746 lines
16 KiB
C
746 lines
16 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* File Functions
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*
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* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <winpr/crt.h>
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#include <winpr/path.h>
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#include <winpr/handle.h>
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#include <winpr/platform.h>
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#include <winpr/file.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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/**
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* api-ms-win-core-file-l1-2-0.dll:
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*
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* CreateFileA
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* CreateFileW
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* CreateFile2
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* DeleteFileA
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* DeleteFileW
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* CreateDirectoryA
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* CreateDirectoryW
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* RemoveDirectoryA
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* RemoveDirectoryW
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* CompareFileTime
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* DefineDosDeviceW
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* DeleteVolumeMountPointW
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* FileTimeToLocalFileTime
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* LocalFileTimeToFileTime
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* FindClose
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* FindCloseChangeNotification
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* FindFirstChangeNotificationA
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* FindFirstChangeNotificationW
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* FindFirstFileA
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* FindFirstFileExA
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* FindFirstFileExW
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* FindFirstFileW
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* FindFirstVolumeW
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* FindNextChangeNotification
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* FindNextFileA
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* FindNextFileW
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* FindNextVolumeW
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* FindVolumeClose
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* GetDiskFreeSpaceA
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* GetDiskFreeSpaceExA
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* GetDiskFreeSpaceExW
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* GetDiskFreeSpaceW
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* GetDriveTypeA
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* GetDriveTypeW
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* GetFileAttributesA
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* GetFileAttributesExA
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* GetFileAttributesExW
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* GetFileAttributesW
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* GetFileInformationByHandle
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* GetFileSize
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* GetFileSizeEx
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* GetFileTime
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* GetFileType
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* GetFinalPathNameByHandleA
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* GetFinalPathNameByHandleW
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* GetFullPathNameA
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* GetFullPathNameW
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* GetLogicalDrives
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* GetLogicalDriveStringsW
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* GetLongPathNameA
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* GetLongPathNameW
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* GetShortPathNameW
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* GetTempFileNameW
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* GetTempPathW
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* GetVolumeInformationByHandleW
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* GetVolumeInformationW
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* GetVolumeNameForVolumeMountPointW
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* GetVolumePathNamesForVolumeNameW
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* GetVolumePathNameW
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* QueryDosDeviceW
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* SetFileAttributesA
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* SetFileAttributesW
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* SetFileTime
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* SetFileValidData
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* SetFileInformationByHandle
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* ReadFile
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* ReadFileEx
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* ReadFileScatter
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* WriteFile
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* WriteFileEx
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* WriteFileGather
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* FlushFileBuffers
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* SetEndOfFile
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* SetFilePointer
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* SetFilePointerEx
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* LockFile
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* LockFileEx
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* UnlockFile
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* UnlockFileEx
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*/
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/**
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* File System Behavior in the Microsoft Windows Environment:
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* http://download.microsoft.com/download/4/3/8/43889780-8d45-4b2e-9d3a-c696a890309f/File%20System%20Behavior%20Overview.pdf
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*/
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/**
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* Asynchronous I/O - The GNU C Library:
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* http://www.gnu.org/software/libc/manual/html_node/Asynchronous-I_002fO.html
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*/
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/**
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* aio.h - asynchronous input and output:
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* http://pubs.opengroup.org/onlinepubs/009695399/basedefs/aio.h.html
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*/
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/**
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* Asynchronous I/O User Guide:
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* http://code.google.com/p/kernel/wiki/AIOUserGuide
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*/
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#ifndef _WIN32
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <time.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <sys/un.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#ifdef HAVE_AIO_H
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#undef HAVE_AIO_H /* disable for now, incomplete */
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#endif
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#ifdef HAVE_AIO_H
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#include <aio.h>
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#endif
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#ifdef ANDROID
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#include <sys/vfs.h>
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#else
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#include <sys/statvfs.h>
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#endif
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#include "../handle/handle.h"
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#include "../pipe/pipe.h"
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HANDLE CreateFileA(LPCSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
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DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
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{
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char* name;
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int status;
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HANDLE hNamedPipe;
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unsigned long flags;
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struct sockaddr_un s;
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WINPR_NAMED_PIPE* pNamedPipe;
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if (!lpFileName)
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return INVALID_HANDLE_VALUE;
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name = GetNamedPipeNameWithoutPrefixA(lpFileName);
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if (!name)
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return INVALID_HANDLE_VALUE;
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free(name);
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pNamedPipe = (WINPR_NAMED_PIPE*) malloc(sizeof(WINPR_NAMED_PIPE));
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hNamedPipe = (HANDLE) pNamedPipe;
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WINPR_HANDLE_SET_TYPE(pNamedPipe, HANDLE_TYPE_NAMED_PIPE);
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pNamedPipe->name = _strdup(lpFileName);
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pNamedPipe->dwOpenMode = 0;
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pNamedPipe->dwPipeMode = 0;
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pNamedPipe->nMaxInstances = 0;
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pNamedPipe->nOutBufferSize = 0;
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pNamedPipe->nInBufferSize = 0;
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pNamedPipe->nDefaultTimeOut = 0;
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pNamedPipe->dwFlagsAndAttributes = dwFlagsAndAttributes;
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pNamedPipe->lpFileName = GetNamedPipeNameWithoutPrefixA(lpFileName);
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pNamedPipe->lpFilePath = GetNamedPipeUnixDomainSocketFilePathA(lpFileName);
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pNamedPipe->clientfd = socket(PF_LOCAL, SOCK_STREAM, 0);
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pNamedPipe->serverfd = -1;
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if (0)
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{
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flags = fcntl(pNamedPipe->clientfd, F_GETFL);
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flags = flags | O_NONBLOCK;
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fcntl(pNamedPipe->clientfd, F_SETFL, flags);
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}
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ZeroMemory(&s, sizeof(struct sockaddr_un));
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s.sun_family = AF_UNIX;
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strcpy(s.sun_path, pNamedPipe->lpFilePath);
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status = connect(pNamedPipe->clientfd, (struct sockaddr*) &s, sizeof(struct sockaddr_un));
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if (status != 0)
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return INVALID_HANDLE_VALUE;
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return hNamedPipe;
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}
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HANDLE CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
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DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
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{
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return NULL;
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}
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BOOL DeleteFileA(LPCSTR lpFileName)
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{
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return TRUE;
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}
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BOOL DeleteFileW(LPCWSTR lpFileName)
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{
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return TRUE;
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}
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BOOL ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
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LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
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{
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ULONG Type;
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PVOID Object;
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if (!winpr_Handle_GetInfo(hFile, &Type, &Object))
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return FALSE;
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if (Type == HANDLE_TYPE_ANONYMOUS_PIPE)
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{
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int status;
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WINPR_PIPE* pipe;
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pipe = (WINPR_PIPE*) Object;
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status = read(pipe->fd, lpBuffer, nNumberOfBytesToRead);
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*lpNumberOfBytesRead = status;
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return TRUE;
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}
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else if (Type == HANDLE_TYPE_NAMED_PIPE)
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{
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int status;
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WINPR_NAMED_PIPE* pipe;
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pipe = (WINPR_NAMED_PIPE*) Object;
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if (!(pipe->dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
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{
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status = nNumberOfBytesToRead;
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if (pipe->clientfd == -1)
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return FALSE;
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status = read(pipe->clientfd, lpBuffer, nNumberOfBytesToRead);
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if (status < 0)
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{
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*lpNumberOfBytesRead = 0;
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return FALSE;
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}
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*lpNumberOfBytesRead = status;
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}
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else
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{
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/* Overlapped I/O */
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if (!lpOverlapped)
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return FALSE;
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if (pipe->clientfd == -1)
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return FALSE;
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pipe->lpOverlapped = lpOverlapped;
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#ifdef HAVE_AIO_H
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{
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struct aiocb cb;
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ZeroMemory(&cb, sizeof(struct aiocb));
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cb.aio_nbytes = nNumberOfBytesToRead;
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cb.aio_fildes = pipe->clientfd;
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cb.aio_offset = lpOverlapped->Offset;
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cb.aio_buf = lpBuffer;
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status = aio_read(&cb);
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printf("aio_read status: %d\n", status);
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if (status < 0)
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{
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return FALSE;
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}
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}
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#else
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/* synchronous behavior */
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lpOverlapped->Internal = 0;
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lpOverlapped->InternalHigh = (ULONG_PTR) nNumberOfBytesToRead;
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lpOverlapped->Pointer = (PVOID) lpBuffer;
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SetEvent(lpOverlapped->hEvent);
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#endif
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}
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return TRUE;
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}
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return FALSE;
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}
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BOOL ReadFileEx(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
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LPOVERLAPPED lpOverlapped, LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
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{
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return TRUE;
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}
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BOOL ReadFileScatter(HANDLE hFile, FILE_SEGMENT_ELEMENT aSegmentArray[],
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DWORD nNumberOfBytesToRead, LPDWORD lpReserved, LPOVERLAPPED lpOverlapped)
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{
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return TRUE;
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}
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BOOL WriteFile(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
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LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
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{
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ULONG Type;
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PVOID Object;
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if (!winpr_Handle_GetInfo(hFile, &Type, &Object))
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return FALSE;
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if (Type == HANDLE_TYPE_ANONYMOUS_PIPE)
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{
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int status;
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WINPR_PIPE* pipe;
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pipe = (WINPR_PIPE*) Object;
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status = write(pipe->fd, lpBuffer, nNumberOfBytesToWrite);
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*lpNumberOfBytesWritten = status;
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return TRUE;
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}
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else if (Type == HANDLE_TYPE_NAMED_PIPE)
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{
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int status;
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WINPR_NAMED_PIPE* pipe;
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pipe = (WINPR_NAMED_PIPE*) Object;
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if (!(pipe->dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
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{
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status = nNumberOfBytesToWrite;
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if (pipe->clientfd == -1)
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return FALSE;
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status = write(pipe->clientfd, lpBuffer, nNumberOfBytesToWrite);
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if (status < 0)
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{
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*lpNumberOfBytesWritten = 0;
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return FALSE;
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}
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*lpNumberOfBytesWritten = status;
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}
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else
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{
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/* Overlapped I/O */
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if (!lpOverlapped)
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return FALSE;
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if (pipe->clientfd == -1)
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return FALSE;
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pipe->lpOverlapped = lpOverlapped;
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#ifdef HAVE_AIO_H
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{
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struct aiocb cb;
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ZeroMemory(&cb, sizeof(struct aiocb));
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cb.aio_nbytes = nNumberOfBytesToWrite;
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cb.aio_fildes = pipe->clientfd;
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cb.aio_offset = lpOverlapped->Offset;
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cb.aio_buf = lpBuffer;
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status = aio_write(&cb);
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printf("aio_write status: %d\n", status);
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if (status < 0)
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{
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return FALSE;
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}
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}
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#else
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/* synchronous behavior */
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lpOverlapped->Internal = 1;
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lpOverlapped->InternalHigh = (ULONG_PTR) nNumberOfBytesToWrite;
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lpOverlapped->Pointer = (PVOID) lpBuffer;
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SetEvent(lpOverlapped->hEvent);
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#endif
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}
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return TRUE;
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}
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return FALSE;
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}
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BOOL WriteFileEx(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
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LPOVERLAPPED lpOverlapped, LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
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{
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return TRUE;
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}
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BOOL WriteFileGather(HANDLE hFile, FILE_SEGMENT_ELEMENT aSegmentArray[],
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DWORD nNumberOfBytesToWrite, LPDWORD lpReserved, LPOVERLAPPED lpOverlapped)
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{
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return TRUE;
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}
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BOOL FlushFileBuffers(HANDLE hFile)
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{
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return TRUE;
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}
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BOOL SetEndOfFile(HANDLE hFile)
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{
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return TRUE;
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}
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|
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DWORD SetFilePointer(HANDLE hFile, LONG lDistanceToMove,
|
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PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod)
|
|
{
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return TRUE;
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}
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|
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BOOL SetFilePointerEx(HANDLE hFile, LARGE_INTEGER liDistanceToMove,
|
|
PLARGE_INTEGER lpNewFilePointer, DWORD dwMoveMethod)
|
|
{
|
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return TRUE;
|
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}
|
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|
|
BOOL LockFile(HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
|
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DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh)
|
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{
|
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return TRUE;
|
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}
|
|
|
|
BOOL LockFileEx(HANDLE hFile, DWORD dwFlags, DWORD dwReserved,
|
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DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh, LPOVERLAPPED lpOverlapped)
|
|
{
|
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return TRUE;
|
|
}
|
|
|
|
BOOL UnlockFile(HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
|
|
DWORD nNumberOfBytesToUnlockLow, DWORD nNumberOfBytesToUnlockHigh)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL UnlockFileEx(HANDLE hFile, DWORD dwReserved, DWORD nNumberOfBytesToUnlockLow,
|
|
DWORD nNumberOfBytesToUnlockHigh, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
struct _WIN32_FILE_SEARCH
|
|
{
|
|
DIR* pDir;
|
|
LPSTR lpPath;
|
|
LPSTR lpPattern;
|
|
struct dirent* pDirent;
|
|
};
|
|
typedef struct _WIN32_FILE_SEARCH WIN32_FILE_SEARCH;
|
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|
|
HANDLE FindFirstFileA(LPCSTR lpFileName, LPWIN32_FIND_DATAA lpFindFileData)
|
|
{
|
|
char* p;
|
|
int index;
|
|
int length;
|
|
struct stat fileStat;
|
|
WIN32_FILE_SEARCH* pFileSearch;
|
|
|
|
ZeroMemory(lpFindFileData, sizeof(WIN32_FIND_DATAA));
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|
|
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pFileSearch = (WIN32_FILE_SEARCH*) malloc(sizeof(WIN32_FILE_SEARCH));
|
|
ZeroMemory(pFileSearch, sizeof(WIN32_FILE_SEARCH));
|
|
|
|
/* Separate lpFileName into path and pattern components */
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|
|
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p = strrchr(lpFileName, '/');
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|
|
if (!p)
|
|
p = strrchr(lpFileName, '\\');
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|
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index = (p - lpFileName);
|
|
length = (p - lpFileName);
|
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pFileSearch->lpPath = (LPSTR) malloc(length + 1);
|
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CopyMemory(pFileSearch->lpPath, lpFileName, length);
|
|
pFileSearch->lpPath[length] = '\0';
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|
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length = strlen(lpFileName) - index;
|
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pFileSearch->lpPattern = (LPSTR) malloc(length + 1);
|
|
CopyMemory(pFileSearch->lpPattern, &lpFileName[index + 1], length);
|
|
pFileSearch->lpPattern[length] = '\0';
|
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|
|
/* Check if the path is a directory */
|
|
|
|
if (lstat(pFileSearch->lpPath, &fileStat) < 0)
|
|
{
|
|
free(pFileSearch);
|
|
return INVALID_HANDLE_VALUE; /* stat error */
|
|
}
|
|
|
|
if (S_ISDIR(fileStat.st_mode) == 0)
|
|
{
|
|
free(pFileSearch);
|
|
return INVALID_HANDLE_VALUE; /* not a directory */
|
|
}
|
|
|
|
/* Open directory for reading */
|
|
|
|
pFileSearch->pDir = opendir(pFileSearch->lpPath);
|
|
|
|
if (!pFileSearch->pDir)
|
|
{
|
|
free(pFileSearch);
|
|
return INVALID_HANDLE_VALUE; /* failed to open directory */
|
|
}
|
|
|
|
while ((pFileSearch->pDirent = readdir(pFileSearch->pDir)) != NULL)
|
|
{
|
|
if ((strcmp(pFileSearch->pDirent->d_name, ".") == 0) || (strcmp(pFileSearch->pDirent->d_name, "..") == 0))
|
|
{
|
|
/* skip "." and ".." */
|
|
continue;
|
|
}
|
|
|
|
if (FilePatternMatchA(pFileSearch->pDirent->d_name, pFileSearch->lpPattern))
|
|
{
|
|
strcpy(lpFindFileData->cFileName, pFileSearch->pDirent->d_name);
|
|
return (HANDLE) pFileSearch;
|
|
}
|
|
}
|
|
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
HANDLE FindFirstFileW(LPCWSTR lpFileName, LPWIN32_FIND_DATAW lpFindFileData)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
HANDLE FindFirstFileExA(LPCSTR lpFileName, FINDEX_INFO_LEVELS fInfoLevelId, LPVOID lpFindFileData,
|
|
FINDEX_SEARCH_OPS fSearchOp, LPVOID lpSearchFilter, DWORD dwAdditionalFlags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
HANDLE FindFirstFileExW(LPCWSTR lpFileName, FINDEX_INFO_LEVELS fInfoLevelId, LPVOID lpFindFileData,
|
|
FINDEX_SEARCH_OPS fSearchOp, LPVOID lpSearchFilter, DWORD dwAdditionalFlags)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
BOOL FindNextFileA(HANDLE hFindFile, LPWIN32_FIND_DATAA lpFindFileData)
|
|
{
|
|
WIN32_FILE_SEARCH* pFileSearch;
|
|
|
|
if (!hFindFile)
|
|
return FALSE;
|
|
|
|
if (hFindFile == INVALID_HANDLE_VALUE)
|
|
return FALSE;
|
|
|
|
pFileSearch = (WIN32_FILE_SEARCH*) hFindFile;
|
|
|
|
while ((pFileSearch->pDirent = readdir(pFileSearch->pDir)) != NULL)
|
|
{
|
|
if (FilePatternMatchA(pFileSearch->pDirent->d_name, pFileSearch->lpPattern))
|
|
{
|
|
strcpy(lpFindFileData->cFileName, pFileSearch->pDirent->d_name);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL FindNextFileW(HANDLE hFindFile, LPWIN32_FIND_DATAW lpFindFileData)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL FindClose(HANDLE hFindFile)
|
|
{
|
|
WIN32_FILE_SEARCH* pFileSearch;
|
|
|
|
pFileSearch = (WIN32_FILE_SEARCH*) hFindFile;
|
|
|
|
free(pFileSearch->lpPath);
|
|
free(pFileSearch->lpPattern);
|
|
closedir(pFileSearch->pDir);
|
|
|
|
free(pFileSearch);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL CreateDirectoryA(LPCSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
|
|
{
|
|
if (!mkdir(lpPathName, S_IRUSR | S_IWUSR | S_IXUSR))
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL CreateDirectoryW(LPCWSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* Extended API */
|
|
|
|
#define NAMED_PIPE_PREFIX_PATH "\\\\.\\pipe\\"
|
|
|
|
char* GetNamedPipeNameWithoutPrefixA(LPCSTR lpName)
|
|
{
|
|
char* lpFileName;
|
|
|
|
if (!lpName)
|
|
return NULL;
|
|
|
|
if (strncmp(lpName, NAMED_PIPE_PREFIX_PATH, sizeof(NAMED_PIPE_PREFIX_PATH) - 1) != 0)
|
|
return NULL;
|
|
|
|
lpFileName = _strdup(&lpName[strlen(NAMED_PIPE_PREFIX_PATH)]);
|
|
|
|
return lpFileName;
|
|
}
|
|
|
|
char* GetNamedPipeUnixDomainSocketBaseFilePathA()
|
|
{
|
|
char* lpTempPath;
|
|
char* lpPipePath;
|
|
|
|
lpTempPath = GetKnownPath(KNOWN_PATH_TEMP);
|
|
lpPipePath = GetCombinedPath(lpTempPath, ".pipe");
|
|
|
|
free(lpTempPath);
|
|
|
|
return lpPipePath;
|
|
}
|
|
|
|
char* GetNamedPipeUnixDomainSocketFilePathA(LPCSTR lpName)
|
|
{
|
|
char* lpPipePath;
|
|
char* lpFileName;
|
|
char* lpFilePath;
|
|
|
|
lpPipePath = GetNamedPipeUnixDomainSocketBaseFilePathA();
|
|
|
|
lpFileName = GetNamedPipeNameWithoutPrefixA(lpName);
|
|
lpFilePath = GetCombinedPath(lpPipePath, (char*) lpFileName);
|
|
|
|
free(lpPipePath);
|
|
free(lpFileName);
|
|
|
|
return lpFilePath;
|
|
}
|
|
|
|
int UnixChangeFileMode(const char* filename, int flags)
|
|
{
|
|
#ifndef _WIN32
|
|
mode_t fl = 0;
|
|
|
|
fl |= (flags & 0x4000) ? S_ISUID : 0;
|
|
fl |= (flags & 0x2000) ? S_ISGID : 0;
|
|
fl |= (flags & 0x1000) ? S_ISVTX : 0;
|
|
fl |= (flags & 0x0400) ? S_IRUSR : 0;
|
|
fl |= (flags & 0x0200) ? S_IWUSR : 0;
|
|
fl |= (flags & 0x0100) ? S_IXUSR : 0;
|
|
fl |= (flags & 0x0040) ? S_IRGRP : 0;
|
|
fl |= (flags & 0x0020) ? S_IWGRP : 0;
|
|
fl |= (flags & 0x0010) ? S_IXGRP : 0;
|
|
fl |= (flags & 0x0004) ? S_IROTH : 0;
|
|
fl |= (flags & 0x0002) ? S_IWOTH : 0;
|
|
fl |= (flags & 0x0001) ? S_IXOTH : 0;
|
|
|
|
return chmod(filename, fl);
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|