tree afc863b111683c295c77b19abca28faf30b96ddf
parent 4abf325e0275e4ef0bdd441dcf497570f1419ab9
author Jason A. Donenfeld <Jason@zx2c4.com> 1639609344 +0100
committer Jason Donenfeld <Jason@zx2c4.com> 1639620612 +0000

windows/svc: use NtQuerySystemInformation in IsWindowsService

This brings the algorithm more exactly in line with what .NET does for
the identically named function. Specifically, instead of using
OpenProcess, which requires rights that restricted services might not
have, we use NtQuerySystemInformation(SYSTEM_PROCESS_INFORMATION) to
find the parent process image name and session ID.

Fixes golang/go#44921.

Change-Id: Ie2ad7521cf4c530037d086e61dbc2413e4e7777c
Reviewed-on: https://go-review.googlesource.com/c/sys/+/372554
Trust: Jason Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason Donenfeld <Jason@zx2c4.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Patrik Nyblom <pnyb@google.com>
Trust: Patrik Nyblom <pnyb@google.com>
Run-TryBot: Patrik Nyblom <pnyb@google.com>