1 files changed, 38 insertions, 0 deletions

diff --git a/vendor/github.com/rs/xid/hostid_windows.go b/vendor/github.com/rs/xid/hostid_windows.go
new file mode 100644
index 0000000..ec2593e
--- /dev/null
+++ b/vendor/github.com/rs/xid/hostid_windows.go
@@ -0,0 +1,38 @@
+// +build windows
+
+package xid
+
+import (
+        "fmt"
+        "syscall"
+        "unsafe"
+)
+
+func readPlatformMachineID() (string, error) {
+        // source: https://github.com/shirou/gopsutil/blob/master/host/host_syscall.go
+        var h syscall.Handle
+        err := syscall.RegOpenKeyEx(syscall.HKEY_LOCAL_MACHINE, syscall.StringToUTF16Ptr(`SOFTWARE\Microsoft\Cryptography`), 0, syscall.KEY_READ|syscall.KEY_WOW64_64KEY, &h)
+        if err != nil {
+                return "", err
+        }
+        defer syscall.RegCloseKey(h)
+
+        const syscallRegBufLen = 74 // len(`{`) + len(`abcdefgh-1234-456789012-123345456671` * 2) + len(`}`) // 2 == bytes/UTF16
+        const uuidLen = 36
+
+        var regBuf [syscallRegBufLen]uint16
+        bufLen := uint32(syscallRegBufLen)
+        var valType uint32
+        err = syscall.RegQueryValueEx(h, syscall.StringToUTF16Ptr(`MachineGuid`), nil, &valType, (*byte)(unsafe.Pointer(&regBuf[0])), &bufLen)
+        if err != nil {
+                return "", err
+        }
+
+        hostID := syscall.UTF16ToString(regBuf[:])
+        hostIDLen := len(hostID)
+        if hostIDLen != uuidLen {
+                return "", fmt.Errorf("HostID incorrect: %q\n", hostID)
+        }
+
+        return hostID, nil
+}