| 1 | /* $Id: npipe.cpp,v 1.12 2003-06-02 16:25:18 sandervl Exp $ */ | 
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| 2 | /* | 
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| 3 | * Win32 Named pipes API | 
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| 4 | * | 
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| 5 | * Copyright 1998 Sander van Leeuwen | 
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| 6 | * Copyright 2000 Przemyslaw Dobrowolski | 
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| 7 | * | 
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| 8 | * Project Odin Software License can be found in LICENSE.TXT | 
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| 9 | */ | 
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| 10 | #include <odin.h> | 
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| 11 | #include <odinwrap.h> | 
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| 12 | #include <os2win.h> | 
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| 13 | #include <stdlib.h> | 
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| 14 | #include <unicode.h> | 
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| 15 | #include <heapstring.h> | 
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| 16 | #include <options.h> | 
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| 17 | #include <HandleManager.h> | 
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| 18 | #include "debugtools.h" | 
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| 19 | #include "oslibdos.h" | 
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| 20 |  | 
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| 21 | #include "hmhandle.h" | 
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| 22 | #include "hmnpipe.h" | 
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| 23 |  | 
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| 24 | #define DBG_LOCALLOG    DBG_npipe | 
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| 25 | #include "dbglocal.h" | 
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| 26 |  | 
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| 27 | ODINDEBUGCHANNEL(KERNEL32-NPIPE) | 
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| 28 |  | 
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| 29 | //****************************************************************************** | 
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| 30 | //****************************************************************************** | 
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| 31 | BOOL WIN32API CreatePipe(PHANDLE phRead, PHANDLE  phWrite, | 
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| 32 | LPSECURITY_ATTRIBUTES lpsa, DWORD cbPipe) | 
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| 33 | { | 
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| 34 | char        szPipeName[64]; | 
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| 35 | HANDLE      hPipeRead, hPipeWrite; | 
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| 36 |  | 
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| 37 | // create a unique pipe name | 
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| 38 | for(int i=0;i<16;i++) | 
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| 39 | { | 
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| 40 | sprintf(szPipeName, "\\\\.\\pipe\\Win32.Pipes.%08x.%08x", GetCurrentProcessId(), GetCurrentTime()); | 
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| 41 | hPipeRead = ::CreateNamedPipeA(szPipeName, PIPE_ACCESS_INBOUND, | 
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| 42 | PIPE_TYPE_BYTE | PIPE_WAIT, 1, cbPipe, cbPipe, | 
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| 43 | NMPWAIT_USE_DEFAULT_WAIT, lpsa); | 
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| 44 | if(hPipeRead != INVALID_HANDLE_VALUE) break; | 
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| 45 |  | 
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| 46 | Sleep(10); | 
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| 47 | } | 
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| 48 |  | 
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| 49 | if (hPipeRead == INVALID_HANDLE_VALUE) { | 
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| 50 | dprintf(("ERROR: Unable to create named pipe with unique name!! (%s)", szPipeName)); | 
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| 51 | return FALSE; | 
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| 52 | } | 
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| 53 |  | 
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| 54 | ULONG mode = PIPE_NOWAIT|PIPE_READMODE_BYTE; | 
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| 55 |  | 
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| 56 | //Set pipe in non-blocking mode | 
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| 57 | SetNamedPipeHandleState(hPipeRead, &mode, NULL, NULL); | 
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| 58 |  | 
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| 59 | //Set pipe in listening mode (so the next CreateFile will succeed) | 
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| 60 | ConnectNamedPipe(hPipeRead, NULL); | 
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| 61 |  | 
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| 62 | //Put pipe back in blocking mode | 
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| 63 | mode = PIPE_WAIT|PIPE_READMODE_BYTE; | 
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| 64 | SetNamedPipeHandleState(hPipeRead, &mode, NULL, NULL); | 
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| 65 |  | 
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| 66 | //Create write pipe | 
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| 67 | hPipeWrite = CreateFileA(szPipeName, GENERIC_WRITE, 0, lpsa, OPEN_EXISTING, 0, 0); | 
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| 68 | if (hPipeWrite == INVALID_HANDLE_VALUE) | 
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| 69 | { | 
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| 70 | dprintf(("ERROR: Unable to create write handle for anonymous pipe!!")); | 
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| 71 | CloseHandle(hPipeRead); | 
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| 72 | return FALSE; | 
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| 73 | } | 
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| 74 |  | 
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| 75 | dprintf(("Created pipe with handles %x and %x", hPipeRead, hPipeWrite)); | 
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| 76 | *phRead  = hPipeRead; | 
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| 77 | *phWrite = hPipeWrite; | 
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| 78 | return TRUE; | 
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| 79 | } | 
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| 80 |  | 
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| 81 | /***************************************************************************** | 
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| 82 | * Name      : CreateNamedPipe | 
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| 83 | * Purpose   : | 
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| 84 | * Parameters: | 
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| 85 | * Variables : | 
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| 86 | * Result    : | 
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| 87 | * Remark    : | 
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| 88 | * Status    : | 
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| 89 | * | 
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| 90 | * Author    : Przemyslaw Dobrowolski | 
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| 91 | *****************************************************************************/ | 
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| 92 | HANDLE WIN32API CreateNamedPipeA(LPCTSTR lpName, | 
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| 93 | DWORD   dwOpenMode, | 
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| 94 | DWORD   dwPipeMode, | 
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| 95 | DWORD   nMaxInstances, | 
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| 96 | DWORD   nOutBufferSize, | 
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| 97 | DWORD   nInBufferSize, | 
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| 98 | DWORD   nDefaultTimeOut, | 
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| 99 | LPSECURITY_ATTRIBUTES lpSecurityAttributes) | 
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| 100 | { | 
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| 101 | PHMHANDLE       pHandle; | 
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| 102 | HANDLE          rc;                                     /* API return code */ | 
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| 103 |  | 
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| 104 | SetLastError(ERROR_SUCCESS); | 
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| 105 |  | 
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| 106 | pHandle = HMHandleGetFreePtr(HMTYPE_PIPE);                         /* get free handle */ | 
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| 107 | if (pHandle == NULL)                            /* oops, no free handles ! */ | 
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| 108 | { | 
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| 109 | SetLastError(ERROR_NOT_ENOUGH_MEMORY);      /* use this as error message */ | 
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| 110 | return INVALID_HANDLE_VALUE; | 
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| 111 | } | 
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| 112 |  | 
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| 113 | /* call the device handler */ | 
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| 114 | rc = pHandle->pDeviceHandler->CreateNamedPipe(&pHandle->hmHandleData, | 
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| 115 | lpName,dwOpenMode, | 
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| 116 | dwPipeMode,nMaxInstances, | 
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| 117 | nOutBufferSize,nInBufferSize, | 
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| 118 | nDefaultTimeOut,lpSecurityAttributes); | 
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| 119 |  | 
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| 120 | if (rc == INVALID_HANDLE_VALUE) | 
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| 121 | { | 
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| 122 | HMHandleFree(pHandle->hmHandleData.hWin32Handle); | 
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| 123 | return INVALID_HANDLE_VALUE;                         /* signal error */ | 
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| 124 | } | 
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| 125 |  | 
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| 126 | dprintf(("Named pipe %x", pHandle->hmHandleData.hWin32Handle)); | 
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| 127 | if(lpSecurityAttributes && lpSecurityAttributes->bInheritHandle) { | 
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| 128 | dprintf(("Set inheritance for child processes")); | 
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| 129 | HMSetHandleInformation(pHandle->hmHandleData.hWin32Handle, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT); | 
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| 130 | } | 
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| 131 |  | 
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| 132 | return pHandle->hmHandleData.hWin32Handle; | 
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| 133 | } | 
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| 134 | /***************************************************************************** | 
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| 135 | * Name      : BOOL WIN32API ConnectNamedPipe | 
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| 136 | * Purpose   : The ConnectNamedPipe function enables a named pipe server process | 
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| 137 | *             to wait for a client process to connect to an instance of a | 
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| 138 | *             named pipe. A client process connects by calling either the | 
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| 139 | *             CreateFile or CallNamedPipe function. | 
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| 140 | * Parameters:  HANDLE hNamedPipe      handle to named pipe to connect | 
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| 141 | *              LPOVERLAPPED lpOverlapped  pointer to overlapped structure | 
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| 142 | * Variables : | 
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| 143 | * Result    : If the function succeeds, the return value is nonzero. | 
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| 144 | *             If the function fails, the return value is zero. | 
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| 145 | *             To get extended error information, call GetLastError. | 
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| 146 | * Remark    : | 
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| 147 | * Status    : NOT FULLY TESTED | 
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| 148 | * | 
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| 149 | * Author    : Przemyslaw Dobrowolski [Sun, 2000/01/02 12:48] | 
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| 150 | *****************************************************************************/ | 
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| 151 |  | 
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| 152 | BOOL WIN32API ConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED lpOverlapped) | 
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| 153 | { | 
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| 154 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 155 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 156 |  | 
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| 157 | SetLastError(ERROR_SUCCESS); | 
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| 158 | /* validate handle */ | 
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| 159 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 160 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 161 | { | 
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| 162 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 163 | } | 
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| 164 |  | 
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| 165 | lpResult = pHMHandle->pDeviceHandler->ConnectNamedPipe(&pHMHandle->hmHandleData, | 
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| 166 | lpOverlapped); | 
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| 167 |  | 
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| 168 | return (lpResult);                                  /* deliver return code */ | 
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| 169 | } | 
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| 170 |  | 
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| 171 | /***************************************************************************** | 
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| 172 | * Name      : BOOL WIN32API DisconnectNamedPipe | 
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| 173 | * Purpose   : The DisconnectNamedPipe function disconnects the server end | 
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| 174 | *             of a named pipe instance from a client process. | 
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| 175 | * Parameters: HANDLE hNamedPipe    handle to named pipe | 
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| 176 | * Variables : | 
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| 177 | * Result    : If the function succeeds, the return value is nonzero. | 
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| 178 | *             If the function fails, the return value is zero | 
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| 179 | * Remark    : | 
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| 180 | * Status    : NOT FULLY TESTED | 
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| 181 | * | 
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| 182 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:34] | 
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| 183 | *****************************************************************************/ | 
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| 184 |  | 
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| 185 | BOOL WIN32API DisconnectNamedPipe(HANDLE hPipe) | 
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| 186 | { | 
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| 187 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 188 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 189 |  | 
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| 190 | SetLastError(ERROR_SUCCESS); | 
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| 191 | /* validate handle */ | 
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| 192 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 193 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 194 | { | 
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| 195 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 196 | } | 
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| 197 |  | 
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| 198 | lpResult = pHMHandle->pDeviceHandler->DisconnectNamedPipe(&pHMHandle->hmHandleData); | 
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| 199 |  | 
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| 200 | return (lpResult);                                  /* deliver return code */ | 
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| 201 | } | 
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| 202 |  | 
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| 203 | /***************************************************************************** | 
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| 204 | * Name      : PeekNamedPipe | 
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| 205 | * Purpose   : | 
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| 206 | * Parameters: | 
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| 207 | * Variables : | 
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| 208 | * Result    : | 
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| 209 | * Remark    : | 
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| 210 | * Status    : | 
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| 211 | * | 
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| 212 | * Author    : Przemyslaw Dobrowolski | 
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| 213 | *****************************************************************************/ | 
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| 214 | BOOL WIN32API PeekNamedPipe(HANDLE hPipe, | 
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| 215 | LPVOID  lpvBuffer, | 
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| 216 | DWORD   cbBuffer, | 
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| 217 | LPDWORD lpcbRead, | 
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| 218 | LPDWORD lpcbAvail, | 
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| 219 | LPDWORD lpcbMessage) | 
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| 220 | { | 
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| 221 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 222 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 223 |  | 
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| 224 | SetLastError(ERROR_SUCCESS); | 
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| 225 | /* validate handle */ | 
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| 226 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 227 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 228 | { | 
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| 229 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 230 | } | 
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| 231 |  | 
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| 232 | lpResult = pHMHandle->pDeviceHandler->PeekNamedPipe(&pHMHandle->hmHandleData, | 
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| 233 | lpvBuffer, | 
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| 234 | cbBuffer, | 
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| 235 | lpcbRead, | 
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| 236 | lpcbAvail, | 
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| 237 | lpcbMessage); | 
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| 238 |  | 
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| 239 | return (lpResult);                                  /* deliver return code */ | 
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| 240 | } | 
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| 241 |  | 
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| 242 | /***************************************************************************** | 
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| 243 | * Name      : BOOL GetNamedPipeHandleStateA | 
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| 244 | * Purpose   : The GetNamedPipeHandleStateA function retrieves information about | 
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| 245 | *             a specified named pipe. The information returned can vary during | 
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| 246 | *             the lifetime of an instance of the named pipe. | 
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| 247 | * Parameters: HANDLE  hNamedPipe           handle of named pipe | 
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| 248 | *             LPDWORD lpState              address of flags indicating pipe state | 
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| 249 | *             LPDWORD lpCurInstances       address of number of current pipe instances | 
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| 250 | *             LPDWORD lpMaxCollectionCount address of max. bytes before remote transmission | 
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| 251 | *             LPDWORD lpCollectDataTimeout address of max. time before remote transmission | 
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| 252 | *             LPTSTR  lpUserName           address of user name of client process | 
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| 253 | *             DWORD   nMaxUserNameSize     size, in characters, of user name buffer | 
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| 254 | * Variables : | 
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| 255 | * Result    : TRUE / FALSE | 
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| 256 | * Remark    : | 
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| 257 | * Status    : UNTESTED STUB | 
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| 258 | * | 
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| 259 | * Author    : Patrick Haller [Mon, 1998/06/15 08:00] | 
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| 260 | *****************************************************************************/ | 
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| 261 |  | 
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| 262 | BOOL WIN32API GetNamedPipeHandleStateA(HANDLE hPipe, | 
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| 263 | LPDWORD lpState, | 
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| 264 | LPDWORD lpCurInstances, | 
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| 265 | LPDWORD lpMaxCollectionCount, | 
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| 266 | LPDWORD lpCollectDataTimeout, | 
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| 267 | LPTSTR  lpUserName, | 
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| 268 | DWORD   nMaxUserNameSize) | 
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| 269 | { | 
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| 270 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 271 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 272 |  | 
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| 273 | SetLastError(ERROR_SUCCESS); | 
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| 274 | /* validate handle */ | 
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| 275 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 276 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 277 | { | 
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| 278 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 279 | } | 
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| 280 |  | 
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| 281 | lpResult = pHMHandle->pDeviceHandler->GetNamedPipeHandleState(&pHMHandle->hmHandleData, | 
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| 282 | lpState, | 
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| 283 | lpCurInstances, | 
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| 284 | lpMaxCollectionCount, | 
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| 285 | lpCollectDataTimeout, | 
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| 286 | lpUserName, | 
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| 287 | nMaxUserNameSize); | 
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| 288 |  | 
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| 289 |  | 
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| 290 | return (lpResult);                                  /* deliver return code */ | 
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| 291 | } | 
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| 292 |  | 
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| 293 | /***************************************************************************** | 
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| 294 | * Name      : BOOL GetNamedPipeInfo | 
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| 295 | * Purpose   : The GetNamedPipeInfo function retrieves information about the specified named pipe. | 
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| 296 | * Parameters: HANDLE  hNamedPipe      handle of named pipe | 
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| 297 | *             LPDWORD lpFlags         address of flags indicating type of pipe | 
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| 298 | *             LPDWORD lpOutBufferSize address of size, in bytes, of pipe's output buffer | 
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| 299 | *             LPDWORD lpInBufferSize  address of size, in bytes, of pipe's input buffer | 
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| 300 | *             LPDWORD lpMaxInstances  address of max. number of pipe instances | 
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| 301 | * Variables : | 
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| 302 | * Result    : TRUE / FALSE | 
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| 303 | * Remark    : | 
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| 304 | * Status    : | 
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| 305 | * | 
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| 306 | * Author    : Przemyslaw Dobrowolski | 
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| 307 | *****************************************************************************/ | 
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| 308 |  | 
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| 309 | BOOL WIN32API GetNamedPipeInfo(HANDLE hPipe, | 
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| 310 | LPDWORD lpFlags, | 
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| 311 | LPDWORD lpOutBufferSize, | 
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| 312 | LPDWORD lpInBufferSize, | 
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| 313 | LPDWORD lpMaxInstances) | 
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| 314 | { | 
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| 315 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 316 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 317 |  | 
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| 318 | SetLastError(ERROR_SUCCESS); | 
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| 319 | /* validate handle */ | 
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| 320 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 321 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 322 | { | 
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| 323 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 324 | } | 
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| 325 |  | 
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| 326 | lpResult = pHMHandle->pDeviceHandler->GetNamedPipeInfo(&pHMHandle->hmHandleData, | 
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| 327 | lpFlags, | 
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| 328 | lpOutBufferSize, | 
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| 329 | lpInBufferSize, | 
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| 330 | lpMaxInstances); | 
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| 331 |  | 
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| 332 | return (lpResult);                                  /* deliver return code */ | 
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| 333 | } | 
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| 334 |  | 
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| 335 | /***************************************************************************** | 
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| 336 | * Name      : BOOL TransactNamedPipe | 
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| 337 | * Purpose   : The TransactNamedPipe function combines into a single network | 
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| 338 | *             operation the functions that write a message to and read a | 
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| 339 | *             message from the specified named pipe. | 
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| 340 | * Parameters: HANDLE       hNamedPipe  handle of named pipe | 
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| 341 | *             LPVOID       lpvWriteBuf address of write buffer | 
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| 342 | *             DWORD        cbWriteBuf  size of the write buffer, in bytes | 
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| 343 | *             LPVOID       lpvReadBuf  address of read buffer | 
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| 344 | *             DWORD        cbReadBuf   size of read buffer, in bytes | 
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| 345 | *             LPDWORD      lpcbRead    address of variable for bytes actually read | 
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| 346 | *             LPOVERLAPPED lpo         address of overlapped structure | 
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| 347 | * Variables : | 
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| 348 | * Result    : TRUE / FALSE | 
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| 349 | * Remark    : | 
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| 350 | * Status    : NOT FULLY TESTED (YET!) | 
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| 351 | * | 
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| 352 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 08:48] | 
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| 353 | *****************************************************************************/ | 
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| 354 | BOOL WIN32API TransactNamedPipe(HANDLE hPipe, | 
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| 355 | LPVOID       lpvWriteBuf, | 
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| 356 | DWORD        cbWriteBuf, | 
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| 357 | LPVOID       lpvReadBuf, | 
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| 358 | DWORD        cbReadBuf, | 
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| 359 | LPDWORD      lpcbRead, | 
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| 360 | LPOVERLAPPED lpo) | 
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| 361 | { | 
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| 362 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 363 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 364 |  | 
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| 365 | SetLastError(ERROR_SUCCESS); | 
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| 366 | /* validate handle */ | 
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| 367 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 368 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 369 | { | 
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| 370 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 371 | } | 
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| 372 |  | 
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| 373 | lpResult = pHMHandle->pDeviceHandler->TransactNamedPipe(&pHMHandle->hmHandleData, | 
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| 374 | lpvWriteBuf, | 
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| 375 | cbWriteBuf, | 
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| 376 | lpvReadBuf, | 
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| 377 | cbReadBuf, | 
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| 378 | lpcbRead, | 
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| 379 | lpo); | 
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| 380 |  | 
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| 381 | return (lpResult);                                  /* deliver return code */ | 
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| 382 | } | 
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| 383 |  | 
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| 384 | /***************************************************************************** | 
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| 385 | * Name      : BOOL SetNamedPipeHandleState | 
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| 386 | * Purpose   : The SetNamedPipeHandleState function sets the read mode and the | 
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| 387 | *             blocking mode of the specified named pipe. If the specified handle | 
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| 388 | *             is to the client end of a named pipe and if the named pipe server | 
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| 389 | *             process is on a remote computer, the function can also be used to | 
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| 390 | *             control local buffering. | 
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| 391 | * Parameters: HANDLE  hNamedPipe     handle of named pipe | 
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| 392 | *             LPDWORD lpdwMode       address of new pipe mode | 
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| 393 | *             LPDWORD lpcbMaxCollect address of max. bytes before remote transmission | 
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| 394 | *             LPDWORD lpdwCollectDataTimeout address of max. time before remote transmission | 
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| 395 | * Variables : | 
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| 396 | * Result    : TRUE / FALSE | 
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| 397 | * Remark    : | 
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| 398 | * Status    : | 
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| 399 | * | 
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| 400 | * Author    : Przemyslaw Dobrowolski | 
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| 401 | *****************************************************************************/ | 
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| 402 |  | 
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| 403 | BOOL WIN32API SetNamedPipeHandleState(HANDLE  hPipe, | 
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| 404 | LPDWORD lpdwMode, | 
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| 405 | LPDWORD lpcbMaxCollect, | 
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| 406 | LPDWORD lpdwCollectDataTimeout) | 
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| 407 | { | 
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| 408 | BOOL      lpResult;                /* result from the device handler's API */ | 
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| 409 | PHMHANDLE pHMHandle;       /* pointer to the handle structure in the table */ | 
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| 410 |  | 
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| 411 | SetLastError(ERROR_SUCCESS); | 
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| 412 | /* validate handle */ | 
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| 413 | pHMHandle = HMHandleQueryPtr(hPipe);              /* get the index */ | 
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| 414 | if (pHMHandle == NULL)                                     /* error ? */ | 
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| 415 | { | 
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| 416 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE) | 
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| 417 | } | 
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| 418 |  | 
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| 419 | lpResult = pHMHandle->pDeviceHandler->SetNamedPipeHandleState(&pHMHandle->hmHandleData, | 
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| 420 | lpdwMode, | 
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| 421 | lpcbMaxCollect, | 
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| 422 | lpdwCollectDataTimeout); | 
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| 423 |  | 
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| 424 | return (lpResult);                                  /* deliver return code */ | 
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| 425 | } | 
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| 426 |  | 
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| 427 |  | 
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| 428 | //****************************************************************************** | 
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| 429 | //****************************************************************************** | 
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| 430 | HANDLE WIN32API CreateNamedPipeW(LPCWSTR lpName, DWORD dwOpenMode, DWORD dwPipeMode, | 
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| 431 | DWORD  nMaxInstances, DWORD  nOutBufferSize, | 
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| 432 | DWORD  nInBufferSize, DWORD  nDefaultTimeOut, | 
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| 433 | LPSECURITY_ATTRIBUTES lpSecurityAttributes) | 
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| 434 | { | 
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| 435 | char *asciiname; | 
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| 436 | HANDLE hPipe; | 
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| 437 |  | 
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| 438 | asciiname  = UnicodeToAsciiString((LPWSTR)lpName); | 
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| 439 |  | 
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| 440 | hPipe=CreateNamedPipeA(asciiname, | 
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| 441 | dwOpenMode, | 
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| 442 | dwPipeMode, | 
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| 443 | nMaxInstances, | 
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| 444 | nOutBufferSize, | 
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| 445 | nInBufferSize, | 
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| 446 | nDefaultTimeOut, | 
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| 447 | lpSecurityAttributes); | 
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| 448 |  | 
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| 449 | FreeAsciiString(asciiname); | 
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| 450 |  | 
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| 451 | return(hPipe); | 
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| 452 | } | 
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| 453 |  | 
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| 454 | /***************************************************************************** | 
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| 455 | * Name      : BOOL WIN32AOI CallNamedPipeA | 
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| 456 | * Purpose   : The CallNamedPipe function connects to a message-type pipe | 
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| 457 | *             (and waits if an instance of the pipe is not available), | 
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| 458 | *             writes to and reads from the pipe, and then closes the pipe. | 
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| 459 | * Parameters:  LPCSTR lpNamedPipeName pointer to pipe name | 
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| 460 | *              LPVOID lpInBuffer      pointer to write buffer | 
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| 461 | *              DWORD nInBufferSize    size, in bytes, of write buffer | 
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| 462 | *              LPVOID lpOutBuffer     pointer to read buffer | 
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| 463 | *              DWORD nOutBufferSize   size, in bytes, of read buffer | 
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| 464 | *              LPDWORD lpBytesRead    pointer to number of bytes read | 
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| 465 | *              DWORD nTimeOut         time-out time, in milliseconds | 
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| 466 | * Variables : | 
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| 467 | * Result    : If the function succeeds, the return value is nonzero. | 
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| 468 | *             If the function fails, the return value is zero. | 
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| 469 | *             To get extended error information, call GetLastError. | 
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| 470 | * Remark    : Calling CallNamedPipe is equivalent to calling the CreateFile | 
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| 471 | *             (or WaitNamedPipe, if CreateFile cannot open the pipe immediately), | 
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| 472 | *             TransactNamedPipe, and CloseHandle functions. CreateFile is called | 
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| 473 | *             with an access flag of GENERIC_READ | GENERIC_WRITE, an inherit | 
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| 474 | *             handle flag of FALSE, and a share mode of zero (indicating no | 
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| 475 | *             sharing of this pipe instance). | 
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| 476 | *             If the message written to the pipe by the server process is | 
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| 477 | *             longer than nOutBufferSize, CallNamedPipe returns FALSE, and | 
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| 478 | *             GetLastError returns ERROR_MORE_DATA. The remainder of the | 
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| 479 | *             message is discarded, because CallNamedPipe closes the handle | 
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| 480 | *             to the pipe before returning. | 
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| 481 | * | 
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| 482 | *             CallNamedPipe fails if the pipe is a byte-type pipe. | 
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| 483 | * Status    : NOT FULLY TESTED | 
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| 484 | * | 
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| 485 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:32] | 
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| 486 | *****************************************************************************/ | 
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| 487 |  | 
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| 488 | BOOL WIN32API CallNamedPipeA(LPCSTR  lpNamedPipeName, | 
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| 489 | LPVOID  lpInBuffer, | 
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| 490 | DWORD   nInBufferSize, | 
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| 491 | LPVOID  lpOutBuffer, | 
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| 492 | DWORD   nOutBufferSize, | 
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| 493 | LPDWORD lpBytesRead, | 
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| 494 | DWORD   nTimeOut) | 
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| 495 | { | 
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| 496 | return(OSLibDosCallNamedPipe(lpNamedPipeName, | 
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| 497 | lpInBuffer, | 
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| 498 | nInBufferSize, | 
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| 499 | lpOutBuffer, | 
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| 500 | nOutBufferSize, | 
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| 501 | lpBytesRead, | 
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| 502 | nTimeOut )); | 
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| 503 | } | 
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| 504 |  | 
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| 505 | /***************************************************************************** | 
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| 506 | * Name      : BOOL WIN32AOI CallNamedPipeW | 
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| 507 | * Purpose   : The CallNamedPipe function connects to a message-type pipe | 
|---|
| 508 | *             (and waits if an instance of the pipe is not available), | 
|---|
| 509 | *             writes to and reads from the pipe, and then closes the pipe. | 
|---|
| 510 | * Parameters:  LPCWSTR lpNamedPipeName pointer to pipe name | 
|---|
| 511 | *              LPVOID lpInBuffer      pointer to write buffer | 
|---|
| 512 | *              DWORD nInBufferSize    size, in bytes, of write buffer | 
|---|
| 513 | *              LPVOID lpOutBuffer     pointer to read buffer | 
|---|
| 514 | *              DWORD nOutBufferSize   size, in bytes, of read buffer | 
|---|
| 515 | *              LPDWORD lpBytesRead    pointer to number of bytes read | 
|---|
| 516 | *              DWORD nTimeOut         time-out time, in milliseconds | 
|---|
| 517 | * Variables : | 
|---|
| 518 | * Result    : If the function succeeds, the return value is nonzero. | 
|---|
| 519 | *             If the function fails, the return value is zero. | 
|---|
| 520 | *             To get extended error information, call GetLastError. | 
|---|
| 521 | * Remark    : Calling CallNamedPipe is equivalent to calling the CreateFile | 
|---|
| 522 | *             (or WaitNamedPipe, if CreateFile cannot open the pipe immediately), | 
|---|
| 523 | *             TransactNamedPipe, and CloseHandle functions. CreateFile is called | 
|---|
| 524 | *             with an access flag of GENERIC_READ | GENERIC_WRITE, an inherit | 
|---|
| 525 | *             handle flag of FALSE, and a share mode of zero (indicating no | 
|---|
| 526 | *             sharing of this pipe instance). | 
|---|
| 527 | *             If the message written to the pipe by the server process is | 
|---|
| 528 | *             longer than nOutBufferSize, CallNamedPipe returns FALSE, and | 
|---|
| 529 | *             GetLastError returns ERROR_MORE_DATA. The remainder of the | 
|---|
| 530 | *             message is discarded, because CallNamedPipe closes the handle | 
|---|
| 531 | *             to the pipe before returning. | 
|---|
| 532 | * | 
|---|
| 533 | *             CallNamedPipe fails if the pipe is a byte-type pipe. | 
|---|
| 534 | * Status    : NOT FULLY TESTED | 
|---|
| 535 | * | 
|---|
| 536 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:33] | 
|---|
| 537 | *****************************************************************************/ | 
|---|
| 538 | BOOL WIN32API CallNamedPipeW(LPCWSTR lpNamedPipeName, | 
|---|
| 539 | LPVOID  lpInBuffer, | 
|---|
| 540 | DWORD   nInBufferSize, | 
|---|
| 541 | LPVOID  lpOutBuffer, | 
|---|
| 542 | DWORD   nOutBufferSize, | 
|---|
| 543 | LPDWORD lpBytesRead, | 
|---|
| 544 | DWORD   nTimeOut) | 
|---|
| 545 | { | 
|---|
| 546 | char *asciiname; | 
|---|
| 547 | BOOL rc; | 
|---|
| 548 |  | 
|---|
| 549 | asciiname  = UnicodeToAsciiString((LPWSTR)lpNamedPipeName); | 
|---|
| 550 |  | 
|---|
| 551 | rc=OSLibDosCallNamedPipe(asciiname, | 
|---|
| 552 | lpInBuffer, | 
|---|
| 553 | nInBufferSize, | 
|---|
| 554 | lpOutBuffer, | 
|---|
| 555 | nOutBufferSize, | 
|---|
| 556 | lpBytesRead, | 
|---|
| 557 | nTimeOut ); | 
|---|
| 558 |  | 
|---|
| 559 | FreeAsciiString(asciiname); | 
|---|
| 560 |  | 
|---|
| 561 | return(rc); | 
|---|
| 562 | } | 
|---|
| 563 |  | 
|---|
| 564 |  | 
|---|
| 565 | /***************************************************************************** | 
|---|
| 566 | * Name      : BOOL GetNamedPipeHandleStateW | 
|---|
| 567 | * Purpose   : The GetNamedPipeHandleStateW function retrieves information about | 
|---|
| 568 | *             a specified named pipe. The information returned can vary during | 
|---|
| 569 | *             the lifetime of an instance of the named pipe. | 
|---|
| 570 | * Parameters: HANDLE  hNamedPipe           handle of named pipe | 
|---|
| 571 | *             LPDWORD lpState              address of flags indicating pipe state | 
|---|
| 572 | *             LPDWORD lpCurInstances       address of number of current pipe instances | 
|---|
| 573 | *             LPDWORD lpMaxCollectionCount address of max. bytes before remote transmission | 
|---|
| 574 | *             LPDWORD lpCollectDataTimeout address of max. time before remote transmission | 
|---|
| 575 | *             LPWSTR  lpUserName           address of user name of client process | 
|---|
| 576 | *             DWORD   nMaxUserNameSize     size, in characters, of user name buffer | 
|---|
| 577 | * Variables : | 
|---|
| 578 | * Result    : TRUE / FALSE | 
|---|
| 579 | * Remark    : | 
|---|
| 580 | * Status    : UNTESTED STUB | 
|---|
| 581 | * | 
|---|
| 582 | * Author    : Patrick Haller [Mon, 1998/06/15 08:00] | 
|---|
| 583 | *****************************************************************************/ | 
|---|
| 584 |  | 
|---|
| 585 | BOOL WIN32API GetNamedPipeHandleStateW(HANDLE  hNamedPipe, | 
|---|
| 586 | LPDWORD lpState, | 
|---|
| 587 | LPDWORD lpCurInstances, | 
|---|
| 588 | LPDWORD lpMaxCollectionCount, | 
|---|
| 589 | LPDWORD lpCollectDataTimeout, | 
|---|
| 590 | LPWSTR  lpUserName, | 
|---|
| 591 | DWORD   nMaxUserNameSize) | 
|---|
| 592 | { | 
|---|
| 593 | char *asciiname; | 
|---|
| 594 | BOOL rc; | 
|---|
| 595 |  | 
|---|
| 596 | asciiname  = UnicodeToAsciiString((LPWSTR)lpUserName); | 
|---|
| 597 |  | 
|---|
| 598 | // Not implemented but waiting to implementation in hmnpipe.cpp | 
|---|
| 599 | rc= GetNamedPipeHandleStateA( hNamedPipe, | 
|---|
| 600 | lpState, | 
|---|
| 601 | lpCurInstances, | 
|---|
| 602 | lpMaxCollectionCount, | 
|---|
| 603 | lpCollectDataTimeout, | 
|---|
| 604 | asciiname, | 
|---|
| 605 | nMaxUserNameSize); | 
|---|
| 606 |  | 
|---|
| 607 |  | 
|---|
| 608 | FreeAsciiString(asciiname); | 
|---|
| 609 |  | 
|---|
| 610 | return (rc); | 
|---|
| 611 | } | 
|---|
| 612 |  | 
|---|
| 613 | /***************************************************************************** | 
|---|
| 614 | * Name      : BOOL WaitNamedPipeA | 
|---|
| 615 | * Purpose   : The WaitNamedPipe function waits until either a time-out interval | 
|---|
| 616 | *             elapses or an instance of the specified named pipe is available | 
|---|
| 617 | *             to be connected to (that is, the pipe's server process has a | 
|---|
| 618 | *             pending ConnectNamedPipe operation on the pipe). | 
|---|
| 619 | * Parameters: LPCTSTR lpszNamedPipeName | 
|---|
| 620 | *             DWORD   dwTimeout | 
|---|
| 621 | * Variables : | 
|---|
| 622 | * Result    : TRUE / FALSE | 
|---|
| 623 | * Remark    : | 
|---|
| 624 | * Status    : UNTESTED (YET) | 
|---|
| 625 | * | 
|---|
| 626 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:52] | 
|---|
| 627 | *****************************************************************************/ | 
|---|
| 628 |  | 
|---|
| 629 | BOOL WIN32API WaitNamedPipeA(LPCSTR lpszNamedPipeName, DWORD dwTimeout) | 
|---|
| 630 | { | 
|---|
| 631 | return(OSLibDosWaitNamedPipe(lpszNamedPipeName, dwTimeout)); | 
|---|
| 632 | } | 
|---|
| 633 |  | 
|---|
| 634 |  | 
|---|
| 635 | /***************************************************************************** | 
|---|
| 636 | * Name      : BOOL WaitNamedPipeW | 
|---|
| 637 | * Purpose   : The WaitNamedPipe function waits until either a time-out interval | 
|---|
| 638 | *             elapses or an instance of the specified named pipe is available | 
|---|
| 639 | *             to be connected to (that is, the pipe's server process has a | 
|---|
| 640 | *             pending ConnectNamedPipe operation on the pipe). | 
|---|
| 641 | * Parameters: LPCWSTR lpszNamedPipeName | 
|---|
| 642 | *             DWORD   dwTimeout | 
|---|
| 643 | * Variables : | 
|---|
| 644 | * Result    : TRUE / FALSE | 
|---|
| 645 | * Remark    : | 
|---|
| 646 | * Status    : UNTESTED (YET) | 
|---|
| 647 | * | 
|---|
| 648 | * Author    : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:44] | 
|---|
| 649 | *****************************************************************************/ | 
|---|
| 650 |  | 
|---|
| 651 | BOOL WIN32API WaitNamedPipeW(LPCWSTR lpszNamedPipeName, DWORD dwTimeout) | 
|---|
| 652 | { | 
|---|
| 653 | char  *asciiname; | 
|---|
| 654 | DWORD rc; | 
|---|
| 655 |  | 
|---|
| 656 | asciiname  = UnicodeToAsciiString((LPWSTR)lpszNamedPipeName); | 
|---|
| 657 |  | 
|---|
| 658 | rc=OSLibDosWaitNamedPipe(asciiname, dwTimeout); | 
|---|
| 659 |  | 
|---|
| 660 | FreeAsciiString(asciiname); | 
|---|
| 661 |  | 
|---|
| 662 | return(rc); | 
|---|
| 663 | } | 
|---|