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[KERNEL32]: Reimplement DeleteFileA and W to handle the new ansi-Unicode functions, as well as to handle the same cases that Pierre implemented in the directory functions (dealing with reparse points and tags).
svn path=/trunk/; revision=56650
This commit is contained in:
Alex Ionescu
parent
25d5ac32b6
commit
7b19834435
1 changed files with 189 additions and 77 deletions
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@ -14,7 +14,6 @@
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#include <k32.h>
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#define NDEBUG
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#include <reactos/debug.h>
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DEBUG_CHANNEL(kernel32file);
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/* FUNCTIONS ****************************************************************/
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@ -23,101 +22,214 @@ DEBUG_CHANNEL(kernel32file);
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*/
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BOOL
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WINAPI
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DeleteFileA (
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LPCSTR lpFileName
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)
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DeleteFileA(IN LPCSTR lpFileName)
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{
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PWCHAR FileNameW;
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PUNICODE_STRING FileName;
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if (!(FileNameW = FilenameA2W(lpFileName, FALSE)))
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return FALSE;
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return DeleteFileW (FileNameW);
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/* Convert the string to unicode, and call the wide function */
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FileName = Basep8BitStringToStaticUnicodeString(lpFileName);
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if (FileName) return DeleteFileW(FileName->Buffer);
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return FALSE;
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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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DeleteFileW (
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LPCWSTR lpFileName
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)
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DeleteFileW(IN LPCWSTR lpFileName)
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{
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FILE_DISPOSITION_INFORMATION FileDispInfo;
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING NtPathU;
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HANDLE FileHandle;
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NTSTATUS Status;
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FILE_DISPOSITION_INFORMATION FileDispInfo;
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING NtPathU;
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HANDLE FileHandle;
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NTSTATUS Status;
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RTL_RELATIVE_NAME_U RelativeName;
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PWCHAR PathBuffer;
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FILE_ATTRIBUTE_TAG_INFORMATION FileTagInformation;
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TRACE("DeleteFileW (lpFileName %S)\n",lpFileName);
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/* Convert to NT path and get the relative name too */
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if (!RtlDosPathNameToNtPathName_U(lpFileName,
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&NtPathU,
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NULL,
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&RelativeName))
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{
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/* Bail out if the path name makes no sense */
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SetLastError(ERROR_PATH_NOT_FOUND);
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return FALSE;
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}
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if (!RtlDosPathNameToNtPathName_U (lpFileName,
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&NtPathU,
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NULL,
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NULL))
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{
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SetLastError(ERROR_PATH_NOT_FOUND);
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return FALSE;
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}
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/* Save the path buffer in case we free it later */
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PathBuffer = NtPathU.Buffer;
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TRACE("NtPathU \'%wZ\'\n", &NtPathU);
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/* If we have a relative name... */
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if (RelativeName.RelativeName.Length)
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{
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/* Do a relative open with only the relative path set */
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NtPathU = RelativeName.RelativeName;
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}
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else
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{
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/* Do a full path open with no containing directory */
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RelativeName.ContainingDirectory = NULL;
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}
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InitializeObjectAttributes(&ObjectAttributes,
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&NtPathU,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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/* Now open the directory name that was passed in */
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InitializeObjectAttributes(&ObjectAttributes,
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&NtPathU,
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OBJ_CASE_INSENSITIVE,
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RelativeName.ContainingDirectory,
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NULL);
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Status = NtOpenFile(&FileHandle,
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DELETE | FILE_READ_ATTRIBUTES,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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FILE_NON_DIRECTORY_FILE |
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FILE_OPEN_FOR_BACKUP_INTENT |
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FILE_OPEN_REPARSE_POINT);
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if (NT_SUCCESS(Status))
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{
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/* Check if there's a reparse point associated with this file handle */
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Status = NtQueryInformationFile(FileHandle,
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&IoStatusBlock,
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&FileTagInformation,
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sizeof(FileTagInformation),
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FileAttributeTagInformation);
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if ((NT_SUCCESS(Status)) &&
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(FileTagInformation.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
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(FileTagInformation.ReparseTag != IO_REPARSE_TAG_MOUNT_POINT))
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{
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/* There is, so now try to open it with reparse behavior */
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NtClose(FileHandle);
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Status = NtOpenFile(&FileHandle,
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DELETE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_DELETE |
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FILE_SHARE_READ |
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FILE_SHARE_WRITE,
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FILE_NON_DIRECTORY_FILE |
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FILE_OPEN_FOR_BACKUP_INTENT);
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if (!NT_SUCCESS(Status))
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{
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/* We failed -- maybe whoever is handling this tag isn't there */
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if (Status == STATUS_IO_REPARSE_TAG_NOT_HANDLED)
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{
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/* Try to open it for delete, without reparse behavior */
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Status = NtOpenFile(&FileHandle,
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DELETE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_READ |
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FILE_SHARE_WRITE |
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FILE_SHARE_DELETE,
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FILE_NON_DIRECTORY_FILE |
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FILE_OPEN_FOR_BACKUP_INTENT |
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FILE_OPEN_REPARSE_POINT);
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}
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Status = NtCreateFile (&FileHandle,
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DELETE,
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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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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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FILE_OPEN,
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FILE_NON_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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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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BaseSetLastNTError(Status);
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return FALSE;
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}
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}
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}
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else if (!(NT_SUCCESS(Status)) &&
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(Status != STATUS_NOT_IMPLEMENTED) &&
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(Status != STATUS_INVALID_PARAMETER))
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{
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/* We had some critical error querying the attributes, bail out */
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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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NtClose(FileHandle);
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BaseSetLastNTError(Status);
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return FALSE;
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}
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}
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else
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{
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/* It's possible that FILE_OPEN_REPARSE_POINT was not understood */
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if (Status == STATUS_INVALID_PARAMETER)
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{
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/* Try opening the file normally, with reparse behavior */
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Status = NtOpenFile(&FileHandle,
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DELETE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_DELETE |
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FILE_SHARE_READ |
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FILE_SHARE_WRITE,
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FILE_NON_DIRECTORY_FILE |
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FILE_OPEN_FOR_BACKUP_INTENT);
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if (!NT_SUCCESS(Status))
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{
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/* This failed too, fail */
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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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BaseSetLastNTError(Status);
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return FALSE;
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}
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}
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else
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{
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/* Maybe we didn't have READ_ATTRIBUTE rights? */
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if (Status != STATUS_ACCESS_DENIED)
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{
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/* Nope, it was something else, let's fail */
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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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BaseSetLastNTError(Status);
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return FALSE;
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}
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RtlFreeHeap(RtlGetProcessHeap(),
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0,
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NtPathU.Buffer);
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/* Let's try again, without querying attributes */
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Status = NtOpenFile(&FileHandle,
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DELETE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_DELETE |
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FILE_SHARE_READ |
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FILE_SHARE_WRITE,
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FILE_NON_DIRECTORY_FILE |
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FILE_OPEN_FOR_BACKUP_INTENT |
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FILE_OPEN_REPARSE_POINT);
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if (!NT_SUCCESS(Status))
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{
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/* This failed too, so bail out */
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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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BaseSetLastNTError(Status);
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return FALSE;
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}
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}
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}
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if (!NT_SUCCESS(Status))
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{
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WARN("Status 0x%08x\n", Status);
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BaseSetLastNTError (Status);
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return FALSE;
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}
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/* Ready to delete the file, so cleanup temporary data */
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RtlReleaseRelativeName(&RelativeName);
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RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
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FileDispInfo.DeleteFile = TRUE;
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/* Ask for the file to be deleted */
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FileDispInfo.DeleteFile = TRUE;
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Status = NtSetInformationFile(FileHandle,
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&IoStatusBlock,
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&FileDispInfo,
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sizeof(FILE_DISPOSITION_INFORMATION),
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FileDispositionInformation);
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NtClose(FileHandle);
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if (!NT_SUCCESS(Status))
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{
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/* Deletion failed, tell the caller */
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BaseSetLastNTError(Status);
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return FALSE;
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}
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Status = NtSetInformationFile (FileHandle,
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&IoStatusBlock,
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&FileDispInfo,
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sizeof(FILE_DISPOSITION_INFORMATION),
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FileDispositionInformation);
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if (!NT_SUCCESS(Status))
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{
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WARN("Status 0x%08x\n", Status);
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NtClose (FileHandle);
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BaseSetLastNTError (Status);
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return FALSE;
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}
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Status = NtClose (FileHandle);
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if (!NT_SUCCESS (Status))
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{
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WARN("Status 0x%08x\n", Status);
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BaseSetLastNTError (Status);
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return FALSE;
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}
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return TRUE;
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/* Tell the caller deletion worked */
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return TRUE;
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}
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/* EOF */
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