[PATCH] services: Initialize OVERLAPPED Offset and OffsetHigh to 0.

[Jefferson Carpenter]

Submitting the patch from this bug:

https://bugs.winehq.org/show_bug.cgi?id=48735

thanks,
Jefferson
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From 1803fb49f01875bd8895280548935fa3e5a6484b Mon Sep 17 00:00:00 2001
From: Jefferson Carpenter <jeffersoncarpenter2 at gmail.com>
Date: Tue, 10 Mar 2020 09:56:30 +0000
Subject: [PATCH] services: Initialize OVERLAPPED Offset and OffsetHigh to 0.

MSDN specifies the Offset and OffsetHigh members must be zero when
writing to a file that does not support seeking(1).

In this case the file is the control_pipe belonging to a
process_entry, and in general pipes do not support seeking.

(1): https://docs.microsoft.com/en-us/windows/win32/api/minwinbase/ns-minwinbase-overlapped

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48735
Signed-off-by: Jefferson Carpenter <jeffersoncarpenter2 at gmail.com>
---
 programs/services/rpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/programs/services/rpc.c b/programs/services/rpc.c
index a657492a5f..0958ee87c4 100644
--- a/programs/services/rpc.c
+++ b/programs/services/rpc.c
@@ -1133,6 +1133,8 @@ static BOOL process_send_command(struct process_entry *process, const void *data
     DWORD count, ret;
     BOOL r;
 
+    overlapped.u.Offset = 0;
+    overlapped.u.OffsetHigh = 0;
     overlapped.hEvent = process->overlapped_event;
     r = WriteFile(process->control_pipe, data, size, &count, &overlapped);
     if (!r && GetLastError() == ERROR_IO_PENDING)
-- 
2.23.0