reactos/win32ss/printing/base/spoolsv/ports.c

   1 /*
   2  * PROJECT:     ReactOS Print Spooler Service
   3  * LICENSE:     GNU GPLv2 or any later version as published by the Free Software Foundation
   4  * PURPOSE:     Functions related to Ports
   5  * COPYRIGHT:   Copyright 2015-2017 Colin Finck <colin@reactos.org>
   6  */
   7
   8 #include "precomp.h"
   9
  10 static void
  11 _MarshallDownPortInfo(PBYTE* ppPortInfo, DWORD Level)
  12 {
  13     // Replace absolute pointer addresses in the output by relative offsets.
  14     if (Level == 1)
  15     {
  16         PPORT_INFO_1W pPortInfo1 = (PPORT_INFO_1W)(*ppPortInfo);
  17
  18         pPortInfo1->pName = (PWSTR)((ULONG_PTR)pPortInfo1->pName - (ULONG_PTR)pPortInfo1);
  19
  20         *ppPortInfo += sizeof(PORT_INFO_1W);
  21     }
  22     else if (Level == 2)
  23     {
  24         PPORT_INFO_2W pPortInfo2 = (PPORT_INFO_2W)(*ppPortInfo);
  25
  26         pPortInfo2->pPortName = (PWSTR)((ULONG_PTR)pPortInfo2->pPortName - (ULONG_PTR)pPortInfo2);
  27         pPortInfo2->pDescription = (PWSTR)((ULONG_PTR)pPortInfo2->pDescription - (ULONG_PTR)pPortInfo2);
  28         pPortInfo2->pMonitorName = (PWSTR)((ULONG_PTR)pPortInfo2->pMonitorName - (ULONG_PTR)pPortInfo2);
  29
  30         *ppPortInfo += sizeof(PORT_INFO_2W);
  31     }
  32     else if (Level == 3)
  33     {
  34         PPORT_INFO_3W pPortInfo3 = (PPORT_INFO_3W)(*ppPortInfo);
  35
  36         pPortInfo3->pszStatus = (PWSTR)((ULONG_PTR)pPortInfo3->pszStatus - (ULONG_PTR)pPortInfo3);
  37
  38         *ppPortInfo += sizeof(PORT_INFO_3W);
  39     }
  40 }
  41
  42 DWORD
  43 _RpcAddPort(WINSPOOL_HANDLE pName, ULONG_PTR hWnd, WCHAR* pMonitorName)
  44 {
  45     UNIMPLEMENTED;
  46     return ERROR_INVALID_FUNCTION;
  47 }
  48
  49 DWORD
  50 _RpcAddPortEx(WINSPOOL_HANDLE pName, WINSPOOL_PORT_CONTAINER* pPortContainer, WINSPOOL_PORT_VAR_CONTAINER* pPortVarContainer, WCHAR* pMonitorName)
  51 {
  52     UNIMPLEMENTED;
  53     return ERROR_INVALID_FUNCTION;
  54 }
  55
  56 DWORD
  57 _RpcConfigurePort(WINSPOOL_HANDLE pName, ULONG_PTR hWnd, WCHAR* pPortName)
  58 {
  59     UNIMPLEMENTED;
  60     return ERROR_INVALID_FUNCTION;
  61 }
  62
  63 DWORD
  64 _RpcDeletePort(WINSPOOL_HANDLE pName, ULONG_PTR hWnd, WCHAR* pPortName)
  65 {
  66     UNIMPLEMENTED;
  67     return ERROR_INVALID_FUNCTION;
  68 }
  69
  70 DWORD
  71 _RpcEnumPorts(WINSPOOL_HANDLE pName, DWORD Level, BYTE* pPort, DWORD cbBuf, DWORD* pcbNeeded, DWORD* pcReturned)
  72 {
  73     DWORD dwErrorCode;
  74     PBYTE pPortAligned;
  75
  76     dwErrorCode = RpcImpersonateClient(NULL);
  77     if (dwErrorCode != ERROR_SUCCESS)
  78     {
  79         ERR("RpcImpersonateClient failed with error %lu!\n", dwErrorCode);
  80         return dwErrorCode;
  81     }
  82
  83     pPortAligned = AlignRpcPtr(pPort, &cbBuf);
  84
  85     if (EnumPortsW(pName, Level, pPortAligned, cbBuf, pcbNeeded, pcReturned))
  86     {
  87         // Replace absolute pointer addresses in the output by relative offsets.
  88         DWORD i;
  89         PBYTE p = pPortAligned;
  90
  91         for (i = 0; i < *pcReturned; i++)
  92             _MarshallDownPortInfo(&p, Level);
  93     }
  94     else
  95     {
  96         dwErrorCode = GetLastError();
  97     }
  98
  99     RpcRevertToSelf();
 100     UndoAlignRpcPtr(pPort, pPortAligned, cbBuf, pcbNeeded);
 101
 102     return dwErrorCode;
 103 }
 104
 105 DWORD
 106 _RpcSetPort(WINSPOOL_HANDLE pName, WCHAR* pPortName, WINSPOOL_PORT_CONTAINER* pPortContainer)
 107 {
 108     UNIMPLEMENTED;
 109     return ERROR_INVALID_FUNCTION;
 110 }