windows/svc: allow querying service start reason
The QueryServiceDynamicInformation API makes it possible to determine
why a service started. This is declared as an optional function because
the API is Win8+.
Reference:
https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nf-winsvc-queryservicedynamicinformation
Change-Id: I18e9a95b35f8c37d94c9900626c1785f425701dc
Reviewed-on: https://go-review.googlesource.com/c/sys/+/358394
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go
index 044ecb1..91817d6 100644
--- a/windows/zsyscall_windows.go
+++ b/windows/zsyscall_windows.go
@@ -115,6 +115,7 @@
procOpenThreadToken = modadvapi32.NewProc("OpenThreadToken")
procQueryServiceConfig2W = modadvapi32.NewProc("QueryServiceConfig2W")
procQueryServiceConfigW = modadvapi32.NewProc("QueryServiceConfigW")
+ procQueryServiceDynamicInformation = modadvapi32.NewProc("QueryServiceDynamicInformation")
procQueryServiceLockStatusW = modadvapi32.NewProc("QueryServiceLockStatusW")
procQueryServiceStatus = modadvapi32.NewProc("QueryServiceStatus")
procQueryServiceStatusEx = modadvapi32.NewProc("QueryServiceStatusEx")
@@ -976,6 +977,18 @@
return
}
+func QueryServiceDynamicInformation(service Handle, infoLevel uint32, dynamicInfo unsafe.Pointer) (err error) {
+ err = procQueryServiceDynamicInformation.Find()
+ if err != nil {
+ return
+ }
+ r1, _, e1 := syscall.Syscall(procQueryServiceDynamicInformation.Addr(), 3, uintptr(service), uintptr(infoLevel), uintptr(dynamicInfo))
+ if r1 == 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
func QueryServiceLockStatus(mgr Handle, lockStatus *QUERY_SERVICE_LOCK_STATUS, bufSize uint32, bytesNeeded *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procQueryServiceLockStatusW.Addr(), 4, uintptr(mgr), uintptr(unsafe.Pointer(lockStatus)), uintptr(bufSize), uintptr(unsafe.Pointer(bytesNeeded)), 0, 0)
if r1 == 0 {
