dll/win32/setupapi/rpc.c

   1 /*
   2  * RPC support routines
   3  *
   4  * Copyright 2005 Eric Kohl
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "setupapi_private.h"
  22
  23 static RPC_BINDING_HANDLE LocalBindingHandle = NULL;
  24 static HSTRING_TABLE LocalStringTable = NULL;
  25
  26
  27 RPC_STATUS
  28 PnpBindRpc(LPCWSTR pszMachine,
  29            RPC_BINDING_HANDLE* BindingHandle)
  30 {
  31     PWSTR pszStringBinding = NULL;
  32     RPC_STATUS Status;
  33
  34     Status = RpcStringBindingComposeW(NULL,
  35                                       L"ncacn_np",
  36                                       (LPWSTR)pszMachine,
  37                                       L"\\pipe\\plugplay",
  38                                       NULL,
  39                                       &pszStringBinding);
  40     if (Status != RPC_S_OK)
  41         return Status;
  42
  43     Status = RpcBindingFromStringBindingW(pszStringBinding,
  44                                           BindingHandle);
  45
  46     RpcStringFreeW(&pszStringBinding);
  47
  48     return Status;
  49 }
  50
  51
  52 RPC_STATUS
  53 PnpUnbindRpc(RPC_BINDING_HANDLE *BindingHandle)
  54 {
  55     if (BindingHandle != NULL)
  56     {
  57         RpcBindingFree(*BindingHandle);
  58         *BindingHandle = NULL;
  59     }
  60
  61     return RPC_S_OK;
  62 }
  63
  64
  65 BOOL
  66 PnpGetLocalHandles(RPC_BINDING_HANDLE *BindingHandle,
  67                    HSTRING_TABLE *StringTable)
  68 {
  69     if (LocalBindingHandle != NULL)
  70     {
  71         if (BindingHandle != NULL)
  72             *BindingHandle = LocalBindingHandle;
  73
  74         if (StringTable != NULL)
  75             *StringTable = LocalStringTable;
  76
  77         return TRUE;
  78     }
  79
  80     LocalStringTable = pSetupStringTableInitialize();
  81     if (LocalStringTable == NULL)
  82         return FALSE;
  83
  84     if (PnpBindRpc(NULL, &LocalBindingHandle) != RPC_S_OK)
  85     {
  86         pSetupStringTableDestroy(LocalStringTable);
  87         return FALSE;
  88     }
  89
  90     pSetupStringTableAddString(LocalStringTable, L"PLT", 1);
  91
  92     if (BindingHandle != NULL)
  93         *BindingHandle = LocalBindingHandle;
  94
  95     if (StringTable != NULL)
  96         *StringTable = LocalStringTable;
  97
  98     return TRUE;
  99 }
 100
 101
 102 RPC_STATUS
 103 PnpUnbindLocalBindingHandle(VOID)
 104 {
 105     pSetupStringTableDestroy(LocalStringTable);
 106     LocalStringTable = NULL;
 107     return PnpUnbindRpc(&LocalBindingHandle);
 108 }
 109
 110
 111 void __RPC_FAR * __RPC_USER
 112 midl_user_allocate(SIZE_T len)
 113 {
 114     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 115 }
 116
 117
 118 void __RPC_USER
 119 midl_user_free(void __RPC_FAR * ptr)
 120 {
 121     HeapFree(GetProcessHeap(), 0, ptr);
 122 }
 123
 124 /* EOF */