mirror of
https://github.com/reactos/reactos.git
synced 2024-11-20 06:15:26 +00:00
516 lines
15 KiB
C
516 lines
15 KiB
C
/*
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* ReactOS kernel
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* Copyright (C) 2002 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS text-mode setup
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* FILE: subsys/system/usetup/filesup.c
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* PURPOSE: File support functions
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* PROGRAMMER: Eric Kohl
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* Casper S. Hornstrup (chorns@users.sourceforge.net)
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*/
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/* INCLUDES *****************************************************************/
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#include "usetup.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ****************************************************************/
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static BOOLEAN HasCurrentCabinet = FALSE;
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static WCHAR CurrentCabinetName[MAX_PATH];
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static CAB_SEARCH Search;
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static
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NTSTATUS
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SetupCreateSingleDirectory(
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PWCHAR DirectoryName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING PathName;
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HANDLE DirectoryHandle;
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NTSTATUS Status;
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RtlCreateUnicodeString(&PathName,
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DirectoryName);
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if (PathName.Length > sizeof(WCHAR) &&
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PathName.Buffer[PathName.Length / sizeof(WCHAR) - 2] == L'\\' &&
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PathName.Buffer[PathName.Length / sizeof(WCHAR) - 1] == L'.')
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{
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PathName.Length -= sizeof(WCHAR);
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PathName.Buffer[PathName.Length / sizeof(WCHAR)] = 0;
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}
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if (PathName.Length > sizeof(WCHAR) &&
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PathName.Buffer[PathName.Length / sizeof(WCHAR) - 1] == L'\\')
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{
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PathName.Length -= sizeof(WCHAR);
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PathName.Buffer[PathName.Length / sizeof(WCHAR)] = 0;
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}
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InitializeObjectAttributes(&ObjectAttributes,
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&PathName,
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OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
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NULL,
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NULL);
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Status = NtCreateFile(&DirectoryHandle,
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DIRECTORY_ALL_ACCESS,
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&ObjectAttributes,
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&IoStatusBlock,
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NULL,
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FILE_ATTRIBUTE_DIRECTORY,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_OPEN_IF,
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FILE_DIRECTORY_FILE,
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NULL,
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0);
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if (NT_SUCCESS(Status))
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{
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NtClose(DirectoryHandle);
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}
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RtlFreeUnicodeString(&PathName);
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return Status;
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}
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static
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BOOLEAN
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DoesPathExist(
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PWSTR PathName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING Name;
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HANDLE FileHandle;
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NTSTATUS Status;
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RtlInitUnicodeString(&Name,
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PathName);
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InitializeObjectAttributes(&ObjectAttributes,
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&Name,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenFile(&FileHandle,
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GENERIC_READ | SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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0,
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FILE_SYNCHRONOUS_IO_NONALERT);
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if (!NT_SUCCESS(Status))
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{
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return FALSE;
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}
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NtClose(FileHandle);
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return TRUE;
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}
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NTSTATUS
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SetupCreateDirectory(
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PWCHAR PathName)
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{
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PWCHAR PathBuffer = NULL;
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PWCHAR Ptr, EndPtr;
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ULONG BackslashCount;
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ULONG Size;
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NTSTATUS Status = STATUS_SUCCESS;
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Size = (wcslen(PathName) + 1) * sizeof(WCHAR);
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PathBuffer = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, Size);
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if (PathBuffer == NULL)
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return STATUS_INSUFFICIENT_RESOURCES;
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wcscpy(PathBuffer, PathName);
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EndPtr = PathBuffer + wcslen(PathName);
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Ptr = PathBuffer;
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/* Skip the '\Device\HarddiskX\PartitionY\ part */
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BackslashCount = 0;
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while (Ptr < EndPtr && BackslashCount < 4)
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{
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if (*Ptr == L'\\')
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BackslashCount++;
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Ptr++;
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}
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while (Ptr < EndPtr)
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{
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if (*Ptr == L'\\')
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{
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*Ptr = 0;
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DPRINT("PathBuffer: %S\n", PathBuffer);
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if (!DoesPathExist(PathBuffer))
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{
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DPRINT("Create: %S\n", PathBuffer);
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Status = SetupCreateSingleDirectory(PathBuffer);
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if (!NT_SUCCESS(Status))
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goto done;
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}
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*Ptr = L'\\';
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}
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Ptr++;
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}
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if (!DoesPathExist(PathBuffer))
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{
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DPRINT("Create: %S\n", PathBuffer);
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Status = SetupCreateSingleDirectory(PathBuffer);
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if (!NT_SUCCESS(Status))
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goto done;
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}
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done:
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DPRINT("Done.\n");
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if (PathBuffer != NULL)
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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return Status;
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}
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NTSTATUS
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SetupCopyFile(
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PWCHAR SourceFileName,
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PWCHAR DestinationFileName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE FileHandleSource;
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HANDLE FileHandleDest;
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static IO_STATUS_BLOCK IoStatusBlock;
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FILE_STANDARD_INFORMATION FileStandard;
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FILE_BASIC_INFORMATION FileBasic;
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ULONG RegionSize;
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UNICODE_STRING FileName;
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NTSTATUS Status;
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PVOID SourceFileMap = 0;
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HANDLE SourceFileSection;
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SIZE_T SourceSectionSize = 0;
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LARGE_INTEGER ByteOffset;
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#ifdef __REACTOS__
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RtlInitUnicodeString(&FileName,
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SourceFileName);
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InitializeObjectAttributes(&ObjectAttributes,
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&FileName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenFile(&FileHandleSource,
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GENERIC_READ,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_READ,
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FILE_SEQUENTIAL_ONLY);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtOpenFile failed: %x, %wZ\n", Status, &FileName);
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goto done;
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}
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#else
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FileHandleSource = CreateFileW(SourceFileName,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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0,
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NULL);
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if (FileHandleSource == INVALID_HANDLE_VALUE)
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{
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Status = STATUS_UNSUCCESSFUL;
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goto done;
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}
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#endif
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Status = 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(Status))
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{
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DPRINT1("NtQueryInformationFile failed: %x\n", Status);
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goto closesrc;
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}
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Status = 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(Status))
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{
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DPRINT1("NtQueryInformationFile failed: %x\n", Status);
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goto closesrc;
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}
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Status = NtCreateSection(&SourceFileSection,
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SECTION_MAP_READ,
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NULL,
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NULL,
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PAGE_READONLY,
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SEC_COMMIT,
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FileHandleSource);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtCreateSection failed: %x, %S\n", Status, SourceFileName);
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goto closesrc;
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}
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Status = NtMapViewOfSection(SourceFileSection,
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NtCurrentProcess(),
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&SourceFileMap,
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0,
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0,
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NULL,
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&SourceSectionSize,
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ViewUnmap,
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0,
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PAGE_READONLY );
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtMapViewOfSection failed: %x, %S\n", Status, SourceFileName);
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goto closesrcsec;
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}
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RtlInitUnicodeString(&FileName,
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DestinationFileName);
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InitializeObjectAttributes(&ObjectAttributes,
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&FileName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtCreateFile(&FileHandleDest,
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GENERIC_WRITE | SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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NULL,
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FILE_ATTRIBUTE_NORMAL,
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0,
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FILE_OVERWRITE_IF,
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FILE_NO_INTERMEDIATE_BUFFERING |
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FILE_SEQUENTIAL_ONLY |
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FILE_SYNCHRONOUS_IO_NONALERT,
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NULL,
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0);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtCreateFile failed: %x\n", Status);
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goto unmapsrcsec;
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}
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RegionSize = (ULONG)PAGE_ROUND_UP(FileStandard.EndOfFile.u.LowPart);
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IoStatusBlock.Status = 0;
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ByteOffset.QuadPart = 0;
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Status = NtWriteFile(FileHandleDest,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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SourceFileMap,
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RegionSize,
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&ByteOffset,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtWriteFile failed: %x:%x, iosb: %p src: %p, size: %x\n", Status, IoStatusBlock.Status, &IoStatusBlock, SourceFileMap, RegionSize);
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goto closedest;
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}
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/* Copy file date/time from source file */
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Status = NtSetInformationFile(FileHandleDest,
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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(Status))
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{
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DPRINT1("NtSetInformationFile failed: %x\n", Status);
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goto closedest;
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}
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/* shorten the file back to it's real size after completing the write */
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Status = NtSetInformationFile(FileHandleDest,
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&IoStatusBlock,
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&FileStandard.EndOfFile,
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sizeof(FILE_END_OF_FILE_INFORMATION),
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FileEndOfFileInformation);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("NtSetInformationFile failed: %x\n", Status);
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}
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closedest:
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NtClose(FileHandleDest);
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unmapsrcsec:
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NtUnmapViewOfSection(NtCurrentProcess(), SourceFileMap);
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closesrcsec:
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NtClose(SourceFileSection);
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closesrc:
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NtClose(FileHandleSource);
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done:
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return Status;
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}
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#ifdef __REACTOS__
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NTSTATUS
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SetupExtractFile(
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PWCHAR CabinetFileName,
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PWCHAR SourceFileName,
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PWCHAR DestinationPathName)
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{
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ULONG CabStatus;
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DPRINT("SetupExtractFile(CabinetFileName %S, SourceFileName %S, DestinationPathName %S)\n",
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CabinetFileName, SourceFileName, DestinationPathName);
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if (HasCurrentCabinet)
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{
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DPRINT("CurrentCabinetName: %S\n", CurrentCabinetName);
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}
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if ((HasCurrentCabinet) && (wcscmp(CabinetFileName, CurrentCabinetName) == 0))
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{
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DPRINT("Using same cabinet as last time\n");
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/* Use our last location because the files should be sequential */
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CabStatus = CabinetFindNextFileSequential(SourceFileName, &Search);
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if (CabStatus != CAB_STATUS_SUCCESS)
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{
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DPRINT("Sequential miss on file: %S\n", SourceFileName);
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/* Looks like we got unlucky */
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CabStatus = CabinetFindFirst(SourceFileName, &Search);
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}
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}
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else
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{
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DPRINT("Using new cabinet\n");
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if (HasCurrentCabinet)
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{
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CabinetCleanup();
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}
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wcscpy(CurrentCabinetName, CabinetFileName);
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CabinetInitialize();
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CabinetSetEventHandlers(NULL, NULL, NULL);
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CabinetSetCabinetName(CabinetFileName);
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CabStatus = CabinetOpen();
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if (CabStatus == CAB_STATUS_SUCCESS)
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{
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DPRINT("Opened cabinet %S\n", CabinetGetCabinetName());
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HasCurrentCabinet = TRUE;
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}
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else
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{
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DPRINT("Cannot open cabinet (%d)\n", CabStatus);
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return STATUS_UNSUCCESSFUL;
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}
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/* We have to start at the beginning here */
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CabStatus = CabinetFindFirst(SourceFileName, &Search);
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}
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if (CabStatus != CAB_STATUS_SUCCESS)
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{
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DPRINT1("Unable to find '%S' in cabinet '%S'\n", SourceFileName, CabinetGetCabinetName());
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return STATUS_UNSUCCESSFUL;
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}
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CabinetSetDestinationPath(DestinationPathName);
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CabStatus = CabinetExtractFile(&Search);
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if (CabStatus != CAB_STATUS_SUCCESS)
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{
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DPRINT("Cannot extract file %S (%d)\n", SourceFileName, CabStatus);
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return STATUS_UNSUCCESSFUL;
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}
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return STATUS_SUCCESS;
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}
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#endif
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BOOLEAN
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DoesFileExist(
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PWSTR PathName,
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PWSTR FileName)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING Name;
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WCHAR FullName[MAX_PATH];
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HANDLE FileHandle;
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NTSTATUS Status;
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wcscpy(FullName, PathName);
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if (FileName != NULL)
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{
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if (FileName[0] != L'\\')
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wcscat(FullName, L"\\");
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wcscat(FullName, FileName);
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}
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RtlInitUnicodeString(&Name,
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FullName);
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InitializeObjectAttributes(&ObjectAttributes,
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&Name,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenFile(&FileHandle,
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GENERIC_READ | SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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0,
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FILE_SYNCHRONOUS_IO_NONALERT);
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if (!NT_SUCCESS(Status))
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{
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return FALSE;
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}
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NtClose(FileHandle);
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return TRUE;
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}
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/* EOF */
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