diff --git a/core-foundation-sys/src/data.rs b/core-foundation-sys/src/data.rs
index e5ed0dc..044e557 100644
--- a/core-foundation-sys/src/data.rs
+++ b/core-foundation-sys/src/data.rs
@@ -8,31 +8,34 @@
 // except according to those terms.
 
 use std::os::raw::c_void;
-
-use base::{CFAllocatorRef, CFTypeID, CFIndex, CFRange};
+use base::{CFAllocatorRef, CFTypeID, CFIndex, CFRange, CFOptionFlags};
 
 #[repr(C)]
 pub struct __CFData(c_void);
 
 pub type CFDataRef = *const __CFData;
+pub type CFDataSearchFlags = CFOptionFlags;
+
+// typedef CF_OPTIONS(CFOptionFlags, CFDataSearchFlags)
+pub const kCFDataSearchBackwards: CFDataSearchFlags = 1usize << 0;
+pub const kCFDataSearchAnchored: CFDataSearchFlags = 1usize << 1;
 
 extern {
     /*
      * CFData.h
      */
 
-    pub fn CFDataCreate(allocator: CFAllocatorRef,
-                        bytes: *const u8, length: CFIndex) -> CFDataRef;
-    //fn CFDataFind
+    /* Creating a CFData Object */
+    pub fn CFDataCreate(allocator: CFAllocatorRef, bytes: *const u8, length: CFIndex) -> CFDataRef;
+    pub fn CFDataCreateCopy(allocator: CFAllocatorRef, theData: CFDataRef) -> CFDataRef;
+    pub fn CFDataCreateWithBytesNoCopy(allocator: CFAllocatorRef, bytes: *const u8, length: CFIndex, bytesDeallocator: CFAllocatorRef) -> CFDataRef;
+
+    /* Examining a CFData Object */
     pub fn CFDataGetBytePtr(theData: CFDataRef) -> *const u8;
     pub fn CFDataGetBytes(theData: CFDataRef, range: CFRange, buffer: *mut u8);
     pub fn CFDataGetLength(theData: CFDataRef) -> CFIndex;
-    pub fn CFDataCreateWithBytesNoCopy(
-        allocator: CFAllocatorRef,
-        bytes: *const u8,
-        length: CFIndex,
-        allocator: CFAllocatorRef,
-    ) -> CFDataRef;
+    pub fn CFDataFind(theData: CFDataRef, dataToFind: CFDataRef, searchRange: CFRange, compareOptions: CFDataSearchFlags) -> CFRange;
 
+    /* Getting the CFData Type ID */
     pub fn CFDataGetTypeID() -> CFTypeID;
 }