
}
}
fd = os.Stderr.Fd()
if mode, err := winterm.GetConsoleMode(fd); err == nil {
// Validate disableNewlineAutoReturn is supported, but do not set it.
if err = winterm.SetConsoleMode(fd, mode|enableVirtualTerminalProcessing|disableNewlineAutoReturn); err != nil {
emulateStderr = true
} else {
winterm.SetConsoleMode(fd, mode|enableVirtualTerminalProcessing)
}
}
if os.Getenv("ConEmuANSI") == "ON" || os.Getenv("ConsoleZVersion") != "" {
// The ConEmu and ConsoleZ terminals emulate ANSI on output streams well.
emulateStdin = true
emulateStdout = false
emulateStderr = false
}
if emulateStdin {
stdIn = windows.NewAnsiReader(syscall.STD_INPUT_HANDLE)
} else {
stdIn = os.Stdin
}
if emulateStdout {
stdOut = windows.NewAnsiWriter(syscall.STD_OUTPUT_HANDLE)
} else {
stdOut = os.Stdout
}
if emulateStderr {
stdErr = windows.NewAnsiWriter(syscall.STD_ERROR_HANDLE)
} else {
stdErr = os.Stderr
}
return
}
// GetFdInfo returns the file descriptor for an os.File and indicates whether the file represents a terminal.
func GetFdInfo(in interface{}) (uintptr, bool) {
return windows.GetHandleInfo(in)
}
// GetWinsize returns the window size based on the specified file descriptor.
func GetWinsize(fd uintptr) (*Winsize, error) {
info, err := winterm.GetConsoleScreenBufferInfo(fd)
if err != nil {
return nil, err
}
winsize := &Winsize{
Width: uint16(info.Window.Right - info.Window.Left + 1),
Height: uint16(info.Window.Bottom - info.Window.Top + 1),
}
return winsize, nil
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd uintptr) bool {
return windows.IsConsole(fd)
}
// RestoreTerminal restores the terminal connected to the given file descriptor
// to a previous state.
func RestoreTerminal(fd uintptr, state *State) error {
return winterm.SetConsoleMode(fd, state.mode)
}
// SaveState saves the state of the terminal connected to the given file descriptor.
func SaveState(fd uintptr) (*State, error) {
mode, e := winterm.GetConsoleMode(fd)
if e != nil {
return nil, e
}
return &State{mode: mode}, nil
}
// DisableEcho disables echo for the terminal connected to the given file descriptor.
// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683462(v=vs.85).aspx
func DisableEcho(fd uintptr, state *State) error {
mode := state.mode
mode &^= winterm.ENABLE_ECHO_INPUT
mode |= winterm.ENABLE_PROCESSED_INPUT | winterm.ENABLE_LINE_INPUT
err := winterm.SetConsoleMode(fd, mode)
if err != nil {
return err
}
// Register an interrupt handler to catch and restore prior state
restoreAtInterrupt(fd, state)
return nil
}
// SetRawTerminal puts the terminal connected to the given file descriptor into
// raw mode and returns the previous state. On UNIX, this puts both the input
// and output into raw mode. On Windows, it only puts the input into raw mode.
func SetRawTerminal(fd uintptr) (*State, error) {
state, err := MakeRaw(fd)
if err != nil {
return nil, err
}
// Register an interrupt handler to catch and restore prior state
restoreAtInterrupt(fd, state)
return state, err
}
// SetRawTerminalOutput puts the output of terminal connected to the given file
// descriptor into raw mode. On UNIX, this does nothing and returns nil for the
// state. On Windows, it disables LF -> CRLF translation.
func SetRawTerminalOutput(fd uintptr) (*State, error) {
state, err := SaveState(fd)
if err != nil {
return nil, err
}
// Ignore failures, since disableNewlineAutoReturn might not be supported on this
// version of Windows.
winterm.SetConsoleMode(fd, state.mode|disableNewlineAutoReturn)
return state, err
}
// MakeRaw puts the terminal (Windows Console) connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be restored.
func MakeRaw(fd uintptr) (*State, error) {
state, err := SaveState(fd)
if err != nil {
return nil, err
}
mode := state.mode
// See
// -- https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx
// -- https://msdn.microsoft.com/en-us/library/windows/desktop/ms683462(v=vs.85).aspx
// Disable these modes
mode &^= winterm.ENABLE_ECHO_INPUT
mode &^= winterm.ENABLE_LINE_INPUT
mode &^= winterm.ENABLE_MOUSE_INPUT
mode &^= winterm.ENABLE_WINDOW_INPUT
mode &^= winterm.ENABLE_PROCESSED_INPUT
// Enable these modes
mode |= winterm.ENABLE_EXTENDED_FLAGS
mode |= winterm.ENABLE_INSERT_MODE
mode |= winterm.ENABLE_QUICK_EDIT_MODE
if vtInputSupported {
mode |= enableVirtualTerminalInput
}
err = winterm.SetConsoleMode(fd, mode)
if err != nil {
return nil, err
}
return state, nil
}
func restoreAtInterrupt(fd uintptr, state *State) {
sigchan := make(chan os.Signal, 1)
signal.Notify(sigchan, os.Interrupt)
go func() {
_ = <-sigchan
RestoreTerminal(fd, state)
os.Exit(0)
}()
}

69
vendor/github.com/docker/docker/pkg/term/termios_darwin.go generated vendored Normal file
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@@ -0,0 +1,69 @@
package term
import (
"syscall"
"unsafe"
)
const (
getTermios = syscall.TIOCGETA
setTermios = syscall.TIOCSETA
)
// Termios magic numbers, passthrough to the ones defined in syscall.
const (
IGNBRK = syscall.IGNBRK
PARMRK = syscall.PARMRK
INLCR = syscall.INLCR
IGNCR = syscall.IGNCR
ECHONL = syscall.ECHONL
CSIZE = syscall.CSIZE
ICRNL = syscall.ICRNL
ISTRIP = syscall.ISTRIP
PARENB = syscall.PARENB
ECHO = syscall.ECHO
ICANON = syscall.ICANON
ISIG = syscall.ISIG
IXON = syscall.IXON
BRKINT = syscall.BRKINT
INPCK = syscall.INPCK
OPOST = syscall.OPOST
CS8 = syscall.CS8
IEXTEN = syscall.IEXTEN
)
// Termios is the Unix API for terminal I/O.
type Termios struct {
Iflag uint64
Oflag uint64
Cflag uint64
Lflag uint64
Cc [20]byte
Ispeed uint64
Ospeed uint64
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(getTermios), uintptr(unsafe.Pointer(&oldState.termios))); err != 0 {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON)
newState.Oflag &^= OPOST
newState.Lflag &^= (ECHO | ECHONL | ICANON | ISIG | IEXTEN)
newState.Cflag &^= (CSIZE | PARENB)
newState.Cflag |= CS8
newState.Cc[syscall.VMIN] = 1
newState.Cc[syscall.VTIME] = 0
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(setTermios), uintptr(unsafe.Pointer(&newState))); err != 0 {
return nil, err
}
return &oldState, nil
}

69
vendor/github.com/docker/docker/pkg/term/termios_freebsd.go generated vendored Normal file
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@@ -0,0 +1,69 @@
package term
import (
"syscall"
"unsafe"
)
const (
getTermios = syscall.TIOCGETA
setTermios = syscall.TIOCSETA
)
// Termios magic numbers, passthrough to the ones defined in syscall.
const (
IGNBRK = syscall.IGNBRK
PARMRK = syscall.PARMRK
INLCR = syscall.INLCR
IGNCR = syscall.IGNCR
ECHONL = syscall.ECHONL
CSIZE = syscall.CSIZE
ICRNL = syscall.ICRNL
ISTRIP = syscall.ISTRIP
PARENB = syscall.PARENB
ECHO = syscall.ECHO
ICANON = syscall.ICANON
ISIG = syscall.ISIG
IXON = syscall.IXON
BRKINT = syscall.BRKINT
INPCK = syscall.INPCK
OPOST = syscall.OPOST
CS8 = syscall.CS8
IEXTEN = syscall.IEXTEN
)
// Termios is the Unix API for terminal I/O.
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]byte
Ispeed uint32
Ospeed uint32
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(getTermios), uintptr(unsafe.Pointer(&oldState.termios))); err != 0 {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON)
newState.Oflag &^= OPOST
newState.Lflag &^= (ECHO | ECHONL | ICANON | ISIG | IEXTEN)
newState.Cflag &^= (CSIZE | PARENB)
newState.Cflag |= CS8
newState.Cc[syscall.VMIN] = 1
newState.Cc[syscall.VTIME] = 0
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(setTermios), uintptr(unsafe.Pointer(&newState))); err != 0 {
return nil, err
}
return &oldState, nil
}

47
vendor/github.com/docker/docker/pkg/term/termios_linux.go generated vendored Normal file
View File

@@ -0,0 +1,47 @@
// +build !cgo
package term
import (
"syscall"
"unsafe"
)
const (
getTermios = syscall.TCGETS
setTermios = syscall.TCSETS
)
// Termios is the Unix API for terminal I/O.
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]byte
Ispeed uint32
Ospeed uint32
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, getTermios, uintptr(unsafe.Pointer(&oldState.termios))); err != 0 {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= (syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK | syscall.ISTRIP | syscall.INLCR | syscall.IGNCR | syscall.ICRNL | syscall.IXON)
newState.Oflag &^= syscall.OPOST
newState.Lflag &^= (syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG | syscall.IEXTEN)
newState.Cflag &^= (syscall.CSIZE | syscall.PARENB)
newState.Cflag |= syscall.CS8
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, setTermios, uintptr(unsafe.Pointer(&newState))); err != 0 {
return nil, err
}
return &oldState, nil
}

69
vendor/github.com/docker/docker/pkg/term/termios_openbsd.go generated vendored Normal file
View File

@@ -0,0 +1,69 @@
package term
import (
"syscall"
"unsafe"
)
const (
getTermios = syscall.TIOCGETA
setTermios = syscall.TIOCSETA
)
// Termios magic numbers, passthrough to the ones defined in syscall.
const (
IGNBRK = syscall.IGNBRK
PARMRK = syscall.PARMRK
INLCR = syscall.INLCR
IGNCR = syscall.IGNCR
ECHONL = syscall.ECHONL
CSIZE = syscall.CSIZE
ICRNL = syscall.ICRNL
ISTRIP = syscall.ISTRIP
PARENB = syscall.PARENB
ECHO = syscall.ECHO
ICANON = syscall.ICANON
ISIG = syscall.ISIG
IXON = syscall.IXON
BRKINT = syscall.BRKINT
INPCK = syscall.INPCK
OPOST = syscall.OPOST
CS8 = syscall.CS8
IEXTEN = syscall.IEXTEN
)
// Termios is the Unix API for terminal I/O.
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]byte
Ispeed uint32
Ospeed uint32
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd uintptr) (*State, error) {
var oldState State
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(getTermios), uintptr(unsafe.Pointer(&oldState.termios))); err != 0 {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON)
newState.Oflag &^= OPOST
newState.Lflag &^= (ECHO | ECHONL | ICANON | ISIG | IEXTEN)
newState.Cflag &^= (CSIZE | PARENB)
newState.Cflag |= CS8
newState.Cc[syscall.VMIN] = 1
newState.Cc[syscall.VTIME] = 0
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(setTermios), uintptr(unsafe.Pointer(&newState))); err != 0 {
return nil, err
}
return &oldState, nil
}

263
vendor/github.com/docker/docker/pkg/term/windows/ansi_reader.go generated vendored Normal file
View File

@@ -0,0 +1,263 @@
// +build windows
package windows
import (
"bytes"
"errors"
"fmt"
"io"
"os"
"strings"
"unsafe"
ansiterm "github.com/Azure/go-ansiterm"
"github.com/Azure/go-ansiterm/winterm"
)
const (
escapeSequence = ansiterm.KEY_ESC_CSI
)
// ansiReader wraps a standard input file (e.g., os.Stdin) providing ANSI sequence translation.
type ansiReader struct {
file *os.File
fd uintptr
buffer []byte
cbBuffer int
command []byte
}
// NewAnsiReader returns an io.ReadCloser that provides VT100 terminal emulation on top of a
// Windows console input handle.
func NewAnsiReader(nFile int) io.ReadCloser {
initLogger()
file, fd := winterm.GetStdFile(nFile)
return &ansiReader{
file: file,
fd: fd,
command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH),
buffer: make([]byte, 0),
}
}
// Close closes the wrapped file.
func (ar *ansiReader) Close() (err error) {
return ar.file.Close()
}
// Fd returns the file descriptor of the wrapped file.
func (ar *ansiReader) Fd() uintptr {
return ar.fd
}
// Read reads up to len(p) bytes of translated input events into p.
func (ar *ansiReader) Read(p []byte) (int, error) {
if len(p) == 0 {
return 0, nil
}
// Previously read bytes exist, read as much as we can and return
if len(ar.buffer) > 0 {
logger.Debugf("Reading previously cached bytes")
originalLength := len(ar.buffer)
copiedLength := copy(p, ar.buffer)
if copiedLength == originalLength {
ar.buffer = make([]byte, 0, len(p))
} else {
ar.buffer = ar.buffer[copiedLength:]
}
logger.Debugf("Read from cache p[%d]: % x", copiedLength, p)
return copiedLength, nil
}
// Read and translate key events
events, err := readInputEvents(ar.fd, len(p))
if err != nil {
return 0, err
} else if len(events) == 0 {
logger.Debug("No input events detected")
return 0, nil
}
keyBytes := translateKeyEvents(events, []byte(escapeSequence))
// Save excess bytes and right-size keyBytes
if len(keyBytes) > len(p) {
logger.Debugf("Received %d keyBytes, only room for %d bytes", len(keyBytes), len(p))
ar.buffer = keyBytes[len(p):]
keyBytes = keyBytes[:len(p)]
} else if len(keyBytes) == 0 {
logger.Debug("No key bytes returned from the translator")
return 0, nil
}
copiedLength := copy(p, keyBytes)
if copiedLength != len(keyBytes) {
return 0, errors.New("unexpected copy length encountered")
}
logger.Debugf("Read p[%d]: % x", copiedLength, p)
logger.Debugf("Read keyBytes[%d]: % x", copiedLength, keyBytes)
return copiedLength, nil
}
// readInputEvents polls until at least one event is available.
func readInputEvents(fd uintptr, maxBytes int) ([]winterm.INPUT_RECORD, error) {
// Determine the maximum number of records to retrieve
// -- Cast around the type system to obtain the size of a single INPUT_RECORD.
// unsafe.Sizeof requires an expression vs. a type-reference; the casting
// tricks the type system into believing it has such an expression.
recordSize := int(unsafe.Sizeof(*((*winterm.INPUT_RECORD)(unsafe.Pointer(&maxBytes)))))
countRecords := maxBytes / recordSize
if countRecords > ansiterm.MAX_INPUT_EVENTS {
countRecords = ansiterm.MAX_INPUT_EVENTS
} else if countRecords == 0 {
countRecords = 1
}
logger.Debugf("[windows] readInputEvents: Reading %v records (buffer size %v, record size %v)", countRecords, maxBytes, recordSize)
// Wait for and read input events
events := make([]winterm.INPUT_RECORD, countRecords)
nEvents := uint32(0)
eventsExist, err := winterm.WaitForSingleObject(fd, winterm.WAIT_INFINITE)
if err != nil {
return nil, err
}
if eventsExist {
err = winterm.ReadConsoleInput(fd, events, &nEvents)
if err != nil {
return nil, err
}
}
// Return a slice restricted to the number of returned records
logger.Debugf("[windows] readInputEvents: Read %v events", nEvents)
return events[:nEvents], nil
}
// KeyEvent Translation Helpers
var arrowKeyMapPrefix = map[uint16]string{
winterm.VK_UP: "%s%sA",
winterm.VK_DOWN: "%s%sB",
winterm.VK_RIGHT: "%s%sC",
winterm.VK_LEFT: "%s%sD",
}
var keyMapPrefix = map[uint16]string{
winterm.VK_UP: "\x1B[%sA",
winterm.VK_DOWN: "\x1B[%sB",
winterm.VK_RIGHT: "\x1B[%sC",
winterm.VK_LEFT: "\x1B[%sD",
winterm.VK_HOME: "\x1B[1%s~", // showkey shows ^[[1
winterm.VK_END: "\x1B[4%s~", // showkey shows ^[[4
winterm.VK_INSERT: "\x1B[2%s~",
winterm.VK_DELETE: "\x1B[3%s~",
winterm.VK_PRIOR: "\x1B[5%s~",
winterm.VK_NEXT: "\x1B[6%s~",
winterm.VK_F1: "",
winterm.VK_F2: "",
winterm.VK_F3: "\x1B[13%s~",
winterm.VK_F4: "\x1B[14%s~",
winterm.VK_F5: "\x1B[15%s~",
winterm.VK_F6: "\x1B[17%s~",
winterm.VK_F7: "\x1B[18%s~",
winterm.VK_F8: "\x1B[19%s~",
winterm.VK_F9: "\x1B[20%s~",
winterm.VK_F10: "\x1B[21%s~",
winterm.VK_F11: "\x1B[23%s~",
winterm.VK_F12: "\x1B[24%s~",
}
// translateKeyEvents converts the input events into the appropriate ANSI string.
func translateKeyEvents(events []winterm.INPUT_RECORD, escapeSequence []byte) []byte {
var buffer bytes.Buffer
for _, event := range events {
if event.EventType == winterm.KEY_EVENT && event.KeyEvent.KeyDown != 0 {
buffer.WriteString(keyToString(&event.KeyEvent, escapeSequence))
}
}
return buffer.Bytes()
}
// keyToString maps the given input event record to the corresponding string.
func keyToString(keyEvent *winterm.KEY_EVENT_RECORD, escapeSequence []byte) string {
if keyEvent.UnicodeChar == 0 {
return formatVirtualKey(keyEvent.VirtualKeyCode, keyEvent.ControlKeyState, escapeSequence)
}
_, alt, control := getControlKeys(keyEvent.ControlKeyState)
if control {
// TODO(azlinux): Implement following control sequences
// <Ctrl>-D Signals the end of input from the keyboard; also exits current shell.
// <Ctrl>-H Deletes the first character to the left of the cursor. Also called the ERASE key.
// <Ctrl>-Q Restarts printing after it has been stopped with <Ctrl>-s.
// <Ctrl>-S Suspends printing on the screen (does not stop the program).
// <Ctrl>-U Deletes all characters on the current line. Also called the KILL key.
// <Ctrl>-E Quits current command and creates a core
}
// <Alt>+Key generates ESC N Key
if !control && alt {
return ansiterm.KEY_ESC_N + strings.ToLower(string(keyEvent.UnicodeChar))
}
return string(keyEvent.UnicodeChar)
}
// formatVirtualKey converts a virtual key (e.g., up arrow) into the appropriate ANSI string.
func formatVirtualKey(key uint16, controlState uint32, escapeSequence []byte) string {
shift, alt, control := getControlKeys(controlState)
modifier := getControlKeysModifier(shift, alt, control)
if format, ok := arrowKeyMapPrefix[key]; ok {
return fmt.Sprintf(format, escapeSequence, modifier)
}
if format, ok := keyMapPrefix[key]; ok {
return fmt.Sprintf(format, modifier)
}
return ""
}
// getControlKeys extracts the shift, alt, and ctrl key states.
func getControlKeys(controlState uint32) (shift, alt, control bool) {
shift = 0 != (controlState & winterm.SHIFT_PRESSED)
alt = 0 != (controlState & (winterm.LEFT_ALT_PRESSED | winterm.RIGHT_ALT_PRESSED))
control = 0 != (controlState & (winterm.LEFT_CTRL_PRESSED | winterm.RIGHT_CTRL_PRESSED))
return shift, alt, control
}
// getControlKeysModifier returns the ANSI modifier for the given combination of control keys.
func getControlKeysModifier(shift, alt, control bool) string {
if shift && alt && control {
return ansiterm.KEY_CONTROL_PARAM_8
}
if alt && control {
return ansiterm.KEY_CONTROL_PARAM_7
}
if shift && control {
return ansiterm.KEY_CONTROL_PARAM_6
}
if control {
return ansiterm.KEY_CONTROL_PARAM_5
}
if shift && alt {
return ansiterm.KEY_CONTROL_PARAM_4
}
if alt {
return ansiterm.KEY_CONTROL_PARAM_3
}
if shift {
return ansiterm.KEY_CONTROL_PARAM_2
}
return ""
}

64
vendor/github.com/docker/docker/pkg/term/windows/ansi_writer.go generated vendored Normal file
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@@ -0,0 +1,64 @@
// +build windows
package windows
import (
"io"
"os"
ansiterm "github.com/Azure/go-ansiterm"
"github.com/Azure/go-ansiterm/winterm"
)
// ansiWriter wraps a standard output file (e.g., os.Stdout) providing ANSI sequence translation.
type ansiWriter struct {
file *os.File
fd uintptr
infoReset *winterm.CONSOLE_SCREEN_BUFFER_INFO
command []byte
escapeSequence []byte
inAnsiSequence bool
parser *ansiterm.AnsiParser
}
// NewAnsiWriter returns an io.Writer that provides VT100 terminal emulation on top of a
// Windows console output handle.
func NewAnsiWriter(nFile int) io.Writer {
initLogger()
file, fd := winterm.GetStdFile(nFile)
info, err := winterm.GetConsoleScreenBufferInfo(fd)
if err != nil {
return nil
}
parser := ansiterm.CreateParser("Ground", winterm.CreateWinEventHandler(fd, file))
logger.Infof("newAnsiWriter: parser %p", parser)
aw := &ansiWriter{
file: file,
fd: fd,
infoReset: info,
command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH),
escapeSequence: []byte(ansiterm.KEY_ESC_CSI),
parser: parser,
}
logger.Infof("newAnsiWriter: aw.parser %p", aw.parser)
logger.Infof("newAnsiWriter: %v", aw)
return aw
}
func (aw *ansiWriter) Fd() uintptr {
return aw.fd
}
// Write writes len(p) bytes from p to the underlying data stream.
func (aw *ansiWriter) Write(p []byte) (total int, err error) {
if len(p) == 0 {
return 0, nil
}
logger.Infof("Write: % x", p)
logger.Infof("Write: %s", string(p))
return aw.parser.Parse(p)
}

35
vendor/github.com/docker/docker/pkg/term/windows/console.go generated vendored Normal file
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@@ -0,0 +1,35 @@
// +build windows
package windows
import (
"os"
"github.com/Azure/go-ansiterm/winterm"
)
// GetHandleInfo returns file descriptor and bool indicating whether the file is a console.
func GetHandleInfo(in interface{}) (uintptr, bool) {
switch t := in.(type) {
case *ansiReader:
return t.Fd(), true
case *ansiWriter:
return t.Fd(), true
}
var inFd uintptr
var isTerminal bool
if file, ok := in.(*os.File); ok {
inFd = file.Fd()
isTerminal = IsConsole(inFd)
}
return inFd, isTerminal
}
// IsConsole returns true if the given file descriptor is a Windows Console.
// The code assumes that GetConsoleMode will return an error for file descriptors that are not a console.
func IsConsole(fd uintptr) bool {
_, e := winterm.GetConsoleMode(fd)
return e == nil
}

33
vendor/github.com/docker/docker/pkg/term/windows/windows.go generated vendored Normal file
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@@ -0,0 +1,33 @@
// These files implement ANSI-aware input and output streams for use by the Docker Windows client.
// When asked for the set of standard streams (e.g., stdin, stdout, stderr), the code will create
// and return pseudo-streams that convert ANSI sequences to / from Windows Console API calls.
package windows
import (
"io/ioutil"
"os"
"sync"
ansiterm "github.com/Azure/go-ansiterm"
"github.com/Sirupsen/logrus"
)
var logger *logrus.Logger
var initOnce sync.Once
func initLogger() {
initOnce.Do(func() {
logFile := ioutil.Discard
if isDebugEnv := os.Getenv(ansiterm.LogEnv); isDebugEnv == "1" {
logFile, _ = os.Create("ansiReaderWriter.log")
}
logger = &logrus.Logger{
Out: logFile,
Formatter: new(logrus.TextFormatter),
Level: logrus.DebugLevel,
}
})
}