NtCreateFile fails

[Mislav Blazevic]

First of all, pardon my ignorance, I am new to wine and winapi.

I am trying to implement apphelp.dll and I ran into issues with
NtCreateFile: It always returns 0xc0000103, STATUS_NOT_A_DIRECTORY, and I
am not sure what that means. Here is code:

/* This function is not in API, but written for internal use */
HANDLE WINAPI SdbOpenFile( LPCWSTR path, PATH_TYPE type )
{
/* SNIP */
if (type == DOS_PATH)
if (!RtlDosPathNameToNtPathName_U(path, &str, NULL, NULL))
return NULL;
 InitializeObjectAttributes(&attr, &str, OBJ_CASE_INSENSITIVE, NULL, NULL);
 status = NtCreateFile(&file, GENERIC_READ | SYNCHRONIZE |
FILE_READ_ATTRIBUTES,
          &attr, &io, NULL, FILE_ATTRIBUTE_NORMAL, FILE_SHARE_READ,
          FILE_OPEN, FILE_DIRECTORY_FILE, NULL, 0);
/* SNIP */
return file;
}

Function is called like this:

WCHAR szFileName[1024] = {0};
ExpandEnvironmentStringsW(L"%SystemRoot%\sample.sdb", szFileName, 1024);
// for testing purposes
SdbOpenFile(szFileName, DOS_PATH);

Compiled with winegcc.
I am sure that C:\windows\sample.sdb exists. What am I doing wrong?

[Nikolay Sivov]

On 7/29/2013 18:02, Mislav Blazevic wrote:
> First of all, pardon my ignorance, I am new to wine and winapi.
>
> I am trying to implement apphelp.dll and I ran into issues with 
> NtCreateFile: It always returns 0xc0000103, STATUS_NOT_A_DIRECTORY, 
> and I am not sure what that means. Here is code:
>
> /* This function is not in API, but written for internal use */
> HANDLE WINAPI SdbOpenFile( LPCWSTR path, PATH_TYPE type )
> {
> /* SNIP */
> if (type == DOS_PATH)
> if (!RtlDosPathNameToNtPathName_U(path, &str, NULL, NULL))
> return NULL;
> InitializeObjectAttributes(&attr, &str, OBJ_CASE_INSENSITIVE, NULL, NULL);
> status = NtCreateFile(&file, GENERIC_READ | SYNCHRONIZE | 
> FILE_READ_ATTRIBUTES,
>  &attr, &io, NULL, FILE_ATTRIBUTE_NORMAL, FILE_SHARE_READ,
>  FILE_OPEN, FILE_DIRECTORY_FILE, NULL, 0);
> /* SNIP */
> return file;
> }
>
> Function is called like this:
>
> WCHAR szFileName[1024] = {0};
> ExpandEnvironmentStringsW(L"%SystemRoot%\sample.sdb", szFileName, 
> 1024); // for testing purposes
> SdbOpenFile(szFileName, DOS_PATH);
>
> Compiled with winegcc.
> I am sure that C:\windows\sample.sdb exists. What am I doing wrong?

Probably you don't nee****d FILE_DIRECTORY_FILE if it's not a directory?

[Marcus Meissner]

On Mon, Jul 29, 2013 at 04:02:03PM +0200, Mislav Blazevic wrote:
> First of all, pardon my ignorance, I am new to wine and winapi.
>
> I am trying to implement apphelp.dll and I ran into issues with
> NtCreateFile: It always returns 0xc0000103, STATUS_NOT_A_DIRECTORY, and I
> am not sure what that means. Here is code:
>
> /* This function is not in API, but written for internal use */
> HANDLE WINAPI SdbOpenFile( LPCWSTR path, PATH_TYPE type )
> {
> /* SNIP */
> if (type == DOS_PATH)
> if (!RtlDosPathNameToNtPathName_U(path, &str, NULL, NULL))
> return NULL;
>  InitializeObjectAttributes(&attr, &str, OBJ_CASE_INSENSITIVE, NULL, NULL);
>  status = NtCreateFile(&file, GENERIC_READ | SYNCHRONIZE |
> FILE_READ_ATTRIBUTES,
>           &attr, &io, NULL, FILE_ATTRIBUTE_NORMAL, FILE_SHARE_READ,
>           FILE_OPEN, FILE_DIRECTORY_FILE, NULL, 0);
> /* SNIP */
> return file;
> }
>
> Function is called like this:
>
> WCHAR szFileName[1024] = {0};
> ExpandEnvironmentStringsW(L"%SystemRoot%\sample.sdb", szFileName, 1024);
> // for testing purposes
> SdbOpenFile(szFileName, DOS_PATH);
>
> Compiled with winegcc.
> I am sure that C:\windows\sample.sdb exists. What am I doing wrong?

Try printing out the expanded string. It will probably just print "C"

L"string" does not work to specify WCHAR*, as the Linux L"" strings are
differently sized than the Windows L"" strings.

Ciao, Marcus