windows: add QueryServiceStatusEx function

Fixes golang/go#25485

Change-Id: Ic00df1f86591c00fa88cddcb03c7ced0c6bdb0c1
Reviewed-on: https://go-review.googlesource.com/114215
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>

windows/service.go

@@ -162,3 +162,4 @@ type ENUM_SERVICE_STATUS_PROCESS struct {
 //sys	ChangeServiceConfig2(service Handle, infoLevel uint32, info *byte) (err error) = advapi32.ChangeServiceConfig2W
 //sys	QueryServiceConfig2(service Handle, infoLevel uint32, buff *byte, buffSize uint32, bytesNeeded *uint32) (err error) = advapi32.QueryServiceConfig2W
 //sys	EnumServicesStatusEx(mgr Handle, infoLevel uint32, serviceType uint32, serviceState uint32, services *byte, bufSize uint32, bytesNeeded *uint32, servicesReturned *uint32, resumeHandle *uint32, groupName *uint16) (err error) = advapi32.EnumServicesStatusExW
+//sys   QueryServiceStatusEx(service Handle, infoLevel uint32, buff *byte, buffSize uint32, bytesNeeded *uint32) (err error) = advapi32.QueryServiceStatusEx

windows/zsyscall_windows.go

@@ -65,6 +65,7 @@ var (
 	procChangeServiceConfig2W              = modadvapi32.NewProc("ChangeServiceConfig2W")
 	procQueryServiceConfig2W               = modadvapi32.NewProc("QueryServiceConfig2W")
 	procEnumServicesStatusExW              = modadvapi32.NewProc("EnumServicesStatusExW")
+	procQueryServiceStatusEx               = modadvapi32.NewProc("QueryServiceStatusEx")
 	procGetLastError                       = modkernel32.NewProc("GetLastError")
 	procLoadLibraryW                       = modkernel32.NewProc("LoadLibraryW")
 	procLoadLibraryExW                     = modkernel32.NewProc("LoadLibraryExW")
@@ -472,6 +473,18 @@ func EnumServicesStatusEx(mgr Handle, infoLevel uint32, serviceType uint32, serv
 	return
 }
 
+func QueryServiceStatusEx(service Handle, infoLevel uint32, buff *byte, buffSize uint32, bytesNeeded *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procQueryServiceStatusEx.Addr(), 5, uintptr(service), uintptr(infoLevel), uintptr(unsafe.Pointer(buff)), uintptr(buffSize), uintptr(unsafe.Pointer(bytesNeeded)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
 func GetLastError() (lasterr error) {
 	r0, _, _ := syscall.Syscall(procGetLastError.Addr(), 0, 0, 0, 0)
 	if r0 != 0 {