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NULL terminate string before sending it

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svn path=/trunk/; revision=31466
This commit is contained in:
Hervé Poussineau 2007-12-27 18:53:24 +00:00
parent 8dd1e30e97
commit fe052d8d46
1 changed files with 18 additions and 8 deletions
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26
reactos/ntoskrnl/io/pnpmgr/plugplay.c
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@ -49,26 +49,36 @@ IopQueueTargetDeviceEvent(const GUID *Guid,
PUNICODE_STRING DeviceIds)
{
PPNP_EVENT_ENTRY EventEntry;
UNICODE_STRING Copy;
ULONG TotalSize;
NTSTATUS Status;
ASSERT(DeviceIds);
/* Allocate a big enough buffer */
Copy.Length = 0;
Copy.MaximumLength = DeviceIds->Length + sizeof(UNICODE_NULL);
TotalSize =
FIELD_OFFSET(PLUGPLAY_EVENT_BLOCK, TargetDevice.DeviceIds) +
DeviceIds->MaximumLength;
Copy.MaximumLength;
EventEntry = ExAllocatePool(NonPagedPool,
TotalSize + FIELD_OFFSET(PNP_EVENT_ENTRY, Event));
if (EventEntry == NULL)
if (!EventEntry)
return STATUS_INSUFFICIENT_RESOURCES;
memcpy(&EventEntry->Event.EventGuid,
Guid,
sizeof(GUID));
/* Fill the buffer with the event GUID */
RtlCopyMemory(&EventEntry->Event.EventGuid,
Guid,
sizeof(GUID));
EventEntry->Event.EventCategory = TargetDeviceChangeEvent;
EventEntry->Event.TotalSize = TotalSize;
memcpy(&EventEntry->Event.TargetDevice.DeviceIds,
DeviceIds->Buffer,
DeviceIds->MaximumLength);
/* Fill the device id */
Copy.Buffer = EventEntry->Event.TargetDevice.DeviceIds;
Status = RtlAppendUnicodeStringToString(&Copy, DeviceIds);
if (!NT_SUCCESS(Status))
return Status;
InsertHeadList(&IopPnpEventQueueHead,
&EventEntry->ListEntry);