don't crash if requested process couldn't be found

reactos/subsys/csrss/api

diff -u -r1.33 -r1.34
--- process.c	9 Apr 2004 20:03:15 -0000	1.33
+++ process.c	27 Jun 2004 10:16:59 -0000	1.34
@@ -1,4 +1,4 @@

-/* $Id: process.c,v 1.33 2004/04/09 20:03:15 navaraf Exp $

+/* $Id: process.c,v 1.34 2004/06/27 10:16:59 weiden Exp $

  *
  * reactos/subsys/csrss/api/process.c
  *

@@ -411,6 +411,11 @@

   Reply->Header.DataSize = sizeof(CSRSS_API_REPLY) - LPC_MESSAGE_BASE_SIZE;
 
   ProcessData = CsrGetProcessData(Request->Data.DuplicateHandleRequest.ProcessId);

+  if (ProcessData == NULL)
+    {
+      DPRINT1("CsrGetProcessData() failed for process 0x%x, unable to dublicate handle\n", Request->Data.DuplicateHandleRequest.ProcessId);
+      return STATUS_INVALID_HANDLE;
+    }

   Reply->Status = CsrGetObject(ProcessData, Request->Data.DuplicateHandleRequest.Handle, &Object);
   if (! NT_SUCCESS(Reply->Status))
     {

reactos/subsys/csrss/api

diff -u -r1.34 -r1.35
--- wapi.c	9 Apr 2004 20:03:15 -0000	1.34
+++ wapi.c	27 Jun 2004 10:16:59 -0000	1.35
@@ -1,4 +1,4 @@

-/* $Id: wapi.c,v 1.34 2004/04/09 20:03:15 navaraf Exp $

+/* $Id: wapi.c,v 1.35 2004/06/27 10:16:59 weiden Exp $

  * 
  * reactos/subsys/csrss/api/wapi.c
  *

@@ -135,7 +135,12 @@

       Reply = (PCSRSS_API_REPLY)&LpcReply;
 	
       ProcessData = CsrGetProcessData((ULONG)LpcRequest.Header.ClientId.UniqueProcess);

-

+      if (ProcessData == NULL)
+	{
+          DPRINT1("CSR: Unable to find process data for process 0x%x\n", (ULONG)LpcRequest.Header.ClientId.UniqueProcess);
+          NtClose(ServerPort);
+          continue;
+        }

       CsrApiCallHandler(ProcessData, Request, Reply);
     }
 }

@@ -182,6 +187,12 @@

 	  }
 
 	ProcessData = CsrGetProcessData((ULONG)Request.Header.ClientId.UniqueProcess);

+	if (ProcessData == NULL)
+	  {
+	    DPRINT1("CSR: Unable to find process data for process 0x%x\n", (ULONG)Request.Header.ClientId.UniqueProcess);
+	    NtClose(ServerPort);
+	    continue;
+	  }

 	ProcessData->CsrSectionViewBase = LpcRead.ViewBase;
 	ProcessData->CsrSectionViewSize = LpcRead.ViewSize;