win32ss/printing/base/winspool/monitors.c

   1 /*
   2  * PROJECT:     ReactOS Spooler API
   3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
   4  * PURPOSE:     Functions related to Print Monitors
   5  * COPYRIGHT:   Copyright 2015-2017 Colin Finck (colin@reactos.org)
   6  */
   7
   8 #include "precomp.h"
   9
  10 static void
  11 _MarshallUpMonitorInfo(PBYTE pMonitorInfo, DWORD Level)
  12 {
  13     PMONITOR_INFO_2W pMonitorInfo2 = (PMONITOR_INFO_2W)pMonitorInfo;        // MONITOR_INFO_1W is a subset of MONITOR_INFO_2W
  14
  15     // Replace relative offset addresses in the output by absolute pointers.
  16     pMonitorInfo2->pName = (PWSTR)((ULONG_PTR)pMonitorInfo2->pName + (ULONG_PTR)pMonitorInfo2);
  17
  18     if (Level == 2)
  19     {
  20         pMonitorInfo2->pDLLName = (PWSTR)((ULONG_PTR)pMonitorInfo2->pDLLName + (ULONG_PTR)pMonitorInfo2);
  21         pMonitorInfo2->pEnvironment = (PWSTR)((ULONG_PTR)pMonitorInfo2->pEnvironment + (ULONG_PTR)pMonitorInfo2);
  22     }
  23 }
  24
  25 BOOL WINAPI
  26 AddMonitorA(PSTR pName, DWORD Level, PBYTE pMonitors)
  27 {
  28     TRACE("AddMonitorA(%s, %lu, %p)\n", pName, Level, pMonitors);
  29     UNIMPLEMENTED;
  30     return FALSE;
  31 }
  32
  33 BOOL WINAPI
  34 AddMonitorW(PWSTR pName, DWORD Level, PBYTE pMonitors)
  35 {
  36     TRACE("AddMonitorW(%S, %lu, %p)\n", pName, Level, pMonitors);
  37     UNIMPLEMENTED;
  38     return FALSE;
  39 }
  40
  41 BOOL WINAPI
  42 DeleteMonitorA(PSTR pName, PSTR pEnvironment, PSTR pMonitorName)
  43 {
  44     TRACE("DeleteMonitorA(%s, %s, %s)\n", pName, pEnvironment, pMonitorName);
  45     UNIMPLEMENTED;
  46     return FALSE;
  47 }
  48
  49 BOOL WINAPI
  50 DeleteMonitorW(PWSTR pName, PWSTR pEnvironment, PWSTR pMonitorName)
  51 {
  52     TRACE("DeleteMonitorW(%S, %S, %S)\n", pName, pEnvironment, pMonitorName);
  53     UNIMPLEMENTED;
  54     return FALSE;
  55 }
  56
  57 BOOL WINAPI
  58 EnumMonitorsA(PSTR pName, DWORD Level, PBYTE pMonitors, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
  59 {
  60     TRACE("EnumMonitorsA(%s, %lu, %p, %lu, %p, %p)\n", pName, Level, pMonitors, cbBuf, pcbNeeded, pcReturned);
  61     UNIMPLEMENTED;
  62     return FALSE;
  63 }
  64
  65 BOOL WINAPI
  66 EnumMonitorsW(PWSTR pName, DWORD Level, PBYTE pMonitors, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
  67 {
  68     DWORD dwErrorCode;
  69     DWORD i;
  70     PBYTE p = pMonitors;
  71
  72     TRACE("EnumMonitorsW(%S, %lu, %p, %lu, %p, %p)\n", pName, Level, pMonitors, cbBuf, pcbNeeded, pcReturned);
  73
  74     // Do the RPC call
  75     RpcTryExcept
  76     {
  77         dwErrorCode = _RpcEnumMonitors(pName, Level, pMonitors, cbBuf, pcbNeeded, pcReturned);
  78     }
  79     RpcExcept(EXCEPTION_EXECUTE_HANDLER)
  80     {
  81         dwErrorCode = RpcExceptionCode();
  82         ERR("_RpcEnumPorts failed with exception code %lu!\n", dwErrorCode);
  83     }
  84     RpcEndExcept;
  85
  86     if (dwErrorCode == ERROR_SUCCESS)
  87     {
  88         // Replace relative offset addresses in the output by absolute pointers.
  89         for (i = 0; i < *pcReturned; i++)
  90         {
  91             _MarshallUpMonitorInfo(p, Level);
  92
  93             if (Level == 1)
  94                 p += sizeof(MONITOR_INFO_1W);
  95             else if (Level == 2)
  96                 p += sizeof(MONITOR_INFO_2W);
  97         }
  98     }
  99
 100     SetLastError(dwErrorCode);
 101     return (dwErrorCode == ERROR_SUCCESS);
 102 }