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combase: Start surrogate local server when required. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=20296
Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Dmitry Timoshkov 2022-03-09 10:45:56 +03:00 committed by Alexandre Julliard
parent eaf7261944
commit f9cd4c915f
1 changed files with 48 additions and 1 deletions
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49
dlls/combase/rpc.c
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@ -522,6 +522,52 @@ static HRESULT create_server(REFCLSID rclsid, HANDLE *process)
return S_OK; return S_OK;
} }
static HRESULT create_surrogate_server(REFCLSID rclsid, HANDLE *process)
{
static const WCHAR processidW[] = L" /PROCESSID:";
HKEY key;
HRESULT hr;
WCHAR command[MAX_PATH + ARRAY_SIZE(processidW) + CHARS_IN_GUID];
DWORD size;
STARTUPINFOW sinfo;
PROCESS_INFORMATION pinfo;
LONG ret;
TRACE("Attempting to start surrogate server for %s\n", debugstr_guid(rclsid));
hr = open_appidkey_from_clsid(rclsid, KEY_READ, &key);
if (FAILED(hr))
return hr;
size = (MAX_PATH + 1) * sizeof(WCHAR);
ret = RegQueryValueExW(key, L"DllSurrogate", NULL, NULL, (LPBYTE)command, &size);
RegCloseKey(key);
if (ret || !size || !command[0])
{
TRACE("No value for DllSurrogate key\n");
wcscpy(command, L"dllhost.exe");
}
/* Surrogate EXE servers are started with the /PROCESSID:{GUID} switch. */
wcscat(command, processidW);
StringFromGUID2(rclsid, command + wcslen(command), CHARS_IN_GUID);
memset(&sinfo, 0, sizeof(sinfo));
sinfo.cb = sizeof(sinfo);
TRACE("Activating surrogate local server %s\n", debugstr_w(command));
if (!CreateProcessW(NULL, command, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &sinfo, &pinfo))
{
WARN("failed to run surrogate local server %s\n", debugstr_w(command));
return HRESULT_FROM_WIN32(GetLastError());
}
*process = pinfo.hProcess;
CloseHandle(pinfo.hThread);
return S_OK;
}
HRESULT rpc_get_local_class_object(REFCLSID rclsid, REFIID riid, void **obj) HRESULT rpc_get_local_class_object(REFCLSID rclsid, REFIID riid, void **obj)
{ {
PMInterfacePointer objref = NULL; PMInterfacePointer objref = NULL;
@ -546,7 +592,8 @@ HRESULT rpc_get_local_class_object(REFCLSID rclsid, REFIID riid, void **obj)
if (tries == 1) if (tries == 1)
{ {
if ((hr = create_local_service(rclsid)) && (hr = create_server(rclsid, &process)) ) if ((hr = create_local_service(rclsid)) && (hr = create_server(rclsid, &process)) &&
(hr = create_surrogate_server(rclsid, &process)) )
return hr; return hr;
} }