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128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/* $Id$
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*
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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/create.c
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* PURPOSE: Directory functions
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* PROGRAMMER: Ariadne ( ariadne@xs4all.nl)
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* UPDATE HISTORY:
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*/
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/* INCLUDES *****************************************************************/
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#include <k32.h>
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#include <wine/debug.h>
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WINE_DEFAULT_DEBUG_CHANNEL(kernel32file);
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/* GLOBALS ******************************************************************/
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LONG ProcessPipeId = 0;
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/* FUNCTIONS ****************************************************************/
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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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CreatePipe(PHANDLE hReadPipe,
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PHANDLE hWritePipe,
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LPSECURITY_ATTRIBUTES lpPipeAttributes,
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DWORD nSize)
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{
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WCHAR Buffer[64];
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UNICODE_STRING PipeName;
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK StatusBlock;
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LARGE_INTEGER DefaultTimeout;
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NTSTATUS Status;
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HANDLE ReadPipeHandle;
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HANDLE WritePipeHandle;
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LONG PipeId;
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ULONG Attributes;
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PSECURITY_DESCRIPTOR SecurityDescriptor = NULL;
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/* Set the timeout to 120 seconds */
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DefaultTimeout.QuadPart = -1200000000;
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/* Use default buffer size if desired */
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if (!nSize) nSize = 0x1000;
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/* Increase the Pipe ID */
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PipeId = InterlockedIncrement(&ProcessPipeId);
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/* Create the pipe name */
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swprintf(Buffer,
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L"\\Device\\NamedPipe\\Win32Pipes.%08x.%08x",
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NtCurrentTeb()->ClientId.UniqueProcess,
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PipeId);
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RtlInitUnicodeString(&PipeName, Buffer);
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/* Always use case insensitive */
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Attributes = OBJ_CASE_INSENSITIVE;
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/* Check if we got attributes */
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if (lpPipeAttributes)
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{
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/* Use the attributes' SD instead */
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SecurityDescriptor = lpPipeAttributes->lpSecurityDescriptor;
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/* Set OBJ_INHERIT if requested */
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if (lpPipeAttributes->bInheritHandle) Attributes |= OBJ_INHERIT;
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}
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/* Initialize the attributes */
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InitializeObjectAttributes(&ObjectAttributes,
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&PipeName,
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Attributes,
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NULL,
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SecurityDescriptor);
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/* Create the named pipe */
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Status = NtCreateNamedPipeFile(&ReadPipeHandle,
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GENERIC_READ |FILE_WRITE_ATTRIBUTES | SYNCHRONIZE,
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&ObjectAttributes,
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&StatusBlock,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_CREATE,
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FILE_SYNCHRONOUS_IO_NONALERT,
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FILE_PIPE_BYTE_STREAM_TYPE,
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FILE_PIPE_BYTE_STREAM_MODE,
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FILE_PIPE_QUEUE_OPERATION,
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1,
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nSize,
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nSize,
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&DefaultTimeout);
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if (!NT_SUCCESS(Status))
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{
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/* Convert error and fail */
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WARN("Status: %lx\n", Status);
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SetLastErrorByStatus(Status);
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return FALSE;
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}
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/* Now try opening it for write access */
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Status = NtOpenFile(&WritePipeHandle,
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FILE_GENERIC_WRITE | SYNCHRONIZE,
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&ObjectAttributes,
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&StatusBlock,
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FILE_SHARE_READ,
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FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE);
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if (!NT_SUCCESS(Status))
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{
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/* Convert error and fail */
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WARN("Status: %lx\n", Status);
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NtClose(ReadPipeHandle);
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SetLastErrorByStatus(Status);
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return FALSE;
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}
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/* Return both handles */
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*hReadPipe = ReadPipeHandle;
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*hWritePipe = WritePipeHandle;
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return TRUE;
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}
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/* EOF */
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