#include <windows.h>
#include <ntdef.h>
#include <stdio.h>

/* compile as follows: gcc -o create_raw create_raw.c -lntdll */

typedef struct _IO_STATUS_BLOCK
{
  NTSTATUS Status;
  ULONG Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;

NTSTATUS NTAPI ZwCreateFile (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES,
			     PIO_STATUS_BLOCK, PLARGE_INTEGER, ULONG, ULONG,
                             ULONG, ULONG, PVOID, ULONG);
NTSTATUS NTAPI ZwClose (HANDLE);

#define sys_mbstowcs(_t,_s,_l) MultiByteToWideChar(CP_ACP,0,(_s),-1,(_t),(_l))

static void
str2buf2uni (UNICODE_STRING *tgt, WCHAR *buf, const char *srcstr)
{
  tgt->Length = strlen (srcstr) * sizeof (WCHAR);
  tgt->MaximumLength = tgt->Length + sizeof(WCHAR);
  tgt->Buffer = (PWCHAR) buf;
  sys_mbstowcs (buf, srcstr, tgt->MaximumLength);
}

#define _SHARED         (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
#define _CASE_SENSITIVE (0)

/* NT Create CreateDisposition values */
#define FILE_SUPERSEDE				(0)
#define FILE_OPEN				(1)
#define FILE_CREATE				(2)
#define FILE_OPEN_IF				(3)
#define FILE_OVERWRITE				(4)
#define FILE_OVERWRITE_IF			(5)
/* NT Create CreateOptions bits */
#define FILE_DIRECTORY_FILE			(0x00000001)
#define FILE_WRITE_THROUGH			(0x00000002)
#define FILE_SEQUENTIAL_ONLY			(0x00000004)
#define FILE_NON_DIRECTORY_FILE			(0x00000040)
#define FILE_NO_EA_KNOWLEDGE			(0x00000200)
#define FILE_EIGHT_DOT_THREE_ONLY		(0x00000400)
#define FILE_RANDOM_ACCESS			(0x00000800)
#define FILE_DELETE_ON_CLOSE			(0x00001000)
/* NT Create SecurityFlags bits */
#define SMB_SECURITY_DYNAMIC_TRACKING	        (0x01)
#define SMB_SECURITY_EFFECTIVE_ONLY		(0x02)
/* NT Create CreateAction return values */
#define FILE_SUPERSEDED				(0)
#define FILE_OPENED				(1)
#define FILE_CREATED				(2)
#define FILE_OVERWRITTEN			(3)
#define FILE_EXISTS				(4)
#define FILE_DOES_NOT_EXIST			(5)

#define STATUS_OBJECT_NAME_NOT_FOUND     0xC0000034
#define STATUS_OBJECT_PATH_SYNTAX_BAD    0xC000003B

#define _ACCESS (GENERIC_READ | GENERIC_WRITE)

int main()
{
    UNICODE_STRING dev;
    WCHAR devname[MAX_PATH + 1];
    OBJECT_ATTRIBUTES attr;
    HANDLE h;
    HANDLE hd;
    IO_STATUS_BLOCK io;
    NTSTATUS status;

    /*
     * Create /cygdrive/c/makefile
     */
    str2buf2uni (&dev, devname, "\\??\\C:\\makefile");
    InitializeObjectAttributes (&attr, &dev, _CASE_SENSITIVE, NULL, NULL);

    status = ZwCreateFile (&h, _ACCESS, &attr, &io, NULL, FILE_ATTRIBUTE_NORMAL,
                           _SHARED, FILE_OPEN_IF, FILE_NON_DIRECTORY_FILE,
                           NULL, 0);

    if (!NT_SUCCESS (status))
    {
        printf("ERROR: %08lx (%08lx, %08lx)\n",
               status, io.Status, io.Information);
        return 1;
    }

    if (!h)
    {
        printf("ERROR: no handle\n");
        return 1;
    }

    status = ZwClose (h);

    if (!NT_SUCCESS (status))
    {
        printf("ERROR: %08lx\n", status);
        return 1;
    }

    /*
     * Create /cygdrive/c/Makefile
     */
    str2buf2uni (&dev, devname, "\\??\\C:\\Makefile");
    InitializeObjectAttributes (&attr, &dev, _CASE_SENSITIVE, NULL, NULL);

    status = ZwCreateFile (&h, _ACCESS, &attr, &io, NULL, FILE_ATTRIBUTE_NORMAL,
                           _SHARED, FILE_OPEN_IF, FILE_NON_DIRECTORY_FILE,
                           NULL, 0);

    if (!NT_SUCCESS (status))
    {
        printf("ERROR: %08lx (%08lx, %08lx)\n",
               status, io.Status, io.Information);
        return 1;
    }

    if (!h)
    {
        printf("ERROR: no handle\n");
        return 1;
    }

    status = ZwClose (h);

    if (!NT_SUCCESS (status))
    {
        printf("ERROR: %08lx\n", status);
        return 1;
    }

    return 0;
}