| 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 | {
|
|---|
| 408 | BOOL lpResult; /* result from the device handler's API */
|
|---|
| 409 | PHMHANDLE pHMHandle; /* pointer to the handle structure in the table */
|
|---|
| 410 |
|
|---|
| 411 | SetLastError(ERROR_SUCCESS);
|
|---|
| 412 | /* validate handle */
|
|---|
| 413 | pHMHandle = HMHandleQueryPtr(hPipe); /* get the index */
|
|---|
| 414 | if (pHMHandle == NULL) /* error ? */
|
|---|
| 415 | {
|
|---|
| 416 | return FALSE; //last error set by HMHandleQueryPtr (ERROR_INVALID_HANDLE)
|
|---|
| 417 | }
|
|---|
| 418 |
|
|---|
| 419 | lpResult = pHMHandle->pDeviceHandler->SetNamedPipeHandleState(&pHMHandle->hmHandleData,
|
|---|
| 420 | lpdwMode,
|
|---|
| 421 | lpcbMaxCollect,
|
|---|
| 422 | lpdwCollectDataTimeout);
|
|---|
| 423 |
|
|---|
| 424 | return (lpResult); /* deliver return code */
|
|---|
| 425 | }
|
|---|
| 426 |
|
|---|
| 427 |
|
|---|
| 428 | //******************************************************************************
|
|---|
| 429 | //******************************************************************************
|
|---|
| 430 | HANDLE WIN32API CreateNamedPipeW(LPCWSTR lpName, DWORD dwOpenMode, DWORD dwPipeMode,
|
|---|
| 431 | DWORD nMaxInstances, DWORD nOutBufferSize,
|
|---|
| 432 | DWORD nInBufferSize, DWORD nDefaultTimeOut,
|
|---|
| 433 | LPSECURITY_ATTRIBUTES lpSecurityAttributes)
|
|---|
| 434 | {
|
|---|
| 435 | char *asciiname;
|
|---|
| 436 | HANDLE hPipe;
|
|---|
| 437 |
|
|---|
| 438 | asciiname = UnicodeToAsciiString((LPWSTR)lpName);
|
|---|
| 439 |
|
|---|
| 440 | hPipe=CreateNamedPipeA(asciiname,
|
|---|
| 441 | dwOpenMode,
|
|---|
| 442 | dwPipeMode,
|
|---|
| 443 | nMaxInstances,
|
|---|
| 444 | nOutBufferSize,
|
|---|
| 445 | nInBufferSize,
|
|---|
| 446 | nDefaultTimeOut,
|
|---|
| 447 | lpSecurityAttributes);
|
|---|
| 448 |
|
|---|
| 449 | FreeAsciiString(asciiname);
|
|---|
| 450 |
|
|---|
| 451 | return(hPipe);
|
|---|
| 452 | }
|
|---|
| 453 |
|
|---|
| 454 | /*****************************************************************************
|
|---|
| 455 | * Name : BOOL WIN32AOI CallNamedPipeA
|
|---|
| 456 | * Purpose : The CallNamedPipe function connects to a message-type pipe
|
|---|
| 457 | * (and waits if an instance of the pipe is not available),
|
|---|
| 458 | * writes to and reads from the pipe, and then closes the pipe.
|
|---|
| 459 | * Parameters: LPCSTR lpNamedPipeName pointer to pipe name
|
|---|
| 460 | * LPVOID lpInBuffer pointer to write buffer
|
|---|
| 461 | * DWORD nInBufferSize size, in bytes, of write buffer
|
|---|
| 462 | * LPVOID lpOutBuffer pointer to read buffer
|
|---|
| 463 | * DWORD nOutBufferSize size, in bytes, of read buffer
|
|---|
| 464 | * LPDWORD lpBytesRead pointer to number of bytes read
|
|---|
| 465 | * DWORD nTimeOut time-out time, in milliseconds
|
|---|
| 466 | * Variables :
|
|---|
| 467 | * Result : If the function succeeds, the return value is nonzero.
|
|---|
| 468 | * If the function fails, the return value is zero.
|
|---|
| 469 | * To get extended error information, call GetLastError.
|
|---|
| 470 | * Remark : Calling CallNamedPipe is equivalent to calling the CreateFile
|
|---|
| 471 | * (or WaitNamedPipe, if CreateFile cannot open the pipe immediately),
|
|---|
| 472 | * TransactNamedPipe, and CloseHandle functions. CreateFile is called
|
|---|
| 473 | * with an access flag of GENERIC_READ | GENERIC_WRITE, an inherit
|
|---|
| 474 | * handle flag of FALSE, and a share mode of zero (indicating no
|
|---|
| 475 | * sharing of this pipe instance).
|
|---|
| 476 | * If the message written to the pipe by the server process is
|
|---|
| 477 | * longer than nOutBufferSize, CallNamedPipe returns FALSE, and
|
|---|
| 478 | * GetLastError returns ERROR_MORE_DATA. The remainder of the
|
|---|
| 479 | * message is discarded, because CallNamedPipe closes the handle
|
|---|
| 480 | * to the pipe before returning.
|
|---|
| 481 | *
|
|---|
| 482 | * CallNamedPipe fails if the pipe is a byte-type pipe.
|
|---|
| 483 | * Status : NOT FULLY TESTED
|
|---|
| 484 | *
|
|---|
| 485 | * Author : Przemyslaw Dobrowolski [Mon, 2000/01/03 13:32]
|
|---|
| 486 | *****************************************************************************/
|
|---|
| 487 |
|
|---|
| 488 | BOOL WIN32API CallNamedPipeA(LPCSTR lpNamedPipeName,
|
|---|
| 489 | LPVOID lpInBuffer,
|
|---|
| 490 | DWORD nInBufferSize,
|
|---|
| 491 | LPVOID lpOutBuffer,
|
|---|
| 492 | DWORD nOutBufferSize,
|
|---|
| 493 | LPDWORD lpBytesRead,
|
|---|
| 494 | DWORD nTimeOut)
|
|---|
| 495 | {
|
|---|
| 496 | return(OSLibDosCallNamedPipe(lpNamedPipeName,
|
|---|
| 497 | lpInBuffer,
|
|---|
| 498 | nInBufferSize,
|
|---|
| 499 | lpOutBuffer,
|
|---|
| 500 | nOutBufferSize,
|
|---|
| 501 | lpBytesRead,
|
|---|
| 502 | nTimeOut ));
|
|---|
| 503 | }
|
|---|
| 504 |
|
|---|
| 505 | /*****************************************************************************
|
|---|
| 506 | * Name : BOOL WIN32AOI CallNamedPipeW
|
|---|
| 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 | }
|
|---|