Tweet
#pragma alloc_text(PAGE, NtOpenFile)
NTSTATUS
NtOpenFile(
__out PHANDLE FileHandle,
__in ACCESS_MASK DesiredAccess,
__in POBJECT_ATTRIBUTES ObjectAttributes,
__out PIO_STATUS_BLOCK IoStatusBlock,
__in ULONG ShareAccess,
__in ULONG OpenOptions
)
/*++
Routine Description:
This service opens a file or a device. It is used to establish a file
handle to the open device/file that can then be used in subsequent
operations to perform I/O operations on.
Arguments:
FileHandle - A pointer to a variable to receive the handle to the open file.
DesiredAccess - Supplies the types of access that the caller would like to
the file.
ObjectAttributes - Supplies the attributes to be used for file object (name,
SECURITY_DESCRIPTOR, etc.)
IoStatusBlock - Specifies the address of the caller's I/O status block.
ShareAccess - Supplies the types of share access that the caller would like
to the file.
OpenOptions - Caller options for how to perform the open.
Return Value:
The function value is the final completion status of the open/create
operation.
--*/
{
//
// Simply invoke the common I/O file creation routine to perform the work.
//
PAGED_CODE();
return IoCreateFile( FileHandle,
DesiredAccess,
ObjectAttributes,
IoStatusBlock,
(PLARGE_INTEGER) NULL,
0L,
ShareAccess,
FILE_OPEN,
OpenOptions,
(PVOID) NULL,
0L,
CreateFileTypeNone,
(PVOID) NULL,
0 );
}
Commentaire