panda-re 0.49.0

The official library for interfacing with PANDA (Platform for Architecture-Neutral Dynamic Analysis)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102

//! glib wrappers for supporting glib-based plugins

use glib_sys::{g_array_free, g_free, g_malloc, gpointer, GArray};
use std::marker::PhantomData;
use std::mem::size_of;
use std::ops::{Deref, DerefMut};

use std::ptr::NonNull;

/// An owned glib-allocated value that will be freed using glib's allocator on drop.
#[repr(transparent)]
pub struct GBox<T>(NonNull<T>);

impl<T: Sized> GBox<T> {
    pub fn new(val: T) -> Self {
        unsafe {
            let ptr = g_malloc(size_of::<T>());
            if !ptr.is_null() {
                *(ptr as *mut T) = val;
            }
            Self(NonNull::new(ptr as *mut T).unwrap())
        }
    }

    pub fn as_ptr(&self) -> *const T {
        self.0.as_ptr()
    }
}

impl<T> Deref for GBox<T> {
    type Target = T;

    fn deref(&self) -> &Self::Target {
        unsafe { self.0.as_ref() }
    }
}

impl<T> DerefMut for GBox<T> {
    fn deref_mut(&mut self) -> &mut Self::Target {
        unsafe { self.0.as_mut() }
    }
}

impl<T> Drop for GBox<T> {
    fn drop(&mut self) {
        unsafe {
            g_free(self.0.as_ptr() as gpointer);
        }
    }
}

#[repr(transparent)]
pub struct GBoxedSlice<T>(pub *mut GArray, PhantomData<T>);

impl<T> GBoxedSlice<T> {
    pub fn is_null(&self) -> bool {
        self.0.is_null()
    }
}

impl<T> Deref for GBoxedSlice<T> {
    type Target = [T];

    fn deref(&self) -> &Self::Target {
        if self.0.is_null() {
            panic!("Invalid GBoxedSlice: null");
        } else {
            let g_array = unsafe { &*self.0 };

            if g_array.data.is_null() {
                &[]
            } else {
                unsafe { std::slice::from_raw_parts(g_array.data as _, g_array.len as usize) }
            }
        }
    }
}

impl<T> DerefMut for GBoxedSlice<T> {
    fn deref_mut(&mut self) -> &mut Self::Target {
        if self.0.is_null() {
            panic!("Invalid GBoxedSlice: null");
        }
        let g_array = unsafe { &mut *self.0 };

        if g_array.data.is_null() {
            &mut []
        } else {
            unsafe { std::slice::from_raw_parts_mut(g_array.data as *mut T, g_array.len as usize) }
        }
    }
}

impl<T> Drop for GBoxedSlice<T> {
    fn drop(&mut self) {
        if !self.0.is_null() {
            unsafe {
                g_array_free(self.0, true as _);
            }
        }
    }
}