| 1 | /* $Id: RTHandleGetStandard-win.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - RTHandleGetStandard, Windows.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2010-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include "internal/iprt.h"
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| 32 | #include <iprt/handle.h>
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| 33 |
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| 34 | #include <iprt/file.h>
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| 35 | #include <iprt/pipe.h>
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| 36 | #include <iprt/assert.h>
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| 37 | #include <iprt/errcore.h>
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| 38 | #include <iprt/log.h>
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| 39 |
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| 40 | #include <iprt/win/windows.h>
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| 41 |
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| 42 | #include "internal/socket.h" /* (Needs Windows.h.) */
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| 43 |
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| 44 |
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| 45 | RTDECL(int) RTHandleGetStandard(RTHANDLESTD enmStdHandle, PRTHANDLE ph)
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| 46 | {
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| 47 | /*
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| 48 | * Validate and convert input.
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| 49 | */
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| 50 | AssertPtrReturn(ph, VERR_INVALID_POINTER);
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| 51 | DWORD dwStdHandle;
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| 52 | switch (enmStdHandle)
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| 53 | {
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| 54 | case RTHANDLESTD_INPUT: dwStdHandle = STD_INPUT_HANDLE; break;
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| 55 | case RTHANDLESTD_OUTPUT: dwStdHandle = STD_OUTPUT_HANDLE; break;
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| 56 | case RTHANDLESTD_ERROR: dwStdHandle = STD_ERROR_HANDLE; break;
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| 57 | default:
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| 58 | AssertFailedReturn(VERR_INVALID_PARAMETER);
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| 59 | }
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| 60 |
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| 61 | /*
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| 62 | * Is the requested descriptor valid and which IPRT handle type does it
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| 63 | * best map on to?
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| 64 | */
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| 65 | HANDLE hNative = GetStdHandle(dwStdHandle);
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| 66 | if (hNative == INVALID_HANDLE_VALUE)
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| 67 | return RTErrConvertFromWin32(GetLastError());
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| 68 |
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| 69 | DWORD dwInfo;
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| 70 | if (!GetHandleInformation(hNative, &dwInfo))
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| 71 | return RTErrConvertFromWin32(GetLastError());
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| 72 | bool const fInherit = RT_BOOL(dwInfo & HANDLE_FLAG_INHERIT);
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| 73 |
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| 74 | RTHANDLE h;
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| 75 | DWORD dwType = GetFileType(hNative);
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| 76 | switch (dwType & ~FILE_TYPE_REMOTE)
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| 77 | {
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| 78 | default:
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| 79 | case FILE_TYPE_UNKNOWN:
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| 80 | case FILE_TYPE_CHAR:
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| 81 | case FILE_TYPE_DISK:
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| 82 | h.enmType = RTHANDLETYPE_FILE;
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| 83 | break;
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| 84 |
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| 85 | case FILE_TYPE_PIPE:
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| 86 | {
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| 87 | DWORD cMaxInstances;
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| 88 | DWORD fInfo;
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| 89 | if (!GetNamedPipeInfo(hNative, &fInfo, NULL, NULL, &cMaxInstances))
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| 90 | h.enmType = RTHANDLETYPE_SOCKET;
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| 91 | else
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| 92 | h.enmType = RTHANDLETYPE_PIPE;
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| 93 | break;
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| 94 | }
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| 95 | }
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| 96 |
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| 97 | /*
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| 98 | * Create the IPRT handle.
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| 99 | */
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| 100 | int rc;
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| 101 | switch (h.enmType)
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| 102 | {
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| 103 | case RTHANDLETYPE_FILE:
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| 104 | rc = RTFileFromNative(&h.u.hFile, (RTHCUINTPTR)hNative);
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| 105 | break;
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| 106 |
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| 107 | case RTHANDLETYPE_PIPE:
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| 108 | rc = RTPipeFromNative(&h.u.hPipe, (RTHCUINTPTR)hNative,
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| 109 | (enmStdHandle == RTHANDLESTD_INPUT ? RTPIPE_N_READ : RTPIPE_N_WRITE)
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| 110 | | (fInherit ? RTPIPE_N_INHERIT : 0));
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| 111 | break;
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| 112 |
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| 113 | case RTHANDLETYPE_SOCKET:
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| 114 | rc = rtSocketCreateForNative(&h.u.hSocket, (RTHCUINTPTR)hNative);
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| 115 | break;
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| 116 |
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| 117 | default: /* shut up gcc */
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| 118 | return VERR_INTERNAL_ERROR;
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| 119 | }
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| 120 |
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| 121 | if (RT_SUCCESS(rc))
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| 122 | *ph = h;
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| 123 |
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| 124 | return rc;
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| 125 | }
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| 126 |
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