changes to allow for darwin compilation

Signed-off-by: baude <bbaude@redhat.com>

Closes: #1015
Approved by: baude

20 files changed, 2014 insertions, 0 deletions

diff --git a/vendor/golang.org/x/sys/windows/registry/key.go b/vendor/golang.org/x/sys/windows/registry/key.go
new file mode 100644
index 000000000..c25648343
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/registry/key.go
@@ -0,0 +1,198 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// Package registry provides access to the Windows registry.
+//
+// Here is a simple example, opening a registry key and reading a string value from it.
+//
+//	k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
+//	if err != nil {
+//		log.Fatal(err)
+//	}
+//	defer k.Close()
+//
+//	s, _, err := k.GetStringValue("SystemRoot")
+//	if err != nil {
+//		log.Fatal(err)
+//	}
+//	fmt.Printf("Windows system root is %q\n", s)
+//
+package registry
+
+import (
+	"io"
+	"syscall"
+	"time"
+)
+
+const (
+	// Registry key security and access rights.
+	// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms724878.aspx
+	// for details.
+	ALL_ACCESS         = 0xf003f
+	CREATE_LINK        = 0x00020
+	CREATE_SUB_KEY     = 0x00004
+	ENUMERATE_SUB_KEYS = 0x00008
+	EXECUTE            = 0x20019
+	NOTIFY             = 0x00010
+	QUERY_VALUE        = 0x00001
+	READ               = 0x20019
+	SET_VALUE          = 0x00002
+	WOW64_32KEY        = 0x00200
+	WOW64_64KEY        = 0x00100
+	WRITE              = 0x20006
+)
+
+// Key is a handle to an open Windows registry key.
+// Keys can be obtained by calling OpenKey; there are
+// also some predefined root keys such as CURRENT_USER.
+// Keys can be used directly in the Windows API.
+type Key syscall.Handle
+
+const (
+	// Windows defines some predefined root keys that are always open.
+	// An application can use these keys as entry points to the registry.
+	// Normally these keys are used in OpenKey to open new keys,
+	// but they can also be used anywhere a Key is required.
+	CLASSES_ROOT     = Key(syscall.HKEY_CLASSES_ROOT)
+	CURRENT_USER     = Key(syscall.HKEY_CURRENT_USER)
+	LOCAL_MACHINE    = Key(syscall.HKEY_LOCAL_MACHINE)
+	USERS            = Key(syscall.HKEY_USERS)
+	CURRENT_CONFIG   = Key(syscall.HKEY_CURRENT_CONFIG)
+	PERFORMANCE_DATA = Key(syscall.HKEY_PERFORMANCE_DATA)
+)
+
+// Close closes open key k.
+func (k Key) Close() error {
+	return syscall.RegCloseKey(syscall.Handle(k))
+}
+
+// OpenKey opens a new key with path name relative to key k.
+// It accepts any open key, including CURRENT_USER and others,
+// and returns the new key and an error.
+// The access parameter specifies desired access rights to the
+// key to be opened.
+func OpenKey(k Key, path string, access uint32) (Key, error) {
+	p, err := syscall.UTF16PtrFromString(path)
+	if err != nil {
+		return 0, err
+	}
+	var subkey syscall.Handle
+	err = syscall.RegOpenKeyEx(syscall.Handle(k), p, 0, access, &subkey)
+	if err != nil {
+		return 0, err
+	}
+	return Key(subkey), nil
+}
+
+// OpenRemoteKey opens a predefined registry key on another
+// computer pcname. The key to be opened is specified by k, but
+// can only be one of LOCAL_MACHINE, PERFORMANCE_DATA or USERS.
+// If pcname is "", OpenRemoteKey returns local computer key.
+func OpenRemoteKey(pcname string, k Key) (Key, error) {
+	var err error
+	var p *uint16
+	if pcname != "" {
+		p, err = syscall.UTF16PtrFromString(`\\` + pcname)
+		if err != nil {
+			return 0, err
+		}
+	}
+	var remoteKey syscall.Handle
+	err = regConnectRegistry(p, syscall.Handle(k), &remoteKey)
+	if err != nil {
+		return 0, err
+	}
+	return Key(remoteKey), nil
+}
+
+// ReadSubKeyNames returns the names of subkeys of key k.
+// The parameter n controls the number of returned names,
+// analogous to the way os.File.Readdirnames works.
+func (k Key) ReadSubKeyNames(n int) ([]string, error) {
+	names := make([]string, 0)
+	// Registry key size limit is 255 bytes and described there:
+	// https://msdn.microsoft.com/library/windows/desktop/ms724872.aspx
+	buf := make([]uint16, 256) //plus extra room for terminating zero byte
+loopItems:
+	for i := uint32(0); ; i++ {
+		if n > 0 {
+			if len(names) == n {
+				return names, nil
+			}
+		}
+		l := uint32(len(buf))
+		for {
+			err := syscall.RegEnumKeyEx(syscall.Handle(k), i, &buf[0], &l, nil, nil, nil, nil)
+			if err == nil {
+				break
+			}
+			if err == syscall.ERROR_MORE_DATA {
+				// Double buffer size and try again.
+				l = uint32(2 * len(buf))
+				buf = make([]uint16, l)
+				continue
+			}
+			if err == _ERROR_NO_MORE_ITEMS {
+				break loopItems
+			}
+			return names, err
+		}
+		names = append(names, syscall.UTF16ToString(buf[:l]))
+	}
+	if n > len(names) {
+		return names, io.EOF
+	}
+	return names, nil
+}
+
+// CreateKey creates a key named path under open key k.
+// CreateKey returns the new key and a boolean flag that reports
+// whether the key already existed.
+// The access parameter specifies the access rights for the key
+// to be created.
+func CreateKey(k Key, path string, access uint32) (newk Key, openedExisting bool, err error) {
+	var h syscall.Handle
+	var d uint32
+	err = regCreateKeyEx(syscall.Handle(k), syscall.StringToUTF16Ptr(path),
+		0, nil, _REG_OPTION_NON_VOLATILE, access, nil, &h, &d)
+	if err != nil {
+		return 0, false, err
+	}
+	return Key(h), d == _REG_OPENED_EXISTING_KEY, nil
+}
+
+// DeleteKey deletes the subkey path of key k and its values.
+func DeleteKey(k Key, path string) error {
+	return regDeleteKey(syscall.Handle(k), syscall.StringToUTF16Ptr(path))
+}
+
+// A KeyInfo describes the statistics of a key. It is returned by Stat.
+type KeyInfo struct {
+	SubKeyCount     uint32
+	MaxSubKeyLen    uint32 // size of the key's subkey with the longest name, in Unicode characters, not including the terminating zero byte
+	ValueCount      uint32
+	MaxValueNameLen uint32 // size of the key's longest value name, in Unicode characters, not including the terminating zero byte
+	MaxValueLen     uint32 // longest data component among the key's values, in bytes
+	lastWriteTime   syscall.Filetime
+}
+
+// ModTime returns the key's last write time.
+func (ki *KeyInfo) ModTime() time.Time {
+	return time.Unix(0, ki.lastWriteTime.Nanoseconds())
+}
+
+// Stat retrieves information about the open key k.
+func (k Key) Stat() (*KeyInfo, error) {
+	var ki KeyInfo
+	err := syscall.RegQueryInfoKey(syscall.Handle(k), nil, nil, nil,
+		&ki.SubKeyCount, &ki.MaxSubKeyLen, nil, &ki.ValueCount,
+		&ki.MaxValueNameLen, &ki.MaxValueLen, nil, &ki.lastWriteTime)
+	if err != nil {
+		return nil, err
+	}
+	return &ki, nil
+}
diff --git a/vendor/golang.org/x/sys/windows/registry/mksyscall.go b/vendor/golang.org/x/sys/windows/registry/mksyscall.go
new file mode 100644
index 000000000..0ac95ffe7
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/registry/mksyscall.go
@@ -0,0 +1,7 @@
+// 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 registry
+
+//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go syscall.go
diff --git a/vendor/golang.org/x/sys/windows/registry/syscall.go b/vendor/golang.org/x/sys/windows/registry/syscall.go
new file mode 100644
index 000000000..e66643cba
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/registry/syscall.go
@@ -0,0 +1,32 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package registry
+
+import "syscall"
+
+const (
+	_REG_OPTION_NON_VOLATILE = 0
+
+	_REG_CREATED_NEW_KEY     = 1
+	_REG_OPENED_EXISTING_KEY = 2
+
+	_ERROR_NO_MORE_ITEMS syscall.Errno = 259
+)
+
+func LoadRegLoadMUIString() error {
+	return procRegLoadMUIStringW.Find()
+}
+
+//sys	regCreateKeyEx(key syscall.Handle, subkey *uint16, reserved uint32, class *uint16, options uint32, desired uint32, sa *syscall.SecurityAttributes, result *syscall.Handle, disposition *uint32) (regerrno error) = advapi32.RegCreateKeyExW
+//sys	regDeleteKey(key syscall.Handle, subkey *uint16) (regerrno error) = advapi32.RegDeleteKeyW
+//sys	regSetValueEx(key syscall.Handle, valueName *uint16, reserved uint32, vtype uint32, buf *byte, bufsize uint32) (regerrno error) = advapi32.RegSetValueExW
+//sys	regEnumValue(key syscall.Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegEnumValueW
+//sys	regDeleteValue(key syscall.Handle, name *uint16) (regerrno error) = advapi32.RegDeleteValueW
+//sys   regLoadMUIString(key syscall.Handle, name *uint16, buf *uint16, buflen uint32, buflenCopied *uint32, flags uint32, dir *uint16) (regerrno error) = advapi32.RegLoadMUIStringW
+//sys	regConnectRegistry(machinename *uint16, key syscall.Handle, result *syscall.Handle) (regerrno error) = advapi32.RegConnectRegistryW
+
+//sys	expandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) = kernel32.ExpandEnvironmentStringsW
diff --git a/vendor/golang.org/x/sys/windows/registry/value.go b/vendor/golang.org/x/sys/windows/registry/value.go
new file mode 100644
index 000000000..71d4e15ba
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/registry/value.go
@@ -0,0 +1,384 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package registry
+
+import (
+	"errors"
+	"io"
+	"syscall"
+	"unicode/utf16"
+	"unsafe"
+)
+
+const (
+	// Registry value types.
+	NONE                       = 0
+	SZ                         = 1
+	EXPAND_SZ                  = 2
+	BINARY                     = 3
+	DWORD                      = 4
+	DWORD_BIG_ENDIAN           = 5
+	LINK                       = 6
+	MULTI_SZ                   = 7
+	RESOURCE_LIST              = 8
+	FULL_RESOURCE_DESCRIPTOR   = 9
+	RESOURCE_REQUIREMENTS_LIST = 10
+	QWORD                      = 11
+)
+
+var (
+	// ErrShortBuffer is returned when the buffer was too short for the operation.
+	ErrShortBuffer = syscall.ERROR_MORE_DATA
+
+	// ErrNotExist is returned when a registry key or value does not exist.
+	ErrNotExist = syscall.ERROR_FILE_NOT_FOUND
+
+	// ErrUnexpectedType is returned by Get*Value when the value's type was unexpected.
+	ErrUnexpectedType = errors.New("unexpected key value type")
+)
+
+// GetValue retrieves the type and data for the specified value associated
+// with an open key k. It fills up buffer buf and returns the retrieved
+// byte count n. If buf is too small to fit the stored value it returns
+// ErrShortBuffer error along with the required buffer size n.
+// If no buffer is provided, it returns true and actual buffer size n.
+// If no buffer is provided, GetValue returns the value's type only.
+// If the value does not exist, the error returned is ErrNotExist.
+//
+// GetValue is a low level function. If value's type is known, use the appropriate
+// Get*Value function instead.
+func (k Key) GetValue(name string, buf []byte) (n int, valtype uint32, err error) {
+	pname, err := syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return 0, 0, err
+	}
+	var pbuf *byte
+	if len(buf) > 0 {
+		pbuf = (*byte)(unsafe.Pointer(&buf[0]))
+	}
+	l := uint32(len(buf))
+	err = syscall.RegQueryValueEx(syscall.Handle(k), pname, nil, &valtype, pbuf, &l)
+	if err != nil {
+		return int(l), valtype, err
+	}
+	return int(l), valtype, nil
+}
+
+func (k Key) getValue(name string, buf []byte) (date []byte, valtype uint32, err error) {
+	p, err := syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return nil, 0, err
+	}
+	var t uint32
+	n := uint32(len(buf))
+	for {
+		err = syscall.RegQueryValueEx(syscall.Handle(k), p, nil, &t, (*byte)(unsafe.Pointer(&buf[0])), &n)
+		if err == nil {
+			return buf[:n], t, nil
+		}
+		if err != syscall.ERROR_MORE_DATA {
+			return nil, 0, err
+		}
+		if n <= uint32(len(buf)) {
+			return nil, 0, err
+		}
+		buf = make([]byte, n)
+	}
+}
+
+// GetStringValue retrieves the string value for the specified
+// value name associated with an open key k. It also returns the value's type.
+// If value does not exist, GetStringValue returns ErrNotExist.
+// If value is not SZ or EXPAND_SZ, it will return the correct value
+// type and ErrUnexpectedType.
+func (k Key) GetStringValue(name string) (val string, valtype uint32, err error) {
+	data, typ, err2 := k.getValue(name, make([]byte, 64))
+	if err2 != nil {
+		return "", typ, err2
+	}
+	switch typ {
+	case SZ, EXPAND_SZ:
+	default:
+		return "", typ, ErrUnexpectedType
+	}
+	if len(data) == 0 {
+		return "", typ, nil
+	}
+	u := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[:]
+	return syscall.UTF16ToString(u), typ, nil
+}
+
+// GetMUIStringValue retrieves the localized string value for
+// the specified value name associated with an open key k.
+// If the value name doesn't exist or the localized string value
+// can't be resolved, GetMUIStringValue returns ErrNotExist.
+// GetMUIStringValue panics if the system doesn't support
+// regLoadMUIString; use LoadRegLoadMUIString to check if
+// regLoadMUIString is supported before calling this function.
+func (k Key) GetMUIStringValue(name string) (string, error) {
+	pname, err := syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return "", err
+	}
+
+	buf := make([]uint16, 1024)
+	var buflen uint32
+	var pdir *uint16
+
+	err = regLoadMUIString(syscall.Handle(k), pname, &buf[0], uint32(len(buf)), &buflen, 0, pdir)
+	if err == syscall.ERROR_FILE_NOT_FOUND { // Try fallback path
+
+		// Try to resolve the string value using the system directory as
+		// a DLL search path; this assumes the string value is of the form
+		// @[path]\dllname,-strID but with no path given, e.g. @tzres.dll,-320.
+
+		// This approach works with tzres.dll but may have to be revised
+		// in the future to allow callers to provide custom search paths.
+
+		var s string
+		s, err = ExpandString("%SystemRoot%\\system32\\")
+		if err != nil {
+			return "", err
+		}
+		pdir, err = syscall.UTF16PtrFromString(s)
+		if err != nil {
+			return "", err
+		}
+
+		err = regLoadMUIString(syscall.Handle(k), pname, &buf[0], uint32(len(buf)), &buflen, 0, pdir)
+	}
+
+	for err == syscall.ERROR_MORE_DATA { // Grow buffer if needed
+		if buflen <= uint32(len(buf)) {
+			break // Buffer not growing, assume race; break
+		}
+		buf = make([]uint16, buflen)
+		err = regLoadMUIString(syscall.Handle(k), pname, &buf[0], uint32(len(buf)), &buflen, 0, pdir)
+	}
+
+	if err != nil {
+		return "", err
+	}
+
+	return syscall.UTF16ToString(buf), nil
+}
+
+// ExpandString expands environment-variable strings and replaces
+// them with the values defined for the current user.
+// Use ExpandString to expand EXPAND_SZ strings.
+func ExpandString(value string) (string, error) {
+	if value == "" {
+		return "", nil
+	}
+	p, err := syscall.UTF16PtrFromString(value)
+	if err != nil {
+		return "", err
+	}
+	r := make([]uint16, 100)
+	for {
+		n, err := expandEnvironmentStrings(p, &r[0], uint32(len(r)))
+		if err != nil {
+			return "", err
+		}
+		if n <= uint32(len(r)) {
+			u := (*[1 << 29]uint16)(unsafe.Pointer(&r[0]))[:]
+			return syscall.UTF16ToString(u), nil
+		}
+		r = make([]uint16, n)
+	}
+}
+
+// GetStringsValue retrieves the []string value for the specified
+// value name associated with an open key k. It also returns the value's type.
+// If value does not exist, GetStringsValue returns ErrNotExist.
+// If value is not MULTI_SZ, it will return the correct value
+// type and ErrUnexpectedType.
+func (k Key) GetStringsValue(name string) (val []string, valtype uint32, err error) {
+	data, typ, err2 := k.getValue(name, make([]byte, 64))
+	if err2 != nil {
+		return nil, typ, err2
+	}
+	if typ != MULTI_SZ {
+		return nil, typ, ErrUnexpectedType
+	}
+	if len(data) == 0 {
+		return nil, typ, nil
+	}
+	p := (*[1 << 29]uint16)(unsafe.Pointer(&data[0]))[:len(data)/2]
+	if len(p) == 0 {
+		return nil, typ, nil
+	}
+	if p[len(p)-1] == 0 {
+		p = p[:len(p)-1] // remove terminating null
+	}
+	val = make([]string, 0, 5)
+	from := 0
+	for i, c := range p {
+		if c == 0 {
+			val = append(val, string(utf16.Decode(p[from:i])))
+			from = i + 1
+		}
+	}
+	return val, typ, nil
+}
+
+// GetIntegerValue retrieves the integer value for the specified
+// value name associated with an open key k. It also returns the value's type.
+// If value does not exist, GetIntegerValue returns ErrNotExist.
+// If value is not DWORD or QWORD, it will return the correct value
+// type and ErrUnexpectedType.
+func (k Key) GetIntegerValue(name string) (val uint64, valtype uint32, err error) {
+	data, typ, err2 := k.getValue(name, make([]byte, 8))
+	if err2 != nil {
+		return 0, typ, err2
+	}
+	switch typ {
+	case DWORD:
+		if len(data) != 4 {
+			return 0, typ, errors.New("DWORD value is not 4 bytes long")
+		}
+		return uint64(*(*uint32)(unsafe.Pointer(&data[0]))), DWORD, nil
+	case QWORD:
+		if len(data) != 8 {
+			return 0, typ, errors.New("QWORD value is not 8 bytes long")
+		}
+		return uint64(*(*uint64)(unsafe.Pointer(&data[0]))), QWORD, nil
+	default:
+		return 0, typ, ErrUnexpectedType
+	}
+}
+
+// GetBinaryValue retrieves the binary value for the specified
+// value name associated with an open key k. It also returns the value's type.
+// If value does not exist, GetBinaryValue returns ErrNotExist.
+// If value is not BINARY, it will return the correct value
+// type and ErrUnexpectedType.
+func (k Key) GetBinaryValue(name string) (val []byte, valtype uint32, err error) {
+	data, typ, err2 := k.getValue(name, make([]byte, 64))
+	if err2 != nil {
+		return nil, typ, err2
+	}
+	if typ != BINARY {
+		return nil, typ, ErrUnexpectedType
+	}
+	return data, typ, nil
+}
+
+func (k Key) setValue(name string, valtype uint32, data []byte) error {
+	p, err := syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return err
+	}
+	if len(data) == 0 {
+		return regSetValueEx(syscall.Handle(k), p, 0, valtype, nil, 0)
+	}
+	return regSetValueEx(syscall.Handle(k), p, 0, valtype, &data[0], uint32(len(data)))
+}
+
+// SetDWordValue sets the data and type of a name value
+// under key k to value and DWORD.
+func (k Key) SetDWordValue(name string, value uint32) error {
+	return k.setValue(name, DWORD, (*[4]byte)(unsafe.Pointer(&value))[:])
+}
+
+// SetQWordValue sets the data and type of a name value
+// under key k to value and QWORD.
+func (k Key) SetQWordValue(name string, value uint64) error {
+	return k.setValue(name, QWORD, (*[8]byte)(unsafe.Pointer(&value))[:])
+}
+
+func (k Key) setStringValue(name string, valtype uint32, value string) error {
+	v, err := syscall.UTF16FromString(value)
+	if err != nil {
+		return err
+	}
+	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[:len(v)*2]
+	return k.setValue(name, valtype, buf)
+}
+
+// SetStringValue sets the data and type of a name value
+// under key k to value and SZ. The value must not contain a zero byte.
+func (k Key) SetStringValue(name, value string) error {
+	return k.setStringValue(name, SZ, value)
+}
+
+// SetExpandStringValue sets the data and type of a name value
+// under key k to value and EXPAND_SZ. The value must not contain a zero byte.
+func (k Key) SetExpandStringValue(name, value string) error {
+	return k.setStringValue(name, EXPAND_SZ, value)
+}
+
+// SetStringsValue sets the data and type of a name value
+// under key k to value and MULTI_SZ. The value strings
+// must not contain a zero byte.
+func (k Key) SetStringsValue(name string, value []string) error {
+	ss := ""
+	for _, s := range value {
+		for i := 0; i < len(s); i++ {
+			if s[i] == 0 {
+				return errors.New("string cannot have 0 inside")
+			}
+		}
+		ss += s + "\x00"
+	}
+	v := utf16.Encode([]rune(ss + "\x00"))
+	buf := (*[1 << 29]byte)(unsafe.Pointer(&v[0]))[:len(v)*2]
+	return k.setValue(name, MULTI_SZ, buf)
+}
+
+// SetBinaryValue sets the data and type of a name value
+// under key k to value and BINARY.
+func (k Key) SetBinaryValue(name string, value []byte) error {
+	return k.setValue(name, BINARY, value)
+}
+
+// DeleteValue removes a named value from the key k.
+func (k Key) DeleteValue(name string) error {
+	return regDeleteValue(syscall.Handle(k), syscall.StringToUTF16Ptr(name))
+}
+
+// ReadValueNames returns the value names of key k.
+// The parameter n controls the number of returned names,
+// analogous to the way os.File.Readdirnames works.
+func (k Key) ReadValueNames(n int) ([]string, error) {
+	ki, err := k.Stat()
+	if err != nil {
+		return nil, err
+	}
+	names := make([]string, 0, ki.ValueCount)
+	buf := make([]uint16, ki.MaxValueNameLen+1) // extra room for terminating null character
+loopItems:
+	for i := uint32(0); ; i++ {
+		if n > 0 {
+			if len(names) == n {
+				return names, nil
+			}
+		}
+		l := uint32(len(buf))
+		for {
+			err := regEnumValue(syscall.Handle(k), i, &buf[0], &l, nil, nil, nil, nil)
+			if err == nil {
+				break
+			}
+			if err == syscall.ERROR_MORE_DATA {
+				// Double buffer size and try again.
+				l = uint32(2 * len(buf))
+				buf = make([]uint16, l)
+				continue
+			}
+			if err == _ERROR_NO_MORE_ITEMS {
+				break loopItems
+			}
+			return names, err
+		}
+		names = append(names, syscall.UTF16ToString(buf[:l]))
+	}
+	if n > len(names) {
+		return names, io.EOF
+	}
+	return names, nil
+}
diff --git a/vendor/golang.org/x/sys/windows/registry/zsyscall_windows.go b/vendor/golang.org/x/sys/windows/registry/zsyscall_windows.go
new file mode 100644
index 000000000..3778075da
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/registry/zsyscall_windows.go
@@ -0,0 +1,120 @@
+// Code generated by 'go generate'; DO NOT EDIT.
+
+package registry
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
+var (
+	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+
+	procRegCreateKeyExW           = modadvapi32.NewProc("RegCreateKeyExW")
+	procRegDeleteKeyW             = modadvapi32.NewProc("RegDeleteKeyW")
+	procRegSetValueExW            = modadvapi32.NewProc("RegSetValueExW")
+	procRegEnumValueW             = modadvapi32.NewProc("RegEnumValueW")
+	procRegDeleteValueW           = modadvapi32.NewProc("RegDeleteValueW")
+	procRegLoadMUIStringW         = modadvapi32.NewProc("RegLoadMUIStringW")
+	procRegConnectRegistryW       = modadvapi32.NewProc("RegConnectRegistryW")
+	procExpandEnvironmentStringsW = modkernel32.NewProc("ExpandEnvironmentStringsW")
+)
+
+func regCreateKeyEx(key syscall.Handle, subkey *uint16, reserved uint32, class *uint16, options uint32, desired uint32, sa *syscall.SecurityAttributes, result *syscall.Handle, disposition *uint32) (regerrno error) {
+	r0, _, _ := syscall.Syscall9(procRegCreateKeyExW.Addr(), 9, uintptr(key), uintptr(unsafe.Pointer(subkey)), uintptr(reserved), uintptr(unsafe.Pointer(class)), uintptr(options), uintptr(desired), uintptr(unsafe.Pointer(sa)), uintptr(unsafe.Pointer(result)), uintptr(unsafe.Pointer(disposition)))
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regDeleteKey(key syscall.Handle, subkey *uint16) (regerrno error) {
+	r0, _, _ := syscall.Syscall(procRegDeleteKeyW.Addr(), 2, uintptr(key), uintptr(unsafe.Pointer(subkey)), 0)
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regSetValueEx(key syscall.Handle, valueName *uint16, reserved uint32, vtype uint32, buf *byte, bufsize uint32) (regerrno error) {
+	r0, _, _ := syscall.Syscall6(procRegSetValueExW.Addr(), 6, uintptr(key), uintptr(unsafe.Pointer(valueName)), uintptr(reserved), uintptr(vtype), uintptr(unsafe.Pointer(buf)), uintptr(bufsize))
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regEnumValue(key syscall.Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) {
+	r0, _, _ := syscall.Syscall9(procRegEnumValueW.Addr(), 8, uintptr(key), uintptr(index), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(nameLen)), uintptr(unsafe.Pointer(reserved)), uintptr(unsafe.Pointer(valtype)), uintptr(unsafe.Pointer(buf)), uintptr(unsafe.Pointer(buflen)), 0)
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regDeleteValue(key syscall.Handle, name *uint16) (regerrno error) {
+	r0, _, _ := syscall.Syscall(procRegDeleteValueW.Addr(), 2, uintptr(key), uintptr(unsafe.Pointer(name)), 0)
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regLoadMUIString(key syscall.Handle, name *uint16, buf *uint16, buflen uint32, buflenCopied *uint32, flags uint32, dir *uint16) (regerrno error) {
+	r0, _, _ := syscall.Syscall9(procRegLoadMUIStringW.Addr(), 7, uintptr(key), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buf)), uintptr(buflen), uintptr(unsafe.Pointer(buflenCopied)), uintptr(flags), uintptr(unsafe.Pointer(dir)), 0, 0)
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func regConnectRegistry(machinename *uint16, key syscall.Handle, result *syscall.Handle) (regerrno error) {
+	r0, _, _ := syscall.Syscall(procRegConnectRegistryW.Addr(), 3, uintptr(unsafe.Pointer(machinename)), uintptr(key), uintptr(unsafe.Pointer(result)))
+	if r0 != 0 {
+		regerrno = syscall.Errno(r0)
+	}
+	return
+}
+
+func expandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) {
+	r0, _, e1 := syscall.Syscall(procExpandEnvironmentStringsW.Addr(), 3, uintptr(unsafe.Pointer(src)), uintptr(unsafe.Pointer(dst)), uintptr(size))
+	n = uint32(r0)
+	if n == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/debug/log.go b/vendor/golang.org/x/sys/windows/svc/debug/log.go
new file mode 100644
index 000000000..e51ab42a1
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/debug/log.go
@@ -0,0 +1,56 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package debug
+
+import (
+	"os"
+	"strconv"
+)
+
+// Log interface allows different log implementations to be used.
+type Log interface {
+	Close() error
+	Info(eid uint32, msg string) error
+	Warning(eid uint32, msg string) error
+	Error(eid uint32, msg string) error
+}
+
+// ConsoleLog provides access to the console.
+type ConsoleLog struct {
+	Name string
+}
+
+// New creates new ConsoleLog.
+func New(source string) *ConsoleLog {
+	return &ConsoleLog{Name: source}
+}
+
+// Close closes console log l.
+func (l *ConsoleLog) Close() error {
+	return nil
+}
+
+func (l *ConsoleLog) report(kind string, eid uint32, msg string) error {
+	s := l.Name + "." + kind + "(" + strconv.Itoa(int(eid)) + "): " + msg + "\n"
+	_, err := os.Stdout.Write([]byte(s))
+	return err
+}
+
+// Info writes an information event msg with event id eid to the console l.
+func (l *ConsoleLog) Info(eid uint32, msg string) error {
+	return l.report("info", eid, msg)
+}
+
+// Warning writes an warning event msg with event id eid to the console l.
+func (l *ConsoleLog) Warning(eid uint32, msg string) error {
+	return l.report("warn", eid, msg)
+}
+
+// Error writes an error event msg with event id eid to the console l.
+func (l *ConsoleLog) Error(eid uint32, msg string) error {
+	return l.report("error", eid, msg)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/debug/service.go b/vendor/golang.org/x/sys/windows/svc/debug/service.go
new file mode 100644
index 000000000..e621b87ad
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/debug/service.go
@@ -0,0 +1,45 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// Package debug provides facilities to execute svc.Handler on console.
+//
+package debug
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"golang.org/x/sys/windows/svc"
+)
+
+// Run executes service name by calling appropriate handler function.
+// The process is running on console, unlike real service. Use Ctrl+C to
+// send "Stop" command to your service.
+func Run(name string, handler svc.Handler) error {
+	cmds := make(chan svc.ChangeRequest)
+	changes := make(chan svc.Status)
+
+	sig := make(chan os.Signal)
+	signal.Notify(sig)
+
+	go func() {
+		status := svc.Status{State: svc.Stopped}
+		for {
+			select {
+			case <-sig:
+				cmds <- svc.ChangeRequest{Cmd: svc.Stop, CurrentStatus: status}
+			case status = <-changes:
+			}
+		}
+	}()
+
+	_, errno := handler.Execute([]string{name}, cmds, changes)
+	if errno != 0 {
+		return syscall.Errno(errno)
+	}
+	return nil
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/event.go b/vendor/golang.org/x/sys/windows/svc/event.go
new file mode 100644
index 000000000..0508e2288
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/event.go
@@ -0,0 +1,48 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package svc
+
+import (
+	"errors"
+
+	"golang.org/x/sys/windows"
+)
+
+// event represents auto-reset, initially non-signaled Windows event.
+// It is used to communicate between go and asm parts of this package.
+type event struct {
+	h windows.Handle
+}
+
+func newEvent() (*event, error) {
+	h, err := windows.CreateEvent(nil, 0, 0, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &event{h: h}, nil
+}
+
+func (e *event) Close() error {
+	return windows.CloseHandle(e.h)
+}
+
+func (e *event) Set() error {
+	return windows.SetEvent(e.h)
+}
+
+func (e *event) Wait() error {
+	s, err := windows.WaitForSingleObject(e.h, windows.INFINITE)
+	switch s {
+	case windows.WAIT_OBJECT_0:
+		break
+	case windows.WAIT_FAILED:
+		return err
+	default:
+		return errors.New("unexpected result from WaitForSingleObject")
+	}
+	return nil
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/eventlog/install.go b/vendor/golang.org/x/sys/windows/svc/eventlog/install.go
new file mode 100644
index 000000000..c76a3760a
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/eventlog/install.go
@@ -0,0 +1,80 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package eventlog
+
+import (
+	"errors"
+
+	"golang.org/x/sys/windows"
+	"golang.org/x/sys/windows/registry"
+)
+
+const (
+	// Log levels.
+	Info    = windows.EVENTLOG_INFORMATION_TYPE
+	Warning = windows.EVENTLOG_WARNING_TYPE
+	Error   = windows.EVENTLOG_ERROR_TYPE
+)
+
+const addKeyName = `SYSTEM\CurrentControlSet\Services\EventLog\Application`
+
+// Install modifies PC registry to allow logging with an event source src.
+// It adds all required keys and values to the event log registry key.
+// Install uses msgFile as the event message file. If useExpandKey is true,
+// the event message file is installed as REG_EXPAND_SZ value,
+// otherwise as REG_SZ. Use bitwise of log.Error, log.Warning and
+// log.Info to specify events supported by the new event source.
+func Install(src, msgFile string, useExpandKey bool, eventsSupported uint32) error {
+	appkey, err := registry.OpenKey(registry.LOCAL_MACHINE, addKeyName, registry.CREATE_SUB_KEY)
+	if err != nil {
+		return err
+	}
+	defer appkey.Close()
+
+	sk, alreadyExist, err := registry.CreateKey(appkey, src, registry.SET_VALUE)
+	if err != nil {
+		return err
+	}
+	defer sk.Close()
+	if alreadyExist {
+		return errors.New(addKeyName + `\` + src + " registry key already exists")
+	}
+
+	err = sk.SetDWordValue("CustomSource", 1)
+	if err != nil {
+		return err
+	}
+	if useExpandKey {
+		err = sk.SetExpandStringValue("EventMessageFile", msgFile)
+	} else {
+		err = sk.SetStringValue("EventMessageFile", msgFile)
+	}
+	if err != nil {
+		return err
+	}
+	err = sk.SetDWordValue("TypesSupported", eventsSupported)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// InstallAsEventCreate is the same as Install, but uses
+// %SystemRoot%\System32\EventCreate.exe as the event message file.
+func InstallAsEventCreate(src string, eventsSupported uint32) error {
+	return Install(src, "%SystemRoot%\\System32\\EventCreate.exe", true, eventsSupported)
+}
+
+// Remove deletes all registry elements installed by the correspondent Install.
+func Remove(src string) error {
+	appkey, err := registry.OpenKey(registry.LOCAL_MACHINE, addKeyName, registry.SET_VALUE)
+	if err != nil {
+		return err
+	}
+	defer appkey.Close()
+	return registry.DeleteKey(appkey, src)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/eventlog/log.go b/vendor/golang.org/x/sys/windows/svc/eventlog/log.go
new file mode 100644
index 000000000..46e5153d0
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/eventlog/log.go
@@ -0,0 +1,70 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// Package eventlog implements access to Windows event log.
+//
+package eventlog
+
+import (
+	"errors"
+	"syscall"
+
+	"golang.org/x/sys/windows"
+)
+
+// Log provides access to the system log.
+type Log struct {
+	Handle windows.Handle
+}
+
+// Open retrieves a handle to the specified event log.
+func Open(source string) (*Log, error) {
+	return OpenRemote("", source)
+}
+
+// OpenRemote does the same as Open, but on different computer host.
+func OpenRemote(host, source string) (*Log, error) {
+	if source == "" {
+		return nil, errors.New("Specify event log source")
+	}
+	var s *uint16
+	if host != "" {
+		s = syscall.StringToUTF16Ptr(host)
+	}
+	h, err := windows.RegisterEventSource(s, syscall.StringToUTF16Ptr(source))
+	if err != nil {
+		return nil, err
+	}
+	return &Log{Handle: h}, nil
+}
+
+// Close closes event log l.
+func (l *Log) Close() error {
+	return windows.DeregisterEventSource(l.Handle)
+}
+
+func (l *Log) report(etype uint16, eid uint32, msg string) error {
+	ss := []*uint16{syscall.StringToUTF16Ptr(msg)}
+	return windows.ReportEvent(l.Handle, etype, 0, eid, 0, 1, 0, &ss[0], nil)
+}
+
+// Info writes an information event msg with event id eid to the end of event log l.
+// When EventCreate.exe is used, eid must be between 1 and 1000.
+func (l *Log) Info(eid uint32, msg string) error {
+	return l.report(windows.EVENTLOG_INFORMATION_TYPE, eid, msg)
+}
+
+// Warning writes an warning event msg with event id eid to the end of event log l.
+// When EventCreate.exe is used, eid must be between 1 and 1000.
+func (l *Log) Warning(eid uint32, msg string) error {
+	return l.report(windows.EVENTLOG_WARNING_TYPE, eid, msg)
+}
+
+// Error writes an error event msg with event id eid to the end of event log l.
+// When EventCreate.exe is used, eid must be between 1 and 1000.
+func (l *Log) Error(eid uint32, msg string) error {
+	return l.report(windows.EVENTLOG_ERROR_TYPE, eid, msg)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/go12.c b/vendor/golang.org/x/sys/windows/svc/go12.c
new file mode 100644
index 000000000..6f1be1fa3
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/go12.c
@@ -0,0 +1,24 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+// +build !go1.3
+
+// copied from pkg/runtime
+typedef	unsigned int	uint32;
+typedef	unsigned long long int	uint64;
+#ifdef _64BIT
+typedef	uint64		uintptr;
+#else
+typedef	uint32		uintptr;
+#endif
+
+// from sys_386.s or sys_amd64.s
+void ·servicemain(void);
+
+void
+·getServiceMain(uintptr *r)
+{
+	*r = (uintptr)·servicemain;
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/go12.go b/vendor/golang.org/x/sys/windows/svc/go12.go
new file mode 100644
index 000000000..cd8b913c9
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/go12.go
@@ -0,0 +1,11 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+// +build !go1.3
+
+package svc
+
+// from go12.c
+func getServiceMain(r *uintptr)
diff --git a/vendor/golang.org/x/sys/windows/svc/go13.go b/vendor/golang.org/x/sys/windows/svc/go13.go
new file mode 100644
index 000000000..9d7f3cec5
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/go13.go
@@ -0,0 +1,31 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+// +build go1.3
+
+package svc
+
+import "unsafe"
+
+const ptrSize = 4 << (^uintptr(0) >> 63) // unsafe.Sizeof(uintptr(0)) but an ideal const
+
+// Should be a built-in for unsafe.Pointer?
+func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(p) + x)
+}
+
+// funcPC returns the entry PC of the function f.
+// It assumes that f is a func value. Otherwise the behavior is undefined.
+func funcPC(f interface{}) uintptr {
+	return **(**uintptr)(add(unsafe.Pointer(&f), ptrSize))
+}
+
+// from sys_386.s and sys_amd64.s
+func servicectlhandler(ctl uint32) uintptr
+func servicemain(argc uint32, argv **uint16)
+
+func getServiceMain(r *uintptr) {
+	*r = funcPC(servicemain)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/config.go b/vendor/golang.org/x/sys/windows/svc/mgr/config.go
new file mode 100644
index 000000000..03bf41f51
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/config.go
@@ -0,0 +1,139 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package mgr
+
+import (
+	"syscall"
+	"unicode/utf16"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+const (
+	// Service start types.
+	StartManual    = windows.SERVICE_DEMAND_START // the service must be started manually
+	StartAutomatic = windows.SERVICE_AUTO_START   // the service will start by itself whenever the computer reboots
+	StartDisabled  = windows.SERVICE_DISABLED     // the service cannot be started
+
+	// The severity of the error, and action taken,
+	// if this service fails to start.
+	ErrorCritical = windows.SERVICE_ERROR_CRITICAL
+	ErrorIgnore   = windows.SERVICE_ERROR_IGNORE
+	ErrorNormal   = windows.SERVICE_ERROR_NORMAL
+	ErrorSevere   = windows.SERVICE_ERROR_SEVERE
+)
+
+// TODO(brainman): Password is not returned by windows.QueryServiceConfig, not sure how to get it.
+
+type Config struct {
+	ServiceType      uint32
+	StartType        uint32
+	ErrorControl     uint32
+	BinaryPathName   string // fully qualified path to the service binary file, can also include arguments for an auto-start service
+	LoadOrderGroup   string
+	TagId            uint32
+	Dependencies     []string
+	ServiceStartName string // name of the account under which the service should run
+	DisplayName      string
+	Password         string
+	Description      string
+}
+
+func toString(p *uint16) string {
+	if p == nil {
+		return ""
+	}
+	return syscall.UTF16ToString((*[4096]uint16)(unsafe.Pointer(p))[:])
+}
+
+func toStringSlice(ps *uint16) []string {
+	if ps == nil {
+		return nil
+	}
+	r := make([]string, 0)
+	for from, i, p := 0, 0, (*[1 << 24]uint16)(unsafe.Pointer(ps)); true; i++ {
+		if p[i] == 0 {
+			// empty string marks the end
+			if i <= from {
+				break
+			}
+			r = append(r, string(utf16.Decode(p[from:i])))
+			from = i + 1
+		}
+	}
+	return r
+}
+
+// Config retrieves service s configuration paramteres.
+func (s *Service) Config() (Config, error) {
+	var p *windows.QUERY_SERVICE_CONFIG
+	n := uint32(1024)
+	for {
+		b := make([]byte, n)
+		p = (*windows.QUERY_SERVICE_CONFIG)(unsafe.Pointer(&b[0]))
+		err := windows.QueryServiceConfig(s.Handle, p, n, &n)
+		if err == nil {
+			break
+		}
+		if err.(syscall.Errno) != syscall.ERROR_INSUFFICIENT_BUFFER {
+			return Config{}, err
+		}
+		if n <= uint32(len(b)) {
+			return Config{}, err
+		}
+	}
+
+	var p2 *windows.SERVICE_DESCRIPTION
+	n = uint32(1024)
+	for {
+		b := make([]byte, n)
+		p2 = (*windows.SERVICE_DESCRIPTION)(unsafe.Pointer(&b[0]))
+		err := windows.QueryServiceConfig2(s.Handle,
+			windows.SERVICE_CONFIG_DESCRIPTION, &b[0], n, &n)
+		if err == nil {
+			break
+		}
+		if err.(syscall.Errno) != syscall.ERROR_INSUFFICIENT_BUFFER {
+			return Config{}, err
+		}
+		if n <= uint32(len(b)) {
+			return Config{}, err
+		}
+	}
+
+	return Config{
+		ServiceType:      p.ServiceType,
+		StartType:        p.StartType,
+		ErrorControl:     p.ErrorControl,
+		BinaryPathName:   toString(p.BinaryPathName),
+		LoadOrderGroup:   toString(p.LoadOrderGroup),
+		TagId:            p.TagId,
+		Dependencies:     toStringSlice(p.Dependencies),
+		ServiceStartName: toString(p.ServiceStartName),
+		DisplayName:      toString(p.DisplayName),
+		Description:      toString(p2.Description),
+	}, nil
+}
+
+func updateDescription(handle windows.Handle, desc string) error {
+	d := windows.SERVICE_DESCRIPTION{Description: toPtr(desc)}
+	return windows.ChangeServiceConfig2(handle,
+		windows.SERVICE_CONFIG_DESCRIPTION, (*byte)(unsafe.Pointer(&d)))
+}
+
+// UpdateConfig updates service s configuration parameters.
+func (s *Service) UpdateConfig(c Config) error {
+	err := windows.ChangeServiceConfig(s.Handle, c.ServiceType, c.StartType,
+		c.ErrorControl, toPtr(c.BinaryPathName), toPtr(c.LoadOrderGroup),
+		nil, toStringBlock(c.Dependencies), toPtr(c.ServiceStartName),
+		toPtr(c.Password), toPtr(c.DisplayName))
+	if err != nil {
+		return err
+	}
+	return updateDescription(s.Handle, c.Description)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/mgr.go b/vendor/golang.org/x/sys/windows/svc/mgr/mgr.go
new file mode 100644
index 000000000..76965b560
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/mgr.go
@@ -0,0 +1,162 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// Package mgr can be used to manage Windows service programs.
+// It can be used to install and remove them. It can also start,
+// stop and pause them. The package can query / change current
+// service state and config parameters.
+//
+package mgr
+
+import (
+	"syscall"
+	"unicode/utf16"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+// Mgr is used to manage Windows service.
+type Mgr struct {
+	Handle windows.Handle
+}
+
+// Connect establishes a connection to the service control manager.
+func Connect() (*Mgr, error) {
+	return ConnectRemote("")
+}
+
+// ConnectRemote establishes a connection to the
+// service control manager on computer named host.
+func ConnectRemote(host string) (*Mgr, error) {
+	var s *uint16
+	if host != "" {
+		s = syscall.StringToUTF16Ptr(host)
+	}
+	h, err := windows.OpenSCManager(s, nil, windows.SC_MANAGER_ALL_ACCESS)
+	if err != nil {
+		return nil, err
+	}
+	return &Mgr{Handle: h}, nil
+}
+
+// Disconnect closes connection to the service control manager m.
+func (m *Mgr) Disconnect() error {
+	return windows.CloseServiceHandle(m.Handle)
+}
+
+func toPtr(s string) *uint16 {
+	if len(s) == 0 {
+		return nil
+	}
+	return syscall.StringToUTF16Ptr(s)
+}
+
+// toStringBlock terminates strings in ss with 0, and then
+// concatenates them together. It also adds extra 0 at the end.
+func toStringBlock(ss []string) *uint16 {
+	if len(ss) == 0 {
+		return nil
+	}
+	t := ""
+	for _, s := range ss {
+		if s != "" {
+			t += s + "\x00"
+		}
+	}
+	if t == "" {
+		return nil
+	}
+	t += "\x00"
+	return &utf16.Encode([]rune(t))[0]
+}
+
+// CreateService installs new service name on the system.
+// The service will be executed by running exepath binary.
+// Use config c to specify service parameters.
+// Any args will be passed as command-line arguments when
+// the service is started; these arguments are distinct from
+// the arguments passed to Service.Start or via the "Start
+// parameters" field in the service's Properties dialog box.
+func (m *Mgr) CreateService(name, exepath string, c Config, args ...string) (*Service, error) {
+	if c.StartType == 0 {
+		c.StartType = StartManual
+	}
+	if c.ErrorControl == 0 {
+		c.ErrorControl = ErrorNormal
+	}
+	if c.ServiceType == 0 {
+		c.ServiceType = windows.SERVICE_WIN32_OWN_PROCESS
+	}
+	s := syscall.EscapeArg(exepath)
+	for _, v := range args {
+		s += " " + syscall.EscapeArg(v)
+	}
+	h, err := windows.CreateService(m.Handle, toPtr(name), toPtr(c.DisplayName),
+		windows.SERVICE_ALL_ACCESS, c.ServiceType,
+		c.StartType, c.ErrorControl, toPtr(s), toPtr(c.LoadOrderGroup),
+		nil, toStringBlock(c.Dependencies), toPtr(c.ServiceStartName), toPtr(c.Password))
+	if err != nil {
+		return nil, err
+	}
+	if c.Description != "" {
+		err = updateDescription(h, c.Description)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return &Service{Name: name, Handle: h}, nil
+}
+
+// OpenService retrieves access to service name, so it can
+// be interrogated and controlled.
+func (m *Mgr) OpenService(name string) (*Service, error) {
+	h, err := windows.OpenService(m.Handle, syscall.StringToUTF16Ptr(name), windows.SERVICE_ALL_ACCESS)
+	if err != nil {
+		return nil, err
+	}
+	return &Service{Name: name, Handle: h}, nil
+}
+
+// ListServices enumerates services in the specified
+// service control manager database m.
+// If the caller does not have the SERVICE_QUERY_STATUS
+// access right to a service, the service is silently
+// omitted from the list of services returned.
+func (m *Mgr) ListServices() ([]string, error) {
+	var err error
+	var bytesNeeded, servicesReturned uint32
+	var buf []byte
+	for {
+		var p *byte
+		if len(buf) > 0 {
+			p = &buf[0]
+		}
+		err = windows.EnumServicesStatusEx(m.Handle, windows.SC_ENUM_PROCESS_INFO,
+			windows.SERVICE_WIN32, windows.SERVICE_STATE_ALL,
+			p, uint32(len(buf)), &bytesNeeded, &servicesReturned, nil, nil)
+		if err == nil {
+			break
+		}
+		if err != syscall.ERROR_MORE_DATA {
+			return nil, err
+		}
+		if bytesNeeded <= uint32(len(buf)) {
+			return nil, err
+		}
+		buf = make([]byte, bytesNeeded)
+	}
+	if servicesReturned == 0 {
+		return nil, nil
+	}
+	services := (*[1 << 20]windows.ENUM_SERVICE_STATUS_PROCESS)(unsafe.Pointer(&buf[0]))[:servicesReturned]
+	var names []string
+	for _, s := range services {
+		name := syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(s.ServiceName))[:])
+		names = append(names, name)
+	}
+	return names, nil
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/mgr/service.go b/vendor/golang.org/x/sys/windows/svc/mgr/service.go
new file mode 100644
index 000000000..fdc46af5f
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/mgr/service.go
@@ -0,0 +1,72 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package mgr
+
+import (
+	"syscall"
+
+	"golang.org/x/sys/windows"
+	"golang.org/x/sys/windows/svc"
+)
+
+// TODO(brainman): Use EnumDependentServices to enumerate dependent services.
+
+// Service is used to access Windows service.
+type Service struct {
+	Name   string
+	Handle windows.Handle
+}
+
+// Delete marks service s for deletion from the service control manager database.
+func (s *Service) Delete() error {
+	return windows.DeleteService(s.Handle)
+}
+
+// Close relinquish access to the service s.
+func (s *Service) Close() error {
+	return windows.CloseServiceHandle(s.Handle)
+}
+
+// Start starts service s.
+// args will be passed to svc.Handler.Execute.
+func (s *Service) Start(args ...string) error {
+	var p **uint16
+	if len(args) > 0 {
+		vs := make([]*uint16, len(args))
+		for i := range vs {
+			vs[i] = syscall.StringToUTF16Ptr(args[i])
+		}
+		p = &vs[0]
+	}
+	return windows.StartService(s.Handle, uint32(len(args)), p)
+}
+
+// Control sends state change request c to the servce s.
+func (s *Service) Control(c svc.Cmd) (svc.Status, error) {
+	var t windows.SERVICE_STATUS
+	err := windows.ControlService(s.Handle, uint32(c), &t)
+	if err != nil {
+		return svc.Status{}, err
+	}
+	return svc.Status{
+		State:   svc.State(t.CurrentState),
+		Accepts: svc.Accepted(t.ControlsAccepted),
+	}, nil
+}
+
+// Query returns current status of service s.
+func (s *Service) Query() (svc.Status, error) {
+	var t windows.SERVICE_STATUS
+	err := windows.QueryServiceStatus(s.Handle, &t)
+	if err != nil {
+		return svc.Status{}, err
+	}
+	return svc.Status{
+		State:   svc.State(t.CurrentState),
+		Accepts: svc.Accepted(t.ControlsAccepted),
+	}, nil
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/security.go b/vendor/golang.org/x/sys/windows/svc/security.go
new file mode 100644
index 000000000..6fbc9236e
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/security.go
@@ -0,0 +1,62 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+package svc
+
+import (
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+func allocSid(subAuth0 uint32) (*windows.SID, error) {
+	var sid *windows.SID
+	err := windows.AllocateAndInitializeSid(&windows.SECURITY_NT_AUTHORITY,
+		1, subAuth0, 0, 0, 0, 0, 0, 0, 0, &sid)
+	if err != nil {
+		return nil, err
+	}
+	return sid, nil
+}
+
+// IsAnInteractiveSession determines if calling process is running interactively.
+// It queries the process token for membership in the Interactive group.
+// http://stackoverflow.com/questions/2668851/how-do-i-detect-that-my-application-is-running-as-service-or-in-an-interactive-s
+func IsAnInteractiveSession() (bool, error) {
+	interSid, err := allocSid(windows.SECURITY_INTERACTIVE_RID)
+	if err != nil {
+		return false, err
+	}
+	defer windows.FreeSid(interSid)
+
+	serviceSid, err := allocSid(windows.SECURITY_SERVICE_RID)
+	if err != nil {
+		return false, err
+	}
+	defer windows.FreeSid(serviceSid)
+
+	t, err := windows.OpenCurrentProcessToken()
+	if err != nil {
+		return false, err
+	}
+	defer t.Close()
+
+	gs, err := t.GetTokenGroups()
+	if err != nil {
+		return false, err
+	}
+	p := unsafe.Pointer(&gs.Groups[0])
+	groups := (*[2 << 20]windows.SIDAndAttributes)(p)[:gs.GroupCount]
+	for _, g := range groups {
+		if windows.EqualSid(g.Sid, interSid) {
+			return true, nil
+		}
+		if windows.EqualSid(g.Sid, serviceSid) {
+			return false, nil
+		}
+	}
+	return false, nil
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/service.go b/vendor/golang.org/x/sys/windows/svc/service.go
new file mode 100644
index 000000000..cda26b54b
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/service.go
@@ -0,0 +1,363 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// Package svc provides everything required to build Windows service.
+//
+package svc
+
+import (
+	"errors"
+	"runtime"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+// State describes service execution state (Stopped, Running and so on).
+type State uint32
+
+const (
+	Stopped         = State(windows.SERVICE_STOPPED)
+	StartPending    = State(windows.SERVICE_START_PENDING)
+	StopPending     = State(windows.SERVICE_STOP_PENDING)
+	Running         = State(windows.SERVICE_RUNNING)
+	ContinuePending = State(windows.SERVICE_CONTINUE_PENDING)
+	PausePending    = State(windows.SERVICE_PAUSE_PENDING)
+	Paused          = State(windows.SERVICE_PAUSED)
+)
+
+// Cmd represents service state change request. It is sent to a service
+// by the service manager, and should be actioned upon by the service.
+type Cmd uint32
+
+const (
+	Stop                  = Cmd(windows.SERVICE_CONTROL_STOP)
+	Pause                 = Cmd(windows.SERVICE_CONTROL_PAUSE)
+	Continue              = Cmd(windows.SERVICE_CONTROL_CONTINUE)
+	Interrogate           = Cmd(windows.SERVICE_CONTROL_INTERROGATE)
+	Shutdown              = Cmd(windows.SERVICE_CONTROL_SHUTDOWN)
+	ParamChange           = Cmd(windows.SERVICE_CONTROL_PARAMCHANGE)
+	NetBindAdd            = Cmd(windows.SERVICE_CONTROL_NETBINDADD)
+	NetBindRemove         = Cmd(windows.SERVICE_CONTROL_NETBINDREMOVE)
+	NetBindEnable         = Cmd(windows.SERVICE_CONTROL_NETBINDENABLE)
+	NetBindDisable        = Cmd(windows.SERVICE_CONTROL_NETBINDDISABLE)
+	DeviceEvent           = Cmd(windows.SERVICE_CONTROL_DEVICEEVENT)
+	HardwareProfileChange = Cmd(windows.SERVICE_CONTROL_HARDWAREPROFILECHANGE)
+	PowerEvent            = Cmd(windows.SERVICE_CONTROL_POWEREVENT)
+	SessionChange         = Cmd(windows.SERVICE_CONTROL_SESSIONCHANGE)
+)
+
+// Accepted is used to describe commands accepted by the service.
+// Note that Interrogate is always accepted.
+type Accepted uint32
+
+const (
+	AcceptStop                  = Accepted(windows.SERVICE_ACCEPT_STOP)
+	AcceptShutdown              = Accepted(windows.SERVICE_ACCEPT_SHUTDOWN)
+	AcceptPauseAndContinue      = Accepted(windows.SERVICE_ACCEPT_PAUSE_CONTINUE)
+	AcceptParamChange           = Accepted(windows.SERVICE_ACCEPT_PARAMCHANGE)
+	AcceptNetBindChange         = Accepted(windows.SERVICE_ACCEPT_NETBINDCHANGE)
+	AcceptHardwareProfileChange = Accepted(windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE)
+	AcceptPowerEvent            = Accepted(windows.SERVICE_ACCEPT_POWEREVENT)
+	AcceptSessionChange         = Accepted(windows.SERVICE_ACCEPT_SESSIONCHANGE)
+)
+
+// Status combines State and Accepted commands to fully describe running service.
+type Status struct {
+	State      State
+	Accepts    Accepted
+	CheckPoint uint32 // used to report progress during a lengthy operation
+	WaitHint   uint32 // estimated time required for a pending operation, in milliseconds
+}
+
+// ChangeRequest is sent to the service Handler to request service status change.
+type ChangeRequest struct {
+	Cmd           Cmd
+	EventType     uint32
+	EventData     uintptr
+	CurrentStatus Status
+}
+
+// Handler is the interface that must be implemented to build Windows service.
+type Handler interface {
+
+	// Execute will be called by the package code at the start of
+	// the service, and the service will exit once Execute completes.
+	// Inside Execute you must read service change requests from r and
+	// act accordingly. You must keep service control manager up to date
+	// about state of your service by writing into s as required.
+	// args contains service name followed by argument strings passed
+	// to the service.
+	// You can provide service exit code in exitCode return parameter,
+	// with 0 being "no error". You can also indicate if exit code,
+	// if any, is service specific or not by using svcSpecificEC
+	// parameter.
+	Execute(args []string, r <-chan ChangeRequest, s chan<- Status) (svcSpecificEC bool, exitCode uint32)
+}
+
+var (
+	// These are used by asm code.
+	goWaitsH                       uintptr
+	cWaitsH                        uintptr
+	ssHandle                       uintptr
+	sName                          *uint16
+	sArgc                          uintptr
+	sArgv                          **uint16
+	ctlHandlerExProc               uintptr
+	cSetEvent                      uintptr
+	cWaitForSingleObject           uintptr
+	cRegisterServiceCtrlHandlerExW uintptr
+)
+
+func init() {
+	k := syscall.MustLoadDLL("kernel32.dll")
+	cSetEvent = k.MustFindProc("SetEvent").Addr()
+	cWaitForSingleObject = k.MustFindProc("WaitForSingleObject").Addr()
+	a := syscall.MustLoadDLL("advapi32.dll")
+	cRegisterServiceCtrlHandlerExW = a.MustFindProc("RegisterServiceCtrlHandlerExW").Addr()
+}
+
+// The HandlerEx prototype also has a context pointer but since we don't use
+// it at start-up time we don't have to pass it over either.
+type ctlEvent struct {
+	cmd       Cmd
+	eventType uint32
+	eventData uintptr
+	errno     uint32
+}
+
+// service provides access to windows service api.
+type service struct {
+	name    string
+	h       windows.Handle
+	cWaits  *event
+	goWaits *event
+	c       chan ctlEvent
+	handler Handler
+}
+
+func newService(name string, handler Handler) (*service, error) {
+	var s service
+	var err error
+	s.name = name
+	s.c = make(chan ctlEvent)
+	s.handler = handler
+	s.cWaits, err = newEvent()
+	if err != nil {
+		return nil, err
+	}
+	s.goWaits, err = newEvent()
+	if err != nil {
+		s.cWaits.Close()
+		return nil, err
+	}
+	return &s, nil
+}
+
+func (s *service) close() error {
+	s.cWaits.Close()
+	s.goWaits.Close()
+	return nil
+}
+
+type exitCode struct {
+	isSvcSpecific bool
+	errno         uint32
+}
+
+func (s *service) updateStatus(status *Status, ec *exitCode) error {
+	if s.h == 0 {
+		return errors.New("updateStatus with no service status handle")
+	}
+	var t windows.SERVICE_STATUS
+	t.ServiceType = windows.SERVICE_WIN32_OWN_PROCESS
+	t.CurrentState = uint32(status.State)
+	if status.Accepts&AcceptStop != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_STOP
+	}
+	if status.Accepts&AcceptShutdown != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SHUTDOWN
+	}
+	if status.Accepts&AcceptPauseAndContinue != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PAUSE_CONTINUE
+	}
+	if status.Accepts&AcceptParamChange != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PARAMCHANGE
+	}
+	if status.Accepts&AcceptNetBindChange != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_NETBINDCHANGE
+	}
+	if status.Accepts&AcceptHardwareProfileChange != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE
+	}
+	if status.Accepts&AcceptPowerEvent != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_POWEREVENT
+	}
+	if status.Accepts&AcceptSessionChange != 0 {
+		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SESSIONCHANGE
+	}
+	if ec.errno == 0 {
+		t.Win32ExitCode = windows.NO_ERROR
+		t.ServiceSpecificExitCode = windows.NO_ERROR
+	} else if ec.isSvcSpecific {
+		t.Win32ExitCode = uint32(windows.ERROR_SERVICE_SPECIFIC_ERROR)
+		t.ServiceSpecificExitCode = ec.errno
+	} else {
+		t.Win32ExitCode = ec.errno
+		t.ServiceSpecificExitCode = windows.NO_ERROR
+	}
+	t.CheckPoint = status.CheckPoint
+	t.WaitHint = status.WaitHint
+	return windows.SetServiceStatus(s.h, &t)
+}
+
+const (
+	sysErrSetServiceStatusFailed = uint32(syscall.APPLICATION_ERROR) + iota
+	sysErrNewThreadInCallback
+)
+
+func (s *service) run() {
+	s.goWaits.Wait()
+	s.h = windows.Handle(ssHandle)
+	argv := (*[100]*int16)(unsafe.Pointer(sArgv))[:sArgc]
+	args := make([]string, len(argv))
+	for i, a := range argv {
+		args[i] = syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(a))[:])
+	}
+
+	cmdsToHandler := make(chan ChangeRequest)
+	changesFromHandler := make(chan Status)
+	exitFromHandler := make(chan exitCode)
+
+	go func() {
+		ss, errno := s.handler.Execute(args, cmdsToHandler, changesFromHandler)
+		exitFromHandler <- exitCode{ss, errno}
+	}()
+
+	status := Status{State: Stopped}
+	ec := exitCode{isSvcSpecific: true, errno: 0}
+	var outch chan ChangeRequest
+	inch := s.c
+	var cmd Cmd
+	var evtype uint32
+	var evdata uintptr
+loop:
+	for {
+		select {
+		case r := <-inch:
+			if r.errno != 0 {
+				ec.errno = r.errno
+				break loop
+			}
+			inch = nil
+			outch = cmdsToHandler
+			cmd = r.cmd
+			evtype = r.eventType
+			evdata = r.eventData
+		case outch <- ChangeRequest{cmd, evtype, evdata, status}:
+			inch = s.c
+			outch = nil
+		case c := <-changesFromHandler:
+			err := s.updateStatus(&c, &ec)
+			if err != nil {
+				// best suitable error number
+				ec.errno = sysErrSetServiceStatusFailed
+				if err2, ok := err.(syscall.Errno); ok {
+					ec.errno = uint32(err2)
+				}
+				break loop
+			}
+			status = c
+		case ec = <-exitFromHandler:
+			break loop
+		}
+	}
+
+	s.updateStatus(&Status{State: Stopped}, &ec)
+	s.cWaits.Set()
+}
+
+func newCallback(fn interface{}) (cb uintptr, err error) {
+	defer func() {
+		r := recover()
+		if r == nil {
+			return
+		}
+		cb = 0
+		switch v := r.(type) {
+		case string:
+			err = errors.New(v)
+		case error:
+			err = v
+		default:
+			err = errors.New("unexpected panic in syscall.NewCallback")
+		}
+	}()
+	return syscall.NewCallback(fn), nil
+}
+
+// BUG(brainman): There is no mechanism to run multiple services
+// inside one single executable. Perhaps, it can be overcome by
+// using RegisterServiceCtrlHandlerEx Windows api.
+
+// Run executes service name by calling appropriate handler function.
+func Run(name string, handler Handler) error {
+	runtime.LockOSThread()
+
+	tid := windows.GetCurrentThreadId()
+
+	s, err := newService(name, handler)
+	if err != nil {
+		return err
+	}
+
+	ctlHandler := func(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
+		e := ctlEvent{cmd: Cmd(ctl), eventType: evtype, eventData: evdata}
+		// We assume that this callback function is running on
+		// the same thread as Run. Nowhere in MS documentation
+		// I could find statement to guarantee that. So putting
+		// check here to verify, otherwise things will go bad
+		// quickly, if ignored.
+		i := windows.GetCurrentThreadId()
+		if i != tid {
+			e.errno = sysErrNewThreadInCallback
+		}
+		s.c <- e
+		// Always return NO_ERROR (0) for now.
+		return 0
+	}
+
+	var svcmain uintptr
+	getServiceMain(&svcmain)
+	t := []windows.SERVICE_TABLE_ENTRY{
+		{ServiceName: syscall.StringToUTF16Ptr(s.name), ServiceProc: svcmain},
+		{ServiceName: nil, ServiceProc: 0},
+	}
+
+	goWaitsH = uintptr(s.goWaits.h)
+	cWaitsH = uintptr(s.cWaits.h)
+	sName = t[0].ServiceName
+	ctlHandlerExProc, err = newCallback(ctlHandler)
+	if err != nil {
+		return err
+	}
+
+	go s.run()
+
+	err = windows.StartServiceCtrlDispatcher(&t[0])
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// StatusHandle returns service status handle. It is safe to call this function
+// from inside the Handler.Execute because then it is guaranteed to be set.
+// This code will have to change once multiple services are possible per process.
+func StatusHandle() windows.Handle {
+	return windows.Handle(ssHandle)
+}
diff --git a/vendor/golang.org/x/sys/windows/svc/sys_386.s b/vendor/golang.org/x/sys/windows/svc/sys_386.s
new file mode 100644
index 000000000..2c82a9d91
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/sys_386.s
@@ -0,0 +1,68 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// func servicemain(argc uint32, argv **uint16)
+TEXT ·servicemain(SB),7,$0
+	MOVL	argc+0(FP), AX
+	MOVL	AX, ·sArgc(SB)
+	MOVL	argv+4(FP), AX
+	MOVL	AX, ·sArgv(SB)
+
+	PUSHL	BP
+	PUSHL	BX
+	PUSHL	SI
+	PUSHL	DI
+
+	SUBL	$12, SP
+
+	MOVL	·sName(SB), AX
+	MOVL	AX, (SP)
+	MOVL	$·servicectlhandler(SB), AX
+	MOVL	AX, 4(SP)
+	MOVL	$0, 8(SP)
+	MOVL	·cRegisterServiceCtrlHandlerExW(SB), AX
+	MOVL	SP, BP
+	CALL	AX
+	MOVL	BP, SP
+	CMPL	AX, $0
+	JE	exit
+	MOVL	AX, ·ssHandle(SB)
+
+	MOVL	·goWaitsH(SB), AX
+	MOVL	AX, (SP)
+	MOVL	·cSetEvent(SB), AX
+	MOVL	SP, BP
+	CALL	AX
+	MOVL	BP, SP
+
+	MOVL	·cWaitsH(SB), AX
+	MOVL	AX, (SP)
+	MOVL	$-1, AX
+	MOVL	AX, 4(SP)
+	MOVL	·cWaitForSingleObject(SB), AX
+	MOVL	SP, BP
+	CALL	AX
+	MOVL	BP, SP
+
+exit:
+	ADDL	$12, SP
+
+	POPL	DI
+	POPL	SI
+	POPL	BX
+	POPL	BP
+
+	MOVL	0(SP), CX
+	ADDL	$12, SP
+	JMP	CX
+
+// I do not know why, but this seems to be the only way to call
+// ctlHandlerProc on Windows 7.
+
+// func servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
+TEXT ·servicectlhandler(SB),7,$0
+	MOVL	·ctlHandlerExProc(SB), CX
+	JMP	CX
diff --git a/vendor/golang.org/x/sys/windows/svc/sys_amd64.s b/vendor/golang.org/x/sys/windows/svc/sys_amd64.s
new file mode 100644
index 000000000..bde25e9c4
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/svc/sys_amd64.s
@@ -0,0 +1,42 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build windows
+
+// func servicemain(argc uint32, argv **uint16)
+TEXT ·servicemain(SB),7,$0
+	MOVL	CX, ·sArgc(SB)
+	MOVQ	DX, ·sArgv(SB)
+
+	SUBQ	$32, SP		// stack for the first 4 syscall params
+
+	MOVQ	·sName(SB), CX
+	MOVQ	$·servicectlhandler(SB), DX
+	// BUG(pastarmovj): Figure out a way to pass in context in R8.
+	MOVQ	·cRegisterServiceCtrlHandlerExW(SB), AX
+	CALL	AX
+	CMPQ	AX, $0
+	JE	exit
+	MOVQ	AX, ·ssHandle(SB)
+
+	MOVQ	·goWaitsH(SB), CX
+	MOVQ	·cSetEvent(SB), AX
+	CALL	AX
+
+	MOVQ	·cWaitsH(SB), CX
+	MOVQ	$4294967295, DX
+	MOVQ	·cWaitForSingleObject(SB), AX
+	CALL	AX
+
+exit:
+	ADDQ	$32, SP
+	RET
+
+// I do not know why, but this seems to be the only way to call
+// ctlHandlerProc on Windows 7.
+
+// func ·servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
+TEXT ·servicectlhandler(SB),7,$0
+	MOVQ	·ctlHandlerExProc(SB), AX
+	JMP	AX