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Fixed a bug in NtQueryVirtualMemory()

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svn path=/trunk/; revision=982
This commit is contained in:
Eric Kohl 2000-02-06 15:52:04 +00:00
parent 5f71c29e2c
commit ca7bca8f84
1 changed files with 29 additions and 25 deletions
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54
reactos/ntoskrnl/mm/virtual.c
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@ -323,9 +323,9 @@ NTSTATUS STDCALL NtLockVirtualMemory(HANDLE ProcessHandle,
}
VOID MmChangeAreaProtection(PEPROCESS Process,
VOID MmChangeAreaProtection(PEPROCESS Process,
PVOID BaseAddress,
ULONG Length,
ULONG Length,
ULONG Protect)
{
ULONG i;
@ -393,24 +393,27 @@ NTSTATUS STDCALL NtProtectVirtualMemory(IN HANDLE ProcessHandle,
}
NTSTATUS STDCALL NtQueryVirtualMemory(IN HANDLE ProcessHandle,
IN PVOID Address,
IN CINT VirtualMemoryInformationClass,
OUT PVOID VirtualMemoryInformation,
IN ULONG Length,
OUT PULONG ResultLength)
NTSTATUS
STDCALL
NtQueryVirtualMemory (
IN HANDLE ProcessHandle,
IN PVOID Address,
IN CINT VirtualMemoryInformationClass,
OUT PVOID VirtualMemoryInformation,
IN ULONG Length,
OUT PULONG ResultLength
)
{
NTSTATUS Status;
PEPROCESS Process;
MEMORY_AREA* MemoryArea;
#if 0
DbgPrint("NtReadVirtualMemory(ProcessHandle %x, Address %x, "
"VirtualMemoryInformationClass %d, VirtualMemoryInformation %x, "
"Length %lu ResultLength %x)\n",ProcessHandle,Address,
VirtualMemoryInformationClass,VirtualMemoryInformation,
Length,ResultLength);
#endif
DPRINT("NtQueryVirtualMemory(ProcessHandle %x, Address %x, "
"VirtualMemoryInformationClass %d, VirtualMemoryInformation %x, "
"Length %lu ResultLength %x)\n",ProcessHandle,Address,
VirtualMemoryInformationClass,VirtualMemoryInformation,
Length,ResultLength);
switch(VirtualMemoryInformationClass)
{
case MemoryBasicInformation:
@ -421,11 +424,13 @@ NTSTATUS STDCALL NtQueryVirtualMemory(IN HANDLE ProcessHandle,
if (Length < sizeof(MEMORY_BASIC_INFORMATION))
{
ObDereferenceObject(Process);
return(STATUS_INFO_LENGTH_MISMATCH);
return STATUS_INFO_LENGTH_MISMATCH;
}
*ResultLength = sizeof(MEMORY_BASIC_INFORMATION);
if (ResultLength)
{
*ResultLength = sizeof(MEMORY_BASIC_INFORMATION);
}
Status = ObReferenceObjectByHandle(ProcessHandle,
PROCESS_QUERY_INFORMATION,
@ -436,7 +441,7 @@ NTSTATUS STDCALL NtQueryVirtualMemory(IN HANDLE ProcessHandle,
if (!NT_SUCCESS(Status))
{
// DbdPrint("NtQueryVirtualMemory() = %x\n",Status);
DPRINT("NtQueryVirtualMemory() = %x\n",Status);
return(Status);
}
@ -446,7 +451,7 @@ NTSTATUS STDCALL NtQueryVirtualMemory(IN HANDLE ProcessHandle,
if (MemoryArea == NULL)
{
Info->State = MEM_FREE;
DbgPrint("Virtual memory at %p is free.\n", Address);
DPRINT("Virtual memory at %p is free.\n", Address);
ObDereferenceObject(Process);
return (STATUS_SUCCESS);
}
@ -463,17 +468,16 @@ NTSTATUS STDCALL NtQueryVirtualMemory(IN HANDLE ProcessHandle,
Info->BaseAddress = MemoryArea->BaseAddress;
Info->RegionSize = MemoryArea->Length;
DbgPrint("BaseAddress %p, Length %x\n",
Info->BaseAddress, Info->RegionSize);
DPRINT("BaseAddress %p, RegionSize %x State %x\n",
Info->BaseAddress, Info->RegionSize, Info->State);
ObDereferenceObject(Process);
return (STATUS_SUCCESS);
return STATUS_SUCCESS;
}
break;
}
return(STATUS_INVALID_INFO_CLASS);
return STATUS_INVALID_INFO_CLASS;
}