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authorkali kaneko (leap communications) <kali@leap.se>2021-04-14 16:54:42 +0200
committerkali kaneko (leap communications) <kali@leap.se>2021-04-14 16:54:42 +0200
commit67a0eb7111d3f89e4a0cb21e43aefe6d87d37e04 (patch)
treec9b18e0da6e06ac165a485ee957b7850adb12e86 /vendor/golang.org/x/sys/windows/registry/key.go
parent2e8f2a2e8e83fd89f956cdde886d5d9d808132da (diff)
[pkg] go mod vendor to build debian/ubuntu packages
Diffstat (limited to 'vendor/golang.org/x/sys/windows/registry/key.go')
-rw-r--r--vendor/golang.org/x/sys/windows/registry/key.go198
1 files changed, 198 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 0000000..c256483
--- /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
+}