mirror of
https://github.com/reactos/reactos.git
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408 lines
13 KiB
C
408 lines
13 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/kernel32/file/copy.c
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* PURPOSE: Copying files
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* PROGRAMMER: Ariadne (ariadne@xs4all.nl)
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* UPDATE HISTORY:
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* 01/11/98 Created
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* 07/02/99 Moved to seperate file
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*/
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/* INCLUDES ****************************************************************/
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#include <k32.h>
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#define NDEBUG
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#include <debug.h>
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#if DBG
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DEBUG_CHANNEL(kernel32file);
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#endif
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/* FUNCTIONS ****************************************************************/
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static NTSTATUS
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CopyLoop (
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HANDLE FileHandleSource,
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HANDLE FileHandleDest,
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LARGE_INTEGER SourceFileSize,
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LPPROGRESS_ROUTINE lpProgressRoutine,
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LPVOID lpData,
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BOOL *pbCancel,
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BOOL *KeepDest
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)
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{
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NTSTATUS errCode;
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IO_STATUS_BLOCK IoStatusBlock;
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UCHAR *lpBuffer = NULL;
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SIZE_T RegionSize = 0x10000;
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LARGE_INTEGER BytesCopied;
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DWORD CallbackReason;
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DWORD ProgressResult;
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BOOL EndOfFileFound;
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*KeepDest = FALSE;
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errCode = NtAllocateVirtualMemory(NtCurrentProcess(),
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(PVOID *)&lpBuffer,
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0,
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&RegionSize,
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MEM_RESERVE | MEM_COMMIT,
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PAGE_READWRITE);
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if (NT_SUCCESS(errCode))
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{
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BytesCopied.QuadPart = 0;
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EndOfFileFound = FALSE;
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CallbackReason = CALLBACK_STREAM_SWITCH;
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while (! EndOfFileFound &&
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NT_SUCCESS(errCode) &&
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(NULL == pbCancel || ! *pbCancel))
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{
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if (NULL != lpProgressRoutine)
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{
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ProgressResult = (*lpProgressRoutine)(SourceFileSize,
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BytesCopied,
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SourceFileSize,
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BytesCopied,
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0,
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CallbackReason,
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FileHandleSource,
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FileHandleDest,
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lpData);
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switch (ProgressResult)
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{
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case PROGRESS_CANCEL:
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TRACE("Progress callback requested cancel\n");
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errCode = STATUS_REQUEST_ABORTED;
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break;
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case PROGRESS_STOP:
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TRACE("Progress callback requested stop\n");
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errCode = STATUS_REQUEST_ABORTED;
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*KeepDest = TRUE;
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break;
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case PROGRESS_QUIET:
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lpProgressRoutine = NULL;
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break;
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case PROGRESS_CONTINUE:
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default:
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break;
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}
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CallbackReason = CALLBACK_CHUNK_FINISHED;
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}
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if (NT_SUCCESS(errCode))
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{
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errCode = NtReadFile(FileHandleSource,
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NULL,
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NULL,
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NULL,
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(PIO_STATUS_BLOCK)&IoStatusBlock,
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lpBuffer,
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RegionSize,
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NULL,
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NULL);
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if (NT_SUCCESS(errCode) && (NULL == pbCancel || ! *pbCancel))
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{
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errCode = NtWriteFile(FileHandleDest,
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NULL,
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NULL,
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NULL,
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(PIO_STATUS_BLOCK)&IoStatusBlock,
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lpBuffer,
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IoStatusBlock.Information,
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NULL,
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NULL);
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if (NT_SUCCESS(errCode))
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{
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BytesCopied.QuadPart += IoStatusBlock.Information;
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}
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else
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{
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WARN("Error 0x%08x reading writing to dest\n", errCode);
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}
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}
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else if (!NT_SUCCESS(errCode))
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{
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if (STATUS_END_OF_FILE == errCode)
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{
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EndOfFileFound = TRUE;
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errCode = STATUS_SUCCESS;
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}
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else
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{
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WARN("Error 0x%08x reading from source\n", errCode);
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}
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}
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}
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}
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if (! EndOfFileFound && (NULL != pbCancel && *pbCancel))
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{
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TRACE("User requested cancel\n");
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errCode = STATUS_REQUEST_ABORTED;
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}
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NtFreeVirtualMemory(NtCurrentProcess(),
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(PVOID *)&lpBuffer,
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&RegionSize,
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MEM_RELEASE);
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}
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else
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{
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TRACE("Error 0x%08x allocating buffer of %d bytes\n", errCode, RegionSize);
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}
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return errCode;
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}
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static NTSTATUS
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SetLastWriteTime(
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HANDLE FileHandle,
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LARGE_INTEGER LastWriteTime
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)
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{
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NTSTATUS errCode = STATUS_SUCCESS;
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IO_STATUS_BLOCK IoStatusBlock;
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FILE_BASIC_INFORMATION FileBasic;
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errCode = NtQueryInformationFile (FileHandle,
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&IoStatusBlock,
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&FileBasic,
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sizeof(FILE_BASIC_INFORMATION),
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FileBasicInformation);
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if (!NT_SUCCESS(errCode))
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{
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WARN("Error 0x%08x obtaining FileBasicInformation\n", errCode);
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}
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else
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{
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FileBasic.LastWriteTime.QuadPart = LastWriteTime.QuadPart;
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errCode = NtSetInformationFile (FileHandle,
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&IoStatusBlock,
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&FileBasic,
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sizeof(FILE_BASIC_INFORMATION),
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FileBasicInformation);
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if (!NT_SUCCESS(errCode))
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{
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WARN("Error 0x%0x setting LastWriteTime\n", errCode);
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}
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}
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return errCode;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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CopyFileExW (
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LPCWSTR lpExistingFileName,
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LPCWSTR lpNewFileName,
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LPPROGRESS_ROUTINE lpProgressRoutine,
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LPVOID lpData,
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BOOL *pbCancel,
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DWORD dwCopyFlags
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)
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{
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NTSTATUS errCode;
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HANDLE FileHandleSource, FileHandleDest;
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IO_STATUS_BLOCK IoStatusBlock;
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FILE_STANDARD_INFORMATION FileStandard;
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FILE_BASIC_INFORMATION FileBasic;
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BOOL RC = FALSE;
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BOOL KeepDestOnError = FALSE;
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DWORD SystemError;
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FileHandleSource = CreateFileW(lpExistingFileName,
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL|FILE_FLAG_NO_BUFFERING,
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NULL);
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if (INVALID_HANDLE_VALUE != FileHandleSource)
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{
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errCode = NtQueryInformationFile(FileHandleSource,
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&IoStatusBlock,
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&FileStandard,
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sizeof(FILE_STANDARD_INFORMATION),
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FileStandardInformation);
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if (!NT_SUCCESS(errCode))
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{
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TRACE("Status 0x%08x obtaining FileStandardInformation for source\n", errCode);
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BaseSetLastNTError(errCode);
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}
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else
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{
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errCode = NtQueryInformationFile(FileHandleSource,
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&IoStatusBlock,&FileBasic,
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sizeof(FILE_BASIC_INFORMATION),
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FileBasicInformation);
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if (!NT_SUCCESS(errCode))
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{
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TRACE("Status 0x%08x obtaining FileBasicInformation for source\n", errCode);
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BaseSetLastNTError(errCode);
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}
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else
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{
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FileHandleDest = CreateFileW(lpNewFileName,
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GENERIC_WRITE,
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FILE_SHARE_WRITE,
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NULL,
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dwCopyFlags ? CREATE_NEW : CREATE_ALWAYS,
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FileBasic.FileAttributes,
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NULL);
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if (INVALID_HANDLE_VALUE != FileHandleDest)
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{
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errCode = CopyLoop(FileHandleSource,
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FileHandleDest,
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FileStandard.EndOfFile,
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lpProgressRoutine,
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lpData,
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pbCancel,
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&KeepDestOnError);
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if (!NT_SUCCESS(errCode))
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{
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BaseSetLastNTError(errCode);
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}
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else
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{
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LARGE_INTEGER t;
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t.QuadPart = FileBasic.LastWriteTime.QuadPart;
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errCode = SetLastWriteTime(FileHandleDest, t);
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if (!NT_SUCCESS(errCode))
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{
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BaseSetLastNTError(errCode);
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}
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else
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{
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RC = TRUE;
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}
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}
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NtClose(FileHandleDest);
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if (! RC && ! KeepDestOnError)
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{
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SystemError = GetLastError();
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SetFileAttributesW(lpNewFileName, FILE_ATTRIBUTE_NORMAL);
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DeleteFileW(lpNewFileName);
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SetLastError(SystemError);
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}
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}
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else
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{
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WARN("Error %d during opening of dest file\n", GetLastError());
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}
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}
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}
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NtClose(FileHandleSource);
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}
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else
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{
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WARN("Error %d during opening of source file\n", GetLastError());
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}
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return RC;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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CopyFileExA(IN LPCSTR lpExistingFileName,
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IN LPCSTR lpNewFileName,
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IN LPPROGRESS_ROUTINE lpProgressRoutine OPTIONAL,
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IN LPVOID lpData OPTIONAL,
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IN LPBOOL pbCancel OPTIONAL,
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IN DWORD dwCopyFlags)
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{
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BOOL Result = FALSE;
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UNICODE_STRING lpNewFileNameW;
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PUNICODE_STRING lpExistingFileNameW;
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lpExistingFileNameW = Basep8BitStringToStaticUnicodeString(lpExistingFileName);
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if (!lpExistingFileName)
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{
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return FALSE;
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}
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if (Basep8BitStringToDynamicUnicodeString(&lpNewFileNameW, lpNewFileName))
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{
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Result = CopyFileExW(lpExistingFileNameW->Buffer,
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lpNewFileNameW.Buffer,
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lpProgressRoutine,
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lpData,
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pbCancel,
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dwCopyFlags);
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RtlFreeUnicodeString(&lpNewFileNameW);
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}
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return Result;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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CopyFileA (
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LPCSTR lpExistingFileName,
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LPCSTR lpNewFileName,
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BOOL bFailIfExists
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)
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{
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return CopyFileExA (lpExistingFileName,
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lpNewFileName,
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NULL,
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NULL,
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NULL,
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bFailIfExists);
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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CopyFileW (
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LPCWSTR lpExistingFileName,
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LPCWSTR lpNewFileName,
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BOOL bFailIfExists
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)
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{
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return CopyFileExW (lpExistingFileName,
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lpNewFileName,
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NULL,
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NULL,
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NULL,
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bFailIfExists);
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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PrivCopyFileExW (
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LPCWSTR lpExistingFileName,
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LPCWSTR lpNewFileName,
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LPPROGRESS_ROUTINE lpProgressRoutine,
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LPVOID lpData,
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BOOL *pbCancel,
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DWORD dwCopyFlags
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)
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{
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UNIMPLEMENTED;
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return FALSE;
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}
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/* EOF */
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