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[core,cache] fixed default pointer and bitmap new

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do not overwrite pointer or bitmap data in New callback
This commit is contained in:
Armin Novak
2023-01-01 20:05:37 +01:00
committed by akallabeth
parent d66b165b8e
commit b0c924a98e
2 changed files with 26 additions and 59 deletions
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60
libfreerdp/cache/pointer.c vendored
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@@ -36,26 +36,28 @@ static BOOL pointer_cache_put(rdpPointerCache* pointer_cache, UINT32 index, rdpP
BOOL colorCache);
static rdpPointer* pointer_cache_get(rdpPointerCache* pointer_cache, UINT32 index);
static void pointer_clear(rdpPointer* pointer)
{
if (pointer)
{
pointer->lengthAndMask = 0;
free(pointer->andMaskData);
pointer->andMaskData = NULL;
pointer->lengthXorMask = 0;
free(pointer->xorMaskData);
pointer->xorMaskData = NULL;
}
}
static void pointer_free(rdpContext* context, rdpPointer* pointer)
{
if (pointer)
{
IFCALL(pointer->Free, context, pointer);
if (pointer->xorMaskData)
{
free(pointer->xorMaskData);
pointer->xorMaskData = NULL;
}
if (pointer->andMaskData)
{
free(pointer->andMaskData);
pointer->andMaskData = NULL;
}
free(pointer);
pointer_clear(pointer);
}
free(pointer);
}
static BOOL update_pointer_position(rdpContext* context,
@@ -104,30 +106,25 @@ static BOOL upate_pointer_copy_andxor(rdpPointer* pointer, const BYTE* andMaskDa
size_t lengthAndMask, const BYTE* xorMaskData,
size_t lengthXorMask)
{
pointer->lengthAndMask = 0;
pointer->lengthXorMask = 0;
WINPR_ASSERT(pointer);
pointer_clear(pointer);
if (lengthAndMask && andMaskData)
{
BYTE* tmp;
pointer->lengthAndMask = lengthAndMask;
tmp = (BYTE*)realloc(pointer->andMaskData, lengthAndMask);
if (!tmp)
pointer->andMaskData = (BYTE*)malloc(lengthAndMask);
if (!pointer->andMaskData)
return FALSE;
pointer->andMaskData = tmp;
CopyMemory(pointer->andMaskData, andMaskData, lengthAndMask);
}
if (lengthXorMask && xorMaskData)
{
BYTE* tmp;
pointer->lengthXorMask = lengthXorMask;
tmp = (BYTE*)realloc(pointer->xorMaskData, lengthXorMask);
if (!tmp)
pointer->xorMaskData = (BYTE*)malloc(lengthXorMask);
if (!pointer->xorMaskData)
return FALSE;
pointer->xorMaskData = tmp;
CopyMemory(pointer->xorMaskData, xorMaskData, lengthXorMask);
}
@@ -167,10 +164,8 @@ static BOOL update_pointer_color(rdpContext* context, const POINTER_COLOR_UPDATE
if (!pointer_cache_put(cache->pointer, pointer_color->cacheIndex, pointer, TRUE))
goto out_fail;
if (!IFCALLRESULT(TRUE, pointer->Set, context, pointer))
goto out_fail;
return IFCALLRESULT(TRUE, pointer->Set, context, pointer);
return TRUE;
out_fail:
pointer_free(context, pointer);
return FALSE;
@@ -207,10 +202,8 @@ static BOOL update_pointer_large(rdpContext* context, const POINTER_LARGE_UPDATE
if (!pointer_cache_put(cache->pointer, pointer_large->cacheIndex, pointer, FALSE))
goto out_fail;
if (!IFCALLRESULT(TRUE, pointer->Set, context, pointer))
goto out_fail;
return IFCALLRESULT(TRUE, pointer->Set, context, pointer);
return TRUE;
out_fail:
pointer_free(context, pointer);
return FALSE;
@@ -246,9 +239,8 @@ static BOOL update_pointer_new(rdpContext* context, const POINTER_NEW_UPDATE* po
if (!pointer_cache_put(cache->pointer, pointer_new->colorPtrAttr.cacheIndex, pointer, FALSE))
goto out_fail;
if (!IFCALLRESULT(TRUE, pointer->Set, context, pointer))
goto out_fail;
return TRUE;
return IFCALLRESULT(TRUE, pointer->Set, context, pointer);
out_fail:
pointer_free(context, pointer);
return FALSE;