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kernel32: Implement ReplaceFileW. 

Based on a patch by Erich Hoover.
This commit is contained in:
Rob Shearman 2008-02-07 12:43:25 +00:00 committed by Alexandre Julliard
parent 06a3c3a281
commit c72de7bce2
1 changed files with 158 additions and 5 deletions
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163
dlls/kernel32/file.c
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@ -1524,14 +1524,167 @@ BOOL WINAPI DeleteFileA( LPCSTR path )
* ReplaceFileW (KERNEL32.@)
* ReplaceFile (KERNEL32.@)
*/
BOOL WINAPI ReplaceFileW(LPCWSTR lpReplacedFileName,LPCWSTR lpReplacementFileName,
BOOL WINAPI ReplaceFileW(LPCWSTR lpReplacedFileName, LPCWSTR lpReplacementFileName,
LPCWSTR lpBackupFileName, DWORD dwReplaceFlags,
LPVOID lpExclude, LPVOID lpReserved)
{
FIXME("(%s,%s,%s,%08x,%p,%p) stub\n",debugstr_w(lpReplacedFileName),debugstr_w(lpReplacementFileName),
debugstr_w(lpBackupFileName),dwReplaceFlags,lpExclude,lpReserved);
SetLastError(ERROR_UNABLE_TO_MOVE_REPLACEMENT);
return FALSE;
UNICODE_STRING nt_replaced_name, nt_replacement_name;
ANSI_STRING unix_replaced_name, unix_replacement_name, unix_backup_name;
HANDLE hReplaced = NULL, hReplacement = NULL, hBackup = NULL;
DWORD error = ERROR_SUCCESS;
UINT replaced_flags;
BOOL ret = FALSE;
NTSTATUS status;
IO_STATUS_BLOCK io;
OBJECT_ATTRIBUTES attr;
if (dwReplaceFlags)
FIXME("Ignoring flags %x\n", dwReplaceFlags);
/* First two arguments are mandatory */
if (!lpReplacedFileName || !lpReplacementFileName)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
unix_replaced_name.Buffer = NULL;
unix_replacement_name.Buffer = NULL;
unix_backup_name.Buffer = NULL;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = NULL;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
/* Open the "replaced" file for reading and writing */
if (!(RtlDosPathNameToNtPathName_U(lpReplacedFileName, &nt_replaced_name, NULL, NULL)))
{
error = ERROR_PATH_NOT_FOUND;
goto fail;
}
replaced_flags = lpBackupFileName ? FILE_OPEN : FILE_OPEN_IF;
attr.ObjectName = &nt_replaced_name;
status = NtOpenFile(&hReplaced, GENERIC_READ|GENERIC_WRITE|DELETE|SYNCHRONIZE,
&attr, &io,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE);
if (status == STATUS_SUCCESS)
status = wine_nt_to_unix_file_name(&nt_replaced_name, &unix_replaced_name, replaced_flags, FALSE);
RtlFreeUnicodeString(&nt_replaced_name);
if (status != STATUS_SUCCESS)
{
if (status == STATUS_OBJECT_NAME_NOT_FOUND)
error = ERROR_FILE_NOT_FOUND;
else
error = ERROR_UNABLE_TO_REMOVE_REPLACED;
goto fail;
}
/*
* Open the replacement file for reading, writing, and deleting
* (writing and deleting are needed when finished)
*/
if (!(RtlDosPathNameToNtPathName_U(lpReplacementFileName, &nt_replacement_name, NULL, NULL)))
{
error = ERROR_PATH_NOT_FOUND;
goto fail;
}
attr.ObjectName = &nt_replacement_name;
status = NtOpenFile(&hReplacement,
GENERIC_READ|GENERIC_WRITE|DELETE|WRITE_DAC|SYNCHRONIZE,
&attr, &io, 0,
FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE);
if (status == STATUS_SUCCESS)
status = wine_nt_to_unix_file_name(&nt_replacement_name, &unix_replacement_name, FILE_OPEN, FALSE);
RtlFreeUnicodeString(&nt_replacement_name);
if (status != STATUS_SUCCESS)
{
error = RtlNtStatusToDosError(status);
goto fail;
}
/* If the user wants a backup then that needs to be performed first */
if (lpBackupFileName)
{
UNICODE_STRING nt_backup_name;
FILE_BASIC_INFORMATION replaced_info;
/* Obtain the file attributes from the "replaced" file */
status = NtQueryInformationFile(hReplaced, &io, &replaced_info,
sizeof(replaced_info),
FileBasicInformation);
if (status != STATUS_SUCCESS)
{
error = RtlNtStatusToDosError(status);
goto fail;
}
if (!(RtlDosPathNameToNtPathName_U(lpBackupFileName, &nt_backup_name, NULL, NULL)))
{
error = ERROR_PATH_NOT_FOUND;
goto fail;
}
attr.ObjectName = &nt_backup_name;
/* Open the backup with permissions to write over it */
status = NtCreateFile(&hBackup, GENERIC_WRITE,
&attr, &io, NULL, replaced_info.FileAttributes,
FILE_SHARE_WRITE, FILE_OPEN_IF,
FILE_SYNCHRONOUS_IO_NONALERT|FILE_NON_DIRECTORY_FILE,
NULL, 0);
if (status == STATUS_SUCCESS)
status = wine_nt_to_unix_file_name(&nt_backup_name, &unix_backup_name, FILE_OPEN_IF, FALSE);
if (status != STATUS_SUCCESS)
{
error = RtlNtStatusToDosError(status);
goto fail;
}
/* If an existing backup exists then copy over it */
if (rename(unix_replaced_name.Buffer, unix_backup_name.Buffer) == -1)
{
error = ERROR_UNABLE_TO_REMOVE_REPLACED; /* is this correct? */
goto fail;
}
}
/*
* Now that the backup has been performed (if requested), copy the replacement
* into place
*/
if (rename(unix_replacement_name.Buffer, unix_replaced_name.Buffer) == -1)
{
if (errno == EACCES)
{
/* Inappropriate permissions on "replaced", rename will fail */
error = ERROR_UNABLE_TO_REMOVE_REPLACED;
goto fail;
}
/* on failure we need to indicate whether a backup was made */
if (!lpBackupFileName)
error = ERROR_UNABLE_TO_MOVE_REPLACEMENT;
else
error = ERROR_UNABLE_TO_MOVE_REPLACEMENT_2;
goto fail;
}
/* Success! */
ret = TRUE;
/* Perform resource cleanup */
fail:
if (hBackup) CloseHandle(hBackup);
if (hReplaced) CloseHandle(hReplaced);
if (hReplacement) CloseHandle(hReplacement);
RtlFreeAnsiString(&unix_backup_name);
RtlFreeAnsiString(&unix_replacement_name);
RtlFreeAnsiString(&unix_replaced_name);
/* If there was an error, set the error code */
if(!ret)
SetLastError(error);
return ret;
}