Merge pull request #2674 from thaJeztah/19.03_backport_bump_golang_1.13.15

[19.03 backport] Bump Golang 1.13.15

.circleci/config.yml

@@ -4,13 +4,13 @@ jobs:
 
   lint:
     working_directory: /work
-    docker: [{image: 'docker:18.09-git'}]
+    docker: [{image: 'docker:19.03-git'}]
     environment:
       DOCKER_BUILDKIT: 1
     steps:
       - checkout
       - setup_remote_docker:
-          version: 18.09.3
+          version: 19.03.8
           reusable: true
           exclusive: false
       - run:
@@ -39,14 +39,14 @@ jobs:
 
   cross:
     working_directory: /work
-    docker: [{image: 'docker:18.09-git'}]
+    docker: [{image: 'docker:19.03-git'}]
     environment:
       DOCKER_BUILDKIT: 1
     parallelism: 3
     steps:
       - checkout
       - setup_remote_docker:
-          version: 18.09.3
+          version: 19.03.8
           reusable: true
           exclusive: false
       - run:
@@ -75,13 +75,13 @@ jobs:
 
   test:
     working_directory: /work
-    docker: [{image: 'docker:18.09-git'}]
+    docker: [{image: 'docker:19.03-git'}]
     environment:
       DOCKER_BUILDKIT: 1
     steps:
       - checkout
       - setup_remote_docker:
-          version: 18.09.3
+          version: 19.03.8
           reusable: true
           exclusive: false
       - run:
@@ -122,13 +122,13 @@ jobs:
 
   validate:
     working_directory: /work
-    docker: [{image: 'docker:18.09-git'}]
+    docker: [{image: 'docker:19.03-git'}]
     environment:
       DOCKER_BUILDKIT: 1
     steps:
       - checkout
       - setup_remote_docker:
-          version: 18.09.3
+          version: 19.03.8
           reusable: true
           exclusive: false
       - run:

appveyor.yml

@@ -4,7 +4,7 @@ clone_folder: c:\gopath\src\github.com\docker\cli
 
 environment:
   GOPATH: c:\gopath
-  GOVERSION: 1.13.11
+  GOVERSION: 1.13.15
   DEPVERSION: v0.4.1
 
 install:

cli/command/config/ls.go

@@ -9,8 +9,8 @@ import (
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
 	"github.com/docker/docker/api/types"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 // ListOptions contains options for the docker config ls command.

cli/command/container/run.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"os"
 	"runtime"
 	"strings"
 	"syscall"
@@ -280,9 +279,9 @@ func attachContainer(
 func reportError(stderr io.Writer, name string, str string, withHelp bool) {
 	str = strings.TrimSuffix(str, ".") + "."
 	if withHelp {
-		str += "\nSee '" + os.Args[0] + " " + name + " --help'."
+		str += "\nSee 'docker " + name + " --help'."
 	}
-	fmt.Fprintf(stderr, "%s: %s\n", os.Args[0], str)
+	fmt.Fprintln(stderr, "docker:", str)
 }
 
 // if container start fails with 'not found'/'no such' error, return 127

cli/command/context.go

@@ -1,6 +1,7 @@
 package command
 
 import (
+	"encoding/json"
 	"errors"
 
 	"github.com/docker/cli/cli/context/store"
@@ -8,8 +9,48 @@ import (
 
 // DockerContext is a typed representation of what we put in Context metadata
 type DockerContext struct {
-	Description       string       `json:",omitempty"`
-	StackOrchestrator Orchestrator `json:",omitempty"`
+	Description       string
+	StackOrchestrator Orchestrator
+	AdditionalFields  map[string]interface{}
+}
+
+// MarshalJSON implements custom JSON marshalling
+func (dc DockerContext) MarshalJSON() ([]byte, error) {
+	s := map[string]interface{}{}
+	if dc.Description != "" {
+		s["Description"] = dc.Description
+	}
+	if dc.StackOrchestrator != "" {
+		s["StackOrchestrator"] = dc.StackOrchestrator
+	}
+	if dc.AdditionalFields != nil {
+		for k, v := range dc.AdditionalFields {
+			s[k] = v
+		}
+	}
+	return json.Marshal(s)
+}
+
+// UnmarshalJSON implements custom JSON marshalling
+func (dc *DockerContext) UnmarshalJSON(payload []byte) error {
+	var data map[string]interface{}
+	if err := json.Unmarshal(payload, &data); err != nil {
+		return err
+	}
+	for k, v := range data {
+		switch k {
+		case "Description":
+			dc.Description = v.(string)
+		case "StackOrchestrator":
+			dc.StackOrchestrator = Orchestrator(v.(string))
+		default:
+			if dc.AdditionalFields == nil {
+				dc.AdditionalFields = make(map[string]interface{})
+			}
+			dc.AdditionalFields[k] = v
+		}
+	}
+	return nil
 }
 
 // GetDockerContext extracts metadata from stored context metadata

cli/command/context/list.go

@@ -10,8 +10,8 @@ import (
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/cli/context/docker"
 	kubecontext "github.com/docker/cli/cli/context/kubernetes"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/command/context_test.go

@@ -0,0 +1,27 @@
+package command
+
+import (
+	"encoding/json"
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+func TestDockerContextMetadataKeepAdditionalFields(t *testing.T) {
+	c := DockerContext{
+		Description:       "test",
+		StackOrchestrator: OrchestratorSwarm,
+		AdditionalFields: map[string]interface{}{
+			"foo": "bar",
+		},
+	}
+	jsonBytes, err := json.Marshal(c)
+	assert.NilError(t, err)
+	assert.Equal(t, `{"Description":"test","StackOrchestrator":"swarm","foo":"bar"}`, string(jsonBytes))
+
+	var c2 DockerContext
+	assert.NilError(t, json.Unmarshal(jsonBytes, &c2))
+	assert.Equal(t, c2.AdditionalFields["foo"], "bar")
+	assert.Equal(t, c2.StackOrchestrator, OrchestratorSwarm)
+	assert.Equal(t, c2.Description, "test")
+}

cli/command/network/list.go

@@ -9,8 +9,8 @@ import (
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
 	"github.com/docker/docker/api/types"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/command/node/list.go

@@ -9,8 +9,8 @@ import (
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
 	"github.com/docker/docker/api/types"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/command/plugin/list.go

@@ -8,8 +8,8 @@ import (
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/command/registry/logout.go

@@ -39,36 +39,29 @@ func runLogout(dockerCli command.Cli, serverAddress string) error {
 	}
 
 	var (
-		loggedIn        bool
-		regsToLogout    []string
+		regsToLogout    = []string{serverAddress}
 		hostnameAddress = serverAddress
-		regsToTry       = []string{serverAddress}
 	)
 	if !isDefaultRegistry {
 		hostnameAddress = registry.ConvertToHostname(serverAddress)
 		// the tries below are kept for backward compatibility where a user could have
 		// saved the registry in one of the following format.
-		regsToTry = append(regsToTry, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress)
-	}
-
-	// check if we're logged in based on the records in the config file
-	// which means it couldn't have user/pass cause they may be in the creds store
-	for _, s := range regsToTry {
-		if _, ok := dockerCli.ConfigFile().AuthConfigs[s]; ok {
-			loggedIn = true
-			regsToLogout = append(regsToLogout, s)
-		}
-	}
-
-	if !loggedIn {
-		fmt.Fprintf(dockerCli.Out(), "Not logged in to %s\n", hostnameAddress)
-		return nil
+		regsToLogout = append(regsToLogout, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress)
 	}
 
 	fmt.Fprintf(dockerCli.Out(), "Removing login credentials for %s\n", hostnameAddress)
+	errs := make(map[string]error)
 	for _, r := range regsToLogout {
 		if err := dockerCli.ConfigFile().GetCredentialsStore(r).Erase(r); err != nil {
-			fmt.Fprintf(dockerCli.Err(), "WARNING: could not erase credentials: %v\n", err)
+			errs[r] = err
+		}
+	}
+
+	// if at least one removal succeeded, report success. Otherwise report errors
+	if len(errs) == len(regsToLogout) {
+		fmt.Fprintln(dockerCli.Err(), "WARNING: could not erase credentials:")
+		for k, v := range errs {
+			fmt.Fprintf(dockerCli.Err(), "%s: %s\n", k, v)
 		}
 	}
 

cli/command/secret/ls.go

@@ -9,8 +9,8 @@ import (
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
 	"github.com/docker/docker/api/types"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/command/service/list.go

@@ -5,8 +5,6 @@ import (
 	"fmt"
 	"sort"
 
-	"vbom.ml/util/sortorder"
-
 	"github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/formatter"
@@ -14,6 +12,7 @@ import (
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/swarm"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
 )
 

cli/command/stack/list.go

@@ -9,8 +9,8 @@ import (
 	"github.com/docker/cli/cli/command/stack/kubernetes"
 	"github.com/docker/cli/cli/command/stack/options"
 	"github.com/docker/cli/cli/command/stack/swarm"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 func newListCommand(dockerCli command.Cli, common *commonOptions) *cobra.Command {

cli/command/system/prune.go

@@ -16,8 +16,8 @@ import (
 	"github.com/docker/cli/opts"
 	"github.com/docker/docker/api/types/versions"
 	"github.com/docker/go-units"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type pruneOptions struct {

cli/command/trust/common.go

@@ -10,11 +10,11 @@ import (
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/image"
 	"github.com/docker/cli/cli/trust"
+	"github.com/fvbommel/sortorder"
 	"github.com/sirupsen/logrus"
 	"github.com/theupdateframework/notary"
 	"github.com/theupdateframework/notary/client"
 	"github.com/theupdateframework/notary/tuf/data"
-	"vbom.ml/util/sortorder"
 )
 
 // trustTagKey represents a unique signed tag and hex-encoded hash pair

cli/command/trust/inspect_pretty.go

@@ -7,8 +7,8 @@ import (
 
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/formatter"
+	"github.com/fvbommel/sortorder"
 	"github.com/theupdateframework/notary/client"
-	"vbom.ml/util/sortorder"
 )
 
 func prettyPrintTrustInfo(cli command.Cli, remote string) error {

cli/command/volume/list.go

@@ -8,8 +8,8 @@ import (
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/cli/opts"
+	"github.com/fvbommel/sortorder"
 	"github.com/spf13/cobra"
-	"vbom.ml/util/sortorder"
 )
 
 type listOptions struct {

cli/config/configfile/file.go

@@ -13,6 +13,7 @@ import (
 	"github.com/docker/cli/cli/config/credentials"
 	"github.com/docker/cli/cli/config/types"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 )
 
 const (
@@ -177,7 +178,7 @@ func (configFile *ConfigFile) SaveToWriter(writer io.Writer) error {
 }
 
 // Save encodes and writes out all the authorization information
-func (configFile *ConfigFile) Save() error {
+func (configFile *ConfigFile) Save() (retErr error) {
 	if configFile.Filename == "" {
 		return errors.Errorf("Can't save config with empty filename")
 	}
@@ -190,12 +191,26 @@ func (configFile *ConfigFile) Save() error {
 	if err != nil {
 		return err
 	}
+	defer func() {
+		temp.Close()
+		if retErr != nil {
+			if err := os.Remove(temp.Name()); err != nil {
+				logrus.WithError(err).WithField("file", temp.Name()).Debug("Error cleaning up temp file")
+			}
+		}
+	}()
+
 	err = configFile.SaveToWriter(temp)
-	temp.Close()
 	if err != nil {
-		os.Remove(temp.Name())
 		return err
 	}
+
+	if err := temp.Close(); err != nil {
+		return errors.Wrap(err, "error closing temp file")
+	}
+
+	// Try copying the current config file (if any) ownership and permissions
+	copyFilePermissions(configFile.Filename, temp.Name())
 	return os.Rename(temp.Name(), configFile.Filename)
 }
 

cli/config/configfile/file_unix.go

@@ -0,0 +1,35 @@
+// +build !windows
+
+package configfile
+
+import (
+	"os"
+	"syscall"
+)
+
+// copyFilePermissions copies file ownership and permissions from "src" to "dst",
+// ignoring any error during the process.
+func copyFilePermissions(src, dst string) {
+	var (
+		mode     os.FileMode = 0600
+		uid, gid int
+	)
+
+	fi, err := os.Stat(src)
+	if err != nil {
+		return
+	}
+	if fi.Mode().IsRegular() {
+		mode = fi.Mode()
+	}
+	if err := os.Chmod(dst, mode); err != nil {
+		return
+	}
+
+	uid = int(fi.Sys().(*syscall.Stat_t).Uid)
+	gid = int(fi.Sys().(*syscall.Stat_t).Gid)
+
+	if uid > 0 && gid > 0 {
+		_ = os.Chown(dst, uid, gid)
+	}
+}

cli/config/configfile/file_windows.go

@@ -0,0 +1,5 @@
+package configfile
+
+func copyFilePermissions(src, dst string) {
+	// TODO implement for Windows
+}

cli/context/store/metadatastore.go

@@ -9,7 +9,7 @@ import (
 	"reflect"
 	"sort"
 
-	"vbom.ml/util/sortorder"
+	"github.com/fvbommel/sortorder"
 )
 
 const (

dockerfiles/Dockerfile.binary-native

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.13.11
+ARG GO_VERSION=1.13.15
 
 FROM    golang:${GO_VERSION}-alpine
 

dockerfiles/Dockerfile.cross

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.13.11
+ARG GO_VERSION=1.13.15
 
 FROM	dockercore/golang-cross:${GO_VERSION}
 ENV     DISABLE_WARN_OUTSIDE_CONTAINER=1

dockerfiles/Dockerfile.dev

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.13.11
+ARG GO_VERSION=1.13.15
 
 FROM    golang:${GO_VERSION}-alpine
 

dockerfiles/Dockerfile.e2e

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.13.11
+ARG GO_VERSION=1.13.15
 
 # Use Debian based image as docker-compose requires glibc.
 FROM golang:${GO_VERSION}-buster

dockerfiles/Dockerfile.lint

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.1.3-experimental
 
-ARG GO_VERSION=1.13.11
+ARG GO_VERSION=1.13.15
 ARG GOLANGCI_LINTER_SHA="v1.21.0"
 
 FROM    golang:${GO_VERSION}-alpine AS build

docs/extend/config.md

@@ -34,11 +34,11 @@ Config provides the base accessible fields for working with V0 plugin format
 
 - **`description`** *string*
 
-	description of the plugin
+    description of the plugin
 
 - **`documentation`** *string*
 
-  	link to the documentation about the plugin
+    link to the documentation about the plugin
 
 - **`interface`** *PluginInterface*
 
@@ -96,7 +96,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`name`** *string*
 
-	  name of the mount.
+      name of the mount.
 
     - **`description`** *string*
 
@@ -104,11 +104,11 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`source`** *string*
 
-	  source of the mount.
+      source of the mount.
 
     - **`destination`** *string*
 
-	  destination of the mount.
+      destination of the mount.
 
     - **`type`** *string*
 
@@ -116,7 +116,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`options`** *string array*
 
-	  options of the mount.
+      options of the mount.
 
 - **`ipchost`** *boolean*
    Access to host ipc namespace.
@@ -135,7 +135,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`name`** *string*
 
-	  name of the env.
+      name of the env.
 
     - **`description`** *string*
 
@@ -143,7 +143,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`value`** *string*
 
-	  value of the env.
+      value of the env.
 
 - **`args`** *PluginArgs*
 
@@ -151,7 +151,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`name`** *string*
 
-	  name of the args.
+      name of the args.
 
     - **`description`** *string*
 
@@ -159,7 +159,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`value`** *string array*
 
-	  values of the args.
+      values of the args.
 
 - **`linux`** *PluginLinux*
 
@@ -169,7 +169,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
     - **`allowAllDevices`** *boolean*
 
-	   If `/dev` is bind mounted from the host, and allowAllDevices is set to true, the plugin will have `rwm` access to all devices on the host.
+       If `/dev` is bind mounted from the host, and allowAllDevices is set to true, the plugin will have `rwm` access to all devices on the host.
 
     - **`devices`** *PluginDevice array*
 
@@ -177,7 +177,7 @@ Config provides the base accessible fields for working with V0 plugin format
 
          - **`name`** *string*
 
-	       name of the device.
+           name of the device.
 
          - **`description`** *string*
 
@@ -193,45 +193,45 @@ Config provides the base accessible fields for working with V0 plugin format
 
 ```json
 {
-            "Args": {
-                "Description": "",
-                "Name": "",
-                "Settable": null,
-                "Value": null
-            },
-            "Description": "A sample volume plugin for Docker",
-            "Documentation": "https://docs.docker.com/engine/extend/plugins/",
-            "Entrypoint": [
-                "/usr/bin/sample-volume-plugin",
-                "/data"
-            ],
-            "Env": [
-                {
-                    "Description": "",
-                    "Name": "DEBUG",
-                    "Settable": [
-                        "value"
-                    ],
-                    "Value": "0"
-                }
-            ],
-            "Interface": {
-                "Socket": "plugin.sock",
-                "Types": [
-                    "docker.volumedriver/1.0"
-                ]
-            },
-            "Linux": {
-                "Capabilities": null,
-                "AllowAllDevices": false,
-                "Devices": null
-            },
-            "Mounts": null,
-            "Network": {
-                "Type": ""
-            },
-            "PropagatedMount": "/data",
-            "User": {},
-            "Workdir": ""
+  "Args": {
+    "Description": "",
+    "Name": "",
+    "Settable": null,
+    "Value": null
+  },
+  "Description": "A sample volume plugin for Docker",
+  "Documentation": "https://docs.docker.com/engine/extend/plugins/",
+  "Entrypoint": [
+    "/usr/bin/sample-volume-plugin",
+    "/data"
+  ],
+  "Env": [
+    {
+      "Description": "",
+      "Name": "DEBUG",
+      "Settable": [
+        "value"
+      ],
+      "Value": "0"
+    }
+  ],
+  "Interface": {
+    "Socket": "plugin.sock",
+    "Types": [
+      "docker.volumedriver/1.0"
+    ]
+  },
+  "Linux": {
+    "Capabilities": null,
+    "AllowAllDevices": false,
+    "Devices": null
+  },
+  "Mounts": null,
+  "Network": {
+    "Type": ""
+  },
+  "PropagatedMount": "/data",
+  "User": {},
+  "Workdir": ""
 }
 ```

docs/extend/plugins_network.md

@@ -42,14 +42,18 @@ Once running however, network driver plugins are used just like the built-in
 network drivers: by being mentioned as a driver in network-oriented Docker
 commands. For example,
 
-    $ docker network create --driver weave mynet
+```bash
+$ docker network create --driver weave mynet
+```
 
 Some network driver plugins are listed in [plugins](legacy_plugins.md)
 
 The `mynet` network is now owned by `weave`, so subsequent commands
 referring to that network will be sent to the plugin,
 
-    $ docker run --network=mynet busybox top
+```bash
+$ docker run --network=mynet busybox top
+```
 
 
 ## Find network plugins
@@ -61,8 +65,8 @@ or on the third party's site.
 
 ## Write a network plugin
 
-Network plugins implement the [Docker plugin
-API](plugin_api.md) and the network plugin protocol
+Network plugins implement the [Docker plugin API](plugin_api.md) and the network
+plugin protocol
 
 ## Network plugin protocol
 
@@ -74,5 +78,5 @@ documented as part of libnetwork:
 
 To interact with the Docker maintainers and other interested users, see the IRC channel `#docker-network`.
 
--  [Docker networks feature overview](https://docs.docker.com/engine/userguide/networking/)
--  The [LibNetwork](https://github.com/docker/libnetwork) project
+- [Docker networks feature overview](https://docs.docker.com/engine/userguide/networking/)
+- The [LibNetwork](https://github.com/docker/libnetwork) project

docs/reference/builder.md

@@ -173,7 +173,7 @@ be UPPERCASE to distinguish them from arguments more easily.
 
 
 Docker runs instructions in a `Dockerfile` in order. A `Dockerfile` **must
-begin with a \`FROM\` instruction**. This may be after [parser
+begin with a `FROM` instruction**. This may be after [parser
 directives](#parser-directives), [comments](#format), and globally scoped
 [ARGs](#arg). The `FROM` instruction specifies the [*Parent
 Image*](https://docs.docker.com/glossary/#parent_image) from which you are
@@ -189,8 +189,52 @@ else in a line is treated as an argument. This allows statements like:
 RUN echo 'we are running some # of cool things'
 ```
 
+Comment lines are removed before the Dockerfile instructions are executed, which
+means that the comment in the following example is not handled by the shell
+executing the `echo` command, and both examples below are equivalent:
+
+```dockerfile
+RUN echo hello \
+# comment
+world
+```
+
+```dockerfile
+RUN echo hello \
+world
+```
+
 Line continuation characters are not supported in comments.
 
+> **Note on whitespace**
+>
+> For backward compatibility, leading whitespace before comments (`#`) and
+> instructions (such as `RUN`) are ignored, but discouraged. Leading whitespace
+> is not preserved in these cases, and the following examples are therefore
+> equivalent:
+>
+> ```dockerfile
+>         # this is a comment-line
+>     RUN echo hello
+> RUN echo world
+> ```
+> 
+> ```dockerfile
+> # this is a comment-line
+> RUN echo hello
+> RUN echo world
+> ```
+> 
+> Note however, that whitespace in instruction _arguments_, such as the commands
+> following `RUN`, are preserved, so the following example prints `    hello    world`
+> with leading whitespace as specified:
+>
+> ```dockerfile
+> RUN echo "\
+>      hello\
+>      world"
+> ```
+
 ## Parser directives
 
 Parser directives are optional, and affect the way in which subsequent lines
@@ -608,7 +652,7 @@ FROM [--platform=<platform>] <image>[@<digest>] [AS <name>]
 ```
 
 The `FROM` instruction initializes a new build stage and sets the
-[*Base Image*](../../glossary/#base-image) for subsequent instructions. As such, a
+[*Base Image*](https://docs.docker.com/glossary/#base_image) for subsequent instructions. As such, a
 valid `Dockerfile` must start with a `FROM` instruction. The image can be
 any valid image – it is especially easy to start by **pulling an image** from
 the [*Public Repositories*](https://docs.docker.com/engine/tutorials/dockerrepos/).
@@ -622,7 +666,7 @@ the [*Public Repositories*](https://docs.docker.com/engine/tutorials/dockerrepos
   instructions.
 - Optionally a name can be given to a new build stage by adding `AS name` to the
   `FROM` instruction. The name can be used in subsequent `FROM` and
-  `COPY --from=<name|index>` instructions to refer to the image built in this stage.
+  `COPY --from=<name>` instructions to refer to the image built in this stage.
 - The `tag` or `digest` values are optional. If you omit either of them, the
   builder assumes a `latest` tag by default. The builder returns an error if it
   cannot find the `tag` value.
@@ -1232,11 +1276,11 @@ COPY test.txt /absoluteDir/
 
 When copying files or directories that contain special characters (such as `[`
 and `]`), you need to escape those paths following the Golang rules to prevent
-them from being treated as a matching pattern. For example, to add a file
+them from being treated as a matching pattern. For example, to copy a file
 named `arr[0].txt`, use the following;
 
 ```dockerfile
-ADD arr[[]0].txt /mydir/
+COPY arr[[]0].txt /mydir/
 ```
 
 All new files and directories are created with a UID and GID of 0, unless the
@@ -1267,12 +1311,11 @@ no lookup and does not depend on container root filesystem content.
 > If you build using STDIN (`docker build - < somefile`), there is no
 > build context, so `COPY` can't be used.
 
-Optionally `COPY` accepts a flag `--from=<name|index>` that can be used to set
+Optionally `COPY` accepts a flag `--from=<name>` that can be used to set
 the source location to a previous build stage (created with `FROM .. AS <name>`)
-that will be used instead of a build context sent by the user. The flag also
-accepts a numeric index assigned for all previous build stages started with
-`FROM` instruction. In case a build stage with a specified name can't be found an
-image with the same name is attempted to be used instead.
+that will be used instead of a build context sent by the user. In case a build
+stage with a specified name can't be found an image with the same name is
+attempted to be used instead.
 
 `COPY` obeys the following rules:
 

docs/reference/commandline/build.md

@@ -110,6 +110,11 @@ Build Syntax Suffix             | Commit Used           | Build Context Used
 `myrepo.git#mytag:myfolder`     | `refs/tags/mytag`     | `/myfolder`
 `myrepo.git#mybranch:myfolder`  | `refs/heads/mybranch` | `/myfolder`
 
+> **Note**
+>
+> You cannot specify the build-context directory (`myfolder` in the examples above)
+> when using BuildKit as builder (`DOCKER_BUILDKIT=1`). Support for this feature
+> is tracked in [buildkit#1684](https://github.com/moby/buildkit/issues/1684).
 
 ### Tarball contexts
 

docs/reference/commandline/cli.md

@@ -61,16 +61,9 @@ by the `docker` command line:
 
 * `DOCKER_API_VERSION` The API version to use (e.g. `1.19`)
 * `DOCKER_CONFIG` The location of your client configuration files.
-* `DOCKER_CERT_PATH` The location of your authentication keys.
 * `DOCKER_CLI_EXPERIMENTAL` Enable experimental features for the cli (e.g. `enabled` or `disabled`)
-* `DOCKER_DRIVER` The graph driver to use.
 * `DOCKER_HOST` Daemon socket to connect to.
-* `DOCKER_NOWARN_KERNEL_VERSION` Prevent warnings that your Linux kernel is
-  unsuitable for Docker.
-* `DOCKER_RAMDISK` If set this will disable 'pivot_root'.
 * `DOCKER_STACK_ORCHESTRATOR` Configure the default orchestrator to use when using `docker stack` management commands.
-* `DOCKER_TLS` When set Docker uses TLS.
-* `DOCKER_TLS_VERIFY` When set Docker uses TLS and verifies the remote.
 * `DOCKER_CONTENT_TRUST` When set Docker uses notary to sign and verify images.
   Equates to `--disable-content-trust=false` for build, create, pull, push, run.
 * `DOCKER_CONTENT_TRUST_SERVER` The URL of the Notary server to use. This defaults
@@ -78,10 +71,17 @@ by the `docker` command line:
 * `DOCKER_HIDE_LEGACY_COMMANDS` When set, Docker hides "legacy" top-level commands (such as `docker rm`, and
   `docker pull`) in `docker help` output, and only `Management commands` per object-type (e.g., `docker container`) are
   printed. This may become the default in a future release, at which point this environment-variable is removed.
-* `DOCKER_TMPDIR` Location for temporary Docker files.
 * `DOCKER_CONTEXT` Specify the context to use (overrides DOCKER_HOST env var and default context set with "docker context use")
 * `DOCKER_DEFAULT_PLATFORM` Specify the default platform for the commands that take the `--platform` flag.
 
+#### Shared Environment variables
+
+These environment variables can be used both with the `docker` command line and
+`dockerd` command line:
+
+* `DOCKER_CERT_PATH` The location of your authentication keys.
+* `DOCKER_TLS_VERIFY` When set Docker uses TLS and verifies the remote.
+
 Because Docker is developed using Go, you can also use any environment
 variables used by the Go runtime. In particular, you may find these useful:
 

docs/reference/commandline/dockerd.md

@@ -117,11 +117,24 @@ the `daemon.json` file.
 > Enable experimental features by starting `dockerd` with the `--experimental`
 > flag or adding `"experimental": true` to the `daemon.json` file.
 
+### Environment variables
+
+For easy reference, the following list of environment variables are supported
+by the `dockerd` command line:
+
+* `DOCKER_DRIVER` The graph driver to use.
+* `DOCKER_NOWARN_KERNEL_VERSION` Prevent warnings that your Linux kernel is
+  unsuitable for Docker.
+* `DOCKER_RAMDISK` If set this will disable 'pivot_root'.
+* `DOCKER_TMPDIR` Location for temporary Docker files.
+* `MOBY_DISABLE_PIGZ` Do not use [`unpigz`](https://linux.die.net/man/1/pigz) to
+  decompress layers in parallel when pulling images, even if it is installed.
+
 ## Examples
 
 ### Daemon socket option
 
-The Docker daemon can listen for [Docker Engine API](../api/)
+The Docker daemon can listen for [Docker Engine API](https://docs.docker.com/engine/api/)
 requests via three different types of Socket: `unix`, `tcp`, and `fd`.
 
 By default, a `unix` domain socket (or IPC socket) is created at

docs/reference/commandline/plugin_create.md

@@ -38,8 +38,8 @@ plugin
 
 $ docker plugin ls
 
-ID                  NAME                TAG                 DESCRIPTION                  ENABLED
-672d8144ec02        plugin              latest              A sample plugin for Docker   false
+ID              NAME            DESCRIPTION                  ENABLED
+672d8144ec02    plugin:latest   A sample plugin for Docker   false
 ```
 
 The plugin can subsequently be enabled for local use or pushed to the public registry.

docs/reference/commandline/plugin_disable.md

@@ -30,8 +30,8 @@ and enabled:
 ```bash
 $ docker plugin ls
 
-ID                  NAME                             TAG                 DESCRIPTION                ENABLED
-69553ca1d123        tiborvass/sample-volume-plugin   latest              A test plugin for Docker   true
+ID            NAME                                    DESCRIPTION                ENABLED
+69553ca1d123  tiborvass/sample-volume-plugin:latest   A test plugin for Docker   true
 ```
 
 To disable the plugin, use the following command:
@@ -43,8 +43,8 @@ tiborvass/sample-volume-plugin
 
 $ docker plugin ls
 
-ID                  NAME                             TAG                 DESCRIPTION                ENABLED
-69553ca1d123        tiborvass/sample-volume-plugin   latest              A test plugin for Docker   false
+ID            NAME                                    DESCRIPTION                ENABLED
+69553ca1d123  tiborvass/sample-volume-plugin:latest   A test plugin for Docker   false
 ```
 
 ## Related commands

docs/reference/commandline/plugin_enable.md

@@ -29,8 +29,8 @@ but disabled:
 ```bash
 $ docker plugin ls
 
-ID                  NAME                             TAG                 DESCRIPTION                ENABLED
-69553ca1d123        tiborvass/sample-volume-plugin   latest              A test plugin for Docker   false
+ID            NAME                                    DESCRIPTION                ENABLED
+69553ca1d123  tiborvass/sample-volume-plugin:latest   A test plugin for Docker   false
 ```
 
 To enable the plugin, use the following command:
@@ -42,8 +42,8 @@ tiborvass/sample-volume-plugin
 
 $ docker plugin ls
 
-ID                  NAME                             TAG                 DESCRIPTION                ENABLED
-69553ca1d123        tiborvass/sample-volume-plugin   latest              A test plugin for Docker   true
+ID            NAME                                    DESCRIPTION                ENABLED
+69553ca1d123  tiborvass/sample-volume-plugin:latest   A test plugin for Docker   true
 ```
 
 ## Related commands

docs/reference/commandline/plugin_install.md

@@ -49,8 +49,8 @@ After the plugin is installed, it appears in the list of plugins:
 ```bash
 $ docker plugin ls
 
-ID                  NAME                  TAG                 DESCRIPTION                ENABLED
-69553ca1d123        vieux/sshfs           latest              sshFS plugin for Docker    true
+ID             NAME                  DESCRIPTION                ENABLED
+69553ca1d123   vieux/sshfs:latest    sshFS plugin for Docker    true
 ```
 
 ## Related commands

docs/reference/commandline/plugin_ls.md

@@ -34,8 +34,8 @@ Refer to the [filtering](#filtering) section for more information about availabl
 ```bash
 $ docker plugin ls
 
-ID                  NAME                             TAG                 DESCRIPTION                ENABLED
-69553ca1d123        tiborvass/sample-volume-plugin   latest              A test plugin for Docker   true
+ID            NAME                                    DESCRIPTION                ENABLED
+69553ca1d123  tiborvass/sample-volume-plugin:latest   A test plugin for Docker   true
 ```
 
 ### Filtering
@@ -65,7 +65,7 @@ Installed plugin vieux/sshfs
 
 $ docker plugin ls --filter enabled=true
 
-NAME                  TAG                 DESCRIPTION                ENABLED
+ID                  NAME                DESCRIPTION         ENABLED
 ```
 
 ### Formatting
@@ -78,7 +78,7 @@ Valid placeholders for the Go template are listed below:
 Placeholder        | Description
 -------------------|------------------------------------------------------------
 `.ID`              | Plugin ID
-`.Name`            | Plugin name
+`.Name`            | Plugin name and tag
 `.Description`     | Plugin description
 `.Enabled`         | Whether plugin is enabled or not
 `.PluginReference` | The reference used to push/pull from a registry

docs/reference/commandline/plugin_push.md

@@ -29,8 +29,8 @@ The following example shows how to push a sample `user/plugin`.
 ```bash
 $ docker plugin ls
 
-ID                  NAME                  TAG                 DESCRIPTION                ENABLED
-69553ca1d456        user/plugin           latest              A sample plugin for Docker false
+ID             NAME                    DESCRIPTION                  ENABLED
+69553ca1d456   user/plugin:latest      A sample plugin for Docker   false
 
 $ docker plugin push user/plugin
 ```

docs/reference/commandline/stack_ps.md

@@ -103,7 +103,7 @@ tz6j82jnwrx7        voting_db.1           postgres:9.4
 
 #### desired-state
 
-The `desired-state` filter can take the values `running`, `shutdown`, or `accepted`.
+The `desired-state` filter can take the values `running`, `shutdown`, `ready` or `accepted`.
 
 ```bash
 $ docker stack ps -f "desired-state=running" voting

vendor.conf

@@ -2,7 +2,7 @@ cloud.google.com/go                                 0ebda48a7f143b1cce9eb37a8c11
 github.com/agl/ed25519                              5312a61534124124185d41f09206b9fef1d88403
 github.com/asaskevich/govalidator                   f9ffefc3facfbe0caee3fea233cbb6e8208f4541
 github.com/Azure/go-ansiterm                        d6e3b3328b783f23731bc4d058875b0371ff8109
-github.com/beorn7/perks                             e7f67b54abbeac9c40a31de0f81159e4cafebd6a
+github.com/beorn7/perks                             37c8de3658fcb183f997c4e13e8337516ab753e6 # v1.0.1
 github.com/containerd/console                       0650fd9eeb50bab4fc99dceb9f2e14cf58f36e7f
 github.com/containerd/containerd                    3a3f0aac8819165839a41fee77a4f4ac8b103097
 github.com/containerd/continuity                    aaeac12a7ffcd198ae25440a9dff125c2e2703a7
@@ -15,7 +15,7 @@ github.com/davecgh/go-spew                          8991bc29aa16c548c550c7ff7826
 github.com/dgrijalva/jwt-go                         a2c85815a77d0f951e33ba4db5ae93629a1530af
 github.com/docker/compose-on-kubernetes             cc4914dfd1b6684a9750a59f3613fc0a95291824 # v0.4.23
 github.com/docker/distribution                      0d3efadf0154c2b8a4e7b6621fff9809655cc580
-github.com/docker/docker                            a004854097417a591c3f6a3aeaab75efae3c5814 https://github.com/docker/engine.git # 19.03 branch
+github.com/docker/docker                            a004854097417a591c3f6a3aeaab75efae3c5814 # 19.03 branch
 github.com/docker/docker-credential-helpers         54f0238b6bf101fc3ad3b34114cb5520beb562f5 # v0.6.3
 github.com/docker/go                                d30aec9fd63c35133f8f79c3412ad91a3b08be06 # Contains a customized version of canonical/json and is used by Notary. The package is periodically rebased on current Go versions.
 github.com/docker/go-connections                    7395e3f8aa162843a74ed6d48e79627d9792ac55 # v0.4.0
@@ -26,6 +26,7 @@ github.com/docker/libtrust                          9cbd2a1374f46905c68a4eb3694a
 github.com/docker/licensing                         9781369abdb5281cdc07a2a446c6df01347ec793
 github.com/docker/swarmkit                          48eb1828ce81be20b25d647f6ca8f33d599f705c
 github.com/evanphx/json-patch                       72bf35d0ff611848c1dc9df0f976c81192392fa5 # v4.1.0
+github.com/fvbommel/sortorder                       6b6b45a52fcc54f788363c1880630248b63402a1 # v1.0.0
 github.com/gofrs/flock                              7f43ea2e6a643ad441fc12d0ecc0d3388b300c53 # v0.7.0
 github.com/gogo/googleapis                          d31c731455cb061f42baff3bda55bad0118b126b # v1.2.0
 github.com/gogo/protobuf                            ba06b47c162d49f2af050fb4c75bcbc86a159d5c # v1.2.1
@@ -45,15 +46,15 @@ github.com/imdario/mergo                            7c29201646fa3de8506f70121347
 github.com/inconshreveable/mousetrap                76626ae9c91c4f2a10f34cad8ce83ea42c93bb75 # v1.0.0
 github.com/jaguilar/vt100                           ad4c4a5743050fb7f88ce968dca9422f72a0e3f2 git://github.com/tonistiigi/vt100.git
 github.com/json-iterator/go                         0ff49de124c6f76f8494e194af75bde0f1a49a29 # 1.1.6
-github.com/konsorten/go-windows-terminal-sequences  f55edac94c9bbba5d6182a4be46d86a2c9b5b50e # v1.0.2
+github.com/konsorten/go-windows-terminal-sequences  edb144dfd453055e1e49a3d8b410a660b5a87613 # v1.0.3
 github.com/kr/pty                                   521317be5ebc228a0f0ede099fa2a0b5ece22e49 # v1.1.4
 github.com/mattn/go-shellwords                      a72fbe27a1b0ed0df2f02754945044ce1456608b # v1.0.5
 github.com/matttproud/golang_protobuf_extensions    c12348ce28de40eed0136aa2b644d0ee0650e56c # v1.0.1
 github.com/Microsoft/go-winio                       84b4ab48a50763fe7b3abcef38e5205c12027fac
 github.com/Microsoft/hcsshim                        672e52e9209d1e53718c1b6a7d68cc9272654ab5
 github.com/miekg/pkcs11                             cb39313ec884f2cd77f4762875fe96aecf68f8e3 # v1.0.2
-github.com/mitchellh/mapstructure                   f15292f7a699fcc1a38a80977f80a046874ba8ac
-github.com/moby/buildkit                            ae10b292fefb00e0fbf9fecd1419c5f252e58895
+github.com/mitchellh/mapstructure                   fa473d140ef3c6adf42d6b391fe76707f1f243c8 # v1.0.0
+github.com/moby/buildkit                            df89d4dcf73ce414cd76837bfb0e9a0cc0ef3386 # v0.6.4-32-gdf89d4dc
 github.com/modern-go/concurrent                     bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94 # 1.0.3
 github.com/modern-go/reflect2                       4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd # 1.0.1
 github.com/morikuni/aec                             39771216ff4c63d11f5e604076f9c45e8be1067b
@@ -74,17 +75,17 @@ github.com/spf13/cobra                              ef82de70bb3f60c65fb8eebacbb2
 github.com/spf13/pflag                              4cb166e4f25ac4e8016a3595bbf7ea2e9aa85a2c https://github.com/thaJeztah/pflag.git # temporary fork with https://github.com/spf13/pflag/pull/170 applied, which isn't merged yet upstream
 github.com/syndtr/gocapability                      d98352740cb2c55f81556b63d4a1ec64c5a319c2
 github.com/theupdateframework/notary                d6e1431feb32348e0650bf7551ac5cffd01d857b # v0.6.1
-github.com/tonistiigi/fsutil                        3d2716dd0a4d06ff854241c7e8b6f3f904e1719f
+github.com/tonistiigi/fsutil                        0f039a052ca1da01626278199624b62aed9b3729
 github.com/tonistiigi/units                         6950e57a87eaf136bbe44ef2ec8e75b9e3569de2
 github.com/xeipuuv/gojsonpointer                    4e3ac2762d5f479393488629ee9370b50873b3a6
 github.com/xeipuuv/gojsonreference                  bd5ef7bd5415a7ac448318e64f11a24cd21e594b
 github.com/xeipuuv/gojsonschema                     93e72a773fade158921402d6a24c819b48aba29d
-golang.org/x/crypto                                 69ecbb4d6d5dab05e49161c6e77ea40a030884e1
+golang.org/x/crypto                                 2aa609cf4a9d7d1126360de73b55b6002f9e052a
 golang.org/x/net                                    eb5bcb51f2a31c7d5141d810b70815c05d9c9146
 golang.org/x/oauth2                                 ef147856a6ddbb60760db74283d2424e98c87bff
 golang.org/x/sync                                   e225da77a7e68af35c70ccbf71af2b83e6acac3c
 golang.org/x/sys                                    4b34438f7a67ee5f45cc6132e2bad873a20324e9
-golang.org/x/text                                   f21a4dfb5e38f5895301dc265a8def02365cc3d0 # v0.3.0
+golang.org/x/text                                   23ae387dee1f90d29a23c0e87ee0b46038fbed0e # v0.3.3
 golang.org/x/time                                   fbb02b2291d28baffd63558aa44b4b56f178d650
 google.golang.org/genproto                          02b4e95473316948020af0b7a4f0f22c73929b0e
 google.golang.org/grpc                              39e8a7b072a67ca2a75f57fa2e0d50995f5b22f6 # v1.23.1
@@ -99,6 +100,5 @@ k8s.io/kube-openapi                                 5e45bb682580c9be5ffa4d27d367
 k8s.io/kubernetes                                   641856db18352033a0d96dbc99153fa3b27298e5 # v1.14.0
 k8s.io/utils                                        21c4ce38f2a793ec01e925ddc31216500183b773
 sigs.k8s.io/yaml                                    fd68e9863619f6ec2fdd8625fe1f02e7c877e480 # v1.1.0
-vbom.ml/util                                        256737ac55c46798123f754ab7d2c784e2c71783
 
 # DO NOT EDIT BELOW THIS LINE -------- reserved for downstream projects --------

vendor/github.com/beorn7/perks/go.mod

@@ -0,0 +1,3 @@
+module github.com/beorn7/perks
+
+go 1.11

vendor/github.com/fvbommel/sortorder/README.md

@@ -0,0 +1,5 @@
+# sortorder [![GoDoc](https://godoc.org/github.com/fvbommel/sortorder?status.svg)](https://godoc.org/github.com/fvbommel/sortorder)
+
+    import "github.com/fvbommel/sortorder"
+
+Sort orders and comparison functions.

vendor/github.com/fvbommel/sortorder/doc.go

@@ -2,4 +2,4 @@
 //
 // Currently, it only implements so-called "natural order", where integers
 // embedded in strings are compared by value.
-package sortorder // import "vbom.ml/util/sortorder"
+package sortorder

vendor/github.com/fvbommel/sortorder/go.mod

@@ -0,0 +1,5 @@
+module github.com/fvbommel/sortorder
+
+go 1.13
+
+require github.com/xlab/handysort v0.0.0-20150421192137-fb3537ed64a1

vendor/github.com/fvbommel/sortorder/natsort.go

@@ -57,7 +57,7 @@ func NaturalLess(str1, str2 string) bool {
 			if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 {
 				return len1 < len2
 			}
-			// If they're not equal, string comparison is correct.
+			// If they're equal, string comparison is correct.
 			if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 {
 				return nr1 < nr2
 			}

vendor/github.com/konsorten/go-windows-terminal-sequences/README.md

@@ -27,6 +27,7 @@ We thank all the authors who provided code to this library:
 
 * Felix Kollmann
 * Nicolas Perraut
+* @dirty49374
 
 ## License
 

vendor/github.com/konsorten/go-windows-terminal-sequences/sequences.go

@@ -4,7 +4,6 @@ package sequences
 
 import (
 	"syscall"
-	"unsafe"
 )
 
 var (
@@ -27,7 +26,7 @@ func EnableVirtualTerminalProcessing(stream syscall.Handle, enable bool) error {
 		mode &^= ENABLE_VIRTUAL_TERMINAL_PROCESSING
 	}
 
-	ret, _, err := setConsoleMode.Call(uintptr(unsafe.Pointer(stream)), uintptr(mode))
+	ret, _, err := setConsoleMode.Call(uintptr(stream), uintptr(mode))
 	if ret == 0 {
 		return err
 	}

vendor/github.com/mitchellh/mapstructure/go.mod

@@ -0,0 +1 @@
+module github.com/mitchellh/mapstructure

vendor/github.com/moby/buildkit/frontend/gateway/pb/caps.go

@@ -19,6 +19,9 @@ const (
 	CapReadDir                 apicaps.CapID = "readdir"
 	CapStatFile                apicaps.CapID = "statfile"
 	CapImportCaches            apicaps.CapID = "importcaches"
+
+	// CapGatewaySolveMetadata can be used to check if solve calls from gateway reliably return metadata
+	CapGatewaySolveMetadata apicaps.CapID = "gateway.solve.metadata"
 )
 
 func init() {
@@ -92,4 +95,11 @@ func init() {
 		Enabled: true,
 		Status:  apicaps.CapStatusExperimental,
 	})
+
+	Caps.Init(apicaps.Cap{
+		ID:      CapGatewaySolveMetadata,
+		Name:    "gateway metadata",
+		Enabled: true,
+		Status:  apicaps.CapStatusExperimental,
+	})
 }

vendor/github.com/moby/buildkit/go.mod

@@ -1,10 +1,11 @@
 module github.com/moby/buildkit
 
-go 1.11
+go 1.12
 
 require (
 	github.com/BurntSushi/toml v0.3.1
 	github.com/Microsoft/go-winio v0.4.13-0.20190408173621-84b4ab48a507
+	github.com/Microsoft/hcsshim v0.8.5 // indirect
 	github.com/apache/thrift v0.0.0-20161221203622-b2a4d4ae21c7 // indirect
 	github.com/codahale/hdrhistogram v0.0.0-20160425231609-f8ad88b59a58 // indirect
 	github.com/containerd/cgroups v0.0.0-20190226200435-dbea6f2bd416 // indirect
@@ -53,7 +54,7 @@ require (
 	github.com/sirupsen/logrus v1.3.0
 	github.com/stretchr/testify v1.3.0
 	github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2 // indirect
-	github.com/tonistiigi/fsutil v0.0.0-20190819224149-3d2716dd0a4d
+	github.com/tonistiigi/fsutil v0.0.0-20200128191323-6c909ab392c1
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea
 	github.com/uber/jaeger-client-go v0.0.0-20180103221425-e02c85f9069e
 	github.com/uber/jaeger-lib v1.2.1 // indirect

vendor/github.com/moby/buildkit/session/filesync/filesync.go

@@ -255,7 +255,7 @@ func (sp *fsSyncTarget) Register(server *grpc.Server) {
 	RegisterFileSendServer(server, sp)
 }
 
-func (sp *fsSyncTarget) DiffCopy(stream FileSend_DiffCopyServer) error {
+func (sp *fsSyncTarget) DiffCopy(stream FileSend_DiffCopyServer) (err error) {
 	if sp.outdir != "" {
 		return syncTargetDiffCopy(stream, sp.outdir)
 	}
@@ -277,7 +277,12 @@ func (sp *fsSyncTarget) DiffCopy(stream FileSend_DiffCopyServer) error {
 	if wc == nil {
 		return status.Errorf(codes.AlreadyExists, "target already exists")
 	}
-	defer wc.Close()
+	defer func() {
+		err1 := wc.Close()
+		if err != nil {
+			err = err1
+		}
+	}()
 	return writeTargetFile(stream, wc)
 }
 

vendor/github.com/moby/buildkit/session/sshforward/ssh.go

@@ -75,6 +75,10 @@ func MountSSHSocket(ctx context.Context, c session.Caller, opt SocketOpt) (sockP
 		}
 	}()
 
+	if err := os.Chmod(dir, 0711); err != nil {
+		return "", nil, errors.WithStack(err)
+	}
+
 	sockPath = filepath.Join(dir, "ssh_auth_sock")
 
 	l, err := net.Listen("unix", sockPath)

vendor/github.com/moby/buildkit/session/sshforward/sshprovider/agentprovider.go

@@ -178,7 +178,7 @@ type sock struct {
 }
 
 type readOnlyAgent struct {
-	agent.Agent
+	agent.ExtendedAgent
 }
 
 func (a *readOnlyAgent) Add(_ agent.AddedKey) error {
@@ -196,3 +196,7 @@ func (a *readOnlyAgent) RemoveAll() error {
 func (a *readOnlyAgent) Lock(_ []byte) error {
 	return errors.Errorf("locking agent not allowed by buildkit")
 }
+
+func (a *readOnlyAgent) Extension(_ string, _ []byte) ([]byte, error) {
+	return nil, errors.Errorf("extensions not allowed by buildkit")
+}

vendor/github.com/moby/buildkit/util/progress/progressui/display.go

@@ -548,6 +548,9 @@ func align(l, r string, w int) string {
 }
 
 func wrapHeight(j []*job, limit int) []*job {
+	if limit < 0 {
+		return nil
+	}
 	var wrapped []*job
 	wrapped = append(wrapped, j...)
 	if len(j) > limit {

vendor/github.com/tonistiigi/fsutil/diff.go

@@ -5,6 +5,7 @@ import (
 	"hash"
 	"os"
 
+	"github.com/pkg/errors"
 	"github.com/tonistiigi/fsutil/types"
 )
 
@@ -25,9 +26,14 @@ func GetWalkerFn(root string) walkerFn {
 				return err
 			}
 
+			stat, ok := f.Sys().(*types.Stat)
+			if !ok {
+				return errors.Errorf("%T invalid file without stat information", f.Sys())
+			}
+
 			p := &currentPath{
 				path: path,
-				f:    f,
+				stat: stat,
 			}
 
 			select {

vendor/github.com/tonistiigi/fsutil/diff_containerd.go

@@ -37,12 +37,12 @@ type ChangeFunc func(ChangeKind, string, os.FileInfo, error) error
 
 type currentPath struct {
 	path string
-	f    os.FileInfo
+	stat *types.Stat
 	//	fullPath string
 }
 
 // doubleWalkDiff walks both directories to create a diff
-func doubleWalkDiff(ctx context.Context, changeFn ChangeFunc, a, b walkerFn) (err error) {
+func doubleWalkDiff(ctx context.Context, changeFn ChangeFunc, a, b walkerFn, filter FilterFunc) (err error) {
 	g, ctx := errgroup.WithContext(ctx)
 
 	var (
@@ -86,14 +86,22 @@ func doubleWalkDiff(ctx context.Context, changeFn ChangeFunc, a, b walkerFn) (er
 				continue
 			}
 
-			var f os.FileInfo
-			k, p := pathChange(f1, f2)
+			var f *types.Stat
+			var f2copy *currentPath
+			if f2 != nil {
+				statCopy := *f2.stat
+				if filter != nil {
+					filter(f2.path, &statCopy)
+				}
+				f2copy = &currentPath{path: f2.path, stat: &statCopy}
+			}
+			k, p := pathChange(f1, f2copy)
 			switch k {
 			case ChangeKindAdd:
 				if rmdir != "" {
 					rmdir = ""
 				}
-				f = f2.f
+				f = f2.stat
 				f2 = nil
 			case ChangeKindDelete:
 				// Check if this file is already removed by being
@@ -101,30 +109,30 @@ func doubleWalkDiff(ctx context.Context, changeFn ChangeFunc, a, b walkerFn) (er
 				if rmdir != "" && strings.HasPrefix(f1.path, rmdir) {
 					f1 = nil
 					continue
-				} else if rmdir == "" && f1.f.IsDir() {
+				} else if rmdir == "" && f1.stat.IsDir() {
 					rmdir = f1.path + string(os.PathSeparator)
 				} else if rmdir != "" {
 					rmdir = ""
 				}
 				f1 = nil
 			case ChangeKindModify:
-				same, err := sameFile(f1, f2)
+				same, err := sameFile(f1, f2copy)
 				if err != nil {
 					return err
 				}
-				if f1.f.IsDir() && !f2.f.IsDir() {
+				if f1.stat.IsDir() && !f2copy.stat.IsDir() {
 					rmdir = f1.path + string(os.PathSeparator)
 				} else if rmdir != "" {
 					rmdir = ""
 				}
-				f = f2.f
+				f = f2.stat
 				f1 = nil
 				f2 = nil
 				if same {
 					continue loop0
 				}
 			}
-			if err := changeFn(k, p, f, nil); err != nil {
+			if err := changeFn(k, p, &StatInfo{f}, nil); err != nil {
 				return err
 			}
 		}
@@ -159,28 +167,17 @@ func pathChange(lower, upper *currentPath) (ChangeKind, string) {
 
 func sameFile(f1, f2 *currentPath) (same bool, retErr error) {
 	// If not a directory also check size, modtime, and content
-	if !f1.f.IsDir() {
-		if f1.f.Size() != f2.f.Size() {
+	if !f1.stat.IsDir() {
+		if f1.stat.Size_ != f2.stat.Size_ {
 			return false, nil
 		}
 
-		t1 := f1.f.ModTime()
-		t2 := f2.f.ModTime()
-		if t1.UnixNano() != t2.UnixNano() {
+		if f1.stat.ModTime != f2.stat.ModTime {
 			return false, nil
 		}
 	}
 
-	ls1, ok := f1.f.Sys().(*types.Stat)
-	if !ok {
-		return false, nil
-	}
-	ls2, ok := f2.f.Sys().(*types.Stat)
-	if !ok {
-		return false, nil
-	}
-
-	return compareStat(ls1, ls2)
+	return compareStat(f1.stat, f2.stat)
 }
 
 // compareStat returns whether the stats are equivalent,

vendor/github.com/tonistiigi/fsutil/diskwriter.go

@@ -194,7 +194,7 @@ func (dw *DiskWriter) HandleChange(kind ChangeKind, p string, fi os.FileInfo, er
 
 	if isRegularFile {
 		if dw.opt.AsyncDataCb != nil {
-			dw.requestAsyncFileData(p, destPath, fi)
+			dw.requestAsyncFileData(p, destPath, fi, &statCopy)
 		}
 	} else {
 		return dw.processChange(kind, p, fi, nil)
@@ -203,7 +203,7 @@ func (dw *DiskWriter) HandleChange(kind ChangeKind, p string, fi os.FileInfo, er
 	return nil
 }
 
-func (dw *DiskWriter) requestAsyncFileData(p, dest string, fi os.FileInfo) {
+func (dw *DiskWriter) requestAsyncFileData(p, dest string, fi os.FileInfo, st *types.Stat) {
 	// todo: limit worker threads
 	dw.eg.Go(func() error {
 		if err := dw.processChange(ChangeKindAdd, p, fi, &lazyFileWriter{
@@ -211,7 +211,7 @@ func (dw *DiskWriter) requestAsyncFileData(p, dest string, fi os.FileInfo) {
 		}); err != nil {
 			return err
 		}
-		return chtimes(dest, fi.ModTime().UnixNano()) // TODO: parent dirs
+		return chtimes(dest, st.ModTime) // TODO: parent dirs
 	})
 }
 

vendor/github.com/tonistiigi/fsutil/go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/sirupsen/logrus v1.0.3 // indirect
 	github.com/stretchr/testify v1.3.0
-	golang.org/x/crypto v0.0.0-20190129210102-0709b304e793 // indirect
+	golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 // indirect
 	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f
 	golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e
 	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect

vendor/github.com/tonistiigi/fsutil/receive.go

@@ -133,7 +133,7 @@ func (r *receiver) run(ctx context.Context) error {
 		if !r.merge {
 			destWalker = GetWalkerFn(r.dest)
 		}
-		err := doubleWalkDiff(ctx, dw.HandleChange, destWalker, w.fill)
+		err := doubleWalkDiff(ctx, dw.HandleChange, destWalker, w.fill, r.filter)
 		if err != nil {
 			return err
 		}
@@ -180,11 +180,11 @@ func (r *receiver) run(ctx context.Context) error {
 					r.mu.Unlock()
 				}
 				i++
-				cp := &currentPath{path: p.Stat.Path, f: &StatInfo{p.Stat}}
-				if err := r.orderValidator.HandleChange(ChangeKindAdd, cp.path, cp.f, nil); err != nil {
+				cp := &currentPath{path: p.Stat.Path, stat: p.Stat}
+				if err := r.orderValidator.HandleChange(ChangeKindAdd, cp.path, &StatInfo{cp.stat}, nil); err != nil {
 					return err
 				}
-				if err := r.hlValidator.HandleChange(ChangeKindAdd, cp.path, cp.f, nil); err != nil {
+				if err := r.hlValidator.HandleChange(ChangeKindAdd, cp.path, &StatInfo{cp.stat}, nil); err != nil {
 					return err
 				}
 				if err := w.update(cp); err != nil {

vendor/github.com/tonistiigi/fsutil/types/stat.go

@@ -0,0 +1,7 @@
+package types
+
+import "os"
+
+func (s Stat) IsDir() bool {
+	return os.FileMode(s.Mode).IsDir()
+}

vendor/golang.org/x/crypto/blowfish/block.go

@@ -0,0 +1,159 @@
+// 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.
+
+package blowfish
+
+// getNextWord returns the next big-endian uint32 value from the byte slice
+// at the given position in a circular manner, updating the position.
+func getNextWord(b []byte, pos *int) uint32 {
+	var w uint32
+	j := *pos
+	for i := 0; i < 4; i++ {
+		w = w<<8 | uint32(b[j])
+		j++
+		if j >= len(b) {
+			j = 0
+		}
+	}
+	*pos = j
+	return w
+}
+
+// ExpandKey performs a key expansion on the given *Cipher. Specifically, it
+// performs the Blowfish algorithm's key schedule which sets up the *Cipher's
+// pi and substitution tables for calls to Encrypt. This is used, primarily,
+// by the bcrypt package to reuse the Blowfish key schedule during its
+// set up. It's unlikely that you need to use this directly.
+func ExpandKey(key []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		// Using inlined getNextWord for performance.
+		var d uint32
+		for k := 0; k < 4; k++ {
+			d = d<<8 | uint32(key[j])
+			j++
+			if j >= len(key) {
+				j = 0
+			}
+		}
+		c.p[i] ^= d
+	}
+
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+	}
+}
+
+// This is similar to ExpandKey, but folds the salt during the key
+// schedule. While ExpandKey is essentially expandKeyWithSalt with an all-zero
+// salt passed in, reusing ExpandKey turns out to be a place of inefficiency
+// and specializing it here is useful.
+func expandKeyWithSalt(key []byte, salt []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		c.p[i] ^= getNextWord(key, &j)
+	}
+
+	j = 0
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+	}
+}
+
+func encryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[0]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[1]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[2]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[3]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[4]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[5]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[6]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[7]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[8]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[9]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[10]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[11]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[12]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[13]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[14]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[15]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[16]
+	xr ^= c.p[17]
+	return xr, xl
+}
+
+func decryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[17]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[16]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[15]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[14]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[13]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[12]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[11]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[10]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[9]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[8]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[7]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[6]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[5]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[4]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[3]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[2]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[1]
+	xr ^= c.p[0]
+	return xr, xl
+}

vendor/golang.org/x/crypto/blowfish/cipher.go

@@ -0,0 +1,99 @@
+// 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.
+
+// Package blowfish implements Bruce Schneier's Blowfish encryption algorithm.
+//
+// Blowfish is a legacy cipher and its short block size makes it vulnerable to
+// birthday bound attacks (see https://sweet32.info). It should only be used
+// where compatibility with legacy systems, not security, is the goal.
+//
+// Deprecated: any new system should use AES (from crypto/aes, if necessary in
+// an AEAD mode like crypto/cipher.NewGCM) or XChaCha20-Poly1305 (from
+// golang.org/x/crypto/chacha20poly1305).
+package blowfish // import "golang.org/x/crypto/blowfish"
+
+// The code is a port of Bruce Schneier's C implementation.
+// See https://www.schneier.com/blowfish.html.
+
+import "strconv"
+
+// The Blowfish block size in bytes.
+const BlockSize = 8
+
+// A Cipher is an instance of Blowfish encryption using a particular key.
+type Cipher struct {
+	p              [18]uint32
+	s0, s1, s2, s3 [256]uint32
+}
+
+type KeySizeError int
+
+func (k KeySizeError) Error() string {
+	return "crypto/blowfish: invalid key size " + strconv.Itoa(int(k))
+}
+
+// NewCipher creates and returns a Cipher.
+// The key argument should be the Blowfish key, from 1 to 56 bytes.
+func NewCipher(key []byte) (*Cipher, error) {
+	var result Cipher
+	if k := len(key); k < 1 || k > 56 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(&result)
+	ExpandKey(key, &result)
+	return &result, nil
+}
+
+// NewSaltedCipher creates a returns a Cipher that folds a salt into its key
+// schedule. For most purposes, NewCipher, instead of NewSaltedCipher, is
+// sufficient and desirable. For bcrypt compatibility, the key can be over 56
+// bytes.
+func NewSaltedCipher(key, salt []byte) (*Cipher, error) {
+	if len(salt) == 0 {
+		return NewCipher(key)
+	}
+	var result Cipher
+	if k := len(key); k < 1 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(&result)
+	expandKeyWithSalt(key, salt, &result)
+	return &result, nil
+}
+
+// BlockSize returns the Blowfish block size, 8 bytes.
+// It is necessary to satisfy the Block interface in the
+// package "crypto/cipher".
+func (c *Cipher) BlockSize() int { return BlockSize }
+
+// Encrypt encrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+// Note that for amounts of data larger than a block,
+// it is not safe to just call Encrypt on successive blocks;
+// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go).
+func (c *Cipher) Encrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = encryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+// Decrypt decrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+func (c *Cipher) Decrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = decryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+func initCipher(c *Cipher) {
+	copy(c.p[0:], p[0:])
+	copy(c.s0[0:], s0[0:])
+	copy(c.s1[0:], s1[0:])
+	copy(c.s2[0:], s2[0:])
+	copy(c.s3[0:], s3[0:])
+}

vendor/golang.org/x/crypto/blowfish/const.go

@@ -0,0 +1,199 @@
+// 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.
+
+// The startup permutation array and substitution boxes.
+// They are the hexadecimal digits of PI; see:
+// https://www.schneier.com/code/constants.txt.
+
+package blowfish
+
+var s0 = [256]uint32{
+	0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96,
+	0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+	0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0x0d95748f, 0x728eb658,
+	0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+	0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e,
+	0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+	0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, 0x55ca396a, 0x2aab10b6,
+	0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+	0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c,
+	0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+	0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d, 0xe98575b1,
+	0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+	0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a,
+	0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+	0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176,
+	0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+	0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706,
+	0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+	0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b,
+	0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+	0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c,
+	0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+	0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, 0x5579c0bd, 0x1a60320a,
+	0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+	0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760,
+	0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+	0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, 0x695b27b0, 0xbbca58c8,
+	0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+	0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33,
+	0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+	0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0, 0xafc725e0,
+	0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+	0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777,
+	0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+	0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705,
+	0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+	0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e,
+	0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+	0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9,
+	0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+	0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f,
+	0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+	0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+}
+
+var s1 = [256]uint32{
+	0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d,
+	0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+	0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65,
+	0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+	0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9,
+	0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+	0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d,
+	0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+	0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc,
+	0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+	0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908,
+	0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+	0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124,
+	0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+	0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908,
+	0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+	0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b,
+	0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+	0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa,
+	0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+	0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d,
+	0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+	0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5,
+	0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+	0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96,
+	0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+	0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca,
+	0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+	0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77,
+	0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+	0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054,
+	0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+	0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea,
+	0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+	0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646,
+	0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+	0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea,
+	0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+	0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e,
+	0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+	0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd,
+	0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+	0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+}
+
+var s2 = [256]uint32{
+	0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7,
+	0xbcf46b2e, 0xd4a20068, 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+	0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af,
+	0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+	0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4,
+	0x0a2c86da, 0xe9b66dfb, 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+	0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec,
+	0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+	0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332,
+	0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+	0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58,
+	0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+	0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22,
+	0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+	0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60,
+	0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+	0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99,
+	0xde720c8c, 0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+	0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74,
+	0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+	0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3,
+	0xb5390f92, 0x690fed0b, 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+	0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979,
+	0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+	0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa,
+	0x3d25bdd8, 0xe2e1c3c9, 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+	0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086,
+	0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+	0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24,
+	0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+	0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84,
+	0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+	0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09,
+	0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+	0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe,
+	0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+	0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0,
+	0x006058aa, 0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+	0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188,
+	0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+	0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8,
+	0xa28514d9, 0x6c51133c, 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+	0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+}
+
+var s3 = [256]uint32{
+	0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742,
+	0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+	0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f, 0xbc946e79,
+	0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+	0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a,
+	0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+	0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1,
+	0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+	0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797,
+	0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+	0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6,
+	0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+	0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba,
+	0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+	0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, 0x7533d928, 0xb155fdf5,
+	0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+	0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce,
+	0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+	0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, 0xb39a460a, 0x6445c0dd,
+	0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+	0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb,
+	0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+	0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08, 0x4eb4e2cc,
+	0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+	0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc,
+	0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+	0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a,
+	0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+	0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a,
+	0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+	0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b,
+	0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+	0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e,
+	0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+	0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, 0xf523f357, 0xa6327623,
+	0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+	0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a,
+	0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+	0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, 0x53113ec0, 0x1640e3d3,
+	0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+	0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c,
+	0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+	0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
+}
+
+var p = [18]uint32{
+	0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0,
+	0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+	0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b,
+}

vendor/golang.org/x/crypto/chacha20/chacha_arm64.go

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.11
-// +build !gccgo,!appengine
+// +build go1.11,!gccgo,!purego
 
 package chacha20
 

vendor/golang.org/x/crypto/chacha20/chacha_arm64.s

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.11
-// +build !gccgo,!appengine
+// +build go1.11,!gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/chacha20/chacha_generic.go

@@ -136,6 +136,33 @@ func quarterRound(a, b, c, d uint32) (uint32, uint32, uint32, uint32) {
 	return a, b, c, d
 }
 
+// SetCounter sets the Cipher counter. The next invocation of XORKeyStream will
+// behave as if (64 * counter) bytes had been encrypted so far.
+//
+// To prevent accidental counter reuse, SetCounter panics if counter is
+// less than the current value.
+func (s *Cipher) SetCounter(counter uint32) {
+	// Internally, s may buffer multiple blocks, which complicates this
+	// implementation slightly. When checking whether the counter has rolled
+	// back, we must use both s.counter and s.len to determine how many blocks
+	// we have already output.
+	outputCounter := s.counter - uint32(s.len)/blockSize
+	if counter < outputCounter {
+		panic("chacha20: SetCounter attempted to rollback counter")
+	}
+
+	// In the general case, we set the new counter value and reset s.len to 0,
+	// causing the next call to XORKeyStream to refill the buffer. However, if
+	// we're advancing within the existing buffer, we can save work by simply
+	// setting s.len.
+	if counter < s.counter {
+		s.len = int(s.counter-counter) * blockSize
+	} else {
+		s.counter = counter
+		s.len = 0
+	}
+}
+
 // XORKeyStream XORs each byte in the given slice with a byte from the
 // cipher's key stream. Dst and src must overlap entirely or not at all.
 //

vendor/golang.org/x/crypto/chacha20/chacha_noasm.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !arm64,!s390x,!ppc64le arm64,!go1.11 gccgo appengine
+// +build !arm64,!s390x,!ppc64le arm64,!go1.11 gccgo purego
 
 package chacha20
 

vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo,!appengine
+// +build !gccgo,!purego
 
 package chacha20
 

vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s

@@ -19,7 +19,7 @@
 // The differences in this and the original implementation are
 // due to the calling conventions and initialization of constants.
 
-// +build !gccgo,!appengine
+// +build !gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/chacha20/chacha_s390x.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo,!appengine
+// +build !gccgo,!purego
 
 package chacha20
 

vendor/golang.org/x/crypto/chacha20/chacha_s390x.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !gccgo,!appengine
+// +build !gccgo,!purego
 
 #include "go_asm.h"
 #include "textflag.h"

vendor/golang.org/x/crypto/poly1305/mac_noasm.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !amd64,!ppc64le gccgo appengine
+// +build !amd64,!ppc64le gccgo purego
 
 package poly1305
 

vendor/golang.org/x/crypto/poly1305/sum_amd64.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64,!gccgo,!appengine
+// +build !gccgo,!purego
 
 package poly1305
 

vendor/golang.org/x/crypto/poly1305/sum_amd64.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64,!gccgo,!appengine
+// +build !gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/poly1305/sum_noasm.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build s390x,!go1.11 !amd64,!s390x,!ppc64le gccgo appengine nacl
+// +build s390x,!go1.11 !amd64,!s390x,!ppc64le gccgo purego
 
 package poly1305
 

vendor/golang.org/x/crypto/poly1305/sum_ppc64le.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build ppc64le,!gccgo,!appengine
+// +build !gccgo,!purego
 
 package poly1305
 

vendor/golang.org/x/crypto/poly1305/sum_ppc64le.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build ppc64le,!gccgo,!appengine
+// +build !gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/poly1305/sum_s390x.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build s390x,go1.11,!gccgo,!appengine
+// +build go1.11,!gccgo,!purego
 
 package poly1305
 

vendor/golang.org/x/crypto/poly1305/sum_s390x.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build s390x,go1.11,!gccgo,!appengine
+// +build go1.11,!gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build s390x,go1.11,!gccgo,!appengine
+// +build go1.11,!gccgo,!purego
 
 #include "textflag.h"
 

vendor/golang.org/x/crypto/ssh/internal/bcrypt_pbkdf/bcrypt_pbkdf.go

@@ -0,0 +1,93 @@
+// 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 bcrypt_pbkdf implements bcrypt_pbkdf(3) from OpenBSD.
+//
+// See https://flak.tedunangst.com/post/bcrypt-pbkdf and
+// https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libutil/bcrypt_pbkdf.c.
+package bcrypt_pbkdf
+
+import (
+	"crypto/sha512"
+	"errors"
+	"golang.org/x/crypto/blowfish"
+)
+
+const blockSize = 32
+
+// Key derives a key from the password, salt and rounds count, returning a
+// []byte of length keyLen that can be used as cryptographic key.
+func Key(password, salt []byte, rounds, keyLen int) ([]byte, error) {
+	if rounds < 1 {
+		return nil, errors.New("bcrypt_pbkdf: number of rounds is too small")
+	}
+	if len(password) == 0 {
+		return nil, errors.New("bcrypt_pbkdf: empty password")
+	}
+	if len(salt) == 0 || len(salt) > 1<<20 {
+		return nil, errors.New("bcrypt_pbkdf: bad salt length")
+	}
+	if keyLen > 1024 {
+		return nil, errors.New("bcrypt_pbkdf: keyLen is too large")
+	}
+
+	numBlocks := (keyLen + blockSize - 1) / blockSize
+	key := make([]byte, numBlocks*blockSize)
+
+	h := sha512.New()
+	h.Write(password)
+	shapass := h.Sum(nil)
+
+	shasalt := make([]byte, 0, sha512.Size)
+	cnt, tmp := make([]byte, 4), make([]byte, blockSize)
+	for block := 1; block <= numBlocks; block++ {
+		h.Reset()
+		h.Write(salt)
+		cnt[0] = byte(block >> 24)
+		cnt[1] = byte(block >> 16)
+		cnt[2] = byte(block >> 8)
+		cnt[3] = byte(block)
+		h.Write(cnt)
+		bcryptHash(tmp, shapass, h.Sum(shasalt))
+
+		out := make([]byte, blockSize)
+		copy(out, tmp)
+		for i := 2; i <= rounds; i++ {
+			h.Reset()
+			h.Write(tmp)
+			bcryptHash(tmp, shapass, h.Sum(shasalt))
+			for j := 0; j < len(out); j++ {
+				out[j] ^= tmp[j]
+			}
+		}
+
+		for i, v := range out {
+			key[i*numBlocks+(block-1)] = v
+		}
+	}
+	return key[:keyLen], nil
+}
+
+var magic = []byte("OxychromaticBlowfishSwatDynamite")
+
+func bcryptHash(out, shapass, shasalt []byte) {
+	c, err := blowfish.NewSaltedCipher(shapass, shasalt)
+	if err != nil {
+		panic(err)
+	}
+	for i := 0; i < 64; i++ {
+		blowfish.ExpandKey(shasalt, c)
+		blowfish.ExpandKey(shapass, c)
+	}
+	copy(out, magic)
+	for i := 0; i < 32; i += 8 {
+		for j := 0; j < 64; j++ {
+			c.Encrypt(out[i:i+8], out[i:i+8])
+		}
+	}
+	// Swap bytes due to different endianness.
+	for i := 0; i < 32; i += 4 {
+		out[i+3], out[i+2], out[i+1], out[i] = out[i], out[i+1], out[i+2], out[i+3]
+	}
+}

vendor/golang.org/x/crypto/ssh/keys.go

@@ -7,6 +7,8 @@ package ssh
 import (
 	"bytes"
 	"crypto"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/dsa"
 	"crypto/ecdsa"
 	"crypto/elliptic"
@@ -25,6 +27,7 @@ import (
 	"strings"
 
 	"golang.org/x/crypto/ed25519"
+	"golang.org/x/crypto/ssh/internal/bcrypt_pbkdf"
 )
 
 // These constants represent the algorithm names for key types supported by this
@@ -559,9 +562,11 @@ func parseED25519(in []byte) (out PublicKey, rest []byte, err error) {
 		return nil, nil, err
 	}
 
-	key := ed25519.PublicKey(w.KeyBytes)
+	if l := len(w.KeyBytes); l != ed25519.PublicKeySize {
+		return nil, nil, fmt.Errorf("invalid size %d for Ed25519 public key", l)
+	}
 
-	return (ed25519PublicKey)(key), w.Rest, nil
+	return ed25519PublicKey(w.KeyBytes), w.Rest, nil
 }
 
 func (k ed25519PublicKey) Marshal() []byte {
@@ -579,9 +584,11 @@ func (k ed25519PublicKey) Verify(b []byte, sig *Signature) error {
 	if sig.Format != k.Type() {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
 	}
+	if l := len(k); l != ed25519.PublicKeySize {
+		return fmt.Errorf("ssh: invalid size %d for Ed25519 public key", l)
+	}
 
-	edKey := (ed25519.PublicKey)(k)
-	if ok := ed25519.Verify(edKey, b, sig.Blob); !ok {
+	if ok := ed25519.Verify(ed25519.PublicKey(k), b, sig.Blob); !ok {
 		return errors.New("ssh: signature did not verify")
 	}
 
@@ -835,6 +842,10 @@ func parseSKEd25519(in []byte) (out PublicKey, rest []byte, err error) {
 		return nil, nil, err
 	}
 
+	if l := len(w.KeyBytes); l != ed25519.PublicKeySize {
+		return nil, nil, fmt.Errorf("invalid size %d for Ed25519 public key", l)
+	}
+
 	key := new(skEd25519PublicKey)
 	key.application = w.Application
 	key.PublicKey = ed25519.PublicKey(w.KeyBytes)
@@ -859,6 +870,9 @@ func (k *skEd25519PublicKey) Verify(data []byte, sig *Signature) error {
 	if sig.Format != k.Type() {
 		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
 	}
+	if l := len(k.PublicKey); l != ed25519.PublicKeySize {
+		return fmt.Errorf("invalid size %d for Ed25519 public key", l)
+	}
 
 	h := sha256.New()
 	h.Write([]byte(k.application))
@@ -895,8 +909,7 @@ func (k *skEd25519PublicKey) Verify(data []byte, sig *Signature) error {
 
 	original := Marshal(blob)
 
-	edKey := (ed25519.PublicKey)(k.PublicKey)
-	if ok := ed25519.Verify(edKey, original, edSig.Signature); !ok {
+	if ok := ed25519.Verify(k.PublicKey, original, edSig.Signature); !ok {
 		return errors.New("ssh: signature did not verify")
 	}
 
@@ -1048,7 +1061,10 @@ func NewPublicKey(key interface{}) (PublicKey, error) {
 	case *dsa.PublicKey:
 		return (*dsaPublicKey)(key), nil
 	case ed25519.PublicKey:
-		return (ed25519PublicKey)(key), nil
+		if l := len(key); l != ed25519.PublicKeySize {
+			return nil, fmt.Errorf("ssh: invalid size %d for Ed25519 public key", l)
+		}
+		return ed25519PublicKey(key), nil
 	default:
 		return nil, fmt.Errorf("ssh: unsupported key type %T", key)
 	}
@@ -1122,21 +1138,25 @@ func ParseRawPrivateKey(pemBytes []byte) (interface{}, error) {
 	case "DSA PRIVATE KEY":
 		return ParseDSAPrivateKey(block.Bytes)
 	case "OPENSSH PRIVATE KEY":
-		return parseOpenSSHPrivateKey(block.Bytes)
+		return parseOpenSSHPrivateKey(block.Bytes, unencryptedOpenSSHKey)
 	default:
 		return nil, fmt.Errorf("ssh: unsupported key type %q", block.Type)
 	}
 }
 
 // ParseRawPrivateKeyWithPassphrase returns a private key decrypted with
-// passphrase from a PEM encoded private key. If wrong passphrase, return
-// x509.IncorrectPasswordError.
+// passphrase from a PEM encoded private key. If the passphrase is wrong, it
+// will return x509.IncorrectPasswordError.
 func ParseRawPrivateKeyWithPassphrase(pemBytes, passphrase []byte) (interface{}, error) {
 	block, _ := pem.Decode(pemBytes)
 	if block == nil {
 		return nil, errors.New("ssh: no key found")
 	}
 
+	if block.Type == "OPENSSH PRIVATE KEY" {
+		return parseOpenSSHPrivateKey(block.Bytes, passphraseProtectedOpenSSHKey(passphrase))
+	}
+
 	if !encryptedBlock(block) || !x509.IsEncryptedPEMBlock(block) {
 		return nil, errors.New("ssh: not an encrypted key")
 	}
@@ -1193,9 +1213,60 @@ func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
 	}, nil
 }
 
-// Implemented based on the documentation at
-// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key
-func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
+func unencryptedOpenSSHKey(cipherName, kdfName, kdfOpts string, privKeyBlock []byte) ([]byte, error) {
+	if kdfName != "none" || cipherName != "none" {
+		return nil, &PassphraseMissingError{}
+	}
+	if kdfOpts != "" {
+		return nil, errors.New("ssh: invalid openssh private key")
+	}
+	return privKeyBlock, nil
+}
+
+func passphraseProtectedOpenSSHKey(passphrase []byte) openSSHDecryptFunc {
+	return func(cipherName, kdfName, kdfOpts string, privKeyBlock []byte) ([]byte, error) {
+		if kdfName == "none" || cipherName == "none" {
+			return nil, errors.New("ssh: key is not password protected")
+		}
+		if kdfName != "bcrypt" {
+			return nil, fmt.Errorf("ssh: unknown KDF %q, only supports %q", kdfName, "bcrypt")
+		}
+
+		var opts struct {
+			Salt   string
+			Rounds uint32
+		}
+		if err := Unmarshal([]byte(kdfOpts), &opts); err != nil {
+			return nil, err
+		}
+
+		k, err := bcrypt_pbkdf.Key(passphrase, []byte(opts.Salt), int(opts.Rounds), 32+16)
+		if err != nil {
+			return nil, err
+		}
+		key, iv := k[:32], k[32:]
+
+		if cipherName != "aes256-ctr" {
+			return nil, fmt.Errorf("ssh: unknown cipher %q, only supports %q", cipherName, "aes256-ctr")
+		}
+		c, err := aes.NewCipher(key)
+		if err != nil {
+			return nil, err
+		}
+		ctr := cipher.NewCTR(c, iv)
+		ctr.XORKeyStream(privKeyBlock, privKeyBlock)
+
+		return privKeyBlock, nil
+	}
+}
+
+type openSSHDecryptFunc func(CipherName, KdfName, KdfOpts string, PrivKeyBlock []byte) ([]byte, error)
+
+// parseOpenSSHPrivateKey parses an OpenSSH private key, using the decrypt
+// function to unwrap the encrypted portion. unencryptedOpenSSHKey can be used
+// as the decrypt function to parse an unencrypted private key. See
+// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key.
+func parseOpenSSHPrivateKey(key []byte, decrypt openSSHDecryptFunc) (crypto.PrivateKey, error) {
 	const magic = "openssh-key-v1\x00"
 	if len(key) < len(magic) || string(key[:len(magic)]) != magic {
 		return nil, errors.New("ssh: invalid openssh private key format")
@@ -1214,9 +1285,22 @@ func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
 	if err := Unmarshal(remaining, &w); err != nil {
 		return nil, err
 	}
+	if w.NumKeys != 1 {
+		// We only support single key files, and so does OpenSSH.
+		// https://github.com/openssh/openssh-portable/blob/4103a3ec7/sshkey.c#L4171
+		return nil, errors.New("ssh: multi-key files are not supported")
+	}
 
-	if w.KdfName != "none" || w.CipherName != "none" {
-		return nil, errors.New("ssh: cannot decode encrypted private keys")
+	privKeyBlock, err := decrypt(w.CipherName, w.KdfName, w.KdfOpts, w.PrivKeyBlock)
+	if err != nil {
+		if err, ok := err.(*PassphraseMissingError); ok {
+			pub, errPub := ParsePublicKey(w.PubKey)
+			if errPub != nil {
+				return nil, fmt.Errorf("ssh: failed to parse embedded public key: %v", errPub)
+			}
+			err.PublicKey = pub
+		}
+		return nil, err
 	}
 
 	pk1 := struct {
@@ -1226,15 +1310,13 @@ func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
 		Rest    []byte `ssh:"rest"`
 	}{}
 
-	if err := Unmarshal(w.PrivKeyBlock, &pk1); err != nil {
-		return nil, err
+	if err := Unmarshal(privKeyBlock, &pk1); err != nil || pk1.Check1 != pk1.Check2 {
+		if w.CipherName != "none" {
+			return nil, x509.IncorrectPasswordError
+		}
+		return nil, errors.New("ssh: malformed OpenSSH key")
 	}
 
-	if pk1.Check1 != pk1.Check2 {
-		return nil, errors.New("ssh: checkint mismatch")
-	}
-
-	// we only handle ed25519 and rsa keys currently
 	switch pk1.Keytype {
 	case KeyAlgoRSA:
 		// https://github.com/openssh/openssh-portable/blob/master/sshkey.c#L2760-L2773
@@ -1253,10 +1335,8 @@ func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
 			return nil, err
 		}
 
-		for i, b := range key.Pad {
-			if int(b) != i+1 {
-				return nil, errors.New("ssh: padding not as expected")
-			}
+		if err := checkOpenSSHKeyPadding(key.Pad); err != nil {
+			return nil, err
 		}
 
 		pk := &rsa.PrivateKey{
@@ -1291,20 +1371,78 @@ func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
 			return nil, errors.New("ssh: private key unexpected length")
 		}
 
-		for i, b := range key.Pad {
-			if int(b) != i+1 {
-				return nil, errors.New("ssh: padding not as expected")
-			}
+		if err := checkOpenSSHKeyPadding(key.Pad); err != nil {
+			return nil, err
 		}
 
 		pk := ed25519.PrivateKey(make([]byte, ed25519.PrivateKeySize))
 		copy(pk, key.Priv)
 		return &pk, nil
+	case KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521:
+		key := struct {
+			Curve   string
+			Pub     []byte
+			D       *big.Int
+			Comment string
+			Pad     []byte `ssh:"rest"`
+		}{}
+
+		if err := Unmarshal(pk1.Rest, &key); err != nil {
+			return nil, err
+		}
+
+		if err := checkOpenSSHKeyPadding(key.Pad); err != nil {
+			return nil, err
+		}
+
+		var curve elliptic.Curve
+		switch key.Curve {
+		case "nistp256":
+			curve = elliptic.P256()
+		case "nistp384":
+			curve = elliptic.P384()
+		case "nistp521":
+			curve = elliptic.P521()
+		default:
+			return nil, errors.New("ssh: unhandled elliptic curve: " + key.Curve)
+		}
+
+		X, Y := elliptic.Unmarshal(curve, key.Pub)
+		if X == nil || Y == nil {
+			return nil, errors.New("ssh: failed to unmarshal public key")
+		}
+
+		if key.D.Cmp(curve.Params().N) >= 0 {
+			return nil, errors.New("ssh: scalar is out of range")
+		}
+
+		x, y := curve.ScalarBaseMult(key.D.Bytes())
+		if x.Cmp(X) != 0 || y.Cmp(Y) != 0 {
+			return nil, errors.New("ssh: public key does not match private key")
+		}
+
+		return &ecdsa.PrivateKey{
+			PublicKey: ecdsa.PublicKey{
+				Curve: curve,
+				X:     X,
+				Y:     Y,
+			},
+			D: key.D,
+		}, nil
 	default:
 		return nil, errors.New("ssh: unhandled key type")
 	}
 }
 
+func checkOpenSSHKeyPadding(pad []byte) error {
+	for i, b := range pad {
+		if int(b) != i+1 {
+			return errors.New("ssh: padding not as expected")
+		}
+	}
+	return nil
+}
+
 // FingerprintLegacyMD5 returns the user presentation of the key's
 // fingerprint as described by RFC 4716 section 4.
 func FingerprintLegacyMD5(pubKey PublicKey) string {

vendor/golang.org/x/crypto/ssh/terminal/terminal.go

@@ -7,6 +7,7 @@ package terminal
 import (
 	"bytes"
 	"io"
+	"runtime"
 	"strconv"
 	"sync"
 	"unicode/utf8"
@@ -939,6 +940,8 @@ func (s *stRingBuffer) NthPreviousEntry(n int) (value string, ok bool) {
 // readPasswordLine reads from reader until it finds \n or io.EOF.
 // The slice returned does not include the \n.
 // readPasswordLine also ignores any \r it finds.
+// Windows uses \r as end of line. So, on Windows, readPasswordLine
+// reads until it finds \r and ignores any \n it finds during processing.
 func readPasswordLine(reader io.Reader) ([]byte, error) {
 	var buf [1]byte
 	var ret []byte
@@ -952,9 +955,15 @@ func readPasswordLine(reader io.Reader) ([]byte, error) {
 					ret = ret[:len(ret)-1]
 				}
 			case '\n':
-				return ret, nil
+				if runtime.GOOS != "windows" {
+					return ret, nil
+				}
+				// otherwise ignore \n
 			case '\r':
-				// remove \r from passwords on Windows
+				if runtime.GOOS == "windows" {
+					return ret, nil
+				}
+				// otherwise ignore \r
 			default:
 				ret = append(ret, buf[0])
 			}

vendor/golang.org/x/text/README.md

@@ -66,7 +66,7 @@ To update a Unicode version run
 
     UNICODE_VERSION=x.x.x go generate
 
-where `x.x.x` must correspond to a directory in http://www.unicode.org/Public/.
+where `x.x.x` must correspond to a directory in https://www.unicode.org/Public/.
 If this version is newer than the version in core it will also update the
 relevant packages there. The idna package in x/net will always be updated.
 
@@ -75,7 +75,7 @@ To update a CLDR version run
     CLDR_VERSION=version go generate
 
 where `version` must correspond to a directory in
-http://www.unicode.org/Public/cldr/.
+https://www.unicode.org/Public/cldr/.
 
 Note that the code gets adapted over time to changes in the data and that
 backwards compatibility is not maintained.
@@ -89,5 +89,5 @@ This repository uses Gerrit for code changes. To learn how to submit changes to
 this repository, see https://golang.org/doc/contribute.html.
 
 The main issue tracker for the image repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/image:" in the
+https://github.com/golang/go/issues. Prefix your issue with "x/text:" in the
 subject line, so it is easy to find.

vendor/golang.org/x/text/go.mod

@@ -0,0 +1,5 @@
+module golang.org/x/text
+
+require golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e
+
+go 1.11

vendor/golang.org/x/text/transform/transform.go

@@ -78,8 +78,8 @@ type SpanningTransformer interface {
 	// considering the error err.
 	//
 	// A nil error means that all input bytes are known to be identical to the
-	// output produced by the Transformer. A nil error can be be returned
-	// regardless of whether atEOF is true. If err is nil, then then n must
+	// output produced by the Transformer. A nil error can be returned
+	// regardless of whether atEOF is true. If err is nil, then n must
 	// equal len(src); the converse is not necessarily true.
 	//
 	// ErrEndOfSpan means that the Transformer output may differ from the
@@ -493,7 +493,7 @@ func (c *chain) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err erro
 	return dstL.n, srcL.p, err
 }
 
-// Deprecated: use runes.Remove instead.
+// Deprecated: Use runes.Remove instead.
 func RemoveFunc(f func(r rune) bool) Transformer {
 	return removeF(f)
 }
@@ -648,7 +648,8 @@ func String(t Transformer, s string) (result string, n int, err error) {
 	// Transform the remaining input, growing dst and src buffers as necessary.
 	for {
 		n := copy(src, s[pSrc:])
-		nDst, nSrc, err := t.Transform(dst[pDst:], src[:n], pSrc+n == len(s))
+		atEOF := pSrc+n == len(s)
+		nDst, nSrc, err := t.Transform(dst[pDst:], src[:n], atEOF)
 		pDst += nDst
 		pSrc += nSrc
 
@@ -659,6 +660,9 @@ func String(t Transformer, s string) (result string, n int, err error) {
 				dst = grow(dst, pDst)
 			}
 		} else if err == ErrShortSrc {
+			if atEOF {
+				return string(dst[:pDst]), pSrc, err
+			}
 			if nSrc == 0 {
 				src = grow(src, 0)
 			}

vendor/golang.org/x/text/unicode/bidi/bidi.go

@@ -6,7 +6,7 @@
 
 // Package bidi contains functionality for bidirectional text support.
 //
-// See http://www.unicode.org/reports/tr9.
+// See https://www.unicode.org/reports/tr9.
 //
 // NOTE: UNDER CONSTRUCTION. This API may change in backwards incompatible ways
 // and without notice.

vendor/golang.org/x/text/unicode/bidi/bracket.go

@@ -12,7 +12,7 @@ import (
 
 // This file contains a port of the reference implementation of the
 // Bidi Parentheses Algorithm:
-// http://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/BidiPBAReference.java
+// https://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/BidiPBAReference.java
 //
 // The implementation in this file covers definitions BD14-BD16 and rule N0
 // of UAX#9.
@@ -246,7 +246,7 @@ func (p *bracketPairer) getStrongTypeN0(index int) Class {
 // assuming the given embedding direction.
 //
 // It returns ON if no strong type is found. If a single strong type is found,
-// it returns this this type. Otherwise it returns the embedding direction.
+// it returns this type. Otherwise it returns the embedding direction.
 //
 // TODO: use separate type for "strong" directionality.
 func (p *bracketPairer) classifyPairContent(loc bracketPair, dirEmbed Class) Class {

vendor/golang.org/x/text/unicode/bidi/core.go

@@ -7,7 +7,7 @@ package bidi
 import "log"
 
 // This implementation is a port based on the reference implementation found at:
-// http://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/
+// https://www.unicode.org/Public/PROGRAMS/BidiReferenceJava/
 //
 // described in Unicode Bidirectional Algorithm (UAX #9).
 //
@@ -480,15 +480,15 @@ func (s *isolatingRunSequence) resolveWeakTypes() {
 
 	// Rule W1.
 	// Changes all NSMs.
-	preceedingCharacterType := s.sos
+	precedingCharacterType := s.sos
 	for i, t := range s.types {
 		if t == NSM {
-			s.types[i] = preceedingCharacterType
+			s.types[i] = precedingCharacterType
 		} else {
 			if t.in(LRI, RLI, FSI, PDI) {
-				preceedingCharacterType = ON
+				precedingCharacterType = ON
 			}
-			preceedingCharacterType = t
+			precedingCharacterType = t
 		}
 	}
 

vendor/golang.org/x/text/unicode/bidi/tables10.0.0.go

@@ -1,6 +1,6 @@
 // Code generated by running "go generate" in golang.org/x/text. DO NOT EDIT.
 
-// +build go1.10
+// +build go1.10,!go1.13
 
 package bidi
 

vendor/golang.org/x/text/unicode/norm/composition.go

@@ -407,7 +407,7 @@ func decomposeHangul(buf []byte, r rune) int {
 
 // decomposeHangul algorithmically decomposes a Hangul rune into
 // its Jamo components.
-// See http://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
+// See https://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
 func (rb *reorderBuffer) decomposeHangul(r rune) {
 	r -= hangulBase
 	x := r % jamoTCount
@@ -420,7 +420,7 @@ func (rb *reorderBuffer) decomposeHangul(r rune) {
 }
 
 // combineHangul algorithmically combines Jamo character components into Hangul.
-// See http://unicode.org/reports/tr15/#Hangul for details on combining Hangul.
+// See https://unicode.org/reports/tr15/#Hangul for details on combining Hangul.
 func (rb *reorderBuffer) combineHangul(s, i, k int) {
 	b := rb.rune[:]
 	bn := rb.nrune
@@ -461,6 +461,10 @@ func (rb *reorderBuffer) combineHangul(s, i, k int) {
 // It should only be used to recompose a single segment, as it will not
 // handle alternations between Hangul and non-Hangul characters correctly.
 func (rb *reorderBuffer) compose() {
+	// Lazily load the map used by the combine func below, but do
+	// it outside of the loop.
+	recompMapOnce.Do(buildRecompMap)
+
 	// UAX #15, section X5 , including Corrigendum #5
 	// "In any character sequence beginning with starter S, a character C is
 	//  blocked from S if and only if there is some character B between S

vendor/golang.org/x/text/unicode/norm/forminfo.go

@@ -4,6 +4,8 @@
 
 package norm
 
+import "encoding/binary"
+
 // This file contains Form-specific logic and wrappers for data in tables.go.
 
 // Rune info is stored in a separate trie per composing form. A composing form
@@ -178,6 +180,17 @@ func (p Properties) TrailCCC() uint8 {
 	return ccc[p.tccc]
 }
 
+func buildRecompMap() {
+	recompMap = make(map[uint32]rune, len(recompMapPacked)/8)
+	var buf [8]byte
+	for i := 0; i < len(recompMapPacked); i += 8 {
+		copy(buf[:], recompMapPacked[i:i+8])
+		key := binary.BigEndian.Uint32(buf[:4])
+		val := binary.BigEndian.Uint32(buf[4:])
+		recompMap[key] = rune(val)
+	}
+}
+
 // Recomposition
 // We use 32-bit keys instead of 64-bit for the two codepoint keys.
 // This clips off the bits of three entries, but we know this will not
@@ -186,8 +199,14 @@ func (p Properties) TrailCCC() uint8 {
 // Note that the recomposition map for NFC and NFKC are identical.
 
 // combine returns the combined rune or 0 if it doesn't exist.
+//
+// The caller is responsible for calling
+// recompMapOnce.Do(buildRecompMap) sometime before this is called.
 func combine(a, b rune) rune {
 	key := uint32(uint16(a))<<16 + uint32(uint16(b))
+	if recompMap == nil {
+		panic("caller error") // see func comment
+	}
 	return recompMap[key]
 }
 

vendor/golang.org/x/text/unicode/norm/iter.go

@@ -128,8 +128,9 @@ func (i *Iter) Next() []byte {
 func nextASCIIBytes(i *Iter) []byte {
 	p := i.p + 1
 	if p >= i.rb.nsrc {
+		p0 := i.p
 		i.setDone()
-		return i.rb.src.bytes[i.p:p]
+		return i.rb.src.bytes[p0:p]
 	}
 	if i.rb.src.bytes[p] < utf8.RuneSelf {
 		p0 := i.p

vendor/golang.org/x/text/unicode/norm/normalize.go

@@ -29,8 +29,8 @@ import (
 // proceed independently on both sides:
 //   f(x) == append(f(x[0:n]), f(x[n:])...)
 //
-// References: http://unicode.org/reports/tr15/ and
-// http://unicode.org/notes/tn5/.
+// References: https://unicode.org/reports/tr15/ and
+// https://unicode.org/notes/tn5/.
 type Form int
 
 const (

vendor/golang.org/x/text/unicode/norm/readwriter.go

@@ -60,8 +60,8 @@ func (w *normWriter) Close() error {
 }
 
 // Writer returns a new writer that implements Write(b)
-// by writing f(b) to w.  The returned writer may use an
-// an internal buffer to maintain state across Write calls.
+// by writing f(b) to w. The returned writer may use an
+// internal buffer to maintain state across Write calls.
 // Calling its Close method writes any buffered data to w.
 func (f Form) Writer(w io.Writer) io.WriteCloser {
 	wr := &normWriter{rb: reorderBuffer{}, w: w}