added stats page and password reset

pkg/cmd/cmd.go

@@ -5,6 +5,7 @@ package cmd
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
 	"git.giftfish.de/ston1th/docstore/pkg/core"
 	"git.giftfish.de/ston1th/docstore/pkg/db"
 	"git.giftfish.de/ston1th/docstore/pkg/log"
@@ -174,9 +175,43 @@ func Run(version string) {
 				return nil
 			},
 		},
+		{
+			Name:  "reset",
+			Usage: "reset the users password and TOTP token (docstore must be stopped)",
+			Flags: defaultFlags(nil),
+			Action: func(c *cli.Context) error {
+				if err := loadConfig(); err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				DB, err := db.NewPlain(config)
+				if err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				u, err := DB.GetUser()
+				if err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				fmt.Println("username:", u.Username)
+				pw, err := password()
+				if err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				if err = DB.UpdateUserPassword(pw); err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				fmt.Println("password:", pw)
+				if err = DB.UpdateUserSecret(""); err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				if err = DB.Close(); err != nil {
+					stdlog.Fatal("reset: ", err)
+				}
+				return nil
+			},
+		},
 		{
 			Name:  "dump",
-			Usage: "create a json dump of all users (docstore needs to be stopped)",
+			Usage: "create a json dump of all users (docstore must be stopped)",
 			Flags: defaultFlags(dumpRestoreFlags()),
 			Action: func(c *cli.Context) error {
 				var (
@@ -192,7 +227,7 @@ func Run(version string) {
 						stdlog.Fatal("dump: ", err)
 					}
 				}
-				DB, err := db.New(config)
+				DB, err := db.NewPlain(config)
 				if err != nil {
 					stdlog.Fatal("dump: ", err)
 				}
@@ -209,7 +244,7 @@ func Run(version string) {
 		},
 		{
 			Name:  "restore",
-			Usage: "restore a json dump (docstore needs to be stopped)",
+			Usage: "restore a json dump (docstore must be stopped)",
 			Flags: defaultFlags(dumpRestoreFlags()),
 			Action: func(c *cli.Context) error {
 				var (
@@ -225,7 +260,7 @@ func Run(version string) {
 						stdlog.Fatal("restore: ", err)
 					}
 				}
-				DB, err := db.New(config)
+				DB, err := db.NewPlain(config)
 				if err != nil {
 					stdlog.Fatal("restore: ", err)
 				}

pkg/cmd/helper.go

@@ -0,0 +1,14 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package cmd
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+)
+
+func password() (string, error) {
+	b := make([]byte, 16)
+	_, err := rand.Read(b)
+	return hex.EncodeToString(b), err
+}

pkg/core/const.go

@@ -10,6 +10,7 @@ const (
 	SearchURI = "/search"
 	LogsURI   = "/logs"
 	TagsURI   = "/tags"
+	StatsURI  = "/stats"
 	UserURI   = "/user"
 
 	RawPrefix    = "/raw"

pkg/core/types.go

@@ -64,6 +64,14 @@ func (p Paths) Len() int           { return len(p) }
 func (p Paths) Swap(i, j int)      { p[i], p[j] = p[j], p[i] }
 func (p Paths) Less(i, j int) bool { return p[i].Name < p[j].Name }
 
+type Stats struct {
+	Goroutines int
+	Alloc      string
+	Sys        string
+	Docs       uint64
+	GoVersion  string
+}
+
 type Config struct {
 	RunDir           string   `json:"run_dir,omitempty"`
 	DataDir          string   `json:"-"`

pkg/db/db.go

@@ -25,9 +25,7 @@ type DB struct {
 }
 
 func New(cfg core.Config) (db *DB, err error) {
-	db = new(DB)
+	db, err = NewPlain(cfg)
-	dbFile := filepath.Join(cfg.RunDir, storeFile)
-	db.store, err = store.NewBoltStore(dbFile, nil)
 	if err != nil {
 		return
 	}
@@ -50,6 +48,13 @@ func New(cfg core.Config) (db *DB, err error) {
 	return
 }
 
+func NewPlain(cfg core.Config) (db *DB, err error) {
+	db = new(DB)
+	dbFile := filepath.Join(cfg.RunDir, storeFile)
+	db.store, err = store.NewBoltStore(dbFile, nil)
+	return
+}
+
 func (db *DB) Dump(w io.Writer) error {
 	return db.store.Dump(w)
 }
@@ -63,5 +68,8 @@ func (db *DB) Close() (err error) {
 	if err != nil {
 		return
 	}
-	return db.Index.Close()
+	if db.Index != nil {
+		return db.Index.Close()
+	}
+	return nil
 }

pkg/fs/helper.go

@@ -27,6 +27,7 @@ var reserved = []string{
 	core.SearchURI,
 	core.LogsURI,
 	core.TagsURI,
+	core.StatsURI,
 	core.UserURI,
 	core.RawPrefix,
 	core.IndexPrefix,

pkg/index/index.go

@@ -66,6 +66,11 @@ func (i *Index) Close() error {
 	return i.i.Close()
 }
 
+func (i *Index) DocCount() (c uint64) {
+	c, _ = i.i.DocCount()
+	return
+}
+
 func (i *Index) Add(text string, tags []string) (id string, err error) {
 	id = newID()
 	for {

pkg/server/handler.go

@@ -174,51 +174,19 @@ func rawHandler(ctx *Context) {
 	http.ServeContent(ctx.Response, ctx.Request, fi.Name(), fi.ModTime(), f)
 }
 
-func scanFile(srv *HTTPServer, path string) (err error) {
-	err = srv.FS.AddScan(path)
-	if err != nil {
-		return
-	}
-	go func() {
-		defer srv.FS.RemoveScan(path)
-		l := srv.Log
-		file, txt, err := srv.Scanner.Scan(path)
-		if err != nil {
-			l.Printf("scanner: %s: %s", path, err)
-			return
-		}
-		tags, err := srv.DB.GetAllRTags()
-		if err != nil {
-			l.Printf("getTags: %s: %s", path, err)
-		}
-		found := tags.Match(txt)
-		id, err := srv.DB.Index.Add(txt, found)
-		if err != nil {
-			l.Printf("index: %s: %s", path, err)
-			return
-		}
-		err = srv.DB.NewFile(id, file, found)
-		if err != nil {
-			l.Printf("newFile: %s: %s", path, err)
-		}
-	}()
-	return
-}
-
 func indexHandler(ctx *Context) {
 	switch ctx.Method() {
 	case "GET":
 		var (
 			err   error
+			ok    bool
 			fpath string
 		)
 		path := ctx.Path()
-		if strings.HasPrefix(path, core.IndexPrefix) {
+		if fpath, ok = hasTrimPrefix(path, core.IndexPrefix); ok {
-			fpath = strings.TrimPrefix(path, core.IndexPrefix)
 			err = scanFile(ctx.Srv, fpath)
 		}
-		if strings.HasPrefix(path, core.RetagPrefix) {
+		if fpath, ok = hasTrimPrefix(path, core.RetagPrefix); ok {
-			fpath = strings.TrimPrefix(path, core.RetagPrefix)
 			if fpath == "" {
 				go func() {
 					err := ctx.Srv.DB.RetagAll()
@@ -859,6 +827,19 @@ func tagsDelHandler(ctx *Context) {
 	}
 }
 
+func statsHandler(ctx *Context) {
+	ctx.Template("statsHandler")
+	ctx.Data = webData{
+		Title:     "Stats",
+		BodyTitle: "Stats",
+	}
+	switch ctx.Method() {
+	case "GET":
+		ctx.Data.Data = getStats(ctx.Srv.DB.Index)
+		ctx.Exec()
+	}
+}
+
 func logoutHandler(ctx *Context) {
 	user := ctx.User()
 	if user == "" {

pkg/server/helper.go

@@ -0,0 +1,68 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package server
+
+import (
+	"runtime"
+	"strconv"
+
+	"git.giftfish.de/ston1th/docstore/pkg/core"
+	bleve "git.giftfish.de/ston1th/docstore/pkg/index"
+)
+
+const div = 1048576
+
+func fmtMem(i uint64) string {
+	return strconv.FormatFloat(float64(i)/div, 'f', 2, 64)
+}
+
+func getStats(i *bleve.Index) *core.Stats {
+	mem := new(runtime.MemStats)
+	runtime.ReadMemStats(mem)
+	return &core.Stats{
+		Goroutines: runtime.NumGoroutine(),
+		Alloc:      fmtMem(mem.Alloc),
+		Sys:        fmtMem(mem.Sys),
+		Docs:       i.DocCount(),
+		GoVersion:  runtime.Version(),
+	}
+}
+
+func scanFile(srv *HTTPServer, path string) (err error) {
+	err = srv.FS.AddScan(path)
+	if err != nil {
+		return
+	}
+	go func() {
+		defer srv.FS.RemoveScan(path)
+		l := srv.Log
+		file, txt, err := srv.Scanner.Scan(path)
+		if err != nil {
+			l.Printf("scanner: %s: %s", path, err)
+			return
+		}
+		tags, err := srv.DB.GetAllRTags()
+		if err != nil {
+			l.Printf("getTags: %s: %s", path, err)
+		}
+		found := tags.Match(txt)
+		id, err := srv.DB.Index.Add(txt, found)
+		if err != nil {
+			l.Printf("index: %s: %s", path, err)
+			return
+		}
+		err = srv.DB.NewFile(id, file, found)
+		if err != nil {
+			l.Printf("newFile: %s: %s", path, err)
+		}
+	}()
+	return
+}
+
+// Parts taken from strings.TrimPrefix
+func hasTrimPrefix(s, prefix string) (string, bool) {
+	if len(s) >= len(prefix) && s[0:len(prefix)] == prefix {
+		return s[len(prefix):], true
+	}
+	return s, false
+}

pkg/server/routes.go

@@ -143,6 +143,13 @@ var routes = append(static, []route{
 				tagsHandler)),
 		[]string{"GET"},
 	},
+	{
+		core.StatsURI,
+		jwtHandler(
+			authHandler(
+				statsHandler)),
+		[]string{"GET"},
+	},
 	{
 		"/tags/new",
 		jwtHandler(

pkg/server/templates.go

@@ -325,6 +325,7 @@ const (
 {{end}}
 <ul class="nav navbar-nav ml-auto">
 {{if .Login}}
+    <li class="nav-item"><a class="nav-link" href="/stats">Stats</a></li>
     <li class="nav-item"><a class="nav-link" href="/user/edit">Profile</a></li>
     <li class="nav-item"><a class="nav-link" href="/logout">Logout</a></li>
 {{else}}
@@ -501,6 +502,39 @@ created:&lt;="2016-09-21"</code></pre>
     </div>
     {{end}}
 </div>
+{{end}}`
+	stats = `{{define "body"}}
+<div class="page-header">
+    <div class="row">
+        <h2>{{.BodyTitle}}</h2>
+    </div>
+</div>
+<div class="row">
+    <table class="table table-stripped table-hover">
+    <tbody>
+        <tr>
+            <td><b>Goroutines</b></td>
+            <td>{{.Data.Goroutines}}</td>
+        </tr>
+        <tr>
+            <td><b>Memory usage</b></td>
+            <td>{{.Data.Alloc}} MiB</td>
+        </tr>
+        <tr>
+            <td><b>Memory allocated</b></td>
+            <td>{{.Data.Sys}} MiB</td>
+        </tr>
+        <tr>
+            <td><b>Documents</b></td>
+            <td>{{.Data.Docs}}</td>
+        </tr>
+        <tr>
+            <td><b>Go Version</b></td>
+            <td>{{.Data.GoVersion}}</td>
+        </tr>
+    </tbody>
+    </table>
+</div>
 {{end}}`
 	tagsDel = `{{define "body"}}
 <div class="row">
@@ -662,7 +696,7 @@ created:&lt;="2016-09-21"</code></pre>
             <form class="form-horizontal" action="/user/edit" method="post">
                 <input type="hidden" name="token" value="{{.Token}}">
                 <div class="form-group">
-                    <label class="col-form-label" for="password">Password</label>
+                    <label class="col-form-label" for="password">New Password</label>
                     <input class="form-control input-sm" type="password" id="password" name="password" autofocus>
                 </div>
                 <div class="form-group">
@@ -946,6 +980,8 @@ func (s *HTTPServer) loadTemplates() {
 	s.templ["tagsNewHandler"] = parse(index, menu, tagsNew)
 	s.templ["tagsEditHandler"] = parse(index, menu, tagsEdit)
 	s.templ["tagsDelHandler"] = parse(index, menu, tagsDel)
+	// stats
+	s.templ["statsHandler"] = parse(index, menu, stats)
 	// logs
 	s.templ["logsHandler"] = parse(index, menu, logs)
 

templates.sh

@@ -101,6 +101,8 @@ func (s *HTTPServer) loadTemplates() {
 	s.templ["tagsNewHandler"] = parse(index, menu, tagsNew)
 	s.templ["tagsEditHandler"] = parse(index, menu, tagsEdit)
 	s.templ["tagsDelHandler"] = parse(index, menu, tagsDel)
+	// stats
+	s.templ["statsHandler"] = parse(index, menu, stats)
 	// logs
 	s.templ["logsHandler"] = parse(index, menu, logs)
 

templates/menu.html

@@ -15,6 +15,7 @@
 {{end}}
 <ul class="nav navbar-nav ml-auto">
 {{if .Login}}
+    <li class="nav-item"><a class="nav-link" href="/stats">Stats</a></li>
     <li class="nav-item"><a class="nav-link" href="/user/edit">Profile</a></li>
     <li class="nav-item"><a class="nav-link" href="/logout">Logout</a></li>
 {{else}}

templates/stats.html

@@ -0,0 +1,33 @@
+{{define "body"}}
+<div class="page-header">
+    <div class="row">
+        <h2>{{.BodyTitle}}</h2>
+    </div>
+</div>
+<div class="row">
+    <table class="table table-stripped table-hover">
+    <tbody>
+        <tr>
+            <td><b>Goroutines</b></td>
+            <td>{{.Data.Goroutines}}</td>
+        </tr>
+        <tr>
+            <td><b>Memory usage</b></td>
+            <td>{{.Data.Alloc}} MiB</td>
+        </tr>
+        <tr>
+            <td><b>Memory allocated</b></td>
+            <td>{{.Data.Sys}} MiB</td>
+        </tr>
+        <tr>
+            <td><b>Documents</b></td>
+            <td>{{.Data.Docs}}</td>
+        </tr>
+        <tr>
+            <td><b>Go Version</b></td>
+            <td>{{.Data.GoVersion}}</td>
+        </tr>
+    </tbody>
+    </table>
+</div>
+{{end}}

templates/userEdit.html

@@ -14,7 +14,7 @@
             <form class="form-horizontal" action="/user/edit" method="post">
                 <input type="hidden" name="token" value="{{.Token}}">
                 <div class="form-group">
-                    <label class="col-form-label" for="password">Password</label>
+                    <label class="col-form-label" for="password">New Password</label>
                     <input class="form-control input-sm" type="password" id="password" name="password" autofocus>
                 </div>
                 <div class="form-group">

vendor/git.giftfish.de/ston1th/authdav/LICENSE

@@ -0,0 +1,24 @@
+Copyright (C) 2019 Marius Schellenberger
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * The names of the authors and/or contributors may not be used to
+      endorse or promote products derived from this software without
+      specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL ston1th BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/git.giftfish.de/ston1th/authdav/README.md

@@ -0,0 +1,59 @@
+# authdav - a x/net/webdav wrapper
+
+Wrappers:
+* HTTP Basic Auth wrapper for `webdav.Handler`
+* write only once FileSystem wrapper for `webdav.FileSystem`
+
+## Usage
+
+### HTTP Basic Auth
+
+```
+package main
+
+import (
+	"git.giftfish.de/ston1th/authdav"
+	"golang.org/x/net/webdav"
+	"log"
+	"net/http"
+)
+
+type exampleAuthenticator struct {}
+
+func (exampleAuthenticator) BasicAuth(user, password string) bool {
+	if user == "user" && password == "password" {
+		return true
+	}
+	return false
+}
+
+func main() {
+	auth := exampleAuthenticator{}
+	handler := authdav.NewWebdavBasicAuth("", webdav.Dir("."), nil, nil, auth, "webdav with basic auth")
+	log.Fatal(http.ListenAndServe(":8080", handler))
+}
+```
+
+### Write Only
+
+```
+package main
+
+import (
+	"git.giftfish.de/ston1th/authdav"
+	"golang.org/x/net/webdav"
+	"log"
+	"net/http"
+)
+
+func main() {
+	fs := authdav.NewWriteOnlyOnceFileSystem(webdav.Dir("."))
+	handler := &webdav.Handler{
+		Prefix:     "",
+		FileSystem: fs,
+		LockSystem: webdav.NewMemLS(),
+		Logger:     nil,
+	}
+	log.Fatal(http.ListenAndServe(":8080", handler))
+}
+```

vendor/git.giftfish.de/ston1th/authdav/authdav.go

@@ -0,0 +1,57 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package authdav
+
+import (
+	"golang.org/x/net/webdav"
+	"net/http"
+)
+
+// DefaultRealm is the HTTP Basic Auth default realm
+const DefaultRealm = "WebDav"
+
+// Authenticator is the interface for Webdav HTTP Basic Auth
+type Authenticator interface {
+	BasicAuth(username string, password string) bool
+}
+
+// WebdavBasicAuth is a WebDav wrapper for HTTP Basic Auth and implements the http.Handler interface
+type WebdavBasicAuth struct {
+	dav   *webdav.Handler
+	auth  Authenticator
+	realm string
+}
+
+// NewWebdavBasicAuth returns a new WebdavBasicAuth wrapper
+// prefix can be empty
+// ls and log can be nil
+// an empty authenticator disables HTTP Basic Auth
+// realm can be empty and defaults to authdav.DefaultRealm
+func NewWebdavBasicAuth(prefix string, fs webdav.FileSystem, ls webdav.LockSystem, log func(*http.Request, error), auth Authenticator, realm string) *WebdavBasicAuth {
+	if ls == nil {
+		ls = webdav.NewMemLS()
+	}
+	if realm == "" {
+		realm = DefaultRealm
+	}
+	dav := &webdav.Handler{
+		Prefix:     prefix,
+		FileSystem: fs,
+		LockSystem: ls,
+		Logger:     log,
+	}
+	return &WebdavBasicAuth{dav, auth, `Basic realm="` + realm + `"`}
+}
+
+func (h *WebdavBasicAuth) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if h.auth != nil {
+		u, p, ok := r.BasicAuth()
+		if !ok || !h.auth.BasicAuth(u, p) {
+			w.Header().Set("WWW-Authenticate", h.realm)
+			w.WriteHeader(http.StatusUnauthorized)
+			w.Write([]byte("Unauthorised\n"))
+			return
+		}
+	}
+	h.dav.ServeHTTP(w, r)
+}

vendor/git.giftfish.de/ston1th/authdav/file.go

@@ -0,0 +1,46 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package authdav
+
+import (
+	"golang.org/x/net/webdav"
+	"io"
+	"os"
+)
+
+// File is a wrapper for webdav.File providing write only functionality
+type File struct {
+	f webdav.File
+}
+
+func (f *File) Close() error {
+	return f.f.Close()
+}
+
+func (f *File) Read(p []byte) (int, error) {
+	return 0, io.EOF
+}
+
+func (f *File) Seek(offset int64, whence int) (int64, error) {
+	return 0, nil
+}
+
+func (f *File) Readdir(count int) (fi []os.FileInfo, err error) {
+	ffi, err := f.f.Readdir(count)
+	for _, f := range ffi {
+		fi = append(fi, &FileInfo{f})
+	}
+	return
+}
+
+func (f *File) Stat() (os.FileInfo, error) {
+	fi, err := f.f.Stat()
+	if err != nil {
+		return nil, err
+	}
+	return &FileInfo{fi}, nil
+}
+
+func (f *File) Write(p []byte) (int, error) {
+	return f.f.Write(p)
+}

vendor/git.giftfish.de/ston1th/authdav/fileinfo.go

@@ -0,0 +1,44 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package authdav
+
+import (
+	"os"
+	"time"
+)
+
+// FileInfo is a wrapper for os.FileInfo which always raturns a zero length for regular files
+type FileInfo struct {
+	fi os.FileInfo
+}
+
+func (fi *FileInfo) Name() string {
+	return fi.fi.Name()
+}
+
+func (fi *FileInfo) RealSize() int64 {
+	return fi.fi.Size()
+}
+
+func (fi *FileInfo) Size() int64 {
+	if fi.Mode().IsRegular() {
+		return 0
+	}
+	return fi.fi.Size()
+}
+
+func (fi *FileInfo) Mode() os.FileMode {
+	return fi.fi.Mode()
+}
+
+func (fi *FileInfo) ModTime() time.Time {
+	return fi.fi.ModTime()
+}
+
+func (fi *FileInfo) IsDir() bool {
+	return fi.fi.IsDir()
+}
+
+func (fi *FileInfo) Sys() interface{} {
+	return fi.fi.Sys()
+}

vendor/git.giftfish.de/ston1th/authdav/filesystem.go

@@ -0,0 +1,79 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package authdav
+
+import (
+	"context"
+	"errors"
+	"golang.org/x/net/webdav"
+	"os"
+)
+
+// ErrWonly indicates forbidden operation
+var ErrWonly = errors.New("authdav: only file write once operations permitted")
+
+const writeFlag = os.O_RDWR | os.O_CREATE | os.O_TRUNC
+
+// WriteOnlyOnceFileSystem is a file write only wrapper for a webdav.FileSystem
+type WriteOnlyOnceFileSystem struct {
+	Filters []Filter
+	fs      webdav.FileSystem
+}
+
+// NewWriteOnlyOnceFileSystem returns a new WriteOnlyOnceFileSystem wrapping a webdav.FileSystem
+func NewWriteOnlyOnceFileSystem(fs webdav.FileSystem) *WriteOnlyOnceFileSystem {
+	return &WriteOnlyOnceFileSystem{fs: fs}
+}
+
+// Mkdir is not permitted
+func (fs *WriteOnlyOnceFileSystem) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
+	return ErrWonly
+}
+
+// OpenFile allows write only once operations
+func (fs *WriteOnlyOnceFileSystem) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (webdav.File, error) {
+	fi, err := fs.Stat(ctx, name)
+	if err == nil && fi.Mode().IsRegular() {
+		f, ok := fi.(*FileInfo)
+		if ok && flag == writeFlag && f.RealSize() > 0 {
+			return nil, ErrWonly
+		}
+	}
+	for _, filter := range fs.Filters {
+		err = filter.Filter(name)
+		if err != nil {
+			return nil, err
+		}
+	}
+	f, err := fs.fs.OpenFile(ctx, name, flag, perm)
+	if err != nil {
+		return nil, err
+	}
+	return &File{f}, nil
+}
+
+// RemoveAll only permits deleting empty files
+func (fs *WriteOnlyOnceFileSystem) RemoveAll(ctx context.Context, name string) error {
+	fi, err := fs.fs.Stat(ctx, name)
+	if err != nil {
+		return err
+	}
+	if fi.Mode().IsRegular() && fi.Size() == 0 {
+		return fs.fs.RemoveAll(ctx, name)
+	}
+	return ErrWonly
+}
+
+// Rename is not permitted
+func (fs *WriteOnlyOnceFileSystem) Rename(ctx context.Context, oldName, newName string) error {
+	return ErrWonly
+}
+
+// Stat returns os.FileInfo wrapped in FileInfo
+func (fs *WriteOnlyOnceFileSystem) Stat(ctx context.Context, name string) (os.FileInfo, error) {
+	fi, err := fs.fs.Stat(ctx, name)
+	if err != nil {
+		return nil, err
+	}
+	return &FileInfo{fi}, nil
+}

vendor/git.giftfish.de/ston1th/authdav/filter.go

@@ -0,0 +1,50 @@
+// Copyright (C) 2019 Marius Schellenberger
+
+package authdav
+
+import (
+	"errors"
+	"path/filepath"
+	"strings"
+)
+
+// Matcher is the matcher function type
+type Matcher func(path string) bool
+
+// Filter defines an interface to filter paths or files
+type Filter interface {
+	Filter(path string) error
+}
+
+// ErrMacOSFilter error returned by the MacOSFilter
+var ErrMacOSFilter = errors.New("authdav: MacOS filter: access denied")
+
+// MacOSFilter implements a filter for MacOS specific files
+type MacOSFilter struct {
+	match []Matcher
+}
+
+// NewMacOSFilter returns a new MacOSFilter
+func NewMacOSFilter() *MacOSFilter {
+	return &MacOSFilter{
+		match: []Matcher{
+			func(p string) bool {
+				return p == ".DS_Store"
+			},
+			func(p string) bool {
+				return strings.HasPrefix(p, "._")
+			},
+		},
+	}
+}
+
+// Filter implements the Filter interface
+func (f *MacOSFilter) Filter(path string) error {
+	_, file := filepath.Split(path)
+	for _, m := range f.match {
+		if m(file) {
+			return ErrMacOSFilter
+		}
+	}
+	return nil
+}

vendor/git.giftfish.de/ston1th/authdav/go.mod

@@ -0,0 +1,5 @@
+module git.giftfish.de/ston1th/authdav
+
+go 1.12
+
+require golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297

vendor/git.giftfish.de/ston1th/authdav/go.sum

@@ -0,0 +1,5 @@
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
+golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

vendor/github.com/blevesearch/segment/maketesttables.go

@@ -1,219 +0,0 @@
-//  Copyright (c) 2015 Couchbase, Inc.
-//  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
-//  except in compliance with the License. You may obtain a copy of the License at
-//    http://www.apache.org/licenses/LICENSE-2.0
-//  Unless required by applicable law or agreed to in writing, software distributed under the
-//  License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
-//  either express or implied. See the License for the specific language governing permissions
-//  and limitations under the License.
-
-// +build ignore
-
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"flag"
-	"fmt"
-	"io"
-	"log"
-	"net/http"
-	"os"
-	"os/exec"
-	"strconv"
-	"strings"
-	"unicode"
-)
-
-var url = flag.String("url",
-	"http://www.unicode.org/Public/"+unicode.Version+"/ucd/auxiliary/",
-	"URL of Unicode database directory")
-var verbose = flag.Bool("verbose",
-	false,
-	"write data to stdout as it is parsed")
-var localFiles = flag.Bool("local",
-	false,
-	"data files have been copied to the current directory; for debugging only")
-
-var outputFile = flag.String("output",
-	"",
-	"output file for generated tables; default stdout")
-
-var output *bufio.Writer
-
-func main() {
-	flag.Parse()
-	setupOutput()
-
-	graphemeTests := make([]test, 0)
-	graphemeComments := make([]string, 0)
-	graphemeTests, graphemeComments = loadUnicodeData("GraphemeBreakTest.txt", graphemeTests, graphemeComments)
-	wordTests := make([]test, 0)
-	wordComments := make([]string, 0)
-	wordTests, wordComments = loadUnicodeData("WordBreakTest.txt", wordTests, wordComments)
-	sentenceTests := make([]test, 0)
-	sentenceComments := make([]string, 0)
-	sentenceTests, sentenceComments = loadUnicodeData("SentenceBreakTest.txt", sentenceTests, sentenceComments)
-
-	fmt.Fprintf(output, fileHeader, *url)
-	generateTestTables("Grapheme", graphemeTests, graphemeComments)
-	generateTestTables("Word", wordTests, wordComments)
-	generateTestTables("Sentence", sentenceTests, sentenceComments)
-
-	flushOutput()
-}
-
-// WordBreakProperty.txt has the form:
-// 05F0..05F2    ; Hebrew_Letter # Lo   [3] HEBREW LIGATURE YIDDISH DOUBLE VAV..HEBREW LIGATURE YIDDISH DOUBLE YOD
-// FB1D          ; Hebrew_Letter # Lo       HEBREW LETTER YOD WITH HIRIQ
-func openReader(file string) (input io.ReadCloser) {
-	if *localFiles {
-		f, err := os.Open(file)
-		if err != nil {
-			log.Fatal(err)
-		}
-		input = f
-	} else {
-		path := *url + file
-		resp, err := http.Get(path)
-		if err != nil {
-			log.Fatal(err)
-		}
-		if resp.StatusCode != 200 {
-			log.Fatal("bad GET status for "+file, resp.Status)
-		}
-		input = resp.Body
-	}
-	return
-}
-
-func loadUnicodeData(filename string, tests []test, comments []string) ([]test, []string) {
-	f := openReader(filename)
-	defer f.Close()
-	bufioReader := bufio.NewReader(f)
-	line, err := bufioReader.ReadString('\n')
-	for err == nil {
-		tests, comments = parseLine(line, tests, comments)
-		line, err = bufioReader.ReadString('\n')
-	}
-	// if the err was EOF still need to process last value
-	if err == io.EOF {
-		tests, comments = parseLine(line, tests, comments)
-	}
-	return tests, comments
-}
-
-const comment = "#"
-const brk = "÷"
-const nbrk = "×"
-
-type test [][]byte
-
-func parseLine(line string, tests []test, comments []string) ([]test, []string) {
-	if strings.HasPrefix(line, comment) {
-		return tests, comments
-	}
-	line = strings.TrimSpace(line)
-	if len(line) == 0 {
-		return tests, comments
-	}
-	commentStart := strings.Index(line, comment)
-	comment := strings.TrimSpace(line[commentStart+1:])
-	if commentStart > 0 {
-		line = line[0:commentStart]
-	}
-	pieces := strings.Split(line, brk)
-	t := make(test, 0)
-	for _, piece := range pieces {
-		piece = strings.TrimSpace(piece)
-		if len(piece) > 0 {
-			codePoints := strings.Split(piece, nbrk)
-			word := ""
-			for _, codePoint := range codePoints {
-				codePoint = strings.TrimSpace(codePoint)
-				r, err := strconv.ParseInt(codePoint, 16, 64)
-				if err != nil {
-					log.Printf("err: %v for '%s'", err, string(r))
-					return tests, comments
-				}
-
-				word += string(r)
-			}
-			t = append(t, []byte(word))
-		}
-	}
-	tests = append(tests, t)
-	comments = append(comments, comment)
-	return tests, comments
-}
-
-func generateTestTables(prefix string, tests []test, comments []string) {
-	fmt.Fprintf(output, testHeader, prefix)
-	for i, t := range tests {
-		fmt.Fprintf(output, "\t\t{\n")
-		fmt.Fprintf(output, "\t\t\tinput: %#v,\n", bytes.Join(t, []byte{}))
-		fmt.Fprintf(output, "\t\t\toutput: %s,\n", generateTest(t))
-		fmt.Fprintf(output, "\t\t\tcomment: `%s`,\n", comments[i])
-		fmt.Fprintf(output, "\t\t},\n")
-	}
-	fmt.Fprintf(output, "}\n")
-}
-
-func generateTest(t test) string {
-	rv := "[][]byte{"
-	for _, te := range t {
-		rv += fmt.Sprintf("%#v,", te)
-	}
-	rv += "}"
-	return rv
-}
-
-const fileHeader = `// Generated by running
-//      maketesttables --url=%s
-// DO NOT EDIT
-
-package segment
-`
-
-const testHeader = `var unicode%sTests = []struct {
-		input  []byte
-		output [][]byte
-		comment string
-	}{
-`
-
-func setupOutput() {
-	output = bufio.NewWriter(startGofmt())
-}
-
-// startGofmt connects output to a gofmt process if -output is set.
-func startGofmt() io.Writer {
-	if *outputFile == "" {
-		return os.Stdout
-	}
-	stdout, err := os.Create(*outputFile)
-	if err != nil {
-		log.Fatal(err)
-	}
-	// Pipe output to gofmt.
-	gofmt := exec.Command("gofmt")
-	fd, err := gofmt.StdinPipe()
-	if err != nil {
-		log.Fatal(err)
-	}
-	gofmt.Stdout = stdout
-	gofmt.Stderr = os.Stderr
-	err = gofmt.Start()
-	if err != nil {
-		log.Fatal(err)
-	}
-	return fd
-}
-
-func flushOutput() {
-	err := output.Flush()
-	if err != nil {
-		log.Fatal(err)
-	}
-}

vendor/golang.org/x/net/AUTHORS

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

vendor/golang.org/x/net/CONTRIBUTORS

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

vendor/golang.org/x/net/LICENSE

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

vendor/golang.org/x/net/PATENTS

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

vendor/golang.org/x/net/webdav/file.go

@@ -0,0 +1,795 @@
+// 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 webdav
+
+import (
+	"context"
+	"encoding/xml"
+	"io"
+	"net/http"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+)
+
+// slashClean is equivalent to but slightly more efficient than
+// path.Clean("/" + name).
+func slashClean(name string) string {
+	if name == "" || name[0] != '/' {
+		name = "/" + name
+	}
+	return path.Clean(name)
+}
+
+// A FileSystem implements access to a collection of named files. The elements
+// in a file path are separated by slash ('/', U+002F) characters, regardless
+// of host operating system convention.
+//
+// Each method has the same semantics as the os package's function of the same
+// name.
+//
+// Note that the os.Rename documentation says that "OS-specific restrictions
+// might apply". In particular, whether or not renaming a file or directory
+// overwriting another existing file or directory is an error is OS-dependent.
+type FileSystem interface {
+	Mkdir(ctx context.Context, name string, perm os.FileMode) error
+	OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error)
+	RemoveAll(ctx context.Context, name string) error
+	Rename(ctx context.Context, oldName, newName string) error
+	Stat(ctx context.Context, name string) (os.FileInfo, error)
+}
+
+// A File is returned by a FileSystem's OpenFile method and can be served by a
+// Handler.
+//
+// A File may optionally implement the DeadPropsHolder interface, if it can
+// load and save dead properties.
+type File interface {
+	http.File
+	io.Writer
+}
+
+// A Dir implements FileSystem using the native file system restricted to a
+// specific directory tree.
+//
+// While the FileSystem.OpenFile method takes '/'-separated paths, a Dir's
+// string value is a filename on the native file system, not a URL, so it is
+// separated by filepath.Separator, which isn't necessarily '/'.
+//
+// An empty Dir is treated as ".".
+type Dir string
+
+func (d Dir) resolve(name string) string {
+	// This implementation is based on Dir.Open's code in the standard net/http package.
+	if filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0 ||
+		strings.Contains(name, "\x00") {
+		return ""
+	}
+	dir := string(d)
+	if dir == "" {
+		dir = "."
+	}
+	return filepath.Join(dir, filepath.FromSlash(slashClean(name)))
+}
+
+func (d Dir) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
+	if name = d.resolve(name); name == "" {
+		return os.ErrNotExist
+	}
+	return os.Mkdir(name, perm)
+}
+
+func (d Dir) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error) {
+	if name = d.resolve(name); name == "" {
+		return nil, os.ErrNotExist
+	}
+	f, err := os.OpenFile(name, flag, perm)
+	if err != nil {
+		return nil, err
+	}
+	return f, nil
+}
+
+func (d Dir) RemoveAll(ctx context.Context, name string) error {
+	if name = d.resolve(name); name == "" {
+		return os.ErrNotExist
+	}
+	if name == filepath.Clean(string(d)) {
+		// Prohibit removing the virtual root directory.
+		return os.ErrInvalid
+	}
+	return os.RemoveAll(name)
+}
+
+func (d Dir) Rename(ctx context.Context, oldName, newName string) error {
+	if oldName = d.resolve(oldName); oldName == "" {
+		return os.ErrNotExist
+	}
+	if newName = d.resolve(newName); newName == "" {
+		return os.ErrNotExist
+	}
+	if root := filepath.Clean(string(d)); root == oldName || root == newName {
+		// Prohibit renaming from or to the virtual root directory.
+		return os.ErrInvalid
+	}
+	return os.Rename(oldName, newName)
+}
+
+func (d Dir) Stat(ctx context.Context, name string) (os.FileInfo, error) {
+	if name = d.resolve(name); name == "" {
+		return nil, os.ErrNotExist
+	}
+	return os.Stat(name)
+}
+
+// NewMemFS returns a new in-memory FileSystem implementation.
+func NewMemFS() FileSystem {
+	return &memFS{
+		root: memFSNode{
+			children: make(map[string]*memFSNode),
+			mode:     0660 | os.ModeDir,
+			modTime:  time.Now(),
+		},
+	}
+}
+
+// A memFS implements FileSystem, storing all metadata and actual file data
+// in-memory. No limits on filesystem size are used, so it is not recommended
+// this be used where the clients are untrusted.
+//
+// Concurrent access is permitted. The tree structure is protected by a mutex,
+// and each node's contents and metadata are protected by a per-node mutex.
+//
+// TODO: Enforce file permissions.
+type memFS struct {
+	mu   sync.Mutex
+	root memFSNode
+}
+
+// TODO: clean up and rationalize the walk/find code.
+
+// walk walks the directory tree for the fullname, calling f at each step. If f
+// returns an error, the walk will be aborted and return that same error.
+//
+// dir is the directory at that step, frag is the name fragment, and final is
+// whether it is the final step. For example, walking "/foo/bar/x" will result
+// in 3 calls to f:
+//   - "/", "foo", false
+//   - "/foo/", "bar", false
+//   - "/foo/bar/", "x", true
+// The frag argument will be empty only if dir is the root node and the walk
+// ends at that root node.
+func (fs *memFS) walk(op, fullname string, f func(dir *memFSNode, frag string, final bool) error) error {
+	original := fullname
+	fullname = slashClean(fullname)
+
+	// Strip any leading "/"s to make fullname a relative path, as the walk
+	// starts at fs.root.
+	if fullname[0] == '/' {
+		fullname = fullname[1:]
+	}
+	dir := &fs.root
+
+	for {
+		frag, remaining := fullname, ""
+		i := strings.IndexRune(fullname, '/')
+		final := i < 0
+		if !final {
+			frag, remaining = fullname[:i], fullname[i+1:]
+		}
+		if frag == "" && dir != &fs.root {
+			panic("webdav: empty path fragment for a clean path")
+		}
+		if err := f(dir, frag, final); err != nil {
+			return &os.PathError{
+				Op:   op,
+				Path: original,
+				Err:  err,
+			}
+		}
+		if final {
+			break
+		}
+		child := dir.children[frag]
+		if child == nil {
+			return &os.PathError{
+				Op:   op,
+				Path: original,
+				Err:  os.ErrNotExist,
+			}
+		}
+		if !child.mode.IsDir() {
+			return &os.PathError{
+				Op:   op,
+				Path: original,
+				Err:  os.ErrInvalid,
+			}
+		}
+		dir, fullname = child, remaining
+	}
+	return nil
+}
+
+// find returns the parent of the named node and the relative name fragment
+// from the parent to the child. For example, if finding "/foo/bar/baz" then
+// parent will be the node for "/foo/bar" and frag will be "baz".
+//
+// If the fullname names the root node, then parent, frag and err will be zero.
+//
+// find returns an error if the parent does not already exist or the parent
+// isn't a directory, but it will not return an error per se if the child does
+// not already exist. The error returned is either nil or an *os.PathError
+// whose Op is op.
+func (fs *memFS) find(op, fullname string) (parent *memFSNode, frag string, err error) {
+	err = fs.walk(op, fullname, func(parent0 *memFSNode, frag0 string, final bool) error {
+		if !final {
+			return nil
+		}
+		if frag0 != "" {
+			parent, frag = parent0, frag0
+		}
+		return nil
+	})
+	return parent, frag, err
+}
+
+func (fs *memFS) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	dir, frag, err := fs.find("mkdir", name)
+	if err != nil {
+		return err
+	}
+	if dir == nil {
+		// We can't create the root.
+		return os.ErrInvalid
+	}
+	if _, ok := dir.children[frag]; ok {
+		return os.ErrExist
+	}
+	dir.children[frag] = &memFSNode{
+		children: make(map[string]*memFSNode),
+		mode:     perm.Perm() | os.ModeDir,
+		modTime:  time.Now(),
+	}
+	return nil
+}
+
+func (fs *memFS) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (File, error) {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	dir, frag, err := fs.find("open", name)
+	if err != nil {
+		return nil, err
+	}
+	var n *memFSNode
+	if dir == nil {
+		// We're opening the root.
+		if flag&(os.O_WRONLY|os.O_RDWR) != 0 {
+			return nil, os.ErrPermission
+		}
+		n, frag = &fs.root, "/"
+
+	} else {
+		n = dir.children[frag]
+		if flag&(os.O_SYNC|os.O_APPEND) != 0 {
+			// memFile doesn't support these flags yet.
+			return nil, os.ErrInvalid
+		}
+		if flag&os.O_CREATE != 0 {
+			if flag&os.O_EXCL != 0 && n != nil {
+				return nil, os.ErrExist
+			}
+			if n == nil {
+				n = &memFSNode{
+					mode: perm.Perm(),
+				}
+				dir.children[frag] = n
+			}
+		}
+		if n == nil {
+			return nil, os.ErrNotExist
+		}
+		if flag&(os.O_WRONLY|os.O_RDWR) != 0 && flag&os.O_TRUNC != 0 {
+			n.mu.Lock()
+			n.data = nil
+			n.mu.Unlock()
+		}
+	}
+
+	children := make([]os.FileInfo, 0, len(n.children))
+	for cName, c := range n.children {
+		children = append(children, c.stat(cName))
+	}
+	return &memFile{
+		n:                n,
+		nameSnapshot:     frag,
+		childrenSnapshot: children,
+	}, nil
+}
+
+func (fs *memFS) RemoveAll(ctx context.Context, name string) error {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	dir, frag, err := fs.find("remove", name)
+	if err != nil {
+		return err
+	}
+	if dir == nil {
+		// We can't remove the root.
+		return os.ErrInvalid
+	}
+	delete(dir.children, frag)
+	return nil
+}
+
+func (fs *memFS) Rename(ctx context.Context, oldName, newName string) error {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	oldName = slashClean(oldName)
+	newName = slashClean(newName)
+	if oldName == newName {
+		return nil
+	}
+	if strings.HasPrefix(newName, oldName+"/") {
+		// We can't rename oldName to be a sub-directory of itself.
+		return os.ErrInvalid
+	}
+
+	oDir, oFrag, err := fs.find("rename", oldName)
+	if err != nil {
+		return err
+	}
+	if oDir == nil {
+		// We can't rename from the root.
+		return os.ErrInvalid
+	}
+
+	nDir, nFrag, err := fs.find("rename", newName)
+	if err != nil {
+		return err
+	}
+	if nDir == nil {
+		// We can't rename to the root.
+		return os.ErrInvalid
+	}
+
+	oNode, ok := oDir.children[oFrag]
+	if !ok {
+		return os.ErrNotExist
+	}
+	if oNode.children != nil {
+		if nNode, ok := nDir.children[nFrag]; ok {
+			if nNode.children == nil {
+				return errNotADirectory
+			}
+			if len(nNode.children) != 0 {
+				return errDirectoryNotEmpty
+			}
+		}
+	}
+	delete(oDir.children, oFrag)
+	nDir.children[nFrag] = oNode
+	return nil
+}
+
+func (fs *memFS) Stat(ctx context.Context, name string) (os.FileInfo, error) {
+	fs.mu.Lock()
+	defer fs.mu.Unlock()
+
+	dir, frag, err := fs.find("stat", name)
+	if err != nil {
+		return nil, err
+	}
+	if dir == nil {
+		// We're stat'ting the root.
+		return fs.root.stat("/"), nil
+	}
+	if n, ok := dir.children[frag]; ok {
+		return n.stat(path.Base(name)), nil
+	}
+	return nil, os.ErrNotExist
+}
+
+// A memFSNode represents a single entry in the in-memory filesystem and also
+// implements os.FileInfo.
+type memFSNode struct {
+	// children is protected by memFS.mu.
+	children map[string]*memFSNode
+
+	mu        sync.Mutex
+	data      []byte
+	mode      os.FileMode
+	modTime   time.Time
+	deadProps map[xml.Name]Property
+}
+
+func (n *memFSNode) stat(name string) *memFileInfo {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+	return &memFileInfo{
+		name:    name,
+		size:    int64(len(n.data)),
+		mode:    n.mode,
+		modTime: n.modTime,
+	}
+}
+
+func (n *memFSNode) DeadProps() (map[xml.Name]Property, error) {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+	if len(n.deadProps) == 0 {
+		return nil, nil
+	}
+	ret := make(map[xml.Name]Property, len(n.deadProps))
+	for k, v := range n.deadProps {
+		ret[k] = v
+	}
+	return ret, nil
+}
+
+func (n *memFSNode) Patch(patches []Proppatch) ([]Propstat, error) {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+	pstat := Propstat{Status: http.StatusOK}
+	for _, patch := range patches {
+		for _, p := range patch.Props {
+			pstat.Props = append(pstat.Props, Property{XMLName: p.XMLName})
+			if patch.Remove {
+				delete(n.deadProps, p.XMLName)
+				continue
+			}
+			if n.deadProps == nil {
+				n.deadProps = map[xml.Name]Property{}
+			}
+			n.deadProps[p.XMLName] = p
+		}
+	}
+	return []Propstat{pstat}, nil
+}
+
+type memFileInfo struct {
+	name    string
+	size    int64
+	mode    os.FileMode
+	modTime time.Time
+}
+
+func (f *memFileInfo) Name() string       { return f.name }
+func (f *memFileInfo) Size() int64        { return f.size }
+func (f *memFileInfo) Mode() os.FileMode  { return f.mode }
+func (f *memFileInfo) ModTime() time.Time { return f.modTime }
+func (f *memFileInfo) IsDir() bool        { return f.mode.IsDir() }
+func (f *memFileInfo) Sys() interface{}   { return nil }
+
+// A memFile is a File implementation for a memFSNode. It is a per-file (not
+// per-node) read/write position, and a snapshot of the memFS' tree structure
+// (a node's name and children) for that node.
+type memFile struct {
+	n                *memFSNode
+	nameSnapshot     string
+	childrenSnapshot []os.FileInfo
+	// pos is protected by n.mu.
+	pos int
+}
+
+// A *memFile implements the optional DeadPropsHolder interface.
+var _ DeadPropsHolder = (*memFile)(nil)
+
+func (f *memFile) DeadProps() (map[xml.Name]Property, error)     { return f.n.DeadProps() }
+func (f *memFile) Patch(patches []Proppatch) ([]Propstat, error) { return f.n.Patch(patches) }
+
+func (f *memFile) Close() error {
+	return nil
+}
+
+func (f *memFile) Read(p []byte) (int, error) {
+	f.n.mu.Lock()
+	defer f.n.mu.Unlock()
+	if f.n.mode.IsDir() {
+		return 0, os.ErrInvalid
+	}
+	if f.pos >= len(f.n.data) {
+		return 0, io.EOF
+	}
+	n := copy(p, f.n.data[f.pos:])
+	f.pos += n
+	return n, nil
+}
+
+func (f *memFile) Readdir(count int) ([]os.FileInfo, error) {
+	f.n.mu.Lock()
+	defer f.n.mu.Unlock()
+	if !f.n.mode.IsDir() {
+		return nil, os.ErrInvalid
+	}
+	old := f.pos
+	if old >= len(f.childrenSnapshot) {
+		// The os.File Readdir docs say that at the end of a directory,
+		// the error is io.EOF if count > 0 and nil if count <= 0.
+		if count > 0 {
+			return nil, io.EOF
+		}
+		return nil, nil
+	}
+	if count > 0 {
+		f.pos += count
+		if f.pos > len(f.childrenSnapshot) {
+			f.pos = len(f.childrenSnapshot)
+		}
+	} else {
+		f.pos = len(f.childrenSnapshot)
+		old = 0
+	}
+	return f.childrenSnapshot[old:f.pos], nil
+}
+
+func (f *memFile) Seek(offset int64, whence int) (int64, error) {
+	f.n.mu.Lock()
+	defer f.n.mu.Unlock()
+	npos := f.pos
+	// TODO: How to handle offsets greater than the size of system int?
+	switch whence {
+	case os.SEEK_SET:
+		npos = int(offset)
+	case os.SEEK_CUR:
+		npos += int(offset)
+	case os.SEEK_END:
+		npos = len(f.n.data) + int(offset)
+	default:
+		npos = -1
+	}
+	if npos < 0 {
+		return 0, os.ErrInvalid
+	}
+	f.pos = npos
+	return int64(f.pos), nil
+}
+
+func (f *memFile) Stat() (os.FileInfo, error) {
+	return f.n.stat(f.nameSnapshot), nil
+}
+
+func (f *memFile) Write(p []byte) (int, error) {
+	lenp := len(p)
+	f.n.mu.Lock()
+	defer f.n.mu.Unlock()
+
+	if f.n.mode.IsDir() {
+		return 0, os.ErrInvalid
+	}
+	if f.pos < len(f.n.data) {
+		n := copy(f.n.data[f.pos:], p)
+		f.pos += n
+		p = p[n:]
+	} else if f.pos > len(f.n.data) {
+		// Write permits the creation of holes, if we've seek'ed past the
+		// existing end of file.
+		if f.pos <= cap(f.n.data) {
+			oldLen := len(f.n.data)
+			f.n.data = f.n.data[:f.pos]
+			hole := f.n.data[oldLen:]
+			for i := range hole {
+				hole[i] = 0
+			}
+		} else {
+			d := make([]byte, f.pos, f.pos+len(p))
+			copy(d, f.n.data)
+			f.n.data = d
+		}
+	}
+
+	if len(p) > 0 {
+		// We should only get here if f.pos == len(f.n.data).
+		f.n.data = append(f.n.data, p...)
+		f.pos = len(f.n.data)
+	}
+	f.n.modTime = time.Now()
+	return lenp, nil
+}
+
+// moveFiles moves files and/or directories from src to dst.
+//
+// See section 9.9.4 for when various HTTP status codes apply.
+func moveFiles(ctx context.Context, fs FileSystem, src, dst string, overwrite bool) (status int, err error) {
+	created := false
+	if _, err := fs.Stat(ctx, dst); err != nil {
+		if !os.IsNotExist(err) {
+			return http.StatusForbidden, err
+		}
+		created = true
+	} else if overwrite {
+		// Section 9.9.3 says that "If a resource exists at the destination
+		// and the Overwrite header is "T", then prior to performing the move,
+		// the server must perform a DELETE with "Depth: infinity" on the
+		// destination resource.
+		if err := fs.RemoveAll(ctx, dst); err != nil {
+			return http.StatusForbidden, err
+		}
+	} else {
+		return http.StatusPreconditionFailed, os.ErrExist
+	}
+	if err := fs.Rename(ctx, src, dst); err != nil {
+		return http.StatusForbidden, err
+	}
+	if created {
+		return http.StatusCreated, nil
+	}
+	return http.StatusNoContent, nil
+}
+
+func copyProps(dst, src File) error {
+	d, ok := dst.(DeadPropsHolder)
+	if !ok {
+		return nil
+	}
+	s, ok := src.(DeadPropsHolder)
+	if !ok {
+		return nil
+	}
+	m, err := s.DeadProps()
+	if err != nil {
+		return err
+	}
+	props := make([]Property, 0, len(m))
+	for _, prop := range m {
+		props = append(props, prop)
+	}
+	_, err = d.Patch([]Proppatch{{Props: props}})
+	return err
+}
+
+// copyFiles copies files and/or directories from src to dst.
+//
+// See section 9.8.5 for when various HTTP status codes apply.
+func copyFiles(ctx context.Context, fs FileSystem, src, dst string, overwrite bool, depth int, recursion int) (status int, err error) {
+	if recursion == 1000 {
+		return http.StatusInternalServerError, errRecursionTooDeep
+	}
+	recursion++
+
+	// TODO: section 9.8.3 says that "Note that an infinite-depth COPY of /A/
+	// into /A/B/ could lead to infinite recursion if not handled correctly."
+
+	srcFile, err := fs.OpenFile(ctx, src, os.O_RDONLY, 0)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusNotFound, err
+		}
+		return http.StatusInternalServerError, err
+	}
+	defer srcFile.Close()
+	srcStat, err := srcFile.Stat()
+	if err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusNotFound, err
+		}
+		return http.StatusInternalServerError, err
+	}
+	srcPerm := srcStat.Mode() & os.ModePerm
+
+	created := false
+	if _, err := fs.Stat(ctx, dst); err != nil {
+		if os.IsNotExist(err) {
+			created = true
+		} else {
+			return http.StatusForbidden, err
+		}
+	} else {
+		if !overwrite {
+			return http.StatusPreconditionFailed, os.ErrExist
+		}
+		if err := fs.RemoveAll(ctx, dst); err != nil && !os.IsNotExist(err) {
+			return http.StatusForbidden, err
+		}
+	}
+
+	if srcStat.IsDir() {
+		if err := fs.Mkdir(ctx, dst, srcPerm); err != nil {
+			return http.StatusForbidden, err
+		}
+		if depth == infiniteDepth {
+			children, err := srcFile.Readdir(-1)
+			if err != nil {
+				return http.StatusForbidden, err
+			}
+			for _, c := range children {
+				name := c.Name()
+				s := path.Join(src, name)
+				d := path.Join(dst, name)
+				cStatus, cErr := copyFiles(ctx, fs, s, d, overwrite, depth, recursion)
+				if cErr != nil {
+					// TODO: MultiStatus.
+					return cStatus, cErr
+				}
+			}
+		}
+
+	} else {
+		dstFile, err := fs.OpenFile(ctx, dst, os.O_RDWR|os.O_CREATE|os.O_TRUNC, srcPerm)
+		if err != nil {
+			if os.IsNotExist(err) {
+				return http.StatusConflict, err
+			}
+			return http.StatusForbidden, err
+
+		}
+		_, copyErr := io.Copy(dstFile, srcFile)
+		propsErr := copyProps(dstFile, srcFile)
+		closeErr := dstFile.Close()
+		if copyErr != nil {
+			return http.StatusInternalServerError, copyErr
+		}
+		if propsErr != nil {
+			return http.StatusInternalServerError, propsErr
+		}
+		if closeErr != nil {
+			return http.StatusInternalServerError, closeErr
+		}
+	}
+
+	if created {
+		return http.StatusCreated, nil
+	}
+	return http.StatusNoContent, nil
+}
+
+// walkFS traverses filesystem fs starting at name up to depth levels.
+//
+// Allowed values for depth are 0, 1 or infiniteDepth. For each visited node,
+// walkFS calls walkFn. If a visited file system node is a directory and
+// walkFn returns filepath.SkipDir, walkFS will skip traversal of this node.
+func walkFS(ctx context.Context, fs FileSystem, depth int, name string, info os.FileInfo, walkFn filepath.WalkFunc) error {
+	// This implementation is based on Walk's code in the standard path/filepath package.
+	err := walkFn(name, info, nil)
+	if err != nil {
+		if info.IsDir() && err == filepath.SkipDir {
+			return nil
+		}
+		return err
+	}
+	if !info.IsDir() || depth == 0 {
+		return nil
+	}
+	if depth == 1 {
+		depth = 0
+	}
+
+	// Read directory names.
+	f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
+	if err != nil {
+		return walkFn(name, info, err)
+	}
+	fileInfos, err := f.Readdir(0)
+	f.Close()
+	if err != nil {
+		return walkFn(name, info, err)
+	}
+
+	for _, fileInfo := range fileInfos {
+		filename := path.Join(name, fileInfo.Name())
+		fileInfo, err := fs.Stat(ctx, filename)
+		if err != nil {
+			if err := walkFn(filename, fileInfo, err); err != nil && err != filepath.SkipDir {
+				return err
+			}
+		} else {
+			err = walkFS(ctx, fs, depth, filename, fileInfo, walkFn)
+			if err != nil {
+				if !fileInfo.IsDir() || err != filepath.SkipDir {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}

vendor/golang.org/x/net/webdav/if.go

@@ -0,0 +1,173 @@
+// 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 webdav
+
+// The If header is covered by Section 10.4.
+// http://www.webdav.org/specs/rfc4918.html#HEADER_If
+
+import (
+	"strings"
+)
+
+// ifHeader is a disjunction (OR) of ifLists.
+type ifHeader struct {
+	lists []ifList
+}
+
+// ifList is a conjunction (AND) of Conditions, and an optional resource tag.
+type ifList struct {
+	resourceTag string
+	conditions  []Condition
+}
+
+// parseIfHeader parses the "If: foo bar" HTTP header. The httpHeader string
+// should omit the "If:" prefix and have any "\r\n"s collapsed to a " ", as is
+// returned by req.Header.Get("If") for a http.Request req.
+func parseIfHeader(httpHeader string) (h ifHeader, ok bool) {
+	s := strings.TrimSpace(httpHeader)
+	switch tokenType, _, _ := lex(s); tokenType {
+	case '(':
+		return parseNoTagLists(s)
+	case angleTokenType:
+		return parseTaggedLists(s)
+	default:
+		return ifHeader{}, false
+	}
+}
+
+func parseNoTagLists(s string) (h ifHeader, ok bool) {
+	for {
+		l, remaining, ok := parseList(s)
+		if !ok {
+			return ifHeader{}, false
+		}
+		h.lists = append(h.lists, l)
+		if remaining == "" {
+			return h, true
+		}
+		s = remaining
+	}
+}
+
+func parseTaggedLists(s string) (h ifHeader, ok bool) {
+	resourceTag, n := "", 0
+	for first := true; ; first = false {
+		tokenType, tokenStr, remaining := lex(s)
+		switch tokenType {
+		case angleTokenType:
+			if !first && n == 0 {
+				return ifHeader{}, false
+			}
+			resourceTag, n = tokenStr, 0
+			s = remaining
+		case '(':
+			n++
+			l, remaining, ok := parseList(s)
+			if !ok {
+				return ifHeader{}, false
+			}
+			l.resourceTag = resourceTag
+			h.lists = append(h.lists, l)
+			if remaining == "" {
+				return h, true
+			}
+			s = remaining
+		default:
+			return ifHeader{}, false
+		}
+	}
+}
+
+func parseList(s string) (l ifList, remaining string, ok bool) {
+	tokenType, _, s := lex(s)
+	if tokenType != '(' {
+		return ifList{}, "", false
+	}
+	for {
+		tokenType, _, remaining = lex(s)
+		if tokenType == ')' {
+			if len(l.conditions) == 0 {
+				return ifList{}, "", false
+			}
+			return l, remaining, true
+		}
+		c, remaining, ok := parseCondition(s)
+		if !ok {
+			return ifList{}, "", false
+		}
+		l.conditions = append(l.conditions, c)
+		s = remaining
+	}
+}
+
+func parseCondition(s string) (c Condition, remaining string, ok bool) {
+	tokenType, tokenStr, s := lex(s)
+	if tokenType == notTokenType {
+		c.Not = true
+		tokenType, tokenStr, s = lex(s)
+	}
+	switch tokenType {
+	case strTokenType, angleTokenType:
+		c.Token = tokenStr
+	case squareTokenType:
+		c.ETag = tokenStr
+	default:
+		return Condition{}, "", false
+	}
+	return c, s, true
+}
+
+// Single-rune tokens like '(' or ')' have a token type equal to their rune.
+// All other tokens have a negative token type.
+const (
+	errTokenType    = rune(-1)
+	eofTokenType    = rune(-2)
+	strTokenType    = rune(-3)
+	notTokenType    = rune(-4)
+	angleTokenType  = rune(-5)
+	squareTokenType = rune(-6)
+)
+
+func lex(s string) (tokenType rune, tokenStr string, remaining string) {
+	// The net/textproto Reader that parses the HTTP header will collapse
+	// Linear White Space that spans multiple "\r\n" lines to a single " ",
+	// so we don't need to look for '\r' or '\n'.
+	for len(s) > 0 && (s[0] == '\t' || s[0] == ' ') {
+		s = s[1:]
+	}
+	if len(s) == 0 {
+		return eofTokenType, "", ""
+	}
+	i := 0
+loop:
+	for ; i < len(s); i++ {
+		switch s[i] {
+		case '\t', ' ', '(', ')', '<', '>', '[', ']':
+			break loop
+		}
+	}
+
+	if i != 0 {
+		tokenStr, remaining = s[:i], s[i:]
+		if tokenStr == "Not" {
+			return notTokenType, "", remaining
+		}
+		return strTokenType, tokenStr, remaining
+	}
+
+	j := 0
+	switch s[0] {
+	case '<':
+		j, tokenType = strings.IndexByte(s, '>'), angleTokenType
+	case '[':
+		j, tokenType = strings.IndexByte(s, ']'), squareTokenType
+	default:
+		return rune(s[0]), "", s[1:]
+	}
+	if j < 0 {
+		return errTokenType, "", ""
+	}
+	return tokenType, s[1:j], s[j+1:]
+}

vendor/golang.org/x/net/webdav/internal/xml/README

@@ -0,0 +1,11 @@
+This is a fork of the encoding/xml package at ca1d6c4, the last commit before
+https://go.googlesource.com/go/+/c0d6d33 "encoding/xml: restore Go 1.4 name
+space behavior" made late in the lead-up to the Go 1.5 release.
+
+The list of encoding/xml changes is at
+https://go.googlesource.com/go/+log/master/src/encoding/xml
+
+This fork is temporary, and I (nigeltao) expect to revert it after Go 1.6 is
+released.
+
+See http://golang.org/issue/11841

vendor/golang.org/x/net/webdav/internal/xml/read.go

@@ -0,0 +1,692 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xml
+
+import (
+	"bytes"
+	"encoding"
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// BUG(rsc): Mapping between XML elements and data structures is inherently flawed:
+// an XML element is an order-dependent collection of anonymous
+// values, while a data structure is an order-independent collection
+// of named values.
+// See package json for a textual representation more suitable
+// to data structures.
+
+// Unmarshal parses the XML-encoded data and stores the result in
+// the value pointed to by v, which must be an arbitrary struct,
+// slice, or string. Well-formed data that does not fit into v is
+// discarded.
+//
+// Because Unmarshal uses the reflect package, it can only assign
+// to exported (upper case) fields. Unmarshal uses a case-sensitive
+// comparison to match XML element names to tag values and struct
+// field names.
+//
+// Unmarshal maps an XML element to a struct using the following rules.
+// In the rules, the tag of a field refers to the value associated with the
+// key 'xml' in the struct field's tag (see the example above).
+//
+//   * If the struct has a field of type []byte or string with tag
+//      ",innerxml", Unmarshal accumulates the raw XML nested inside the
+//      element in that field. The rest of the rules still apply.
+//
+//   * If the struct has a field named XMLName of type xml.Name,
+//      Unmarshal records the element name in that field.
+//
+//   * If the XMLName field has an associated tag of the form
+//      "name" or "namespace-URL name", the XML element must have
+//      the given name (and, optionally, name space) or else Unmarshal
+//      returns an error.
+//
+//   * If the XML element has an attribute whose name matches a
+//      struct field name with an associated tag containing ",attr" or
+//      the explicit name in a struct field tag of the form "name,attr",
+//      Unmarshal records the attribute value in that field.
+//
+//   * If the XML element contains character data, that data is
+//      accumulated in the first struct field that has tag ",chardata".
+//      The struct field may have type []byte or string.
+//      If there is no such field, the character data is discarded.
+//
+//   * If the XML element contains comments, they are accumulated in
+//      the first struct field that has tag ",comment".  The struct
+//      field may have type []byte or string. If there is no such
+//      field, the comments are discarded.
+//
+//   * If the XML element contains a sub-element whose name matches
+//      the prefix of a tag formatted as "a" or "a>b>c", unmarshal
+//      will descend into the XML structure looking for elements with the
+//      given names, and will map the innermost elements to that struct
+//      field. A tag starting with ">" is equivalent to one starting
+//      with the field name followed by ">".
+//
+//   * If the XML element contains a sub-element whose name matches
+//      a struct field's XMLName tag and the struct field has no
+//      explicit name tag as per the previous rule, unmarshal maps
+//      the sub-element to that struct field.
+//
+//   * If the XML element contains a sub-element whose name matches a
+//      field without any mode flags (",attr", ",chardata", etc), Unmarshal
+//      maps the sub-element to that struct field.
+//
+//   * If the XML element contains a sub-element that hasn't matched any
+//      of the above rules and the struct has a field with tag ",any",
+//      unmarshal maps the sub-element to that struct field.
+//
+//   * An anonymous struct field is handled as if the fields of its
+//      value were part of the outer struct.
+//
+//   * A struct field with tag "-" is never unmarshalled into.
+//
+// Unmarshal maps an XML element to a string or []byte by saving the
+// concatenation of that element's character data in the string or
+// []byte. The saved []byte is never nil.
+//
+// Unmarshal maps an attribute value to a string or []byte by saving
+// the value in the string or slice.
+//
+// Unmarshal maps an XML element to a slice by extending the length of
+// the slice and mapping the element to the newly created value.
+//
+// Unmarshal maps an XML element or attribute value to a bool by
+// setting it to the boolean value represented by the string.
+//
+// Unmarshal maps an XML element or attribute value to an integer or
+// floating-point field by setting the field to the result of
+// interpreting the string value in decimal. There is no check for
+// overflow.
+//
+// Unmarshal maps an XML element to an xml.Name by recording the
+// element name.
+//
+// Unmarshal maps an XML element to a pointer by setting the pointer
+// to a freshly allocated value and then mapping the element to that value.
+//
+func Unmarshal(data []byte, v interface{}) error {
+	return NewDecoder(bytes.NewReader(data)).Decode(v)
+}
+
+// Decode works like xml.Unmarshal, except it reads the decoder
+// stream to find the start element.
+func (d *Decoder) Decode(v interface{}) error {
+	return d.DecodeElement(v, nil)
+}
+
+// DecodeElement works like xml.Unmarshal except that it takes
+// a pointer to the start XML element to decode into v.
+// It is useful when a client reads some raw XML tokens itself
+// but also wants to defer to Unmarshal for some elements.
+func (d *Decoder) DecodeElement(v interface{}, start *StartElement) error {
+	val := reflect.ValueOf(v)
+	if val.Kind() != reflect.Ptr {
+		return errors.New("non-pointer passed to Unmarshal")
+	}
+	return d.unmarshal(val.Elem(), start)
+}
+
+// An UnmarshalError represents an error in the unmarshalling process.
+type UnmarshalError string
+
+func (e UnmarshalError) Error() string { return string(e) }
+
+// Unmarshaler is the interface implemented by objects that can unmarshal
+// an XML element description of themselves.
+//
+// UnmarshalXML decodes a single XML element
+// beginning with the given start element.
+// If it returns an error, the outer call to Unmarshal stops and
+// returns that error.
+// UnmarshalXML must consume exactly one XML element.
+// One common implementation strategy is to unmarshal into
+// a separate value with a layout matching the expected XML
+// using d.DecodeElement,  and then to copy the data from
+// that value into the receiver.
+// Another common strategy is to use d.Token to process the
+// XML object one token at a time.
+// UnmarshalXML may not use d.RawToken.
+type Unmarshaler interface {
+	UnmarshalXML(d *Decoder, start StartElement) error
+}
+
+// UnmarshalerAttr is the interface implemented by objects that can unmarshal
+// an XML attribute description of themselves.
+//
+// UnmarshalXMLAttr decodes a single XML attribute.
+// If it returns an error, the outer call to Unmarshal stops and
+// returns that error.
+// UnmarshalXMLAttr is used only for struct fields with the
+// "attr" option in the field tag.
+type UnmarshalerAttr interface {
+	UnmarshalXMLAttr(attr Attr) error
+}
+
+// receiverType returns the receiver type to use in an expression like "%s.MethodName".
+func receiverType(val interface{}) string {
+	t := reflect.TypeOf(val)
+	if t.Name() != "" {
+		return t.String()
+	}
+	return "(" + t.String() + ")"
+}
+
+// unmarshalInterface unmarshals a single XML element into val.
+// start is the opening tag of the element.
+func (p *Decoder) unmarshalInterface(val Unmarshaler, start *StartElement) error {
+	// Record that decoder must stop at end tag corresponding to start.
+	p.pushEOF()
+
+	p.unmarshalDepth++
+	err := val.UnmarshalXML(p, *start)
+	p.unmarshalDepth--
+	if err != nil {
+		p.popEOF()
+		return err
+	}
+
+	if !p.popEOF() {
+		return fmt.Errorf("xml: %s.UnmarshalXML did not consume entire <%s> element", receiverType(val), start.Name.Local)
+	}
+
+	return nil
+}
+
+// unmarshalTextInterface unmarshals a single XML element into val.
+// The chardata contained in the element (but not its children)
+// is passed to the text unmarshaler.
+func (p *Decoder) unmarshalTextInterface(val encoding.TextUnmarshaler, start *StartElement) error {
+	var buf []byte
+	depth := 1
+	for depth > 0 {
+		t, err := p.Token()
+		if err != nil {
+			return err
+		}
+		switch t := t.(type) {
+		case CharData:
+			if depth == 1 {
+				buf = append(buf, t...)
+			}
+		case StartElement:
+			depth++
+		case EndElement:
+			depth--
+		}
+	}
+	return val.UnmarshalText(buf)
+}
+
+// unmarshalAttr unmarshals a single XML attribute into val.
+func (p *Decoder) unmarshalAttr(val reflect.Value, attr Attr) error {
+	if val.Kind() == reflect.Ptr {
+		if val.IsNil() {
+			val.Set(reflect.New(val.Type().Elem()))
+		}
+		val = val.Elem()
+	}
+
+	if val.CanInterface() && val.Type().Implements(unmarshalerAttrType) {
+		// This is an unmarshaler with a non-pointer receiver,
+		// so it's likely to be incorrect, but we do what we're told.
+		return val.Interface().(UnmarshalerAttr).UnmarshalXMLAttr(attr)
+	}
+	if val.CanAddr() {
+		pv := val.Addr()
+		if pv.CanInterface() && pv.Type().Implements(unmarshalerAttrType) {
+			return pv.Interface().(UnmarshalerAttr).UnmarshalXMLAttr(attr)
+		}
+	}
+
+	// Not an UnmarshalerAttr; try encoding.TextUnmarshaler.
+	if val.CanInterface() && val.Type().Implements(textUnmarshalerType) {
+		// This is an unmarshaler with a non-pointer receiver,
+		// so it's likely to be incorrect, but we do what we're told.
+		return val.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(attr.Value))
+	}
+	if val.CanAddr() {
+		pv := val.Addr()
+		if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
+			return pv.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(attr.Value))
+		}
+	}
+
+	copyValue(val, []byte(attr.Value))
+	return nil
+}
+
+var (
+	unmarshalerType     = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
+	unmarshalerAttrType = reflect.TypeOf((*UnmarshalerAttr)(nil)).Elem()
+	textUnmarshalerType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem()
+)
+
+// Unmarshal a single XML element into val.
+func (p *Decoder) unmarshal(val reflect.Value, start *StartElement) error {
+	// Find start element if we need it.
+	if start == nil {
+		for {
+			tok, err := p.Token()
+			if err != nil {
+				return err
+			}
+			if t, ok := tok.(StartElement); ok {
+				start = &t
+				break
+			}
+		}
+	}
+
+	// Load value from interface, but only if the result will be
+	// usefully addressable.
+	if val.Kind() == reflect.Interface && !val.IsNil() {
+		e := val.Elem()
+		if e.Kind() == reflect.Ptr && !e.IsNil() {
+			val = e
+		}
+	}
+
+	if val.Kind() == reflect.Ptr {
+		if val.IsNil() {
+			val.Set(reflect.New(val.Type().Elem()))
+		}
+		val = val.Elem()
+	}
+
+	if val.CanInterface() && val.Type().Implements(unmarshalerType) {
+		// This is an unmarshaler with a non-pointer receiver,
+		// so it's likely to be incorrect, but we do what we're told.
+		return p.unmarshalInterface(val.Interface().(Unmarshaler), start)
+	}
+
+	if val.CanAddr() {
+		pv := val.Addr()
+		if pv.CanInterface() && pv.Type().Implements(unmarshalerType) {
+			return p.unmarshalInterface(pv.Interface().(Unmarshaler), start)
+		}
+	}
+
+	if val.CanInterface() && val.Type().Implements(textUnmarshalerType) {
+		return p.unmarshalTextInterface(val.Interface().(encoding.TextUnmarshaler), start)
+	}
+
+	if val.CanAddr() {
+		pv := val.Addr()
+		if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
+			return p.unmarshalTextInterface(pv.Interface().(encoding.TextUnmarshaler), start)
+		}
+	}
+
+	var (
+		data         []byte
+		saveData     reflect.Value
+		comment      []byte
+		saveComment  reflect.Value
+		saveXML      reflect.Value
+		saveXMLIndex int
+		saveXMLData  []byte
+		saveAny      reflect.Value
+		sv           reflect.Value
+		tinfo        *typeInfo
+		err          error
+	)
+
+	switch v := val; v.Kind() {
+	default:
+		return errors.New("unknown type " + v.Type().String())
+
+	case reflect.Interface:
+		// TODO: For now, simply ignore the field. In the near
+		//       future we may choose to unmarshal the start
+		//       element on it, if not nil.
+		return p.Skip()
+
+	case reflect.Slice:
+		typ := v.Type()
+		if typ.Elem().Kind() == reflect.Uint8 {
+			// []byte
+			saveData = v
+			break
+		}
+
+		// Slice of element values.
+		// Grow slice.
+		n := v.Len()
+		if n >= v.Cap() {
+			ncap := 2 * n
+			if ncap < 4 {
+				ncap = 4
+			}
+			new := reflect.MakeSlice(typ, n, ncap)
+			reflect.Copy(new, v)
+			v.Set(new)
+		}
+		v.SetLen(n + 1)
+
+		// Recur to read element into slice.
+		if err := p.unmarshal(v.Index(n), start); err != nil {
+			v.SetLen(n)
+			return err
+		}
+		return nil
+
+	case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr, reflect.String:
+		saveData = v
+
+	case reflect.Struct:
+		typ := v.Type()
+		if typ == nameType {
+			v.Set(reflect.ValueOf(start.Name))
+			break
+		}
+
+		sv = v
+		tinfo, err = getTypeInfo(typ)
+		if err != nil {
+			return err
+		}
+
+		// Validate and assign element name.
+		if tinfo.xmlname != nil {
+			finfo := tinfo.xmlname
+			if finfo.name != "" && finfo.name != start.Name.Local {
+				return UnmarshalError("expected element type <" + finfo.name + "> but have <" + start.Name.Local + ">")
+			}
+			if finfo.xmlns != "" && finfo.xmlns != start.Name.Space {
+				e := "expected element <" + finfo.name + "> in name space " + finfo.xmlns + " but have "
+				if start.Name.Space == "" {
+					e += "no name space"
+				} else {
+					e += start.Name.Space
+				}
+				return UnmarshalError(e)
+			}
+			fv := finfo.value(sv)
+			if _, ok := fv.Interface().(Name); ok {
+				fv.Set(reflect.ValueOf(start.Name))
+			}
+		}
+
+		// Assign attributes.
+		// Also, determine whether we need to save character data or comments.
+		for i := range tinfo.fields {
+			finfo := &tinfo.fields[i]
+			switch finfo.flags & fMode {
+			case fAttr:
+				strv := finfo.value(sv)
+				// Look for attribute.
+				for _, a := range start.Attr {
+					if a.Name.Local == finfo.name && (finfo.xmlns == "" || finfo.xmlns == a.Name.Space) {
+						if err := p.unmarshalAttr(strv, a); err != nil {
+							return err
+						}
+						break
+					}
+				}
+
+			case fCharData:
+				if !saveData.IsValid() {
+					saveData = finfo.value(sv)
+				}
+
+			case fComment:
+				if !saveComment.IsValid() {
+					saveComment = finfo.value(sv)
+				}
+
+			case fAny, fAny | fElement:
+				if !saveAny.IsValid() {
+					saveAny = finfo.value(sv)
+				}
+
+			case fInnerXml:
+				if !saveXML.IsValid() {
+					saveXML = finfo.value(sv)
+					if p.saved == nil {
+						saveXMLIndex = 0
+						p.saved = new(bytes.Buffer)
+					} else {
+						saveXMLIndex = p.savedOffset()
+					}
+				}
+			}
+		}
+	}
+
+	// Find end element.
+	// Process sub-elements along the way.
+Loop:
+	for {
+		var savedOffset int
+		if saveXML.IsValid() {
+			savedOffset = p.savedOffset()
+		}
+		tok, err := p.Token()
+		if err != nil {
+			return err
+		}
+		switch t := tok.(type) {
+		case StartElement:
+			consumed := false
+			if sv.IsValid() {
+				consumed, err = p.unmarshalPath(tinfo, sv, nil, &t)
+				if err != nil {
+					return err
+				}
+				if !consumed && saveAny.IsValid() {
+					consumed = true
+					if err := p.unmarshal(saveAny, &t); err != nil {
+						return err
+					}
+				}
+			}
+			if !consumed {
+				if err := p.Skip(); err != nil {
+					return err
+				}
+			}
+
+		case EndElement:
+			if saveXML.IsValid() {
+				saveXMLData = p.saved.Bytes()[saveXMLIndex:savedOffset]
+				if saveXMLIndex == 0 {
+					p.saved = nil
+				}
+			}
+			break Loop
+
+		case CharData:
+			if saveData.IsValid() {
+				data = append(data, t...)
+			}
+
+		case Comment:
+			if saveComment.IsValid() {
+				comment = append(comment, t...)
+			}
+		}
+	}
+
+	if saveData.IsValid() && saveData.CanInterface() && saveData.Type().Implements(textUnmarshalerType) {
+		if err := saveData.Interface().(encoding.TextUnmarshaler).UnmarshalText(data); err != nil {
+			return err
+		}
+		saveData = reflect.Value{}
+	}
+
+	if saveData.IsValid() && saveData.CanAddr() {
+		pv := saveData.Addr()
+		if pv.CanInterface() && pv.Type().Implements(textUnmarshalerType) {
+			if err := pv.Interface().(encoding.TextUnmarshaler).UnmarshalText(data); err != nil {
+				return err
+			}
+			saveData = reflect.Value{}
+		}
+	}
+
+	if err := copyValue(saveData, data); err != nil {
+		return err
+	}
+
+	switch t := saveComment; t.Kind() {
+	case reflect.String:
+		t.SetString(string(comment))
+	case reflect.Slice:
+		t.Set(reflect.ValueOf(comment))
+	}
+
+	switch t := saveXML; t.Kind() {
+	case reflect.String:
+		t.SetString(string(saveXMLData))
+	case reflect.Slice:
+		t.Set(reflect.ValueOf(saveXMLData))
+	}
+
+	return nil
+}
+
+func copyValue(dst reflect.Value, src []byte) (err error) {
+	dst0 := dst
+
+	if dst.Kind() == reflect.Ptr {
+		if dst.IsNil() {
+			dst.Set(reflect.New(dst.Type().Elem()))
+		}
+		dst = dst.Elem()
+	}
+
+	// Save accumulated data.
+	switch dst.Kind() {
+	case reflect.Invalid:
+		// Probably a comment.
+	default:
+		return errors.New("cannot unmarshal into " + dst0.Type().String())
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		itmp, err := strconv.ParseInt(string(src), 10, dst.Type().Bits())
+		if err != nil {
+			return err
+		}
+		dst.SetInt(itmp)
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		utmp, err := strconv.ParseUint(string(src), 10, dst.Type().Bits())
+		if err != nil {
+			return err
+		}
+		dst.SetUint(utmp)
+	case reflect.Float32, reflect.Float64:
+		ftmp, err := strconv.ParseFloat(string(src), dst.Type().Bits())
+		if err != nil {
+			return err
+		}
+		dst.SetFloat(ftmp)
+	case reflect.Bool:
+		value, err := strconv.ParseBool(strings.TrimSpace(string(src)))
+		if err != nil {
+			return err
+		}
+		dst.SetBool(value)
+	case reflect.String:
+		dst.SetString(string(src))
+	case reflect.Slice:
+		if len(src) == 0 {
+			// non-nil to flag presence
+			src = []byte{}
+		}
+		dst.SetBytes(src)
+	}
+	return nil
+}
+
+// unmarshalPath walks down an XML structure looking for wanted
+// paths, and calls unmarshal on them.
+// The consumed result tells whether XML elements have been consumed
+// from the Decoder until start's matching end element, or if it's
+// still untouched because start is uninteresting for sv's fields.
+func (p *Decoder) unmarshalPath(tinfo *typeInfo, sv reflect.Value, parents []string, start *StartElement) (consumed bool, err error) {
+	recurse := false
+Loop:
+	for i := range tinfo.fields {
+		finfo := &tinfo.fields[i]
+		if finfo.flags&fElement == 0 || len(finfo.parents) < len(parents) || finfo.xmlns != "" && finfo.xmlns != start.Name.Space {
+			continue
+		}
+		for j := range parents {
+			if parents[j] != finfo.parents[j] {
+				continue Loop
+			}
+		}
+		if len(finfo.parents) == len(parents) && finfo.name == start.Name.Local {
+			// It's a perfect match, unmarshal the field.
+			return true, p.unmarshal(finfo.value(sv), start)
+		}
+		if len(finfo.parents) > len(parents) && finfo.parents[len(parents)] == start.Name.Local {
+			// It's a prefix for the field. Break and recurse
+			// since it's not ok for one field path to be itself
+			// the prefix for another field path.
+			recurse = true
+
+			// We can reuse the same slice as long as we
+			// don't try to append to it.
+			parents = finfo.parents[:len(parents)+1]
+			break
+		}
+	}
+	if !recurse {
+		// We have no business with this element.
+		return false, nil
+	}
+	// The element is not a perfect match for any field, but one
+	// or more fields have the path to this element as a parent
+	// prefix. Recurse and attempt to match these.
+	for {
+		var tok Token
+		tok, err = p.Token()
+		if err != nil {
+			return true, err
+		}
+		switch t := tok.(type) {
+		case StartElement:
+			consumed2, err := p.unmarshalPath(tinfo, sv, parents, &t)
+			if err != nil {
+				return true, err
+			}
+			if !consumed2 {
+				if err := p.Skip(); err != nil {
+					return true, err
+				}
+			}
+		case EndElement:
+			return true, nil
+		}
+	}
+}
+
+// Skip reads tokens until it has consumed the end element
+// matching the most recent start element already consumed.
+// It recurs if it encounters a start element, so it can be used to
+// skip nested structures.
+// It returns nil if it finds an end element matching the start
+// element; otherwise it returns an error describing the problem.
+func (d *Decoder) Skip() error {
+	for {
+		tok, err := d.Token()
+		if err != nil {
+			return err
+		}
+		switch tok.(type) {
+		case StartElement:
+			if err := d.Skip(); err != nil {
+				return err
+			}
+		case EndElement:
+			return nil
+		}
+	}
+}

vendor/golang.org/x/net/webdav/internal/xml/typeinfo.go

@@ -0,0 +1,371 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xml
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// typeInfo holds details for the xml representation of a type.
+type typeInfo struct {
+	xmlname *fieldInfo
+	fields  []fieldInfo
+}
+
+// fieldInfo holds details for the xml representation of a single field.
+type fieldInfo struct {
+	idx     []int
+	name    string
+	xmlns   string
+	flags   fieldFlags
+	parents []string
+}
+
+type fieldFlags int
+
+const (
+	fElement fieldFlags = 1 << iota
+	fAttr
+	fCharData
+	fInnerXml
+	fComment
+	fAny
+
+	fOmitEmpty
+
+	fMode = fElement | fAttr | fCharData | fInnerXml | fComment | fAny
+)
+
+var tinfoMap = make(map[reflect.Type]*typeInfo)
+var tinfoLock sync.RWMutex
+
+var nameType = reflect.TypeOf(Name{})
+
+// getTypeInfo returns the typeInfo structure with details necessary
+// for marshalling and unmarshalling typ.
+func getTypeInfo(typ reflect.Type) (*typeInfo, error) {
+	tinfoLock.RLock()
+	tinfo, ok := tinfoMap[typ]
+	tinfoLock.RUnlock()
+	if ok {
+		return tinfo, nil
+	}
+	tinfo = &typeInfo{}
+	if typ.Kind() == reflect.Struct && typ != nameType {
+		n := typ.NumField()
+		for i := 0; i < n; i++ {
+			f := typ.Field(i)
+			if f.PkgPath != "" || f.Tag.Get("xml") == "-" {
+				continue // Private field
+			}
+
+			// For embedded structs, embed its fields.
+			if f.Anonymous {
+				t := f.Type
+				if t.Kind() == reflect.Ptr {
+					t = t.Elem()
+				}
+				if t.Kind() == reflect.Struct {
+					inner, err := getTypeInfo(t)
+					if err != nil {
+						return nil, err
+					}
+					if tinfo.xmlname == nil {
+						tinfo.xmlname = inner.xmlname
+					}
+					for _, finfo := range inner.fields {
+						finfo.idx = append([]int{i}, finfo.idx...)
+						if err := addFieldInfo(typ, tinfo, &finfo); err != nil {
+							return nil, err
+						}
+					}
+					continue
+				}
+			}
+
+			finfo, err := structFieldInfo(typ, &f)
+			if err != nil {
+				return nil, err
+			}
+
+			if f.Name == "XMLName" {
+				tinfo.xmlname = finfo
+				continue
+			}
+
+			// Add the field if it doesn't conflict with other fields.
+			if err := addFieldInfo(typ, tinfo, finfo); err != nil {
+				return nil, err
+			}
+		}
+	}
+	tinfoLock.Lock()
+	tinfoMap[typ] = tinfo
+	tinfoLock.Unlock()
+	return tinfo, nil
+}
+
+// structFieldInfo builds and returns a fieldInfo for f.
+func structFieldInfo(typ reflect.Type, f *reflect.StructField) (*fieldInfo, error) {
+	finfo := &fieldInfo{idx: f.Index}
+
+	// Split the tag from the xml namespace if necessary.
+	tag := f.Tag.Get("xml")
+	if i := strings.Index(tag, " "); i >= 0 {
+		finfo.xmlns, tag = tag[:i], tag[i+1:]
+	}
+
+	// Parse flags.
+	tokens := strings.Split(tag, ",")
+	if len(tokens) == 1 {
+		finfo.flags = fElement
+	} else {
+		tag = tokens[0]
+		for _, flag := range tokens[1:] {
+			switch flag {
+			case "attr":
+				finfo.flags |= fAttr
+			case "chardata":
+				finfo.flags |= fCharData
+			case "innerxml":
+				finfo.flags |= fInnerXml
+			case "comment":
+				finfo.flags |= fComment
+			case "any":
+				finfo.flags |= fAny
+			case "omitempty":
+				finfo.flags |= fOmitEmpty
+			}
+		}
+
+		// Validate the flags used.
+		valid := true
+		switch mode := finfo.flags & fMode; mode {
+		case 0:
+			finfo.flags |= fElement
+		case fAttr, fCharData, fInnerXml, fComment, fAny:
+			if f.Name == "XMLName" || tag != "" && mode != fAttr {
+				valid = false
+			}
+		default:
+			// This will also catch multiple modes in a single field.
+			valid = false
+		}
+		if finfo.flags&fMode == fAny {
+			finfo.flags |= fElement
+		}
+		if finfo.flags&fOmitEmpty != 0 && finfo.flags&(fElement|fAttr) == 0 {
+			valid = false
+		}
+		if !valid {
+			return nil, fmt.Errorf("xml: invalid tag in field %s of type %s: %q",
+				f.Name, typ, f.Tag.Get("xml"))
+		}
+	}
+
+	// Use of xmlns without a name is not allowed.
+	if finfo.xmlns != "" && tag == "" {
+		return nil, fmt.Errorf("xml: namespace without name in field %s of type %s: %q",
+			f.Name, typ, f.Tag.Get("xml"))
+	}
+
+	if f.Name == "XMLName" {
+		// The XMLName field records the XML element name. Don't
+		// process it as usual because its name should default to
+		// empty rather than to the field name.
+		finfo.name = tag
+		return finfo, nil
+	}
+
+	if tag == "" {
+		// If the name part of the tag is completely empty, get
+		// default from XMLName of underlying struct if feasible,
+		// or field name otherwise.
+		if xmlname := lookupXMLName(f.Type); xmlname != nil {
+			finfo.xmlns, finfo.name = xmlname.xmlns, xmlname.name
+		} else {
+			finfo.name = f.Name
+		}
+		return finfo, nil
+	}
+
+	if finfo.xmlns == "" && finfo.flags&fAttr == 0 {
+		// If it's an element no namespace specified, get the default
+		// from the XMLName of enclosing struct if possible.
+		if xmlname := lookupXMLName(typ); xmlname != nil {
+			finfo.xmlns = xmlname.xmlns
+		}
+	}
+
+	// Prepare field name and parents.
+	parents := strings.Split(tag, ">")
+	if parents[0] == "" {
+		parents[0] = f.Name
+	}
+	if parents[len(parents)-1] == "" {
+		return nil, fmt.Errorf("xml: trailing '>' in field %s of type %s", f.Name, typ)
+	}
+	finfo.name = parents[len(parents)-1]
+	if len(parents) > 1 {
+		if (finfo.flags & fElement) == 0 {
+			return nil, fmt.Errorf("xml: %s chain not valid with %s flag", tag, strings.Join(tokens[1:], ","))
+		}
+		finfo.parents = parents[:len(parents)-1]
+	}
+
+	// If the field type has an XMLName field, the names must match
+	// so that the behavior of both marshalling and unmarshalling
+	// is straightforward and unambiguous.
+	if finfo.flags&fElement != 0 {
+		ftyp := f.Type
+		xmlname := lookupXMLName(ftyp)
+		if xmlname != nil && xmlname.name != finfo.name {
+			return nil, fmt.Errorf("xml: name %q in tag of %s.%s conflicts with name %q in %s.XMLName",
+				finfo.name, typ, f.Name, xmlname.name, ftyp)
+		}
+	}
+	return finfo, nil
+}
+
+// lookupXMLName returns the fieldInfo for typ's XMLName field
+// in case it exists and has a valid xml field tag, otherwise
+// it returns nil.
+func lookupXMLName(typ reflect.Type) (xmlname *fieldInfo) {
+	for typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+	}
+	if typ.Kind() != reflect.Struct {
+		return nil
+	}
+	for i, n := 0, typ.NumField(); i < n; i++ {
+		f := typ.Field(i)
+		if f.Name != "XMLName" {
+			continue
+		}
+		finfo, err := structFieldInfo(typ, &f)
+		if finfo.name != "" && err == nil {
+			return finfo
+		}
+		// Also consider errors as a non-existent field tag
+		// and let getTypeInfo itself report the error.
+		break
+	}
+	return nil
+}
+
+func min(a, b int) int {
+	if a <= b {
+		return a
+	}
+	return b
+}
+
+// addFieldInfo adds finfo to tinfo.fields if there are no
+// conflicts, or if conflicts arise from previous fields that were
+// obtained from deeper embedded structures than finfo. In the latter
+// case, the conflicting entries are dropped.
+// A conflict occurs when the path (parent + name) to a field is
+// itself a prefix of another path, or when two paths match exactly.
+// It is okay for field paths to share a common, shorter prefix.
+func addFieldInfo(typ reflect.Type, tinfo *typeInfo, newf *fieldInfo) error {
+	var conflicts []int
+Loop:
+	// First, figure all conflicts. Most working code will have none.
+	for i := range tinfo.fields {
+		oldf := &tinfo.fields[i]
+		if oldf.flags&fMode != newf.flags&fMode {
+			continue
+		}
+		if oldf.xmlns != "" && newf.xmlns != "" && oldf.xmlns != newf.xmlns {
+			continue
+		}
+		minl := min(len(newf.parents), len(oldf.parents))
+		for p := 0; p < minl; p++ {
+			if oldf.parents[p] != newf.parents[p] {
+				continue Loop
+			}
+		}
+		if len(oldf.parents) > len(newf.parents) {
+			if oldf.parents[len(newf.parents)] == newf.name {
+				conflicts = append(conflicts, i)
+			}
+		} else if len(oldf.parents) < len(newf.parents) {
+			if newf.parents[len(oldf.parents)] == oldf.name {
+				conflicts = append(conflicts, i)
+			}
+		} else {
+			if newf.name == oldf.name {
+				conflicts = append(conflicts, i)
+			}
+		}
+	}
+	// Without conflicts, add the new field and return.
+	if conflicts == nil {
+		tinfo.fields = append(tinfo.fields, *newf)
+		return nil
+	}
+
+	// If any conflict is shallower, ignore the new field.
+	// This matches the Go field resolution on embedding.
+	for _, i := range conflicts {
+		if len(tinfo.fields[i].idx) < len(newf.idx) {
+			return nil
+		}
+	}
+
+	// Otherwise, if any of them is at the same depth level, it's an error.
+	for _, i := range conflicts {
+		oldf := &tinfo.fields[i]
+		if len(oldf.idx) == len(newf.idx) {
+			f1 := typ.FieldByIndex(oldf.idx)
+			f2 := typ.FieldByIndex(newf.idx)
+			return &TagPathError{typ, f1.Name, f1.Tag.Get("xml"), f2.Name, f2.Tag.Get("xml")}
+		}
+	}
+
+	// Otherwise, the new field is shallower, and thus takes precedence,
+	// so drop the conflicting fields from tinfo and append the new one.
+	for c := len(conflicts) - 1; c >= 0; c-- {
+		i := conflicts[c]
+		copy(tinfo.fields[i:], tinfo.fields[i+1:])
+		tinfo.fields = tinfo.fields[:len(tinfo.fields)-1]
+	}
+	tinfo.fields = append(tinfo.fields, *newf)
+	return nil
+}
+
+// A TagPathError represents an error in the unmarshalling process
+// caused by the use of field tags with conflicting paths.
+type TagPathError struct {
+	Struct       reflect.Type
+	Field1, Tag1 string
+	Field2, Tag2 string
+}
+
+func (e *TagPathError) Error() string {
+	return fmt.Sprintf("%s field %q with tag %q conflicts with field %q with tag %q", e.Struct, e.Field1, e.Tag1, e.Field2, e.Tag2)
+}
+
+// value returns v's field value corresponding to finfo.
+// It's equivalent to v.FieldByIndex(finfo.idx), but initializes
+// and dereferences pointers as necessary.
+func (finfo *fieldInfo) value(v reflect.Value) reflect.Value {
+	for i, x := range finfo.idx {
+		if i > 0 {
+			t := v.Type()
+			if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct {
+				if v.IsNil() {
+					v.Set(reflect.New(v.Type().Elem()))
+				}
+				v = v.Elem()
+			}
+		}
+		v = v.Field(x)
+	}
+	return v
+}

vendor/golang.org/x/net/webdav/lock.go

@@ -0,0 +1,445 @@
+// 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 webdav
+
+import (
+	"container/heap"
+	"errors"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	// ErrConfirmationFailed is returned by a LockSystem's Confirm method.
+	ErrConfirmationFailed = errors.New("webdav: confirmation failed")
+	// ErrForbidden is returned by a LockSystem's Unlock method.
+	ErrForbidden = errors.New("webdav: forbidden")
+	// ErrLocked is returned by a LockSystem's Create, Refresh and Unlock methods.
+	ErrLocked = errors.New("webdav: locked")
+	// ErrNoSuchLock is returned by a LockSystem's Refresh and Unlock methods.
+	ErrNoSuchLock = errors.New("webdav: no such lock")
+)
+
+// Condition can match a WebDAV resource, based on a token or ETag.
+// Exactly one of Token and ETag should be non-empty.
+type Condition struct {
+	Not   bool
+	Token string
+	ETag  string
+}
+
+// LockSystem manages access to a collection of named resources. The elements
+// in a lock name are separated by slash ('/', U+002F) characters, regardless
+// of host operating system convention.
+type LockSystem interface {
+	// Confirm confirms that the caller can claim all of the locks specified by
+	// the given conditions, and that holding the union of all of those locks
+	// gives exclusive access to all of the named resources. Up to two resources
+	// can be named. Empty names are ignored.
+	//
+	// Exactly one of release and err will be non-nil. If release is non-nil,
+	// all of the requested locks are held until release is called. Calling
+	// release does not unlock the lock, in the WebDAV UNLOCK sense, but once
+	// Confirm has confirmed that a lock claim is valid, that lock cannot be
+	// Confirmed again until it has been released.
+	//
+	// If Confirm returns ErrConfirmationFailed then the Handler will continue
+	// to try any other set of locks presented (a WebDAV HTTP request can
+	// present more than one set of locks). If it returns any other non-nil
+	// error, the Handler will write a "500 Internal Server Error" HTTP status.
+	Confirm(now time.Time, name0, name1 string, conditions ...Condition) (release func(), err error)
+
+	// Create creates a lock with the given depth, duration, owner and root
+	// (name). The depth will either be negative (meaning infinite) or zero.
+	//
+	// If Create returns ErrLocked then the Handler will write a "423 Locked"
+	// HTTP status. If it returns any other non-nil error, the Handler will
+	// write a "500 Internal Server Error" HTTP status.
+	//
+	// See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.10.6 for
+	// when to use each error.
+	//
+	// The token returned identifies the created lock. It should be an absolute
+	// URI as defined by RFC 3986, Section 4.3. In particular, it should not
+	// contain whitespace.
+	Create(now time.Time, details LockDetails) (token string, err error)
+
+	// Refresh refreshes the lock with the given token.
+	//
+	// If Refresh returns ErrLocked then the Handler will write a "423 Locked"
+	// HTTP Status. If Refresh returns ErrNoSuchLock then the Handler will write
+	// a "412 Precondition Failed" HTTP Status. If it returns any other non-nil
+	// error, the Handler will write a "500 Internal Server Error" HTTP status.
+	//
+	// See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.10.6 for
+	// when to use each error.
+	Refresh(now time.Time, token string, duration time.Duration) (LockDetails, error)
+
+	// Unlock unlocks the lock with the given token.
+	//
+	// If Unlock returns ErrForbidden then the Handler will write a "403
+	// Forbidden" HTTP Status. If Unlock returns ErrLocked then the Handler
+	// will write a "423 Locked" HTTP status. If Unlock returns ErrNoSuchLock
+	// then the Handler will write a "409 Conflict" HTTP Status. If it returns
+	// any other non-nil error, the Handler will write a "500 Internal Server
+	// Error" HTTP status.
+	//
+	// See http://www.webdav.org/specs/rfc4918.html#rfc.section.9.11.1 for
+	// when to use each error.
+	Unlock(now time.Time, token string) error
+}
+
+// LockDetails are a lock's metadata.
+type LockDetails struct {
+	// Root is the root resource name being locked. For a zero-depth lock, the
+	// root is the only resource being locked.
+	Root string
+	// Duration is the lock timeout. A negative duration means infinite.
+	Duration time.Duration
+	// OwnerXML is the verbatim <owner> XML given in a LOCK HTTP request.
+	//
+	// TODO: does the "verbatim" nature play well with XML namespaces?
+	// Does the OwnerXML field need to have more structure? See
+	// https://codereview.appspot.com/175140043/#msg2
+	OwnerXML string
+	// ZeroDepth is whether the lock has zero depth. If it does not have zero
+	// depth, it has infinite depth.
+	ZeroDepth bool
+}
+
+// NewMemLS returns a new in-memory LockSystem.
+func NewMemLS() LockSystem {
+	return &memLS{
+		byName:  make(map[string]*memLSNode),
+		byToken: make(map[string]*memLSNode),
+		gen:     uint64(time.Now().Unix()),
+	}
+}
+
+type memLS struct {
+	mu      sync.Mutex
+	byName  map[string]*memLSNode
+	byToken map[string]*memLSNode
+	gen     uint64
+	// byExpiry only contains those nodes whose LockDetails have a finite
+	// Duration and are yet to expire.
+	byExpiry byExpiry
+}
+
+func (m *memLS) nextToken() string {
+	m.gen++
+	return strconv.FormatUint(m.gen, 10)
+}
+
+func (m *memLS) collectExpiredNodes(now time.Time) {
+	for len(m.byExpiry) > 0 {
+		if now.Before(m.byExpiry[0].expiry) {
+			break
+		}
+		m.remove(m.byExpiry[0])
+	}
+}
+
+func (m *memLS) Confirm(now time.Time, name0, name1 string, conditions ...Condition) (func(), error) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.collectExpiredNodes(now)
+
+	var n0, n1 *memLSNode
+	if name0 != "" {
+		if n0 = m.lookup(slashClean(name0), conditions...); n0 == nil {
+			return nil, ErrConfirmationFailed
+		}
+	}
+	if name1 != "" {
+		if n1 = m.lookup(slashClean(name1), conditions...); n1 == nil {
+			return nil, ErrConfirmationFailed
+		}
+	}
+
+	// Don't hold the same node twice.
+	if n1 == n0 {
+		n1 = nil
+	}
+
+	if n0 != nil {
+		m.hold(n0)
+	}
+	if n1 != nil {
+		m.hold(n1)
+	}
+	return func() {
+		m.mu.Lock()
+		defer m.mu.Unlock()
+		if n1 != nil {
+			m.unhold(n1)
+		}
+		if n0 != nil {
+			m.unhold(n0)
+		}
+	}, nil
+}
+
+// lookup returns the node n that locks the named resource, provided that n
+// matches at least one of the given conditions and that lock isn't held by
+// another party. Otherwise, it returns nil.
+//
+// n may be a parent of the named resource, if n is an infinite depth lock.
+func (m *memLS) lookup(name string, conditions ...Condition) (n *memLSNode) {
+	// TODO: support Condition.Not and Condition.ETag.
+	for _, c := range conditions {
+		n = m.byToken[c.Token]
+		if n == nil || n.held {
+			continue
+		}
+		if name == n.details.Root {
+			return n
+		}
+		if n.details.ZeroDepth {
+			continue
+		}
+		if n.details.Root == "/" || strings.HasPrefix(name, n.details.Root+"/") {
+			return n
+		}
+	}
+	return nil
+}
+
+func (m *memLS) hold(n *memLSNode) {
+	if n.held {
+		panic("webdav: memLS inconsistent held state")
+	}
+	n.held = true
+	if n.details.Duration >= 0 && n.byExpiryIndex >= 0 {
+		heap.Remove(&m.byExpiry, n.byExpiryIndex)
+	}
+}
+
+func (m *memLS) unhold(n *memLSNode) {
+	if !n.held {
+		panic("webdav: memLS inconsistent held state")
+	}
+	n.held = false
+	if n.details.Duration >= 0 {
+		heap.Push(&m.byExpiry, n)
+	}
+}
+
+func (m *memLS) Create(now time.Time, details LockDetails) (string, error) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.collectExpiredNodes(now)
+	details.Root = slashClean(details.Root)
+
+	if !m.canCreate(details.Root, details.ZeroDepth) {
+		return "", ErrLocked
+	}
+	n := m.create(details.Root)
+	n.token = m.nextToken()
+	m.byToken[n.token] = n
+	n.details = details
+	if n.details.Duration >= 0 {
+		n.expiry = now.Add(n.details.Duration)
+		heap.Push(&m.byExpiry, n)
+	}
+	return n.token, nil
+}
+
+func (m *memLS) Refresh(now time.Time, token string, duration time.Duration) (LockDetails, error) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.collectExpiredNodes(now)
+
+	n := m.byToken[token]
+	if n == nil {
+		return LockDetails{}, ErrNoSuchLock
+	}
+	if n.held {
+		return LockDetails{}, ErrLocked
+	}
+	if n.byExpiryIndex >= 0 {
+		heap.Remove(&m.byExpiry, n.byExpiryIndex)
+	}
+	n.details.Duration = duration
+	if n.details.Duration >= 0 {
+		n.expiry = now.Add(n.details.Duration)
+		heap.Push(&m.byExpiry, n)
+	}
+	return n.details, nil
+}
+
+func (m *memLS) Unlock(now time.Time, token string) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.collectExpiredNodes(now)
+
+	n := m.byToken[token]
+	if n == nil {
+		return ErrNoSuchLock
+	}
+	if n.held {
+		return ErrLocked
+	}
+	m.remove(n)
+	return nil
+}
+
+func (m *memLS) canCreate(name string, zeroDepth bool) bool {
+	return walkToRoot(name, func(name0 string, first bool) bool {
+		n := m.byName[name0]
+		if n == nil {
+			return true
+		}
+		if first {
+			if n.token != "" {
+				// The target node is already locked.
+				return false
+			}
+			if !zeroDepth {
+				// The requested lock depth is infinite, and the fact that n exists
+				// (n != nil) means that a descendent of the target node is locked.
+				return false
+			}
+		} else if n.token != "" && !n.details.ZeroDepth {
+			// An ancestor of the target node is locked with infinite depth.
+			return false
+		}
+		return true
+	})
+}
+
+func (m *memLS) create(name string) (ret *memLSNode) {
+	walkToRoot(name, func(name0 string, first bool) bool {
+		n := m.byName[name0]
+		if n == nil {
+			n = &memLSNode{
+				details: LockDetails{
+					Root: name0,
+				},
+				byExpiryIndex: -1,
+			}
+			m.byName[name0] = n
+		}
+		n.refCount++
+		if first {
+			ret = n
+		}
+		return true
+	})
+	return ret
+}
+
+func (m *memLS) remove(n *memLSNode) {
+	delete(m.byToken, n.token)
+	n.token = ""
+	walkToRoot(n.details.Root, func(name0 string, first bool) bool {
+		x := m.byName[name0]
+		x.refCount--
+		if x.refCount == 0 {
+			delete(m.byName, name0)
+		}
+		return true
+	})
+	if n.byExpiryIndex >= 0 {
+		heap.Remove(&m.byExpiry, n.byExpiryIndex)
+	}
+}
+
+func walkToRoot(name string, f func(name0 string, first bool) bool) bool {
+	for first := true; ; first = false {
+		if !f(name, first) {
+			return false
+		}
+		if name == "/" {
+			break
+		}
+		name = name[:strings.LastIndex(name, "/")]
+		if name == "" {
+			name = "/"
+		}
+	}
+	return true
+}
+
+type memLSNode struct {
+	// details are the lock metadata. Even if this node's name is not explicitly locked,
+	// details.Root will still equal the node's name.
+	details LockDetails
+	// token is the unique identifier for this node's lock. An empty token means that
+	// this node is not explicitly locked.
+	token string
+	// refCount is the number of self-or-descendent nodes that are explicitly locked.
+	refCount int
+	// expiry is when this node's lock expires.
+	expiry time.Time
+	// byExpiryIndex is the index of this node in memLS.byExpiry. It is -1
+	// if this node does not expire, or has expired.
+	byExpiryIndex int
+	// held is whether this node's lock is actively held by a Confirm call.
+	held bool
+}
+
+type byExpiry []*memLSNode
+
+func (b *byExpiry) Len() int {
+	return len(*b)
+}
+
+func (b *byExpiry) Less(i, j int) bool {
+	return (*b)[i].expiry.Before((*b)[j].expiry)
+}
+
+func (b *byExpiry) Swap(i, j int) {
+	(*b)[i], (*b)[j] = (*b)[j], (*b)[i]
+	(*b)[i].byExpiryIndex = i
+	(*b)[j].byExpiryIndex = j
+}
+
+func (b *byExpiry) Push(x interface{}) {
+	n := x.(*memLSNode)
+	n.byExpiryIndex = len(*b)
+	*b = append(*b, n)
+}
+
+func (b *byExpiry) Pop() interface{} {
+	i := len(*b) - 1
+	n := (*b)[i]
+	(*b)[i] = nil
+	n.byExpiryIndex = -1
+	*b = (*b)[:i]
+	return n
+}
+
+const infiniteTimeout = -1
+
+// parseTimeout parses the Timeout HTTP header, as per section 10.7. If s is
+// empty, an infiniteTimeout is returned.
+func parseTimeout(s string) (time.Duration, error) {
+	if s == "" {
+		return infiniteTimeout, nil
+	}
+	if i := strings.IndexByte(s, ','); i >= 0 {
+		s = s[:i]
+	}
+	s = strings.TrimSpace(s)
+	if s == "Infinite" {
+		return infiniteTimeout, nil
+	}
+	const pre = "Second-"
+	if !strings.HasPrefix(s, pre) {
+		return 0, errInvalidTimeout
+	}
+	s = s[len(pre):]
+	if s == "" || s[0] < '0' || '9' < s[0] {
+		return 0, errInvalidTimeout
+	}
+	n, err := strconv.ParseInt(s, 10, 64)
+	if err != nil || 1<<32-1 < n {
+		return 0, errInvalidTimeout
+	}
+	return time.Duration(n) * time.Second, nil
+}

vendor/golang.org/x/net/webdav/prop.go

@@ -0,0 +1,469 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package webdav
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+)
+
+// Proppatch describes a property update instruction as defined in RFC 4918.
+// See http://www.webdav.org/specs/rfc4918.html#METHOD_PROPPATCH
+type Proppatch struct {
+	// Remove specifies whether this patch removes properties. If it does not
+	// remove them, it sets them.
+	Remove bool
+	// Props contains the properties to be set or removed.
+	Props []Property
+}
+
+// Propstat describes a XML propstat element as defined in RFC 4918.
+// See http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat
+type Propstat struct {
+	// Props contains the properties for which Status applies.
+	Props []Property
+
+	// Status defines the HTTP status code of the properties in Prop.
+	// Allowed values include, but are not limited to the WebDAV status
+	// code extensions for HTTP/1.1.
+	// http://www.webdav.org/specs/rfc4918.html#status.code.extensions.to.http11
+	Status int
+
+	// XMLError contains the XML representation of the optional error element.
+	// XML content within this field must not rely on any predefined
+	// namespace declarations or prefixes. If empty, the XML error element
+	// is omitted.
+	XMLError string
+
+	// ResponseDescription contains the contents of the optional
+	// responsedescription field. If empty, the XML element is omitted.
+	ResponseDescription string
+}
+
+// makePropstats returns a slice containing those of x and y whose Props slice
+// is non-empty. If both are empty, it returns a slice containing an otherwise
+// zero Propstat whose HTTP status code is 200 OK.
+func makePropstats(x, y Propstat) []Propstat {
+	pstats := make([]Propstat, 0, 2)
+	if len(x.Props) != 0 {
+		pstats = append(pstats, x)
+	}
+	if len(y.Props) != 0 {
+		pstats = append(pstats, y)
+	}
+	if len(pstats) == 0 {
+		pstats = append(pstats, Propstat{
+			Status: http.StatusOK,
+		})
+	}
+	return pstats
+}
+
+// DeadPropsHolder holds the dead properties of a resource.
+//
+// Dead properties are those properties that are explicitly defined. In
+// comparison, live properties, such as DAV:getcontentlength, are implicitly
+// defined by the underlying resource, and cannot be explicitly overridden or
+// removed. See the Terminology section of
+// http://www.webdav.org/specs/rfc4918.html#rfc.section.3
+//
+// There is a whitelist of the names of live properties. This package handles
+// all live properties, and will only pass non-whitelisted names to the Patch
+// method of DeadPropsHolder implementations.
+type DeadPropsHolder interface {
+	// DeadProps returns a copy of the dead properties held.
+	DeadProps() (map[xml.Name]Property, error)
+
+	// Patch patches the dead properties held.
+	//
+	// Patching is atomic; either all or no patches succeed. It returns (nil,
+	// non-nil) if an internal server error occurred, otherwise the Propstats
+	// collectively contain one Property for each proposed patch Property. If
+	// all patches succeed, Patch returns a slice of length one and a Propstat
+	// element with a 200 OK HTTP status code. If none succeed, for reasons
+	// other than an internal server error, no Propstat has status 200 OK.
+	//
+	// For more details on when various HTTP status codes apply, see
+	// http://www.webdav.org/specs/rfc4918.html#PROPPATCH-status
+	Patch([]Proppatch) ([]Propstat, error)
+}
+
+// liveProps contains all supported, protected DAV: properties.
+var liveProps = map[xml.Name]struct {
+	// findFn implements the propfind function of this property. If nil,
+	// it indicates a hidden property.
+	findFn func(context.Context, FileSystem, LockSystem, string, os.FileInfo) (string, error)
+	// dir is true if the property applies to directories.
+	dir bool
+}{
+	{Space: "DAV:", Local: "resourcetype"}: {
+		findFn: findResourceType,
+		dir:    true,
+	},
+	{Space: "DAV:", Local: "displayname"}: {
+		findFn: findDisplayName,
+		dir:    true,
+	},
+	{Space: "DAV:", Local: "getcontentlength"}: {
+		findFn: findContentLength,
+		dir:    false,
+	},
+	{Space: "DAV:", Local: "getlastmodified"}: {
+		findFn: findLastModified,
+		// http://webdav.org/specs/rfc4918.html#PROPERTY_getlastmodified
+		// suggests that getlastmodified should only apply to GETable
+		// resources, and this package does not support GET on directories.
+		//
+		// Nonetheless, some WebDAV clients expect child directories to be
+		// sortable by getlastmodified date, so this value is true, not false.
+		// See golang.org/issue/15334.
+		dir: true,
+	},
+	{Space: "DAV:", Local: "creationdate"}: {
+		findFn: nil,
+		dir:    false,
+	},
+	{Space: "DAV:", Local: "getcontentlanguage"}: {
+		findFn: nil,
+		dir:    false,
+	},
+	{Space: "DAV:", Local: "getcontenttype"}: {
+		findFn: findContentType,
+		dir:    false,
+	},
+	{Space: "DAV:", Local: "getetag"}: {
+		findFn: findETag,
+		// findETag implements ETag as the concatenated hex values of a file's
+		// modification time and size. This is not a reliable synchronization
+		// mechanism for directories, so we do not advertise getetag for DAV
+		// collections.
+		dir: false,
+	},
+
+	// TODO: The lockdiscovery property requires LockSystem to list the
+	// active locks on a resource.
+	{Space: "DAV:", Local: "lockdiscovery"}: {},
+	{Space: "DAV:", Local: "supportedlock"}: {
+		findFn: findSupportedLock,
+		dir:    true,
+	},
+}
+
+// TODO(nigeltao) merge props and allprop?
+
+// Props returns the status of the properties named pnames for resource name.
+//
+// Each Propstat has a unique status and each property name will only be part
+// of one Propstat element.
+func props(ctx context.Context, fs FileSystem, ls LockSystem, name string, pnames []xml.Name) ([]Propstat, error) {
+	f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	fi, err := f.Stat()
+	if err != nil {
+		return nil, err
+	}
+	isDir := fi.IsDir()
+
+	var deadProps map[xml.Name]Property
+	if dph, ok := f.(DeadPropsHolder); ok {
+		deadProps, err = dph.DeadProps()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	pstatOK := Propstat{Status: http.StatusOK}
+	pstatNotFound := Propstat{Status: http.StatusNotFound}
+	for _, pn := range pnames {
+		// If this file has dead properties, check if they contain pn.
+		if dp, ok := deadProps[pn]; ok {
+			pstatOK.Props = append(pstatOK.Props, dp)
+			continue
+		}
+		// Otherwise, it must either be a live property or we don't know it.
+		if prop := liveProps[pn]; prop.findFn != nil && (prop.dir || !isDir) {
+			innerXML, err := prop.findFn(ctx, fs, ls, name, fi)
+			if err != nil {
+				return nil, err
+			}
+			pstatOK.Props = append(pstatOK.Props, Property{
+				XMLName:  pn,
+				InnerXML: []byte(innerXML),
+			})
+		} else {
+			pstatNotFound.Props = append(pstatNotFound.Props, Property{
+				XMLName: pn,
+			})
+		}
+	}
+	return makePropstats(pstatOK, pstatNotFound), nil
+}
+
+// Propnames returns the property names defined for resource name.
+func propnames(ctx context.Context, fs FileSystem, ls LockSystem, name string) ([]xml.Name, error) {
+	f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	fi, err := f.Stat()
+	if err != nil {
+		return nil, err
+	}
+	isDir := fi.IsDir()
+
+	var deadProps map[xml.Name]Property
+	if dph, ok := f.(DeadPropsHolder); ok {
+		deadProps, err = dph.DeadProps()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	pnames := make([]xml.Name, 0, len(liveProps)+len(deadProps))
+	for pn, prop := range liveProps {
+		if prop.findFn != nil && (prop.dir || !isDir) {
+			pnames = append(pnames, pn)
+		}
+	}
+	for pn := range deadProps {
+		pnames = append(pnames, pn)
+	}
+	return pnames, nil
+}
+
+// Allprop returns the properties defined for resource name and the properties
+// named in include.
+//
+// Note that RFC 4918 defines 'allprop' to return the DAV: properties defined
+// within the RFC plus dead properties. Other live properties should only be
+// returned if they are named in 'include'.
+//
+// See http://www.webdav.org/specs/rfc4918.html#METHOD_PROPFIND
+func allprop(ctx context.Context, fs FileSystem, ls LockSystem, name string, include []xml.Name) ([]Propstat, error) {
+	pnames, err := propnames(ctx, fs, ls, name)
+	if err != nil {
+		return nil, err
+	}
+	// Add names from include if they are not already covered in pnames.
+	nameset := make(map[xml.Name]bool)
+	for _, pn := range pnames {
+		nameset[pn] = true
+	}
+	for _, pn := range include {
+		if !nameset[pn] {
+			pnames = append(pnames, pn)
+		}
+	}
+	return props(ctx, fs, ls, name, pnames)
+}
+
+// Patch patches the properties of resource name. The return values are
+// constrained in the same manner as DeadPropsHolder.Patch.
+func patch(ctx context.Context, fs FileSystem, ls LockSystem, name string, patches []Proppatch) ([]Propstat, error) {
+	conflict := false
+loop:
+	for _, patch := range patches {
+		for _, p := range patch.Props {
+			if _, ok := liveProps[p.XMLName]; ok {
+				conflict = true
+				break loop
+			}
+		}
+	}
+	if conflict {
+		pstatForbidden := Propstat{
+			Status:   http.StatusForbidden,
+			XMLError: `<D:cannot-modify-protected-property xmlns:D="DAV:"/>`,
+		}
+		pstatFailedDep := Propstat{
+			Status: StatusFailedDependency,
+		}
+		for _, patch := range patches {
+			for _, p := range patch.Props {
+				if _, ok := liveProps[p.XMLName]; ok {
+					pstatForbidden.Props = append(pstatForbidden.Props, Property{XMLName: p.XMLName})
+				} else {
+					pstatFailedDep.Props = append(pstatFailedDep.Props, Property{XMLName: p.XMLName})
+				}
+			}
+		}
+		return makePropstats(pstatForbidden, pstatFailedDep), nil
+	}
+
+	f, err := fs.OpenFile(ctx, name, os.O_RDWR, 0)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	if dph, ok := f.(DeadPropsHolder); ok {
+		ret, err := dph.Patch(patches)
+		if err != nil {
+			return nil, err
+		}
+		// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat says that
+		// "The contents of the prop XML element must only list the names of
+		// properties to which the result in the status element applies."
+		for _, pstat := range ret {
+			for i, p := range pstat.Props {
+				pstat.Props[i] = Property{XMLName: p.XMLName}
+			}
+		}
+		return ret, nil
+	}
+	// The file doesn't implement the optional DeadPropsHolder interface, so
+	// all patches are forbidden.
+	pstat := Propstat{Status: http.StatusForbidden}
+	for _, patch := range patches {
+		for _, p := range patch.Props {
+			pstat.Props = append(pstat.Props, Property{XMLName: p.XMLName})
+		}
+	}
+	return []Propstat{pstat}, nil
+}
+
+func escapeXML(s string) string {
+	for i := 0; i < len(s); i++ {
+		// As an optimization, if s contains only ASCII letters, digits or a
+		// few special characters, the escaped value is s itself and we don't
+		// need to allocate a buffer and convert between string and []byte.
+		switch c := s[i]; {
+		case c == ' ' || c == '_' ||
+			('+' <= c && c <= '9') || // Digits as well as + , - . and /
+			('A' <= c && c <= 'Z') ||
+			('a' <= c && c <= 'z'):
+			continue
+		}
+		// Otherwise, go through the full escaping process.
+		var buf bytes.Buffer
+		xml.EscapeText(&buf, []byte(s))
+		return buf.String()
+	}
+	return s
+}
+
+func findResourceType(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	if fi.IsDir() {
+		return `<D:collection xmlns:D="DAV:"/>`, nil
+	}
+	return "", nil
+}
+
+func findDisplayName(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	if slashClean(name) == "/" {
+		// Hide the real name of a possibly prefixed root directory.
+		return "", nil
+	}
+	return escapeXML(fi.Name()), nil
+}
+
+func findContentLength(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	return strconv.FormatInt(fi.Size(), 10), nil
+}
+
+func findLastModified(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	return fi.ModTime().UTC().Format(http.TimeFormat), nil
+}
+
+// ErrNotImplemented should be returned by optional interfaces if they
+// want the original implementation to be used.
+var ErrNotImplemented = errors.New("not implemented")
+
+// ContentTyper is an optional interface for the os.FileInfo
+// objects returned by the FileSystem.
+//
+// If this interface is defined then it will be used to read the
+// content type from the object.
+//
+// If this interface is not defined the file will be opened and the
+// content type will be guessed from the initial contents of the file.
+type ContentTyper interface {
+	// ContentType returns the content type for the file.
+	//
+	// If this returns error ErrNotImplemented then the error will
+	// be ignored and the base implementation will be used
+	// instead.
+	ContentType(ctx context.Context) (string, error)
+}
+
+func findContentType(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	if do, ok := fi.(ContentTyper); ok {
+		ctype, err := do.ContentType(ctx)
+		if err != ErrNotImplemented {
+			return ctype, err
+		}
+	}
+	f, err := fs.OpenFile(ctx, name, os.O_RDONLY, 0)
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+	// This implementation is based on serveContent's code in the standard net/http package.
+	ctype := mime.TypeByExtension(filepath.Ext(name))
+	if ctype != "" {
+		return ctype, nil
+	}
+	// Read a chunk to decide between utf-8 text and binary.
+	var buf [512]byte
+	n, err := io.ReadFull(f, buf[:])
+	if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
+		return "", err
+	}
+	ctype = http.DetectContentType(buf[:n])
+	// Rewind file.
+	_, err = f.Seek(0, os.SEEK_SET)
+	return ctype, err
+}
+
+// ETager is an optional interface for the os.FileInfo objects
+// returned by the FileSystem.
+//
+// If this interface is defined then it will be used to read the ETag
+// for the object.
+//
+// If this interface is not defined an ETag will be computed using the
+// ModTime() and the Size() methods of the os.FileInfo object.
+type ETager interface {
+	// ETag returns an ETag for the file.  This should be of the
+	// form "value" or W/"value"
+	//
+	// If this returns error ErrNotImplemented then the error will
+	// be ignored and the base implementation will be used
+	// instead.
+	ETag(ctx context.Context) (string, error)
+}
+
+func findETag(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	if do, ok := fi.(ETager); ok {
+		etag, err := do.ETag(ctx)
+		if err != ErrNotImplemented {
+			return etag, err
+		}
+	}
+	// The Apache http 2.4 web server by default concatenates the
+	// modification time and size of a file. We replicate the heuristic
+	// with nanosecond granularity.
+	return fmt.Sprintf(`"%x%x"`, fi.ModTime().UnixNano(), fi.Size()), nil
+}
+
+func findSupportedLock(ctx context.Context, fs FileSystem, ls LockSystem, name string, fi os.FileInfo) (string, error) {
+	return `` +
+		`<D:lockentry xmlns:D="DAV:">` +
+		`<D:lockscope><D:exclusive/></D:lockscope>` +
+		`<D:locktype><D:write/></D:locktype>` +
+		`</D:lockentry>`, nil
+}

vendor/golang.org/x/net/webdav/webdav.go

@@ -0,0 +1,706 @@
+// 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 webdav provides a WebDAV server implementation.
+package webdav // import "golang.org/x/net/webdav"
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"path"
+	"strings"
+	"time"
+)
+
+type Handler struct {
+	// Prefix is the URL path prefix to strip from WebDAV resource paths.
+	Prefix string
+	// FileSystem is the virtual file system.
+	FileSystem FileSystem
+	// LockSystem is the lock management system.
+	LockSystem LockSystem
+	// Logger is an optional error logger. If non-nil, it will be called
+	// for all HTTP requests.
+	Logger func(*http.Request, error)
+}
+
+func (h *Handler) stripPrefix(p string) (string, int, error) {
+	if h.Prefix == "" {
+		return p, http.StatusOK, nil
+	}
+	if r := strings.TrimPrefix(p, h.Prefix); len(r) < len(p) {
+		return r, http.StatusOK, nil
+	}
+	return p, http.StatusNotFound, errPrefixMismatch
+}
+
+func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	status, err := http.StatusBadRequest, errUnsupportedMethod
+	if h.FileSystem == nil {
+		status, err = http.StatusInternalServerError, errNoFileSystem
+	} else if h.LockSystem == nil {
+		status, err = http.StatusInternalServerError, errNoLockSystem
+	} else {
+		switch r.Method {
+		case "OPTIONS":
+			status, err = h.handleOptions(w, r)
+		case "GET", "HEAD", "POST":
+			status, err = h.handleGetHeadPost(w, r)
+		case "DELETE":
+			status, err = h.handleDelete(w, r)
+		case "PUT":
+			status, err = h.handlePut(w, r)
+		case "MKCOL":
+			status, err = h.handleMkcol(w, r)
+		case "COPY", "MOVE":
+			status, err = h.handleCopyMove(w, r)
+		case "LOCK":
+			status, err = h.handleLock(w, r)
+		case "UNLOCK":
+			status, err = h.handleUnlock(w, r)
+		case "PROPFIND":
+			status, err = h.handlePropfind(w, r)
+		case "PROPPATCH":
+			status, err = h.handleProppatch(w, r)
+		}
+	}
+
+	if status != 0 {
+		w.WriteHeader(status)
+		if status != http.StatusNoContent {
+			w.Write([]byte(StatusText(status)))
+		}
+	}
+	if h.Logger != nil {
+		h.Logger(r, err)
+	}
+}
+
+func (h *Handler) lock(now time.Time, root string) (token string, status int, err error) {
+	token, err = h.LockSystem.Create(now, LockDetails{
+		Root:      root,
+		Duration:  infiniteTimeout,
+		ZeroDepth: true,
+	})
+	if err != nil {
+		if err == ErrLocked {
+			return "", StatusLocked, err
+		}
+		return "", http.StatusInternalServerError, err
+	}
+	return token, 0, nil
+}
+
+func (h *Handler) confirmLocks(r *http.Request, src, dst string) (release func(), status int, err error) {
+	hdr := r.Header.Get("If")
+	if hdr == "" {
+		// An empty If header means that the client hasn't previously created locks.
+		// Even if this client doesn't care about locks, we still need to check that
+		// the resources aren't locked by another client, so we create temporary
+		// locks that would conflict with another client's locks. These temporary
+		// locks are unlocked at the end of the HTTP request.
+		now, srcToken, dstToken := time.Now(), "", ""
+		if src != "" {
+			srcToken, status, err = h.lock(now, src)
+			if err != nil {
+				return nil, status, err
+			}
+		}
+		if dst != "" {
+			dstToken, status, err = h.lock(now, dst)
+			if err != nil {
+				if srcToken != "" {
+					h.LockSystem.Unlock(now, srcToken)
+				}
+				return nil, status, err
+			}
+		}
+
+		return func() {
+			if dstToken != "" {
+				h.LockSystem.Unlock(now, dstToken)
+			}
+			if srcToken != "" {
+				h.LockSystem.Unlock(now, srcToken)
+			}
+		}, 0, nil
+	}
+
+	ih, ok := parseIfHeader(hdr)
+	if !ok {
+		return nil, http.StatusBadRequest, errInvalidIfHeader
+	}
+	// ih is a disjunction (OR) of ifLists, so any ifList will do.
+	for _, l := range ih.lists {
+		lsrc := l.resourceTag
+		if lsrc == "" {
+			lsrc = src
+		} else {
+			u, err := url.Parse(lsrc)
+			if err != nil {
+				continue
+			}
+			if u.Host != r.Host {
+				continue
+			}
+			lsrc, status, err = h.stripPrefix(u.Path)
+			if err != nil {
+				return nil, status, err
+			}
+		}
+		release, err = h.LockSystem.Confirm(time.Now(), lsrc, dst, l.conditions...)
+		if err == ErrConfirmationFailed {
+			continue
+		}
+		if err != nil {
+			return nil, http.StatusInternalServerError, err
+		}
+		return release, 0, nil
+	}
+	// Section 10.4.1 says that "If this header is evaluated and all state lists
+	// fail, then the request must fail with a 412 (Precondition Failed) status."
+	// We follow the spec even though the cond_put_corrupt_token test case from
+	// the litmus test warns on seeing a 412 instead of a 423 (Locked).
+	return nil, http.StatusPreconditionFailed, ErrLocked
+}
+
+func (h *Handler) handleOptions(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	ctx := r.Context()
+	allow := "OPTIONS, LOCK, PUT, MKCOL"
+	if fi, err := h.FileSystem.Stat(ctx, reqPath); err == nil {
+		if fi.IsDir() {
+			allow = "OPTIONS, LOCK, DELETE, PROPPATCH, COPY, MOVE, UNLOCK, PROPFIND"
+		} else {
+			allow = "OPTIONS, LOCK, GET, HEAD, POST, DELETE, PROPPATCH, COPY, MOVE, UNLOCK, PROPFIND, PUT"
+		}
+	}
+	w.Header().Set("Allow", allow)
+	// http://www.webdav.org/specs/rfc4918.html#dav.compliance.classes
+	w.Header().Set("DAV", "1, 2")
+	// http://msdn.microsoft.com/en-au/library/cc250217.aspx
+	w.Header().Set("MS-Author-Via", "DAV")
+	return 0, nil
+}
+
+func (h *Handler) handleGetHeadPost(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	// TODO: check locks for read-only access??
+	ctx := r.Context()
+	f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDONLY, 0)
+	if err != nil {
+		return http.StatusNotFound, err
+	}
+	defer f.Close()
+	fi, err := f.Stat()
+	if err != nil {
+		return http.StatusNotFound, err
+	}
+	if fi.IsDir() {
+		return http.StatusMethodNotAllowed, nil
+	}
+	etag, err := findETag(ctx, h.FileSystem, h.LockSystem, reqPath, fi)
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+	w.Header().Set("ETag", etag)
+	// Let ServeContent determine the Content-Type header.
+	http.ServeContent(w, r, reqPath, fi.ModTime(), f)
+	return 0, nil
+}
+
+func (h *Handler) handleDelete(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	release, status, err := h.confirmLocks(r, reqPath, "")
+	if err != nil {
+		return status, err
+	}
+	defer release()
+
+	ctx := r.Context()
+
+	// TODO: return MultiStatus where appropriate.
+
+	// "godoc os RemoveAll" says that "If the path does not exist, RemoveAll
+	// returns nil (no error)." WebDAV semantics are that it should return a
+	// "404 Not Found". We therefore have to Stat before we RemoveAll.
+	if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusNotFound, err
+		}
+		return http.StatusMethodNotAllowed, err
+	}
+	if err := h.FileSystem.RemoveAll(ctx, reqPath); err != nil {
+		return http.StatusMethodNotAllowed, err
+	}
+	return http.StatusNoContent, nil
+}
+
+func (h *Handler) handlePut(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	release, status, err := h.confirmLocks(r, reqPath, "")
+	if err != nil {
+		return status, err
+	}
+	defer release()
+	// TODO(rost): Support the If-Match, If-None-Match headers? See bradfitz'
+	// comments in http.checkEtag.
+	ctx := r.Context()
+
+	f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
+	if err != nil {
+		return http.StatusNotFound, err
+	}
+	_, copyErr := io.Copy(f, r.Body)
+	fi, statErr := f.Stat()
+	closeErr := f.Close()
+	// TODO(rost): Returning 405 Method Not Allowed might not be appropriate.
+	if copyErr != nil {
+		return http.StatusMethodNotAllowed, copyErr
+	}
+	if statErr != nil {
+		return http.StatusMethodNotAllowed, statErr
+	}
+	if closeErr != nil {
+		return http.StatusMethodNotAllowed, closeErr
+	}
+	etag, err := findETag(ctx, h.FileSystem, h.LockSystem, reqPath, fi)
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+	w.Header().Set("ETag", etag)
+	return http.StatusCreated, nil
+}
+
+func (h *Handler) handleMkcol(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	release, status, err := h.confirmLocks(r, reqPath, "")
+	if err != nil {
+		return status, err
+	}
+	defer release()
+
+	ctx := r.Context()
+
+	if r.ContentLength > 0 {
+		return http.StatusUnsupportedMediaType, nil
+	}
+	if err := h.FileSystem.Mkdir(ctx, reqPath, 0777); err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusConflict, err
+		}
+		return http.StatusMethodNotAllowed, err
+	}
+	return http.StatusCreated, nil
+}
+
+func (h *Handler) handleCopyMove(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	hdr := r.Header.Get("Destination")
+	if hdr == "" {
+		return http.StatusBadRequest, errInvalidDestination
+	}
+	u, err := url.Parse(hdr)
+	if err != nil {
+		return http.StatusBadRequest, errInvalidDestination
+	}
+	if u.Host != r.Host {
+		return http.StatusBadGateway, errInvalidDestination
+	}
+
+	src, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+
+	dst, status, err := h.stripPrefix(u.Path)
+	if err != nil {
+		return status, err
+	}
+
+	if dst == "" {
+		return http.StatusBadGateway, errInvalidDestination
+	}
+	if dst == src {
+		return http.StatusForbidden, errDestinationEqualsSource
+	}
+
+	ctx := r.Context()
+
+	if r.Method == "COPY" {
+		// Section 7.5.1 says that a COPY only needs to lock the destination,
+		// not both destination and source. Strictly speaking, this is racy,
+		// even though a COPY doesn't modify the source, if a concurrent
+		// operation modifies the source. However, the litmus test explicitly
+		// checks that COPYing a locked-by-another source is OK.
+		release, status, err := h.confirmLocks(r, "", dst)
+		if err != nil {
+			return status, err
+		}
+		defer release()
+
+		// Section 9.8.3 says that "The COPY method on a collection without a Depth
+		// header must act as if a Depth header with value "infinity" was included".
+		depth := infiniteDepth
+		if hdr := r.Header.Get("Depth"); hdr != "" {
+			depth = parseDepth(hdr)
+			if depth != 0 && depth != infiniteDepth {
+				// Section 9.8.3 says that "A client may submit a Depth header on a
+				// COPY on a collection with a value of "0" or "infinity"."
+				return http.StatusBadRequest, errInvalidDepth
+			}
+		}
+		return copyFiles(ctx, h.FileSystem, src, dst, r.Header.Get("Overwrite") != "F", depth, 0)
+	}
+
+	release, status, err := h.confirmLocks(r, src, dst)
+	if err != nil {
+		return status, err
+	}
+	defer release()
+
+	// Section 9.9.2 says that "The MOVE method on a collection must act as if
+	// a "Depth: infinity" header was used on it. A client must not submit a
+	// Depth header on a MOVE on a collection with any value but "infinity"."
+	if hdr := r.Header.Get("Depth"); hdr != "" {
+		if parseDepth(hdr) != infiniteDepth {
+			return http.StatusBadRequest, errInvalidDepth
+		}
+	}
+	return moveFiles(ctx, h.FileSystem, src, dst, r.Header.Get("Overwrite") == "T")
+}
+
+func (h *Handler) handleLock(w http.ResponseWriter, r *http.Request) (retStatus int, retErr error) {
+	duration, err := parseTimeout(r.Header.Get("Timeout"))
+	if err != nil {
+		return http.StatusBadRequest, err
+	}
+	li, status, err := readLockInfo(r.Body)
+	if err != nil {
+		return status, err
+	}
+
+	ctx := r.Context()
+	token, ld, now, created := "", LockDetails{}, time.Now(), false
+	if li == (lockInfo{}) {
+		// An empty lockInfo means to refresh the lock.
+		ih, ok := parseIfHeader(r.Header.Get("If"))
+		if !ok {
+			return http.StatusBadRequest, errInvalidIfHeader
+		}
+		if len(ih.lists) == 1 && len(ih.lists[0].conditions) == 1 {
+			token = ih.lists[0].conditions[0].Token
+		}
+		if token == "" {
+			return http.StatusBadRequest, errInvalidLockToken
+		}
+		ld, err = h.LockSystem.Refresh(now, token, duration)
+		if err != nil {
+			if err == ErrNoSuchLock {
+				return http.StatusPreconditionFailed, err
+			}
+			return http.StatusInternalServerError, err
+		}
+
+	} else {
+		// Section 9.10.3 says that "If no Depth header is submitted on a LOCK request,
+		// then the request MUST act as if a "Depth:infinity" had been submitted."
+		depth := infiniteDepth
+		if hdr := r.Header.Get("Depth"); hdr != "" {
+			depth = parseDepth(hdr)
+			if depth != 0 && depth != infiniteDepth {
+				// Section 9.10.3 says that "Values other than 0 or infinity must not be
+				// used with the Depth header on a LOCK method".
+				return http.StatusBadRequest, errInvalidDepth
+			}
+		}
+		reqPath, status, err := h.stripPrefix(r.URL.Path)
+		if err != nil {
+			return status, err
+		}
+		ld = LockDetails{
+			Root:      reqPath,
+			Duration:  duration,
+			OwnerXML:  li.Owner.InnerXML,
+			ZeroDepth: depth == 0,
+		}
+		token, err = h.LockSystem.Create(now, ld)
+		if err != nil {
+			if err == ErrLocked {
+				return StatusLocked, err
+			}
+			return http.StatusInternalServerError, err
+		}
+		defer func() {
+			if retErr != nil {
+				h.LockSystem.Unlock(now, token)
+			}
+		}()
+
+		// Create the resource if it didn't previously exist.
+		if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
+			f, err := h.FileSystem.OpenFile(ctx, reqPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
+			if err != nil {
+				// TODO: detect missing intermediate dirs and return http.StatusConflict?
+				return http.StatusInternalServerError, err
+			}
+			f.Close()
+			created = true
+		}
+
+		// http://www.webdav.org/specs/rfc4918.html#HEADER_Lock-Token says that the
+		// Lock-Token value is a Coded-URL. We add angle brackets.
+		w.Header().Set("Lock-Token", "<"+token+">")
+	}
+
+	w.Header().Set("Content-Type", "application/xml; charset=utf-8")
+	if created {
+		// This is "w.WriteHeader(http.StatusCreated)" and not "return
+		// http.StatusCreated, nil" because we write our own (XML) response to w
+		// and Handler.ServeHTTP would otherwise write "Created".
+		w.WriteHeader(http.StatusCreated)
+	}
+	writeLockInfo(w, token, ld)
+	return 0, nil
+}
+
+func (h *Handler) handleUnlock(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	// http://www.webdav.org/specs/rfc4918.html#HEADER_Lock-Token says that the
+	// Lock-Token value is a Coded-URL. We strip its angle brackets.
+	t := r.Header.Get("Lock-Token")
+	if len(t) < 2 || t[0] != '<' || t[len(t)-1] != '>' {
+		return http.StatusBadRequest, errInvalidLockToken
+	}
+	t = t[1 : len(t)-1]
+
+	switch err = h.LockSystem.Unlock(time.Now(), t); err {
+	case nil:
+		return http.StatusNoContent, err
+	case ErrForbidden:
+		return http.StatusForbidden, err
+	case ErrLocked:
+		return StatusLocked, err
+	case ErrNoSuchLock:
+		return http.StatusConflict, err
+	default:
+		return http.StatusInternalServerError, err
+	}
+}
+
+func (h *Handler) handlePropfind(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	ctx := r.Context()
+	fi, err := h.FileSystem.Stat(ctx, reqPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusNotFound, err
+		}
+		return http.StatusMethodNotAllowed, err
+	}
+	depth := infiniteDepth
+	if hdr := r.Header.Get("Depth"); hdr != "" {
+		depth = parseDepth(hdr)
+		if depth == invalidDepth {
+			return http.StatusBadRequest, errInvalidDepth
+		}
+	}
+	pf, status, err := readPropfind(r.Body)
+	if err != nil {
+		return status, err
+	}
+
+	mw := multistatusWriter{w: w}
+
+	walkFn := func(reqPath string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		var pstats []Propstat
+		if pf.Propname != nil {
+			pnames, err := propnames(ctx, h.FileSystem, h.LockSystem, reqPath)
+			if err != nil {
+				return err
+			}
+			pstat := Propstat{Status: http.StatusOK}
+			for _, xmlname := range pnames {
+				pstat.Props = append(pstat.Props, Property{XMLName: xmlname})
+			}
+			pstats = append(pstats, pstat)
+		} else if pf.Allprop != nil {
+			pstats, err = allprop(ctx, h.FileSystem, h.LockSystem, reqPath, pf.Prop)
+		} else {
+			pstats, err = props(ctx, h.FileSystem, h.LockSystem, reqPath, pf.Prop)
+		}
+		if err != nil {
+			return err
+		}
+		href := path.Join(h.Prefix, reqPath)
+		if href != "/" && info.IsDir() {
+			href += "/"
+		}
+		return mw.write(makePropstatResponse(href, pstats))
+	}
+
+	walkErr := walkFS(ctx, h.FileSystem, depth, reqPath, fi, walkFn)
+	closeErr := mw.close()
+	if walkErr != nil {
+		return http.StatusInternalServerError, walkErr
+	}
+	if closeErr != nil {
+		return http.StatusInternalServerError, closeErr
+	}
+	return 0, nil
+}
+
+func (h *Handler) handleProppatch(w http.ResponseWriter, r *http.Request) (status int, err error) {
+	reqPath, status, err := h.stripPrefix(r.URL.Path)
+	if err != nil {
+		return status, err
+	}
+	release, status, err := h.confirmLocks(r, reqPath, "")
+	if err != nil {
+		return status, err
+	}
+	defer release()
+
+	ctx := r.Context()
+
+	if _, err := h.FileSystem.Stat(ctx, reqPath); err != nil {
+		if os.IsNotExist(err) {
+			return http.StatusNotFound, err
+		}
+		return http.StatusMethodNotAllowed, err
+	}
+	patches, status, err := readProppatch(r.Body)
+	if err != nil {
+		return status, err
+	}
+	pstats, err := patch(ctx, h.FileSystem, h.LockSystem, reqPath, patches)
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+	mw := multistatusWriter{w: w}
+	writeErr := mw.write(makePropstatResponse(r.URL.Path, pstats))
+	closeErr := mw.close()
+	if writeErr != nil {
+		return http.StatusInternalServerError, writeErr
+	}
+	if closeErr != nil {
+		return http.StatusInternalServerError, closeErr
+	}
+	return 0, nil
+}
+
+func makePropstatResponse(href string, pstats []Propstat) *response {
+	resp := response{
+		Href:     []string{(&url.URL{Path: href}).EscapedPath()},
+		Propstat: make([]propstat, 0, len(pstats)),
+	}
+	for _, p := range pstats {
+		var xmlErr *xmlError
+		if p.XMLError != "" {
+			xmlErr = &xmlError{InnerXML: []byte(p.XMLError)}
+		}
+		resp.Propstat = append(resp.Propstat, propstat{
+			Status:              fmt.Sprintf("HTTP/1.1 %d %s", p.Status, StatusText(p.Status)),
+			Prop:                p.Props,
+			ResponseDescription: p.ResponseDescription,
+			Error:               xmlErr,
+		})
+	}
+	return &resp
+}
+
+const (
+	infiniteDepth = -1
+	invalidDepth  = -2
+)
+
+// parseDepth maps the strings "0", "1" and "infinity" to 0, 1 and
+// infiniteDepth. Parsing any other string returns invalidDepth.
+//
+// Different WebDAV methods have further constraints on valid depths:
+//	- PROPFIND has no further restrictions, as per section 9.1.
+//	- COPY accepts only "0" or "infinity", as per section 9.8.3.
+//	- MOVE accepts only "infinity", as per section 9.9.2.
+//	- LOCK accepts only "0" or "infinity", as per section 9.10.3.
+// These constraints are enforced by the handleXxx methods.
+func parseDepth(s string) int {
+	switch s {
+	case "0":
+		return 0
+	case "1":
+		return 1
+	case "infinity":
+		return infiniteDepth
+	}
+	return invalidDepth
+}
+
+// http://www.webdav.org/specs/rfc4918.html#status.code.extensions.to.http11
+const (
+	StatusMulti               = 207
+	StatusUnprocessableEntity = 422
+	StatusLocked              = 423
+	StatusFailedDependency    = 424
+	StatusInsufficientStorage = 507
+)
+
+func StatusText(code int) string {
+	switch code {
+	case StatusMulti:
+		return "Multi-Status"
+	case StatusUnprocessableEntity:
+		return "Unprocessable Entity"
+	case StatusLocked:
+		return "Locked"
+	case StatusFailedDependency:
+		return "Failed Dependency"
+	case StatusInsufficientStorage:
+		return "Insufficient Storage"
+	}
+	return http.StatusText(code)
+}
+
+var (
+	errDestinationEqualsSource = errors.New("webdav: destination equals source")
+	errDirectoryNotEmpty       = errors.New("webdav: directory not empty")
+	errInvalidDepth            = errors.New("webdav: invalid depth")
+	errInvalidDestination      = errors.New("webdav: invalid destination")
+	errInvalidIfHeader         = errors.New("webdav: invalid If header")
+	errInvalidLockInfo         = errors.New("webdav: invalid lock info")
+	errInvalidLockToken        = errors.New("webdav: invalid lock token")
+	errInvalidPropfind         = errors.New("webdav: invalid propfind")
+	errInvalidProppatch        = errors.New("webdav: invalid proppatch")
+	errInvalidResponse         = errors.New("webdav: invalid response")
+	errInvalidTimeout          = errors.New("webdav: invalid timeout")
+	errNoFileSystem            = errors.New("webdav: no file system")
+	errNoLockSystem            = errors.New("webdav: no lock system")
+	errNotADirectory           = errors.New("webdav: not a directory")
+	errPrefixMismatch          = errors.New("webdav: prefix mismatch")
+	errRecursionTooDeep        = errors.New("webdav: recursion too deep")
+	errUnsupportedLockInfo     = errors.New("webdav: unsupported lock info")
+	errUnsupportedMethod       = errors.New("webdav: unsupported method")
+)

vendor/golang.org/x/net/webdav/xml.go

@@ -0,0 +1,519 @@
+// 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 webdav
+
+// The XML encoding is covered by Section 14.
+// http://www.webdav.org/specs/rfc4918.html#xml.element.definitions
+
+import (
+	"bytes"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	// As of https://go-review.googlesource.com/#/c/12772/ which was submitted
+	// in July 2015, this package uses an internal fork of the standard
+	// library's encoding/xml package, due to changes in the way namespaces
+	// were encoded. Such changes were introduced in the Go 1.5 cycle, but were
+	// rolled back in response to https://github.com/golang/go/issues/11841
+	//
+	// However, this package's exported API, specifically the Property and
+	// DeadPropsHolder types, need to refer to the standard library's version
+	// of the xml.Name type, as code that imports this package cannot refer to
+	// the internal version.
+	//
+	// This file therefore imports both the internal and external versions, as
+	// ixml and xml, and converts between them.
+	//
+	// In the long term, this package should use the standard library's version
+	// only, and the internal fork deleted, once
+	// https://github.com/golang/go/issues/13400 is resolved.
+	ixml "golang.org/x/net/webdav/internal/xml"
+)
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_lockinfo
+type lockInfo struct {
+	XMLName   ixml.Name `xml:"lockinfo"`
+	Exclusive *struct{} `xml:"lockscope>exclusive"`
+	Shared    *struct{} `xml:"lockscope>shared"`
+	Write     *struct{} `xml:"locktype>write"`
+	Owner     owner     `xml:"owner"`
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_owner
+type owner struct {
+	InnerXML string `xml:",innerxml"`
+}
+
+func readLockInfo(r io.Reader) (li lockInfo, status int, err error) {
+	c := &countingReader{r: r}
+	if err = ixml.NewDecoder(c).Decode(&li); err != nil {
+		if err == io.EOF {
+			if c.n == 0 {
+				// An empty body means to refresh the lock.
+				// http://www.webdav.org/specs/rfc4918.html#refreshing-locks
+				return lockInfo{}, 0, nil
+			}
+			err = errInvalidLockInfo
+		}
+		return lockInfo{}, http.StatusBadRequest, err
+	}
+	// We only support exclusive (non-shared) write locks. In practice, these are
+	// the only types of locks that seem to matter.
+	if li.Exclusive == nil || li.Shared != nil || li.Write == nil {
+		return lockInfo{}, http.StatusNotImplemented, errUnsupportedLockInfo
+	}
+	return li, 0, nil
+}
+
+type countingReader struct {
+	n int
+	r io.Reader
+}
+
+func (c *countingReader) Read(p []byte) (int, error) {
+	n, err := c.r.Read(p)
+	c.n += n
+	return n, err
+}
+
+func writeLockInfo(w io.Writer, token string, ld LockDetails) (int, error) {
+	depth := "infinity"
+	if ld.ZeroDepth {
+		depth = "0"
+	}
+	timeout := ld.Duration / time.Second
+	return fmt.Fprintf(w, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"+
+		"<D:prop xmlns:D=\"DAV:\"><D:lockdiscovery><D:activelock>\n"+
+		"	<D:locktype><D:write/></D:locktype>\n"+
+		"	<D:lockscope><D:exclusive/></D:lockscope>\n"+
+		"	<D:depth>%s</D:depth>\n"+
+		"	<D:owner>%s</D:owner>\n"+
+		"	<D:timeout>Second-%d</D:timeout>\n"+
+		"	<D:locktoken><D:href>%s</D:href></D:locktoken>\n"+
+		"	<D:lockroot><D:href>%s</D:href></D:lockroot>\n"+
+		"</D:activelock></D:lockdiscovery></D:prop>",
+		depth, ld.OwnerXML, timeout, escape(token), escape(ld.Root),
+	)
+}
+
+func escape(s string) string {
+	for i := 0; i < len(s); i++ {
+		switch s[i] {
+		case '"', '&', '\'', '<', '>':
+			b := bytes.NewBuffer(nil)
+			ixml.EscapeText(b, []byte(s))
+			return b.String()
+		}
+	}
+	return s
+}
+
+// Next returns the next token, if any, in the XML stream of d.
+// RFC 4918 requires to ignore comments, processing instructions
+// and directives.
+// http://www.webdav.org/specs/rfc4918.html#property_values
+// http://www.webdav.org/specs/rfc4918.html#xml-extensibility
+func next(d *ixml.Decoder) (ixml.Token, error) {
+	for {
+		t, err := d.Token()
+		if err != nil {
+			return t, err
+		}
+		switch t.(type) {
+		case ixml.Comment, ixml.Directive, ixml.ProcInst:
+			continue
+		default:
+			return t, nil
+		}
+	}
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_prop (for propfind)
+type propfindProps []xml.Name
+
+// UnmarshalXML appends the property names enclosed within start to pn.
+//
+// It returns an error if start does not contain any properties or if
+// properties contain values. Character data between properties is ignored.
+func (pn *propfindProps) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
+	for {
+		t, err := next(d)
+		if err != nil {
+			return err
+		}
+		switch t.(type) {
+		case ixml.EndElement:
+			if len(*pn) == 0 {
+				return fmt.Errorf("%s must not be empty", start.Name.Local)
+			}
+			return nil
+		case ixml.StartElement:
+			name := t.(ixml.StartElement).Name
+			t, err = next(d)
+			if err != nil {
+				return err
+			}
+			if _, ok := t.(ixml.EndElement); !ok {
+				return fmt.Errorf("unexpected token %T", t)
+			}
+			*pn = append(*pn, xml.Name(name))
+		}
+	}
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propfind
+type propfind struct {
+	XMLName  ixml.Name     `xml:"DAV: propfind"`
+	Allprop  *struct{}     `xml:"DAV: allprop"`
+	Propname *struct{}     `xml:"DAV: propname"`
+	Prop     propfindProps `xml:"DAV: prop"`
+	Include  propfindProps `xml:"DAV: include"`
+}
+
+func readPropfind(r io.Reader) (pf propfind, status int, err error) {
+	c := countingReader{r: r}
+	if err = ixml.NewDecoder(&c).Decode(&pf); err != nil {
+		if err == io.EOF {
+			if c.n == 0 {
+				// An empty body means to propfind allprop.
+				// http://www.webdav.org/specs/rfc4918.html#METHOD_PROPFIND
+				return propfind{Allprop: new(struct{})}, 0, nil
+			}
+			err = errInvalidPropfind
+		}
+		return propfind{}, http.StatusBadRequest, err
+	}
+
+	if pf.Allprop == nil && pf.Include != nil {
+		return propfind{}, http.StatusBadRequest, errInvalidPropfind
+	}
+	if pf.Allprop != nil && (pf.Prop != nil || pf.Propname != nil) {
+		return propfind{}, http.StatusBadRequest, errInvalidPropfind
+	}
+	if pf.Prop != nil && pf.Propname != nil {
+		return propfind{}, http.StatusBadRequest, errInvalidPropfind
+	}
+	if pf.Propname == nil && pf.Allprop == nil && pf.Prop == nil {
+		return propfind{}, http.StatusBadRequest, errInvalidPropfind
+	}
+	return pf, 0, nil
+}
+
+// Property represents a single DAV resource property as defined in RFC 4918.
+// See http://www.webdav.org/specs/rfc4918.html#data.model.for.resource.properties
+type Property struct {
+	// XMLName is the fully qualified name that identifies this property.
+	XMLName xml.Name
+
+	// Lang is an optional xml:lang attribute.
+	Lang string `xml:"xml:lang,attr,omitempty"`
+
+	// InnerXML contains the XML representation of the property value.
+	// See http://www.webdav.org/specs/rfc4918.html#property_values
+	//
+	// Property values of complex type or mixed-content must have fully
+	// expanded XML namespaces or be self-contained with according
+	// XML namespace declarations. They must not rely on any XML
+	// namespace declarations within the scope of the XML document,
+	// even including the DAV: namespace.
+	InnerXML []byte `xml:",innerxml"`
+}
+
+// ixmlProperty is the same as the Property type except it holds an ixml.Name
+// instead of an xml.Name.
+type ixmlProperty struct {
+	XMLName  ixml.Name
+	Lang     string `xml:"xml:lang,attr,omitempty"`
+	InnerXML []byte `xml:",innerxml"`
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_error
+// See multistatusWriter for the "D:" namespace prefix.
+type xmlError struct {
+	XMLName  ixml.Name `xml:"D:error"`
+	InnerXML []byte    `xml:",innerxml"`
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propstat
+// See multistatusWriter for the "D:" namespace prefix.
+type propstat struct {
+	Prop                []Property `xml:"D:prop>_ignored_"`
+	Status              string     `xml:"D:status"`
+	Error               *xmlError  `xml:"D:error"`
+	ResponseDescription string     `xml:"D:responsedescription,omitempty"`
+}
+
+// ixmlPropstat is the same as the propstat type except it holds an ixml.Name
+// instead of an xml.Name.
+type ixmlPropstat struct {
+	Prop                []ixmlProperty `xml:"D:prop>_ignored_"`
+	Status              string         `xml:"D:status"`
+	Error               *xmlError      `xml:"D:error"`
+	ResponseDescription string         `xml:"D:responsedescription,omitempty"`
+}
+
+// MarshalXML prepends the "D:" namespace prefix on properties in the DAV: namespace
+// before encoding. See multistatusWriter.
+func (ps propstat) MarshalXML(e *ixml.Encoder, start ixml.StartElement) error {
+	// Convert from a propstat to an ixmlPropstat.
+	ixmlPs := ixmlPropstat{
+		Prop:                make([]ixmlProperty, len(ps.Prop)),
+		Status:              ps.Status,
+		Error:               ps.Error,
+		ResponseDescription: ps.ResponseDescription,
+	}
+	for k, prop := range ps.Prop {
+		ixmlPs.Prop[k] = ixmlProperty{
+			XMLName:  ixml.Name(prop.XMLName),
+			Lang:     prop.Lang,
+			InnerXML: prop.InnerXML,
+		}
+	}
+
+	for k, prop := range ixmlPs.Prop {
+		if prop.XMLName.Space == "DAV:" {
+			prop.XMLName = ixml.Name{Space: "", Local: "D:" + prop.XMLName.Local}
+			ixmlPs.Prop[k] = prop
+		}
+	}
+	// Distinct type to avoid infinite recursion of MarshalXML.
+	type newpropstat ixmlPropstat
+	return e.EncodeElement(newpropstat(ixmlPs), start)
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_response
+// See multistatusWriter for the "D:" namespace prefix.
+type response struct {
+	XMLName             ixml.Name  `xml:"D:response"`
+	Href                []string   `xml:"D:href"`
+	Propstat            []propstat `xml:"D:propstat"`
+	Status              string     `xml:"D:status,omitempty"`
+	Error               *xmlError  `xml:"D:error"`
+	ResponseDescription string     `xml:"D:responsedescription,omitempty"`
+}
+
+// MultistatusWriter marshals one or more Responses into a XML
+// multistatus response.
+// See http://www.webdav.org/specs/rfc4918.html#ELEMENT_multistatus
+// TODO(rsto, mpl): As a workaround, the "D:" namespace prefix, defined as
+// "DAV:" on this element, is prepended on the nested response, as well as on all
+// its nested elements. All property names in the DAV: namespace are prefixed as
+// well. This is because some versions of Mini-Redirector (on windows 7) ignore
+// elements with a default namespace (no prefixed namespace). A less intrusive fix
+// should be possible after golang.org/cl/11074. See https://golang.org/issue/11177
+type multistatusWriter struct {
+	// ResponseDescription contains the optional responsedescription
+	// of the multistatus XML element. Only the latest content before
+	// close will be emitted. Empty response descriptions are not
+	// written.
+	responseDescription string
+
+	w   http.ResponseWriter
+	enc *ixml.Encoder
+}
+
+// Write validates and emits a DAV response as part of a multistatus response
+// element.
+//
+// It sets the HTTP status code of its underlying http.ResponseWriter to 207
+// (Multi-Status) and populates the Content-Type header. If r is the
+// first, valid response to be written, Write prepends the XML representation
+// of r with a multistatus tag. Callers must call close after the last response
+// has been written.
+func (w *multistatusWriter) write(r *response) error {
+	switch len(r.Href) {
+	case 0:
+		return errInvalidResponse
+	case 1:
+		if len(r.Propstat) > 0 != (r.Status == "") {
+			return errInvalidResponse
+		}
+	default:
+		if len(r.Propstat) > 0 || r.Status == "" {
+			return errInvalidResponse
+		}
+	}
+	err := w.writeHeader()
+	if err != nil {
+		return err
+	}
+	return w.enc.Encode(r)
+}
+
+// writeHeader writes a XML multistatus start element on w's underlying
+// http.ResponseWriter and returns the result of the write operation.
+// After the first write attempt, writeHeader becomes a no-op.
+func (w *multistatusWriter) writeHeader() error {
+	if w.enc != nil {
+		return nil
+	}
+	w.w.Header().Add("Content-Type", "text/xml; charset=utf-8")
+	w.w.WriteHeader(StatusMulti)
+	_, err := fmt.Fprintf(w.w, `<?xml version="1.0" encoding="UTF-8"?>`)
+	if err != nil {
+		return err
+	}
+	w.enc = ixml.NewEncoder(w.w)
+	return w.enc.EncodeToken(ixml.StartElement{
+		Name: ixml.Name{
+			Space: "DAV:",
+			Local: "multistatus",
+		},
+		Attr: []ixml.Attr{{
+			Name:  ixml.Name{Space: "xmlns", Local: "D"},
+			Value: "DAV:",
+		}},
+	})
+}
+
+// Close completes the marshalling of the multistatus response. It returns
+// an error if the multistatus response could not be completed. If both the
+// return value and field enc of w are nil, then no multistatus response has
+// been written.
+func (w *multistatusWriter) close() error {
+	if w.enc == nil {
+		return nil
+	}
+	var end []ixml.Token
+	if w.responseDescription != "" {
+		name := ixml.Name{Space: "DAV:", Local: "responsedescription"}
+		end = append(end,
+			ixml.StartElement{Name: name},
+			ixml.CharData(w.responseDescription),
+			ixml.EndElement{Name: name},
+		)
+	}
+	end = append(end, ixml.EndElement{
+		Name: ixml.Name{Space: "DAV:", Local: "multistatus"},
+	})
+	for _, t := range end {
+		err := w.enc.EncodeToken(t)
+		if err != nil {
+			return err
+		}
+	}
+	return w.enc.Flush()
+}
+
+var xmlLangName = ixml.Name{Space: "http://www.w3.org/XML/1998/namespace", Local: "lang"}
+
+func xmlLang(s ixml.StartElement, d string) string {
+	for _, attr := range s.Attr {
+		if attr.Name == xmlLangName {
+			return attr.Value
+		}
+	}
+	return d
+}
+
+type xmlValue []byte
+
+func (v *xmlValue) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
+	// The XML value of a property can be arbitrary, mixed-content XML.
+	// To make sure that the unmarshalled value contains all required
+	// namespaces, we encode all the property value XML tokens into a
+	// buffer. This forces the encoder to redeclare any used namespaces.
+	var b bytes.Buffer
+	e := ixml.NewEncoder(&b)
+	for {
+		t, err := next(d)
+		if err != nil {
+			return err
+		}
+		if e, ok := t.(ixml.EndElement); ok && e.Name == start.Name {
+			break
+		}
+		if err = e.EncodeToken(t); err != nil {
+			return err
+		}
+	}
+	err := e.Flush()
+	if err != nil {
+		return err
+	}
+	*v = b.Bytes()
+	return nil
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_prop (for proppatch)
+type proppatchProps []Property
+
+// UnmarshalXML appends the property names and values enclosed within start
+// to ps.
+//
+// An xml:lang attribute that is defined either on the DAV:prop or property
+// name XML element is propagated to the property's Lang field.
+//
+// UnmarshalXML returns an error if start does not contain any properties or if
+// property values contain syntactically incorrect XML.
+func (ps *proppatchProps) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
+	lang := xmlLang(start, "")
+	for {
+		t, err := next(d)
+		if err != nil {
+			return err
+		}
+		switch elem := t.(type) {
+		case ixml.EndElement:
+			if len(*ps) == 0 {
+				return fmt.Errorf("%s must not be empty", start.Name.Local)
+			}
+			return nil
+		case ixml.StartElement:
+			p := Property{
+				XMLName: xml.Name(t.(ixml.StartElement).Name),
+				Lang:    xmlLang(t.(ixml.StartElement), lang),
+			}
+			err = d.DecodeElement(((*xmlValue)(&p.InnerXML)), &elem)
+			if err != nil {
+				return err
+			}
+			*ps = append(*ps, p)
+		}
+	}
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_set
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_remove
+type setRemove struct {
+	XMLName ixml.Name
+	Lang    string         `xml:"xml:lang,attr,omitempty"`
+	Prop    proppatchProps `xml:"DAV: prop"`
+}
+
+// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propertyupdate
+type propertyupdate struct {
+	XMLName   ixml.Name   `xml:"DAV: propertyupdate"`
+	Lang      string      `xml:"xml:lang,attr,omitempty"`
+	SetRemove []setRemove `xml:",any"`
+}
+
+func readProppatch(r io.Reader) (patches []Proppatch, status int, err error) {
+	var pu propertyupdate
+	if err = ixml.NewDecoder(r).Decode(&pu); err != nil {
+		return nil, http.StatusBadRequest, err
+	}
+	for _, op := range pu.SetRemove {
+		remove := false
+		switch op.XMLName {
+		case ixml.Name{Space: "DAV:", Local: "set"}:
+			// No-op.
+		case ixml.Name{Space: "DAV:", Local: "remove"}:
+			for _, p := range op.Prop {
+				if len(p.InnerXML) > 0 {
+					return nil, http.StatusBadRequest, errInvalidProppatch
+				}
+			}
+			remove = true
+		default:
+			return nil, http.StatusBadRequest, errInvalidProppatch
+		}
+		patches = append(patches, Proppatch{Remove: remove, Props: op.Prop})
+	}
+	return patches, 0, nil
+}

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

@@ -1,61 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-// mkasm_darwin.go generates assembly trampolines to call libSystem routines from Go.
-//This program must be run after mksyscall.go.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"strings"
-)
-
-func main() {
-	in1, err := ioutil.ReadFile("syscall_darwin.go")
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin.go: %s", err)
-	}
-	arch := os.Args[1]
-	in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err)
-	}
-	in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch))
-	if err != nil {
-		log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err)
-	}
-	in := string(in1) + string(in2) + string(in3)
-
-	trampolines := map[string]bool{}
-
-	var out bytes.Buffer
-
-	fmt.Fprintf(&out, "// go run mkasm_darwin.go %s\n", strings.Join(os.Args[1:], " "))
-	fmt.Fprintf(&out, "// Code generated by the command above; DO NOT EDIT.\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "// +build go1.12\n")
-	fmt.Fprintf(&out, "\n")
-	fmt.Fprintf(&out, "#include \"textflag.h\"\n")
-	for _, line := range strings.Split(in, "\n") {
-		if !strings.HasPrefix(line, "func ") || !strings.HasSuffix(line, "_trampoline()") {
-			continue
-		}
-		fn := line[5 : len(line)-13]
-		if !trampolines[fn] {
-			trampolines[fn] = true
-			fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn)
-			fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
-		}
-	}
-	err = ioutil.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644)
-	if err != nil {
-		log.Fatalf("can't write zsyscall_darwin_%s.s: %s", arch, err)
-	}
-}

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

@@ -1,106 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-// mkpost processes the output of cgo -godefs to
-// modify the generated types. It is used to clean up
-// the sys API in an architecture specific manner.
-//
-// mkpost is run after cgo -godefs; see README.md.
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"go/format"
-	"io/ioutil"
-	"log"
-	"os"
-	"regexp"
-)
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check that we are using the Docker-based build system if we should be.
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			os.Stderr.WriteString("In the Docker-based build system, mkpost should not be called directly.\n")
-			os.Stderr.WriteString("See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	b, err := ioutil.ReadAll(os.Stdin)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Intentionally export __val fields in Fsid and Sigset_t
-	valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__val(\s+\S+\s+)}`)
-	b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$3}"))
-
-	// Intentionally export __fds_bits field in FdSet
-	fdSetRegex := regexp.MustCompile(`type (FdSet) struct {(\s+)X__fds_bits(\s+\S+\s+)}`)
-	b = fdSetRegex.ReplaceAll(b, []byte("type $1 struct {${2}Bits$3}"))
-
-	// If we have empty Ptrace structs, we should delete them. Only s390x emits
-	// nonempty Ptrace structs.
-	ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
-	b = ptraceRexexp.ReplaceAll(b, nil)
-
-	// Replace the control_regs union with a blank identifier for now.
-	controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`)
-	b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64"))
-
-	// Remove fields that are added by glibc
-	// Note that this is unstable as the identifers are private.
-	removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Convert [65]int8 to [65]byte in Utsname members to simplify
-	// conversion to string; see golang.org/issue/20753
-	convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`)
-	b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte"))
-
-	// Convert [1024]int8 to [1024]byte in Ptmget members
-	convertPtmget := regexp.MustCompile(`([SC]n)(\s+)\[(\d+)\]u?int8`)
-	b = convertPtmget.ReplaceAll(b, []byte("$1[$3]byte"))
-
-	// Remove spare fields (e.g. in Statx_t)
-	spareFieldsRegex := regexp.MustCompile(`X__spare\S*`)
-	b = spareFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove cgo padding fields
-	removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
-	b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove padding, hidden, or unused fields
-	removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`)
-	b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
-
-	// Remove the first line of warning from cgo
-	b = b[bytes.IndexByte(b, '\n')+1:]
-	// Modify the command in the header to include:
-	//  mkpost, our own warning, and a build tag.
-	replacement := fmt.Sprintf(`$1 | go run mkpost.go
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s,%s`, goarch, goos)
-	cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`)
-	b = cgoCommandRegex.ReplaceAll(b, []byte(replacement))
-
-	// gofmt
-	b, err = format.Source(b)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	os.Stdout.Write(b)
-}

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

@@ -1,407 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_darwin.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named errno.
-
-A line beginning with //sysnb is like //sys, except that the
-goroutine will not be suspended during the execution of the system
-call.  This must only be used for system calls which can never
-block, as otherwise the system call could cause all goroutines to
-hang.
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32       = flag.Bool("b32", false, "32bit big-endian")
-	l32       = flag.Bool("l32", false, "32bit little-endian")
-	plan9     = flag.Bool("plan9", false, "plan9")
-	openbsd   = flag.Bool("openbsd", false, "openbsd")
-	netbsd    = flag.Bool("netbsd", false, "netbsd")
-	dragonfly = flag.Bool("dragonfly", false, "dragonfly")
-	arm       = flag.Bool("arm", false, "arm") // 64-bit value should use (even, odd)-pair
-	tags      = flag.String("tags", "", "build tags")
-	filename  = flag.String("output", "", "output file name (standard output if omitted)")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	// Get the OS and architecture (using GOARCH_TARGET if it exists)
-	goos := os.Getenv("GOOS")
-	if goos == "" {
-		fmt.Fprintln(os.Stderr, "GOOS not defined in environment")
-		os.Exit(1)
-	}
-	goarch := os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-
-	// Check that we are using the Docker-based build system if we should
-	if goos == "linux" {
-		if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
-			fmt.Fprintf(os.Stderr, "In the Docker-based build system, mksyscall should not be called directly.\n")
-			fmt.Fprintf(os.Stderr, "See README.md\n")
-			os.Exit(1)
-		}
-	}
-
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	libc := false
-	if goos == "darwin" && strings.Contains(buildTags(), ",go1.12") {
-		libc = true
-	}
-	trampolines := map[string]bool{}
-
-	text := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, errno error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, sysname := f[2], f[3], f[4], f[5]
-
-			// ClockGettime doesn't have a syscall number on Darwin, only generate libc wrappers.
-			if goos == "darwin" && !libc && funct == "ClockGettime" {
-				continue
-			}
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// Go function header.
-			outDecl := ""
-			if len(out) > 0 {
-				outDecl = fmt.Sprintf(" (%s)", strings.Join(out, ", "))
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outDecl)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					break
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, %s = BytePtrFromString(%s)\n", n, errvar, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d *byte\n", n)
-					text += fmt.Sprintf("\t_p%d, _ = BytePtrFromString(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass dummy pointer in that case.
-					// Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
-					text += fmt.Sprintf("\tvar _p%d unsafe.Pointer\n", n)
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = unsafe.Pointer(&%s[0])\n\t}", p.Name, n, p.Name)
-					text += fmt.Sprintf(" else {\n\t\t_p%d = unsafe.Pointer(&_zero)\n\t}\n", n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && (*openbsd || *netbsd) {
-					args = append(args, "0")
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if p.Type == "int64" && *dragonfly {
-					if regexp.MustCompile(`^(?i)extp(read|write)`).FindStringSubmatch(funct) == nil {
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else if endianness == "little-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-					}
-				} else if (p.Type == "int64" || p.Type == "uint64") && endianness != "" {
-					if len(args)%2 == 1 && *arm {
-						// arm abi specifies 64-bit argument uses
-						// (even, odd) pair
-						args = append(args, "0")
-					}
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-
-			// Determine which form to use; pad args with zeros.
-			asm := "Syscall"
-			if nonblock != nil {
-				if errvar == "" && goos == "linux" {
-					asm = "RawSyscallNoError"
-				} else {
-					asm = "RawSyscall"
-				}
-			} else {
-				if errvar == "" && goos == "linux" {
-					asm = "SyscallNoError"
-				}
-			}
-			if len(args) <= 3 {
-				for len(args) < 3 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 6 {
-				asm += "6"
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else if len(args) <= 9 {
-				asm += "9"
-				for len(args) < 9 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s:%s too many arguments to system call\n", path, funct)
-			}
-
-			// System call number.
-			if sysname == "" {
-				sysname = "SYS_" + funct
-				sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-				sysname = strings.ToUpper(sysname)
-			}
-
-			var libcFn string
-			if libc {
-				asm = "syscall_" + strings.ToLower(asm[:1]) + asm[1:] // internal syscall call
-				sysname = strings.TrimPrefix(sysname, "SYS_")         // remove SYS_
-				sysname = strings.ToLower(sysname)                    // lowercase
-				if sysname == "getdirentries64" {
-					// Special case - libSystem name and
-					// raw syscall name don't match.
-					sysname = "__getdirentries64"
-				}
-				libcFn = sysname
-				sysname = "funcPC(libc_" + sysname + "_trampoline)"
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(%s, %s)", asm, sysname, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" && !*plan9 {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else if p.Name == "err" && *plan9 {
-					ret[0] = "r0"
-					ret[2] = "e1"
-					break
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s:%s not enough registers for int64 return\n", path, funct)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" || *plan9 {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				if errvar == "" && goos == "linux" {
-					// raw syscall without error on Linux, see golang.org/issue/22924
-					text += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], call)
-				} else {
-					text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-				}
-			}
-			text += body
-
-			if *plan9 && ret[2] == "e1" {
-				text += "\tif int32(r0) == -1 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			} else if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = errnoErr(e1)\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n\n"
-
-			if libc && !trampolines[libcFn] {
-				// some system calls share a trampoline, like read and readlen.
-				trampolines[libcFn] = true
-				// Declare assembly trampoline.
-				text += fmt.Sprintf("func libc_%s_trampoline()\n", libcFn)
-				// Assembly trampoline calls the libc_* function, which this magic
-				// redirects to use the function from libSystem.
-				text += fmt.Sprintf("//go:linkname libc_%s libc_%s\n", libcFn, libcFn)
-				text += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"/usr/lib/libSystem.B.dylib\"\n", libcFn, libcFn)
-				text += "\n"
-			}
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var _ syscall.Errno
-
-%s
-`

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

@@ -1,404 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-*/
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	cExtern := "/*\n#include <stdint.h>\n#include <stddef.h>\n"
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// Check if value return, err return available
-			errvar := ""
-			retvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					retvar = p.Name
-					rettype = p.Type
-				}
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// Change p.Types to c
-			var cIn []string
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if funct != "fcntl" && funct != "FcntlInt" && funct != "readlen" && funct != "writelen" {
-				// Imports of system calls from libc
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-
-			// So file name.
-			if *aix {
-				if modname == "" {
-					modname = "libc.a/shr_64.o"
-				} else {
-					fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-					os.Exit(1)
-				}
-			}
-
-			strconvfunc := "C.CString"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if text != "" {
-				text += "\n"
-			}
-
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "C.uintptr_t(uintptr(unsafe.Pointer("+p.Name+")))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					text += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(unsafe.Pointer(_p%d)))", n))
-					n++
-					text += fmt.Sprintf("\tvar _p%d int\n", n)
-					text += fmt.Sprintf("\t_p%d = len(%s)\n", n, p.Name)
-					args = append(args, fmt.Sprintf("C.size_t(_p%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-					n++
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("_p%d", n))
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "unsafe.Pointer" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 2) && ((funct == "readlen") || (funct == "writelen")) {
-						args = append(args, fmt.Sprintf("C.size_t(%s)", p.Name))
-					} else if argN == 0 && funct == "fcntl" {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else if (argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt")) {
-						args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					args = append(args, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					args = append(args, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					args = append(args, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					args = append(args, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := ""
-			if sysname == "exit" {
-				if errvar != "" {
-					call += "er :="
-				} else {
-					call += ""
-				}
-			} else if errvar != "" {
-				call += "r0,er :="
-			} else if retvar != "" {
-				call += "r0,_ :="
-			} else {
-				call += ""
-			}
-			call += fmt.Sprintf("C.%s(%s)", sysname, arglist)
-
-			// Assign return values.
-			body := ""
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-				} else {
-					reg = "r0"
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-
-			// verify return
-			if sysname != "exit" && errvar != "" {
-				if regexp.MustCompile(`^uintptr`).FindStringSubmatch(cRettype) != nil {
-					body += "\tif (uintptr(r0) ==^uintptr(0) && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				} else {
-					body += "\tif (r0 ==-1 && er != nil) {\n"
-					body += fmt.Sprintf("\t\t%s = er\n", errvar)
-					body += "\t}\n"
-				}
-			} else if errvar != "" {
-				body += "\tif (er != nil) {\n"
-				body += fmt.Sprintf("\t\t%s = er\n", errvar)
-				body += "\t}\n"
-			}
-
-			text += fmt.Sprintf("\t%s\n", call)
-			text += body
-
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, cExtern, imp, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-
-%s
-*/
-import "C"
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`

vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go

@@ -1,602 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-This program reads a file containing function prototypes
-(like syscall_aix.go) and generates system call bodies.
-The prototypes are marked by lines beginning with "//sys"
-and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-
-
-This program will generate three files and handle both gc and gccgo implementation:
-  - zsyscall_aix_ppc64.go: the common part of each implementation (error handler, pointer creation)
-  - zsyscall_aix_ppc64_gc.go: gc part with //go_cgo_import_dynamic and a call to syscall6
-  - zsyscall_aix_ppc64_gccgo.go: gccgo part with C function and conversion to C type.
-
- The generated code looks like this
-
-zsyscall_aix_ppc64.go
-func asyscall(...) (n int, err error) {
-	 // Pointer Creation
-	 r1, e1 := callasyscall(...)
-	 // Type Conversion
-	 // Error Handler
-	 return
-}
-
-zsyscall_aix_ppc64_gc.go
-//go:cgo_import_dynamic libc_asyscall asyscall "libc.a/shr_64.o"
-//go:linkname libc_asyscall libc_asyscall
-var asyscall syscallFunc
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_asyscall)), "nb_args", ... )
-	 return
-}
-
-zsyscall_aix_ppc64_ggcgo.go
-
-// int asyscall(...)
-
-import "C"
-
-func callasyscall(...) (r1 uintptr, e1 Errno) {
-	 r1 = uintptr(C.asyscall(...))
-	 e1 = syscall.GetErrno()
-	 return
-}
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	aix  = flag.Bool("aix", false, "aix")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_aix_ppc64.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc64.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	// GCCGO
-	textgccgo := ""
-	cExtern := "/*\n#include <stdint.h>\n"
-	// GC
-	textgc := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	// COMMON
-	textcommon := ""
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			if sysname == "" {
-				sysname = funct
-			}
-
-			onlyCommon := false
-			if funct == "readlen" || funct == "writelen" || funct == "FcntlInt" || funct == "FcntlFlock" {
-				// This function call another syscall which is already implemented.
-				// Therefore, the gc and gccgo part must not be generated.
-				onlyCommon = true
-			}
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-
-			textcommon += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			if !onlyCommon {
-				textgccgo += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-				textgc += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-			}
-
-			// Check if value return, err return available
-			errvar := ""
-			rettype := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-				} else {
-					rettype = p.Type
-				}
-			}
-
-			sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`)
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// GCCGO Prototype return type
-			cRettype := ""
-			if rettype == "unsafe.Pointer" {
-				cRettype = "uintptr_t"
-			} else if rettype == "uintptr" {
-				cRettype = "uintptr_t"
-			} else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil {
-				cRettype = "uintptr_t"
-			} else if rettype == "int" {
-				cRettype = "int"
-			} else if rettype == "int32" {
-				cRettype = "int"
-			} else if rettype == "int64" {
-				cRettype = "long long"
-			} else if rettype == "uint32" {
-				cRettype = "unsigned int"
-			} else if rettype == "uint64" {
-				cRettype = "unsigned long long"
-			} else {
-				cRettype = "int"
-			}
-			if sysname == "exit" {
-				cRettype = "void"
-			}
-
-			// GCCGO Prototype arguments type
-			var cIn []string
-			for i, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "string" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t", "size_t")
-				} else if p.Type == "unsafe.Pointer" {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "uintptr" {
-					cIn = append(cIn, "uintptr_t")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil {
-					cIn = append(cIn, "uintptr_t")
-				} else if p.Type == "int" {
-					if (i == 0 || i == 2) && funct == "fcntl" {
-						// These fcntl arguments needs to be uintptr to be able to call FcntlInt and FcntlFlock
-						cIn = append(cIn, "uintptr_t")
-					} else {
-						cIn = append(cIn, "int")
-					}
-
-				} else if p.Type == "int32" {
-					cIn = append(cIn, "int")
-				} else if p.Type == "int64" {
-					cIn = append(cIn, "long long")
-				} else if p.Type == "uint32" {
-					cIn = append(cIn, "unsigned int")
-				} else if p.Type == "uint64" {
-					cIn = append(cIn, "unsigned long long")
-				} else {
-					cIn = append(cIn, "int")
-				}
-			}
-
-			if !onlyCommon {
-				// GCCGO Prototype Generation
-				// Imports of system calls from libc
-				cExtern += fmt.Sprintf("%s %s", cRettype, sysname)
-				cIn := strings.Join(cIn, ", ")
-				cExtern += fmt.Sprintf("(%s);\n", cIn)
-			}
-			// GC Library name
-			if modname == "" {
-				modname = "libc.a/shr_64.o"
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct)
-				os.Exit(1)
-			}
-			sysvarname := fmt.Sprintf("libc_%s", sysname)
-
-			if !onlyCommon {
-				// GC Runtime import of function to allow cross-platform builds.
-				dynimports += fmt.Sprintf("//go:cgo_import_dynamic %s %s \"%s\"\n", sysvarname, sysname, modname)
-				// GC Link symbol to proc address variable.
-				linknames += fmt.Sprintf("//go:linkname %s %s\n", sysvarname, sysvarname)
-				// GC Library proc address variable.
-				vars = append(vars, sysvarname)
-			}
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			// Go function header.
-			if outps != "" {
-				outps = fmt.Sprintf(" (%s)", outps)
-			}
-			if textcommon != "" {
-				textcommon += "\n"
-			}
-
-			textcommon += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps)
-
-			// Prepare arguments tocall.
-			var argscommon []string // Arguments in the common part
-			var argscall []string   // Arguments for call prototype
-			var argsgc []string     // Arguments for gc call (with syscall6)
-			var argsgccgo []string  // Arguments for gccgo call (with C.name_of_syscall)
-			n := 0
-			argN := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "string" && errvar != "" {
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr ", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n))
-					n++
-				} else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					textcommon += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1])
-					textcommon += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("len(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n), fmt.Sprintf("_lenp%d int", n))
-					argsgc = append(argsgc, fmt.Sprintf("_p%d", n), fmt.Sprintf("uintptr(_lenp%d)", n))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n), fmt.Sprintf("C.size_t(_lenp%d)", n))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses int64 with 32 bits mode. Case not yet implemented\n")
-				} else if p.Type == "bool" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses bool. Case not yet implemented\n")
-				} else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil || p.Type == "unsafe.Pointer" {
-					argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else if p.Type == "int" {
-					if (argN == 0 || argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt") || (funct == "FcntlFlock")) {
-						// These fcntl arguments need to be uintptr to be able to call FcntlInt and FcntlFlock
-						argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name))
-						argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-						argsgc = append(argsgc, p.Name)
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-
-					} else {
-						argscommon = append(argscommon, p.Name)
-						argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-						argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-						argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-					}
-				} else if p.Type == "int32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				} else if p.Type == "int64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s int64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.longlong(%s)", p.Name))
-				} else if p.Type == "uint32" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint32", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uint(%s)", p.Name))
-				} else if p.Type == "uint64" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uint64", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.ulonglong(%s)", p.Name))
-				} else if p.Type == "uintptr" {
-					argscommon = append(argscommon, p.Name)
-					argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name))
-					argsgc = append(argsgc, p.Name)
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name))
-				} else {
-					argscommon = append(argscommon, fmt.Sprintf("int(%s)", p.Name))
-					argscall = append(argscall, fmt.Sprintf("%s int", p.Name))
-					argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name))
-					argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name))
-				}
-				argN++
-			}
-			nargs := len(argsgc)
-
-			// COMMON function generation
-			argscommonlist := strings.Join(argscommon, ", ")
-			callcommon := fmt.Sprintf("call%s(%s)", sysname, argscommonlist)
-			ret := []string{"_", "_"}
-			body := ""
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[1] = reg
-					doErrno = true
-				} else {
-					reg = "r0"
-					ret[0] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%s != 0", reg)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" {
-				textcommon += fmt.Sprintf("\t%s\n", callcommon)
-			} else {
-				textcommon += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], callcommon)
-			}
-			textcommon += body
-
-			if doErrno {
-				textcommon += "\tif e1 != 0 {\n"
-				textcommon += "\t\terr = errnoErr(e1)\n"
-				textcommon += "\t}\n"
-			}
-			textcommon += "\treturn\n"
-			textcommon += "}\n"
-
-			if onlyCommon {
-				continue
-			}
-
-			// CALL Prototype
-			callProto := fmt.Sprintf("func call%s(%s) (r1 uintptr, e1 Errno) {\n", sysname, strings.Join(argscall, ", "))
-
-			// GC function generation
-			asm := "syscall6"
-			if nonblock != nil {
-				asm = "rawSyscall6"
-			}
-
-			if len(argsgc) <= 6 {
-				for len(argsgc) < 6 {
-					argsgc = append(argsgc, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call", funct)
-				os.Exit(1)
-			}
-			argsgclist := strings.Join(argsgc, ", ")
-			callgc := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, argsgclist)
-
-			textgc += callProto
-			textgc += fmt.Sprintf("\tr1, _, e1 = %s\n", callgc)
-			textgc += "\treturn\n}\n"
-
-			// GCCGO function generation
-			argsgccgolist := strings.Join(argsgccgo, ", ")
-			callgccgo := fmt.Sprintf("C.%s(%s)", sysname, argsgccgolist)
-			textgccgo += callProto
-			textgccgo += fmt.Sprintf("\tr1 = uintptr(%s)\n", callgccgo)
-			textgccgo += "\te1 = syscall.GetErrno()\n"
-			textgccgo += "\treturn\n}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-
-	// Print zsyscall_aix_ppc64.go
-	err := ioutil.WriteFile("zsyscall_aix_ppc64.go",
-		[]byte(fmt.Sprintf(srcTemplate1, cmdLine(), buildTags(), pack, imp, textcommon)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gc.go
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gc.go",
-		[]byte(fmt.Sprintf(srcTemplate2, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, textgc)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-
-	// Print zsyscall_aix_ppc64_gccgo.go
-	err = ioutil.WriteFile("zsyscall_aix_ppc64_gccgo.go",
-		[]byte(fmt.Sprintf(srcTemplate3, cmdLine(), buildTags(), pack, cExtern, imp, textgccgo)),
-		0644)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-}
-
-const srcTemplate1 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"unsafe"
-)
-
-
-%s
-
-%s
-`
-const srcTemplate2 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build !gccgo
-
-package %s
-
-import (
-	"unsafe"
-)
-%s
-%s
-%s
-type syscallFunc uintptr
-
-var (
-%s
-)
-
-// Implemented in runtime/syscall_aix.go.
-func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
-
-%s
-`
-const srcTemplate3 = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-// +build gccgo
-
-package %s
-
-%s
-*/
-import "C"
-import (
-	"syscall"
-)
-
-
-%s
-
-%s
-`

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

@@ -1,335 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
- This program reads a file containing function prototypes
- (like syscall_solaris.go) and generates system call bodies.
- The prototypes are marked by lines beginning with "//sys"
- and read like func declarations if //sys is replaced by func, but:
-	* The parameter lists must give a name for each argument.
-	  This includes return parameters.
-	* The parameter lists must give a type for each argument:
-	  the (x, y, z int) shorthand is not allowed.
-	* If the return parameter is an error number, it must be named err.
-	* If go func name needs to be different than its libc name,
-	* or the function is not in libc, name could be specified
-	* at the end, after "=" sign, like
-	  //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
-*/
-
-package main
-
-import (
-	"bufio"
-	"flag"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	b32  = flag.Bool("b32", false, "32bit big-endian")
-	l32  = flag.Bool("l32", false, "32bit little-endian")
-	tags = flag.String("tags", "", "build tags")
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksyscall_solaris.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return *tags
-}
-
-// Param is function parameter
-type Param struct {
-	Name string
-	Type string
-}
-
-// usage prints the program usage
-func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go run mksyscall_solaris.go [-b32 | -l32] [-tags x,y] [file ...]\n")
-	os.Exit(1)
-}
-
-// parseParamList parses parameter list and returns a slice of parameters
-func parseParamList(list string) []string {
-	list = strings.TrimSpace(list)
-	if list == "" {
-		return []string{}
-	}
-	return regexp.MustCompile(`\s*,\s*`).Split(list, -1)
-}
-
-// parseParam splits a parameter into name and type
-func parseParam(p string) Param {
-	ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p)
-	if ps == nil {
-		fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p)
-		os.Exit(1)
-	}
-	return Param{ps[1], ps[2]}
-}
-
-func main() {
-	flag.Usage = usage
-	flag.Parse()
-	if len(flag.Args()) <= 0 {
-		fmt.Fprintf(os.Stderr, "no files to parse provided\n")
-		usage()
-	}
-
-	endianness := ""
-	if *b32 {
-		endianness = "big-endian"
-	} else if *l32 {
-		endianness = "little-endian"
-	}
-
-	pack := ""
-	text := ""
-	dynimports := ""
-	linknames := ""
-	var vars []string
-	for _, path := range flag.Args() {
-		file, err := os.Open(path)
-		if err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		s := bufio.NewScanner(file)
-		for s.Scan() {
-			t := s.Text()
-			t = strings.TrimSpace(t)
-			t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `)
-			if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" {
-				pack = p[1]
-			}
-			nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t)
-			if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil {
-				continue
-			}
-
-			// Line must be of the form
-			//	func Open(path string, mode int, perm int) (fd int, err error)
-			// Split into name, in params, out params.
-			f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t)
-			if f == nil {
-				fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t)
-				os.Exit(1)
-			}
-			funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6]
-
-			// Split argument lists on comma.
-			in := parseParamList(inps)
-			out := parseParamList(outps)
-
-			inps = strings.Join(in, ", ")
-			outps = strings.Join(out, ", ")
-
-			// Try in vain to keep people from editing this file.
-			// The theory is that they jump into the middle of the file
-			// without reading the header.
-			text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n"
-
-			// So file name.
-			if modname == "" {
-				modname = "libc"
-			}
-
-			// System call name.
-			if sysname == "" {
-				sysname = funct
-			}
-
-			// System call pointer variable name.
-			sysvarname := fmt.Sprintf("proc%s", sysname)
-
-			strconvfunc := "BytePtrFromString"
-			strconvtype := "*byte"
-
-			sysname = strings.ToLower(sysname) // All libc functions are lowercase.
-
-			// Runtime import of function to allow cross-platform builds.
-			dynimports += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"%s.so\"\n", sysname, sysname, modname)
-			// Link symbol to proc address variable.
-			linknames += fmt.Sprintf("//go:linkname %s libc_%s\n", sysvarname, sysname)
-			// Library proc address variable.
-			vars = append(vars, sysvarname)
-
-			// Go function header.
-			outlist := strings.Join(out, ", ")
-			if outlist != "" {
-				outlist = fmt.Sprintf(" (%s)", outlist)
-			}
-			if text != "" {
-				text += "\n"
-			}
-			text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outlist)
-
-			// Check if err return available
-			errvar := ""
-			for _, param := range out {
-				p := parseParam(param)
-				if p.Type == "error" {
-					errvar = p.Name
-					continue
-				}
-			}
-
-			// Prepare arguments to Syscall.
-			var args []string
-			n := 0
-			for _, param := range in {
-				p := parseParam(param)
-				if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil {
-					args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))")
-				} else if p.Type == "string" && errvar != "" {
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name)
-					text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if p.Type == "string" {
-					fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n")
-					text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype)
-					text += fmt.Sprintf("\t_p%d, _ = %s(%s)\n", n, strconvfunc, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n))
-					n++
-				} else if s := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); s != nil {
-					// Convert slice into pointer, length.
-					// Have to be careful not to take address of &a[0] if len == 0:
-					// pass nil in that case.
-					text += fmt.Sprintf("\tvar _p%d *%s\n", n, s[1])
-					text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name)
-					args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("uintptr(len(%s))", p.Name))
-					n++
-				} else if p.Type == "int64" && endianness != "" {
-					if endianness == "big-endian" {
-						args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name))
-					} else {
-						args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name))
-					}
-				} else if p.Type == "bool" {
-					text += fmt.Sprintf("\tvar _p%d uint32\n", n)
-					text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n)
-					args = append(args, fmt.Sprintf("uintptr(_p%d)", n))
-					n++
-				} else {
-					args = append(args, fmt.Sprintf("uintptr(%s)", p.Name))
-				}
-			}
-			nargs := len(args)
-
-			// Determine which form to use; pad args with zeros.
-			asm := "sysvicall6"
-			if nonblock != nil {
-				asm = "rawSysvicall6"
-			}
-			if len(args) <= 6 {
-				for len(args) < 6 {
-					args = append(args, "0")
-				}
-			} else {
-				fmt.Fprintf(os.Stderr, "%s: too many arguments to system call\n", path)
-				os.Exit(1)
-			}
-
-			// Actual call.
-			arglist := strings.Join(args, ", ")
-			call := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, arglist)
-
-			// Assign return values.
-			body := ""
-			ret := []string{"_", "_", "_"}
-			doErrno := false
-			for i := 0; i < len(out); i++ {
-				p := parseParam(out[i])
-				reg := ""
-				if p.Name == "err" {
-					reg = "e1"
-					ret[2] = reg
-					doErrno = true
-				} else {
-					reg = fmt.Sprintf("r%d", i)
-					ret[i] = reg
-				}
-				if p.Type == "bool" {
-					reg = fmt.Sprintf("%d != 0", reg)
-				}
-				if p.Type == "int64" && endianness != "" {
-					// 64-bit number in r1:r0 or r0:r1.
-					if i+2 > len(out) {
-						fmt.Fprintf(os.Stderr, "%s: not enough registers for int64 return\n", path)
-						os.Exit(1)
-					}
-					if endianness == "big-endian" {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1)
-					} else {
-						reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i)
-					}
-					ret[i] = fmt.Sprintf("r%d", i)
-					ret[i+1] = fmt.Sprintf("r%d", i+1)
-				}
-				if reg != "e1" {
-					body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg)
-				}
-			}
-			if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" {
-				text += fmt.Sprintf("\t%s\n", call)
-			} else {
-				text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call)
-			}
-			text += body
-
-			if doErrno {
-				text += "\tif e1 != 0 {\n"
-				text += "\t\terr = e1\n"
-				text += "\t}\n"
-			}
-			text += "\treturn\n"
-			text += "}\n"
-		}
-		if err := s.Err(); err != nil {
-			fmt.Fprintf(os.Stderr, err.Error())
-			os.Exit(1)
-		}
-		file.Close()
-	}
-	imp := ""
-	if pack != "unix" {
-		imp = "import \"golang.org/x/sys/unix\"\n"
-
-	}
-	vardecls := "\t" + strings.Join(vars, ",\n\t")
-	vardecls += " syscallFunc"
-	fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, text)
-}
-
-const srcTemplate = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package %s
-
-import (
-	"syscall"
-	"unsafe"
-)
-%s
-%s
-%s
-var (
-%s	
-)
-
-%s
-`

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

@@ -1,190 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-// Generate system call table for DragonFly, NetBSD,
-// FreeBSD, OpenBSD or Darwin from master list
-// (for example, /usr/src/sys/kern/syscalls.master or
-// sys/syscall.h).
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"regexp"
-	"strings"
-)
-
-var (
-	goos, goarch string
-)
-
-// cmdLine returns this programs's commandline arguments
-func cmdLine() string {
-	return "go run mksysnum.go " + strings.Join(os.Args[1:], " ")
-}
-
-// buildTags returns build tags
-func buildTags() string {
-	return fmt.Sprintf("%s,%s", goarch, goos)
-}
-
-func checkErr(err error) {
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", err)
-		os.Exit(1)
-	}
-}
-
-// source string and substring slice for regexp
-type re struct {
-	str string   // source string
-	sub []string // matched sub-string
-}
-
-// Match performs regular expression match
-func (r *re) Match(exp string) bool {
-	r.sub = regexp.MustCompile(exp).FindStringSubmatch(r.str)
-	if r.sub != nil {
-		return true
-	}
-	return false
-}
-
-// fetchFile fetches a text file from URL
-func fetchFile(URL string) io.Reader {
-	resp, err := http.Get(URL)
-	checkErr(err)
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	checkErr(err)
-	return strings.NewReader(string(body))
-}
-
-// readFile reads a text file from path
-func readFile(path string) io.Reader {
-	file, err := os.Open(os.Args[1])
-	checkErr(err)
-	return file
-}
-
-func format(name, num, proto string) string {
-	name = strings.ToUpper(name)
-	// There are multiple entries for enosys and nosys, so comment them out.
-	nm := re{str: name}
-	if nm.Match(`^SYS_E?NOSYS$`) {
-		name = fmt.Sprintf("// %s", name)
-	}
-	if name == `SYS_SYS_EXIT` {
-		name = `SYS_EXIT`
-	}
-	return fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-}
-
-func main() {
-	// Get the OS (using GOOS_TARGET if it exist)
-	goos = os.Getenv("GOOS_TARGET")
-	if goos == "" {
-		goos = os.Getenv("GOOS")
-	}
-	// Get the architecture (using GOARCH_TARGET if it exists)
-	goarch = os.Getenv("GOARCH_TARGET")
-	if goarch == "" {
-		goarch = os.Getenv("GOARCH")
-	}
-	// Check if GOOS and GOARCH environment variables are defined
-	if goarch == "" || goos == "" {
-		fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n")
-		os.Exit(1)
-	}
-
-	file := strings.TrimSpace(os.Args[1])
-	var syscalls io.Reader
-	if strings.HasPrefix(file, "https://") || strings.HasPrefix(file, "http://") {
-		// Download syscalls.master file
-		syscalls = fetchFile(file)
-	} else {
-		syscalls = readFile(file)
-	}
-
-	var text, line string
-	s := bufio.NewScanner(syscalls)
-	for s.Scan() {
-		t := re{str: line}
-		if t.Match(`^(.*)\\$`) {
-			// Handle continuation
-			line = t.sub[1]
-			line += strings.TrimLeft(s.Text(), " \t")
-		} else {
-			// New line
-			line = s.Text()
-		}
-		t = re{str: line}
-		if t.Match(`\\$`) {
-			continue
-		}
-		t = re{str: line}
-
-		switch goos {
-		case "dragonfly":
-			if t.Match(`^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "freebsd":
-			if t.Match(`^([0-9]+)\s+\S+\s+(?:NO)?STD\s+({ \S+\s+(\w+).*)$`) {
-				num, proto := t.sub[1], t.sub[2]
-				name := fmt.Sprintf("SYS_%s", t.sub[3])
-				text += format(name, num, proto)
-			}
-		case "openbsd":
-			if t.Match(`^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$`) {
-				num, proto, name := t.sub[1], t.sub[3], t.sub[4]
-				text += format(name, num, proto)
-			}
-		case "netbsd":
-			if t.Match(`^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$`) {
-				num, proto, compat := t.sub[1], t.sub[6], t.sub[8]
-				name := t.sub[7] + "_" + t.sub[9]
-				if t.sub[11] != "" {
-					name = t.sub[7] + "_" + t.sub[11]
-				}
-				name = strings.ToUpper(name)
-				if compat == "" || compat == "13" || compat == "30" || compat == "50" {
-					text += fmt.Sprintf("	%s = %s;  // %s\n", name, num, proto)
-				}
-			}
-		case "darwin":
-			if t.Match(`^#define\s+SYS_(\w+)\s+([0-9]+)`) {
-				name, num := t.sub[1], t.sub[2]
-				name = strings.ToUpper(name)
-				text += fmt.Sprintf("	SYS_%s = %s;\n", name, num)
-			}
-		default:
-			fmt.Fprintf(os.Stderr, "unrecognized GOOS=%s\n", goos)
-			os.Exit(1)
-
-		}
-	}
-	err := s.Err()
-	checkErr(err)
-
-	fmt.Printf(template, cmdLine(), buildTags(), text)
-}
-
-const template = `// %s
-// Code generated by the command above; see README.md. DO NOT EDIT.
-
-// +build %s
-
-package unix
-
-const(
-%s)`

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

@@ -1,236 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-// +build aix
-
-/*
-Input to cgo -godefs.  See also mkerrors.sh and mkall.sh
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/limits.h>
-#include <sys/un.h>
-#include <utime.h>
-#include <sys/utsname.h>
-#include <sys/poll.h>
-#include <sys/resource.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-#include <sys/termio.h>
-#include <sys/ioctl.h>
-
-#include <termios.h>
-
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-
-
-#include <dirent.h>
-#include <fcntl.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;     // this one gets used for fields
-	struct sockaddr_in s2;  // these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-	PathMax        = C.PATH_MAX
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-type off64 C.off64_t
-type off C.off_t
-type Mode_t C.mode_t
-
-// Time
-
-type Timespec C.struct_timespec
-
-type StTimespec C.struct_st_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-type Timex C.struct_timex
-
-type Time_t C.time_t
-
-type Tms C.struct_tms
-
-type Utimbuf C.struct_utimbuf
-
-type Timezone C.struct_timezone
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit64
-
-type Pid_t C.pid_t
-
-type _Gid_t C.gid_t
-
-type dev_t C.dev_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type StatxTimestamp C.struct_statx_timestamp
-
-type Statx_t C.struct_statx
-
-type Dirent C.struct_dirent
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Cmsghdr C.struct_cmsghdr
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type Linger C.struct_linger
-
-type Msghdr C.struct_msghdr
-
-const (
-	SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny   = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix  = C.sizeof_struct_sockaddr_un
-	SizeofLinger        = C.sizeof_struct_linger
-	SizeofIPMreq        = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq      = C.sizeof_struct_ipv6_mreq
-	SizeofIPv6MTUInfo   = C.sizeof_struct_ip6_mtuinfo
-	SizeofMsghdr        = C.sizeof_struct_msghdr
-	SizeofCmsghdr       = C.sizeof_struct_cmsghdr
-	SizeofICMPv6Filter  = C.sizeof_struct_icmp6_filter
-)
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr = C.sizeof_struct_if_msghdr
-)
-
-type IfMsgHdr C.struct_if_msghdr
-
-// Misc
-
-type FdSet C.fd_set
-
-type Utsname C.struct_utsname
-
-type Ustat_t C.struct_ustat
-
-type Sigset_t C.sigset_t
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Termio C.struct_termio
-
-type Winsize C.struct_winsize
-
-//poll
-
-type PollFd struct {
-	Fd      int32
-	Events  uint16
-	Revents uint16
-}
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-//flock_t
-
-type Flock_t C.struct_flock64
-
-// Statfs
-
-type Fsid_t C.struct_fsid_t
-type Fsid64_t C.struct_fsid64_t
-
-type Statfs_t C.struct_statfs
-
-const RNDGETENTCNT = 0x80045200

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

@@ -1,283 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define __DARWIN_UNIX03 0
-#define KERNEL
-#define _DARWIN_USE_64_BIT_INODE
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <unistd.h>
-#include <mach/mach.h>
-#include <mach/message.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/if_var.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat64
-
-type Statfs_t C.struct_statfs64
-
-type Flock_t C.struct_flock
-
-type Fstore_t C.struct_fstore
-
-type Radvisory_t C.struct_radvisory
-
-type Fbootstraptransfer_t C.struct_fbootstraptransfer
-
-type Log2phys_t C.struct_log2phys
-
-type Fsid C.struct_fsid
-
-type Dirent C.struct_dirent
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet4Pktinfo C.struct_in_pktinfo
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet4Pktinfo     = C.sizeof_struct_in_pktinfo
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr    = C.sizeof_struct_if_msghdr
-	SizeofIfData      = C.sizeof_struct_if_data
-	SizeofIfaMsghdr   = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr  = C.sizeof_struct_ifma_msghdr
-	SizeofIfmaMsghdr2 = C.sizeof_struct_ifma_msghdr2
-	SizeofRtMsghdr    = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics   = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfmaMsghdr2 C.struct_ifma_msghdr2
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// uname
-
-type Utsname C.struct_utsname
-
-// Clockinfo
-
-const SizeofClockinfo = C.sizeof_struct_clockinfo
-
-type Clockinfo C.struct_clockinfo

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

@@ -1,263 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.struct_fsid
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr       = C.sizeof_struct_ifma_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Uname
-
-type Utsname C.struct_utsname

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

@@ -1,356 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define	_WANT_FREEBSD11_STAT	1
-#define	_WANT_FREEBSD11_STATFS	1
-#define	_WANT_FREEBSD11_DIRENT	1
-#define	_WANT_FREEBSD11_KEVENT  1
-
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/capsicum.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-// This structure is a duplicate of if_data on FreeBSD 8-STABLE.
-// See /usr/include/net/if.h.
-struct if_data8 {
-	u_char  ifi_type;
-	u_char  ifi_physical;
-	u_char  ifi_addrlen;
-	u_char  ifi_hdrlen;
-	u_char  ifi_link_state;
-	u_char  ifi_spare_char1;
-	u_char  ifi_spare_char2;
-	u_char  ifi_datalen;
-	u_long  ifi_mtu;
-	u_long  ifi_metric;
-	u_long  ifi_baudrate;
-	u_long  ifi_ipackets;
-	u_long  ifi_ierrors;
-	u_long  ifi_opackets;
-	u_long  ifi_oerrors;
-	u_long  ifi_collisions;
-	u_long  ifi_ibytes;
-	u_long  ifi_obytes;
-	u_long  ifi_imcasts;
-	u_long  ifi_omcasts;
-	u_long  ifi_iqdrops;
-	u_long  ifi_noproto;
-	u_long  ifi_hwassist;
-// FIXME: these are now unions, so maybe need to change definitions?
-#undef ifi_epoch
-	time_t  ifi_epoch;
-#undef ifi_lastchange
-	struct  timeval ifi_lastchange;
-};
-
-// This structure is a duplicate of if_msghdr on FreeBSD 8-STABLE.
-// See /usr/include/net/if.h.
-struct if_msghdr8 {
-	u_short ifm_msglen;
-	u_char  ifm_version;
-	u_char  ifm_type;
-	int     ifm_addrs;
-	int     ifm_flags;
-	u_short ifm_index;
-	struct  if_data8 ifm_data;
-};
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-const (
-	_statfsVersion = C.STATFS_VERSION
-	_dirblksiz     = C.DIRBLKSIZ
-)
-
-type Stat_t C.struct_stat
-
-type stat_freebsd11_t C.struct_freebsd11_stat
-
-type Statfs_t C.struct_statfs
-
-type statfs_freebsd11_t C.struct_freebsd11_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type dirent_freebsd11 C.struct_freebsd11_dirent
-
-type Fsid C.struct_fsid
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Advice to Fadvise
-
-const (
-	FADV_NORMAL     = C.POSIX_FADV_NORMAL
-	FADV_RANDOM     = C.POSIX_FADV_RANDOM
-	FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
-	FADV_WILLNEED   = C.POSIX_FADV_WILLNEED
-	FADV_DONTNEED   = C.POSIX_FADV_DONTNEED
-	FADV_NOREUSE    = C.POSIX_FADV_NOREUSE
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPMreqn C.struct_ip_mreqn
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPMreqn          = C.sizeof_struct_ip_mreqn
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent_freebsd11
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	sizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr8
-	sizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfData           = C.sizeof_struct_if_data8
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfmaMsghdr       = C.sizeof_struct_ifma_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type ifMsghdr C.struct_if_msghdr
-
-type IfMsghdr C.struct_if_msghdr8
-
-type ifData C.struct_if_data
-
-type IfData C.struct_if_data8
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfmaMsghdr C.struct_ifma_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion    = C.sizeof_struct_bpf_version
-	SizeofBpfStat       = C.sizeof_struct_bpf_stat
-	SizeofBpfZbuf       = C.sizeof_struct_bpf_zbuf
-	SizeofBpfProgram    = C.sizeof_struct_bpf_program
-	SizeofBpfInsn       = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr        = C.sizeof_struct_bpf_hdr
-	SizeofBpfZbufHeader = C.sizeof_struct_bpf_zbuf_header
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfZbuf C.struct_bpf_zbuf
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfZbufHeader C.struct_bpf_zbuf_header
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR      = C.POLLERR
-	POLLHUP      = C.POLLHUP
-	POLLIN       = C.POLLIN
-	POLLINIGNEOF = C.POLLINIGNEOF
-	POLLNVAL     = C.POLLNVAL
-	POLLOUT      = C.POLLOUT
-	POLLPRI      = C.POLLPRI
-	POLLRDBAND   = C.POLLRDBAND
-	POLLRDNORM   = C.POLLRDNORM
-	POLLWRBAND   = C.POLLWRBAND
-	POLLWRNORM   = C.POLLWRNORM
-)
-
-// Capabilities
-
-type CapRights C.struct_cap_rights
-
-// Uname
-
-type Utsname C.struct_utsname

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

@@ -1,289 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/sysctl.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.fsid_t
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Advice to Fadvise
-
-const (
-	FADV_NORMAL     = C.POSIX_FADV_NORMAL
-	FADV_RANDOM     = C.POSIX_FADV_RANDOM
-	FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL
-	FADV_WILLNEED   = C.POSIX_FADV_WILLNEED
-	FADV_DONTNEED   = C.POSIX_FADV_DONTNEED
-	FADV_NOREUSE    = C.POSIX_FADV_NOREUSE
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-type Mclpool C.struct_mclpool
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfTimeval C.struct_bpf_timeval
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-type Ptmget C.struct_ptmget
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Sysctl
-
-type Sysctlnode C.struct_sysctlnode
-
-// Uname
-
-type Utsname C.struct_utsname
-
-// Clockinfo
-
-const SizeofClockinfo = C.sizeof_struct_clockinfo
-
-type Clockinfo C.struct_clockinfo

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

@@ -1,282 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-#include <dirent.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/ptrace.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <sys/utsname.h>
-#include <sys/wait.h>
-#include <uvm/uvmexp.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Statfs_t C.struct_statfs
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-type Fsid C.fsid_t
-
-// File system limits
-
-const (
-	PathMax = C.PATH_MAX
-)
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Ptrace requests
-
-const (
-	PTRACE_TRACEME = C.PT_TRACE_ME
-	PTRACE_CONT    = C.PT_CONTINUE
-	PTRACE_KILL    = C.PT_KILL
-)
-
-// Events (kqueue, kevent)
-
-type Kevent_t C.struct_kevent
-
-// Select
-
-type FdSet C.fd_set
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr         = C.sizeof_struct_if_msghdr
-	SizeofIfData           = C.sizeof_struct_if_data
-	SizeofIfaMsghdr        = C.sizeof_struct_ifa_msghdr
-	SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr
-	SizeofRtMsghdr         = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics        = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type IfAnnounceMsghdr C.struct_if_announcemsghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-type Mclpool C.struct_mclpool
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfHdr C.struct_bpf_hdr
-
-type BpfTimeval C.struct_bpf_timeval
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Winsize C.struct_winsize
-
-// fchmodat-like syscalls.
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-)
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)
-
-// Signal Sets
-
-type Sigset_t C.sigset_t
-
-// Uname
-
-type Utsname C.struct_utsname
-
-// Uvmexp
-
-const SizeofUvmexp = C.sizeof_struct_uvmexp
-
-type Uvmexp C.struct_uvmexp
-
-// Clockinfo
-
-const SizeofClockinfo = C.sizeof_struct_clockinfo
-
-type Clockinfo C.struct_clockinfo

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

@@ -1,266 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build ignore
-
-/*
-Input to cgo -godefs.  See README.md
-*/
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package unix
-
-/*
-#define KERNEL
-// These defines ensure that builds done on newer versions of Solaris are
-// backwards-compatible with older versions of Solaris and
-// OpenSolaris-based derivatives.
-#define __USE_SUNOS_SOCKETS__          // msghdr
-#define __USE_LEGACY_PROTOTYPES__      // iovec
-#include <dirent.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <limits.h>
-#include <poll.h>
-#include <signal.h>
-#include <termios.h>
-#include <termio.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/param.h>
-#include <sys/resource.h>
-#include <sys/select.h>
-#include <sys/signal.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/statvfs.h>
-#include <sys/time.h>
-#include <sys/times.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
-#include <sys/un.h>
-#include <sys/wait.h>
-#include <net/bpf.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-#include <netinet/tcp.h>
-#include <ustat.h>
-#include <utime.h>
-
-enum {
-	sizeofPtr = sizeof(void*),
-};
-
-union sockaddr_all {
-	struct sockaddr s1;	// this one gets used for fields
-	struct sockaddr_in s2;	// these pad it out
-	struct sockaddr_in6 s3;
-	struct sockaddr_un s4;
-	struct sockaddr_dl s5;
-};
-
-struct sockaddr_any {
-	struct sockaddr addr;
-	char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)];
-};
-
-*/
-import "C"
-
-// Machine characteristics
-
-const (
-	SizeofPtr      = C.sizeofPtr
-	SizeofShort    = C.sizeof_short
-	SizeofInt      = C.sizeof_int
-	SizeofLong     = C.sizeof_long
-	SizeofLongLong = C.sizeof_longlong
-	PathMax        = C.PATH_MAX
-	MaxHostNameLen = C.MAXHOSTNAMELEN
-)
-
-// Basic types
-
-type (
-	_C_short     C.short
-	_C_int       C.int
-	_C_long      C.long
-	_C_long_long C.longlong
-)
-
-// Time
-
-type Timespec C.struct_timespec
-
-type Timeval C.struct_timeval
-
-type Timeval32 C.struct_timeval32
-
-type Tms C.struct_tms
-
-type Utimbuf C.struct_utimbuf
-
-// Processes
-
-type Rusage C.struct_rusage
-
-type Rlimit C.struct_rlimit
-
-type _Gid_t C.gid_t
-
-// Files
-
-type Stat_t C.struct_stat
-
-type Flock_t C.struct_flock
-
-type Dirent C.struct_dirent
-
-// Filesystems
-
-type _Fsblkcnt_t C.fsblkcnt_t
-
-type Statvfs_t C.struct_statvfs
-
-// Sockets
-
-type RawSockaddrInet4 C.struct_sockaddr_in
-
-type RawSockaddrInet6 C.struct_sockaddr_in6
-
-type RawSockaddrUnix C.struct_sockaddr_un
-
-type RawSockaddrDatalink C.struct_sockaddr_dl
-
-type RawSockaddr C.struct_sockaddr
-
-type RawSockaddrAny C.struct_sockaddr_any
-
-type _Socklen C.socklen_t
-
-type Linger C.struct_linger
-
-type Iovec C.struct_iovec
-
-type IPMreq C.struct_ip_mreq
-
-type IPv6Mreq C.struct_ipv6_mreq
-
-type Msghdr C.struct_msghdr
-
-type Cmsghdr C.struct_cmsghdr
-
-type Inet6Pktinfo C.struct_in6_pktinfo
-
-type IPv6MTUInfo C.struct_ip6_mtuinfo
-
-type ICMPv6Filter C.struct_icmp6_filter
-
-const (
-	SizeofSockaddrInet4    = C.sizeof_struct_sockaddr_in
-	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
-	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
-	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
-	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
-	SizeofLinger           = C.sizeof_struct_linger
-	SizeofIPMreq           = C.sizeof_struct_ip_mreq
-	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq
-	SizeofMsghdr           = C.sizeof_struct_msghdr
-	SizeofCmsghdr          = C.sizeof_struct_cmsghdr
-	SizeofInet6Pktinfo     = C.sizeof_struct_in6_pktinfo
-	SizeofIPv6MTUInfo      = C.sizeof_struct_ip6_mtuinfo
-	SizeofICMPv6Filter     = C.sizeof_struct_icmp6_filter
-)
-
-// Select
-
-type FdSet C.fd_set
-
-// Misc
-
-type Utsname C.struct_utsname
-
-type Ustat_t C.struct_ustat
-
-const (
-	AT_FDCWD            = C.AT_FDCWD
-	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
-	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
-	AT_REMOVEDIR        = C.AT_REMOVEDIR
-	AT_EACCESS          = C.AT_EACCESS
-)
-
-// Routing and interface messages
-
-const (
-	SizeofIfMsghdr  = C.sizeof_struct_if_msghdr
-	SizeofIfData    = C.sizeof_struct_if_data
-	SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr
-	SizeofRtMsghdr  = C.sizeof_struct_rt_msghdr
-	SizeofRtMetrics = C.sizeof_struct_rt_metrics
-)
-
-type IfMsghdr C.struct_if_msghdr
-
-type IfData C.struct_if_data
-
-type IfaMsghdr C.struct_ifa_msghdr
-
-type RtMsghdr C.struct_rt_msghdr
-
-type RtMetrics C.struct_rt_metrics
-
-// Berkeley packet filter
-
-const (
-	SizeofBpfVersion = C.sizeof_struct_bpf_version
-	SizeofBpfStat    = C.sizeof_struct_bpf_stat
-	SizeofBpfProgram = C.sizeof_struct_bpf_program
-	SizeofBpfInsn    = C.sizeof_struct_bpf_insn
-	SizeofBpfHdr     = C.sizeof_struct_bpf_hdr
-)
-
-type BpfVersion C.struct_bpf_version
-
-type BpfStat C.struct_bpf_stat
-
-type BpfProgram C.struct_bpf_program
-
-type BpfInsn C.struct_bpf_insn
-
-type BpfTimeval C.struct_bpf_timeval
-
-type BpfHdr C.struct_bpf_hdr
-
-// Terminal handling
-
-type Termios C.struct_termios
-
-type Termio C.struct_termio
-
-type Winsize C.struct_winsize
-
-// poll
-
-type PollFd C.struct_pollfd
-
-const (
-	POLLERR    = C.POLLERR
-	POLLHUP    = C.POLLHUP
-	POLLIN     = C.POLLIN
-	POLLNVAL   = C.POLLNVAL
-	POLLOUT    = C.POLLOUT
-	POLLPRI    = C.POLLPRI
-	POLLRDBAND = C.POLLRDBAND
-	POLLRDNORM = C.POLLRDNORM
-	POLLWRBAND = C.POLLWRBAND
-	POLLWRNORM = C.POLLWRNORM
-)

vendor/modules.txt

@@ -1,3 +1,5 @@
+# git.giftfish.de/ston1th/authdav v1.1.0
+git.giftfish.de/ston1th/authdav
 # git.giftfish.de/ston1th/godrop/v2 v2.1.0
 git.giftfish.de/ston1th/godrop/v2
 # git.giftfish.de/ston1th/jwt/v3 v3.2.0
@@ -8,43 +10,43 @@ github.com/RoaringBitmap/roaring
 github.com/bcampbell/qs
 # github.com/blevesearch/bleve v0.8.0
 github.com/blevesearch/bleve
+github.com/blevesearch/bleve/analysis
 github.com/blevesearch/bleve/analysis/analyzer/custom
+github.com/blevesearch/bleve/analysis/analyzer/standard
+github.com/blevesearch/bleve/analysis/datetime/flexible
+github.com/blevesearch/bleve/analysis/datetime/optional
+github.com/blevesearch/bleve/analysis/lang/en
 github.com/blevesearch/bleve/analysis/token/edgengram
 github.com/blevesearch/bleve/analysis/token/lowercase
+github.com/blevesearch/bleve/analysis/token/porter
+github.com/blevesearch/bleve/analysis/token/stop
 github.com/blevesearch/bleve/analysis/tokenizer/unicode
 github.com/blevesearch/bleve/document
-github.com/blevesearch/bleve/mapping
+github.com/blevesearch/bleve/geo
-github.com/blevesearch/bleve/search/query
-github.com/blevesearch/bleve/analysis
-github.com/blevesearch/bleve/analysis/datetime/optional
 github.com/blevesearch/bleve/index
 github.com/blevesearch/bleve/index/scorch
+github.com/blevesearch/bleve/index/scorch/mergeplan
+github.com/blevesearch/bleve/index/scorch/segment
+github.com/blevesearch/bleve/index/scorch/segment/zap
 github.com/blevesearch/bleve/index/store
 github.com/blevesearch/bleve/index/store/boltdb
 github.com/blevesearch/bleve/index/store/gtreap
 github.com/blevesearch/bleve/index/upsidedown
+github.com/blevesearch/bleve/mapping
+github.com/blevesearch/bleve/numeric
 github.com/blevesearch/bleve/registry
 github.com/blevesearch/bleve/search
 github.com/blevesearch/bleve/search/collector
 github.com/blevesearch/bleve/search/facet
 github.com/blevesearch/bleve/search/highlight
-github.com/blevesearch/bleve/search/highlight/highlighter/html
-github.com/blevesearch/bleve/size
-github.com/blevesearch/bleve/geo
-github.com/blevesearch/bleve/numeric
-github.com/blevesearch/bleve/analysis/analyzer/standard
-github.com/blevesearch/bleve/search/searcher
-github.com/blevesearch/bleve/analysis/datetime/flexible
-github.com/blevesearch/bleve/index/scorch/mergeplan
-github.com/blevesearch/bleve/index/scorch/segment
-github.com/blevesearch/bleve/index/scorch/segment/zap
 github.com/blevesearch/bleve/search/highlight/format/html
 github.com/blevesearch/bleve/search/highlight/fragmenter/simple
+github.com/blevesearch/bleve/search/highlight/highlighter/html
 github.com/blevesearch/bleve/search/highlight/highlighter/simple
-github.com/blevesearch/bleve/analysis/lang/en
+github.com/blevesearch/bleve/search/query
 github.com/blevesearch/bleve/search/scorer
-github.com/blevesearch/bleve/analysis/token/porter
+github.com/blevesearch/bleve/search/searcher
-github.com/blevesearch/bleve/analysis/token/stop
+github.com/blevesearch/bleve/size
 # github.com/blevesearch/go-porterstemmer v1.0.2
 github.com/blevesearch/go-porterstemmer
 # github.com/blevesearch/segment v0.0.0-20160915185041-762005e7a34f
@@ -78,8 +80,8 @@ github.com/mschoch/smat
 github.com/philhofer/fwd
 # github.com/pquerna/otp v1.2.0
 github.com/pquerna/otp
-github.com/pquerna/otp/totp
 github.com/pquerna/otp/hotp
+github.com/pquerna/otp/totp
 # github.com/steveyen/gtreap v0.0.0-20150807155958-0abe01ef9be2
 github.com/steveyen/gtreap
 # github.com/tinylib/msgp v1.1.0
@@ -91,6 +93,9 @@ github.com/willf/bitset
 # golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734
 golang.org/x/crypto/bcrypt
 golang.org/x/crypto/blowfish
+# golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297
+golang.org/x/net/webdav
+golang.org/x/net/webdav/internal/xml
 # golang.org/x/sys v0.0.0-20190412213103-97732733099d
 golang.org/x/sys/unix
 golang.org/x/sys/windows