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- Check for a valid process data pointer in some functions.

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svn path=/trunk/; revision=4276
This commit is contained in:
Hartmut Birr 2003-03-09 21:41:00 +00:00
parent 2a8c933a65
commit 718da6238e
1 changed files with 24 additions and 3 deletions
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27
reactos/subsys/csrss/api/handle.c
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@ -1,4 +1,4 @@
/* $Id: handle.c,v 1.13 2003/03/05 22:50:24 ekohl Exp $
/* $Id: handle.c,v 1.14 2003/03/09 21:41:00 hbirr Exp $
*
* reactos/subsys/csrss/api/handle.c
*
@ -15,15 +15,23 @@
#include "api.h"
#include <ntdll/rtl.h>
#define NDEBUG
#include <debug.h>
/* FUNCTIONS *****************************************************************/
NTSTATUS STDCALL CsrGetObject( PCSRSS_PROCESS_DATA ProcessData, HANDLE Handle, Object_t **Object )
{
ULONG h = (((ULONG)Handle) >> 2) - 1;
// DbgPrint( "CsrGetObject, Object: %x, %x, %x\n", Object, Handle, ProcessData->HandleTableSize );
DPRINT("CsrGetObject, Object: %x, %x, %x\n", Object, Handle, ProcessData ? ProcessData->HandleTableSize : 0);
if (ProcessData == NULL)
{
return STATUS_INVALID_PARAMETER;
}
if( h >= ProcessData->HandleTableSize )
{
DbgPrint( "CsrGetObject returning invalid handle\n" );
DPRINT("CsrGetObject returning invalid handle\n");
return STATUS_INVALID_HANDLE;
}
*Object = ProcessData->HandleTable[h];
@ -37,6 +45,10 @@ NTSTATUS STDCALL CsrReleaseObject(PCSRSS_PROCESS_DATA ProcessData,
{
Object_t *Object;
ULONG h = (((ULONG)Handle) >> 2) - 1;
if (ProcessData == NULL)
{
return STATUS_INVALID_PARAMETER;
}
if( h >= ProcessData->HandleTableSize || ProcessData->HandleTable[h] == 0 )
return STATUS_INVALID_HANDLE;
/* dec ref count */
@ -59,6 +71,11 @@ NTSTATUS STDCALL CsrInsertObject( PCSRSS_PROCESS_DATA ProcessData, PHANDLE Handl
ULONG i;
PVOID* NewBlock;
if (ProcessData == NULL)
{
return STATUS_INVALID_PARAMETER;
}
for (i = 0; i < ProcessData->HandleTableSize; i++)
{
if (ProcessData->HandleTable[i] == NULL)
@ -93,6 +110,10 @@ NTSTATUS STDCALL CsrVerifyObject( PCSRSS_PROCESS_DATA ProcessData, HANDLE Handle
{
ULONG h = (((ULONG)Handle) >> 2) - 1;
if (ProcessData == NULL)
{
return STATUS_INVALID_PARAMETER;
}
if (h >= ProcessData->HandleTableSize)
{
return STATUS_INVALID_HANDLE;