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wtsapi32: Avoid calling GetUserNameW() twice in WTSQuerySessionInformationW(WTSUserName). 

Signed-off-by: Gijs Vermeulen <gijsvrm@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Gijs Vermeulen 2021-03-21 22:50:45 +01:00 committed by Alexandre Julliard
parent a292001da2
commit 6a822d4708
1 changed files with 15 additions and 23 deletions
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38
dlls/wtsapi32/wtsapi32.c
View File

@ -20,6 +20,7 @@
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "lmcons.h"
#include "wtsapi32.h"
#include "wine/debug.h"
#include "wine/heap.h"
@ -330,41 +331,32 @@ BOOL WINAPI WTSQuerySessionInformationA(HANDLE server, DWORD session_id, WTS_INF
/************************************************************
* WTSQuerySessionInformationW (WTSAPI32.@)
*/
BOOL WINAPI WTSQuerySessionInformationW(
HANDLE hServer,
DWORD SessionId,
WTS_INFO_CLASS WTSInfoClass,
LPWSTR* Buffer,
DWORD* BytesReturned)
BOOL WINAPI WTSQuerySessionInformationW(HANDLE server, DWORD session_id, WTS_INFO_CLASS class, WCHAR **buffer, DWORD *count)
{
/* FIXME: Forward request to winsta.dll::WinStationQueryInformationW */
FIXME("Stub %p 0x%08x %d %p %p\n", hServer, SessionId, WTSInfoClass,
Buffer, BytesReturned);
TRACE("%p 0x%08x %d %p %p\n", server, session_id, class, buffer, count);
if (!Buffer || !BytesReturned)
if (!buffer || !count)
{
SetLastError(ERROR_INVALID_USER_BUFFER);
return FALSE;
}
if (WTSInfoClass == WTSUserName)
if (class == WTSUserName)
{
DWORD size = UNLEN + 1;
WCHAR *username;
DWORD count = 0;
GetUserNameW(NULL, &count);
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) return FALSE;
if (!(username = heap_alloc(count * sizeof(WCHAR)))) return FALSE;
GetUserNameW(username, &count);
*Buffer = username;
*BytesReturned = count * sizeof(WCHAR);
if (!(username = heap_alloc(size * sizeof(WCHAR)))) return FALSE;
GetUserNameW(username, &size);
*buffer = username;
*count = size * sizeof(WCHAR);
return TRUE;
}
else
{
*Buffer = NULL;
*BytesReturned = 0;
}
FIXME("Unimplemented class %d\n", class);
*buffer = NULL;
*count = 0;
return FALSE;
}