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// Copyright 2021-2022 Vector 35 Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! A basic wrapper around an array of binary data
use binaryninjacore_sys::*;
use std::ptr;
use std::slice;
pub struct DataBuffer(*mut BNDataBuffer);
impl DataBuffer {
pub(crate) fn from_raw(raw: *mut BNDataBuffer) -> Self {
DataBuffer(raw)
}
pub fn get_data(&self) -> &[u8] {
if self.0 == ptr::null_mut() {
// TODO : Change the default value and remove this
return &[];
}
let buffer = unsafe { BNGetDataBufferContents(self.0) };
if buffer.is_null() {
&[]
} else {
unsafe { slice::from_raw_parts(buffer as *const _, self.len()) }
}
}
pub fn len(&self) -> usize {
unsafe { BNGetDataBufferLength(self.0) }
}
// pub fn new(data: ?, len: usize) -> Result<Self> {
// let read_buffer = unsafe { BNCreateDataBuffer(data, len) };
// if read_buffer.is_null() {
// Err(())
// } else {
// Ok(DataBuffer::from_raw(read_buffer))
// }
// }
}
// TODO : delete this
impl Default for DataBuffer {
fn default() -> Self {
DataBuffer::from_raw(ptr::null_mut())
}
}
impl Drop for DataBuffer {
fn drop(&mut self) {
if self.0 != ptr::null_mut() {
unsafe {
BNFreeDataBuffer(self.0);
}
}
}
}
impl Clone for DataBuffer {
fn clone(&self) -> Self {
Self::from_raw(unsafe { BNDuplicateDataBuffer(self.0) })
}
}
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