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[USER32]

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- In MsgiUnicodeToAnsiMessage, use a single contiguous buffer for CREATESTRUCTA and its strings. This allows applications to modify the structure without ill effects
- Don't return the address of a stack structure in MsgiAnsiToUnicodeMessage
CORE-8777 #resolve

svn path=/trunk/; revision=66449
This commit is contained in:
Thomas Faber 2015-02-25 12:24:38 +00:00
parent ee88b1c9f3
commit 6160cfa603
1 changed files with 36 additions and 24 deletions
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48
reactos/win32ss/user/user32/windows/message.c
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@ -578,10 +578,10 @@ MsgiAnsiToUnicodeMessage(HWND hwnd, LPMSG UnicodeMsg, LPMSG AnsiMsg)
case WM_NCCREATE: case WM_NCCREATE:
case WM_CREATE: case WM_CREATE:
{ {
MDICREATESTRUCTW mdi_cs;
struct s struct s
{ {
CREATESTRUCTW cs; /* new structure */ CREATESTRUCTW cs; /* new structure */
MDICREATESTRUCTW mdi_cs; /* MDI info */
LPCWSTR lpszName; /* allocated Name */ LPCWSTR lpszName; /* allocated Name */
LPCWSTR lpszClass; /* allocated Class */ LPCWSTR lpszClass; /* allocated Class */
}; };
@ -605,10 +605,10 @@ MsgiAnsiToUnicodeMessage(HWND hwnd, LPMSG UnicodeMsg, LPMSG AnsiMsg)
if (GetWindowLongW(hwnd, GWL_EXSTYLE) & WS_EX_MDICHILD) if (GetWindowLongW(hwnd, GWL_EXSTYLE) & WS_EX_MDICHILD)
{ {
mdi_cs = *(MDICREATESTRUCTW *)xs->cs.lpCreateParams; xs->mdi_cs = *(MDICREATESTRUCTW *)xs->cs.lpCreateParams;
mdi_cs.szTitle = xs->cs.lpszName; xs->mdi_cs.szTitle = xs->cs.lpszName;
mdi_cs.szClass = xs->cs.lpszClass; xs->mdi_cs.szClass = xs->cs.lpszClass;
xs->cs.lpCreateParams = &mdi_cs; xs->cs.lpCreateParams = &xs->mdi_cs;
} }
UnicodeMsg->lParam = (LPARAM)xs; UnicodeMsg->lParam = (LPARAM)xs;
@ -738,6 +738,7 @@ MsgiAnsiToUnicodeCleanup(LPMSG UnicodeMsg, LPMSG AnsiMsg)
struct s struct s
{ {
CREATESTRUCTW cs; /* new structure */ CREATESTRUCTW cs; /* new structure */
MDICREATESTRUCTW mdi_cs; /* MDI info */
LPWSTR lpszName; /* allocated Name */ LPWSTR lpszName; /* allocated Name */
LPWSTR lpszClass; /* allocated Class */ LPWSTR lpszClass; /* allocated Class */
}; };
@ -847,10 +848,28 @@ MsgiUnicodeToAnsiMessage(HWND hwnd, LPMSG AnsiMsg, LPMSG UnicodeMsg)
MDICREATESTRUCTA *pmdi_cs; MDICREATESTRUCTA *pmdi_cs;
CREATESTRUCTA* CsA; CREATESTRUCTA* CsA;
CREATESTRUCTW* CsW; CREATESTRUCTW* CsW;
ULONG NameSize, ClassSize;
NTSTATUS Status; NTSTATUS Status;
CsW = (CREATESTRUCTW*)(UnicodeMsg->lParam); CsW = (CREATESTRUCTW*)(UnicodeMsg->lParam);
CsA = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(CREATESTRUCTA) + sizeof(MDICREATESTRUCTA)); RtlInitUnicodeString(&UnicodeString, CsW->lpszName);
NameSize = RtlUnicodeStringToAnsiSize(&UnicodeString);
if (NameSize == 0)
{
return FALSE;
}
ClassSize = 0;
if (!IS_ATOM(CsW->lpszClass))
{
RtlInitUnicodeString(&UnicodeString, CsW->lpszClass);
ClassSize = RtlUnicodeStringToAnsiSize(&UnicodeString);
if (ClassSize == 0)
{
return FALSE;
}
}
CsA = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(CREATESTRUCTA) + sizeof(MDICREATESTRUCTA) + NameSize + ClassSize);
if (NULL == CsA) if (NULL == CsA)
{ {
return FALSE; return FALSE;
@ -861,21 +880,21 @@ MsgiUnicodeToAnsiMessage(HWND hwnd, LPMSG AnsiMsg, LPMSG UnicodeMsg)
pmdi_cs = (MDICREATESTRUCTA*)(CsA + 1); pmdi_cs = (MDICREATESTRUCTA*)(CsA + 1);
RtlInitUnicodeString(&UnicodeString, CsW->lpszName); RtlInitUnicodeString(&UnicodeString, CsW->lpszName);
Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, TRUE); RtlInitEmptyAnsiString(&AnsiString, (PCHAR)(pmdi_cs + 1), NameSize);
Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, FALSE);
if (! NT_SUCCESS(Status)) if (! NT_SUCCESS(Status))
{ {
RtlFreeHeap(GetProcessHeap(), 0, CsA); RtlFreeHeap(GetProcessHeap(), 0, CsA);
return FALSE; return FALSE;
} }
CsA->lpszName = AnsiString.Buffer; CsA->lpszName = AnsiString.Buffer;
if (HIWORD((ULONG_PTR)CsW->lpszClass) != 0) if (!IS_ATOM(CsW->lpszClass))
{ {
RtlInitUnicodeString(&UnicodeString, CsW->lpszClass); RtlInitUnicodeString(&UnicodeString, CsW->lpszClass);
Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, TRUE); RtlInitEmptyAnsiString(&AnsiString, (PCHAR)(pmdi_cs + 1) + NameSize, ClassSize);
Status = RtlUnicodeStringToAnsiString(&AnsiString, &UnicodeString, FALSE);
if (! NT_SUCCESS(Status)) if (! NT_SUCCESS(Status))
{ {
RtlInitAnsiString(&AnsiString, CsA->lpszName);
RtlFreeAnsiString(&AnsiString);
RtlFreeHeap(GetProcessHeap(), 0, CsA); RtlFreeHeap(GetProcessHeap(), 0, CsA);
return FALSE; return FALSE;
} }
@ -1118,13 +1137,6 @@ MsgiUnicodeToAnsiCleanup(LPMSG AnsiMsg, LPMSG UnicodeMsg)
CREATESTRUCTA* Cs; CREATESTRUCTA* Cs;
Cs = (CREATESTRUCTA*) AnsiMsg->lParam; Cs = (CREATESTRUCTA*) AnsiMsg->lParam;
RtlInitAnsiString(&AnsiString, Cs->lpszName);
RtlFreeAnsiString(&AnsiString);
if (HIWORD((ULONG_PTR)Cs->lpszClass) != 0)
{
RtlInitAnsiString(&AnsiString, Cs->lpszClass);
RtlFreeAnsiString(&AnsiString);
}
RtlFreeHeap(GetProcessHeap(), 0, Cs); RtlFreeHeap(GetProcessHeap(), 0, Cs);
break; break;
} }