From e9682162ac908e9b9d81f3378faf8b38d1baa630 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Sun, 28 Apr 2019 12:27:06 +0200
Subject: updater: add initial skeleton

---
 version/zsyscall_windows.go | 49 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 version/zsyscall_windows.go

(limited to 'version/zsyscall_windows.go')

diff --git a/version/zsyscall_windows.go b/version/zsyscall_windows.go
new file mode 100644
index 00000000..9f11ce70
--- /dev/null
+++ b/version/zsyscall_windows.go
@@ -0,0 +1,49 @@
+// Code generated by 'go generate'; DO NOT EDIT.
+
+package version
+
+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 (
+	modntdll = windows.NewLazySystemDLL("ntdll.dll")
+
+	procRtlGetVersion = modntdll.NewProc("RtlGetVersion")
+)
+
+func rtlGetVersion(versionInfo *osVersionInfo) (nterr uint32) {
+	r0, _, _ := syscall.Syscall(procRtlGetVersion.Addr(), 1, uintptr(unsafe.Pointer(versionInfo)), 0, 0)
+	nterr = uint32(r0)
+	return
+}
-- 
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