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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
pub mod inprocess;
pub use inprocess::InProcessExecutor;
#[cfg(all(feature = "std", unix))]
pub use inprocess::InProcessForkExecutor;
pub mod timeout;
pub use timeout::TimeoutExecutor;
#[cfg(all(feature = "std", unix))]
pub mod forkserver;
#[cfg(all(feature = "std", unix))]
pub use forkserver::{Forkserver, ForkserverExecutor, OutFile, TimeoutForkserverExecutor};
pub mod combined;
pub use combined::CombinedExecutor;
pub mod shadow;
pub use shadow::ShadowExecutor;
pub mod with_observers;
pub use with_observers::WithObservers;
#[cfg(feature = "std")]
pub mod command;
#[cfg(feature = "std")]
pub use command::CommandExecutor;
use crate::{
inputs::{HasTargetBytes, Input},
observers::ObserversTuple,
Error,
};
use serde::{Deserialize, Serialize};
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ExitKind {
Ok,
Crash,
Oom,
Timeout,
}
pub trait HasObservers<I, OT, S>
where
OT: ObserversTuple<I, S>,
{
fn observers(&self) -> &OT;
fn observers_mut(&mut self) -> &mut OT;
}
pub trait Executor<EM, I, S, Z>
where
I: Input,
{
fn run_target(
&mut self,
fuzzer: &mut Z,
state: &mut S,
mgr: &mut EM,
input: &I,
) -> Result<ExitKind, Error>;
fn with_observers<OT>(self, observers: OT) -> WithObservers<Self, OT>
where
Self: Sized,
OT: ObserversTuple<I, S>,
{
WithObservers::new(self, observers)
}
}
struct NopExecutor {}
impl<EM, I, S, Z> Executor<EM, I, S, Z> for NopExecutor
where
I: Input + HasTargetBytes,
{
fn run_target(
&mut self,
_fuzzer: &mut Z,
_state: &mut S,
_mgr: &mut EM,
input: &I,
) -> Result<ExitKind, Error> {
if input.target_bytes().as_slice().is_empty() {
Err(Error::Empty("Input Empty".into()))
} else {
Ok(ExitKind::Ok)
}
}
}
#[cfg(test)]
mod test {
use super::{Executor, NopExecutor};
use crate::inputs::BytesInput;
#[test]
fn nop_executor() {
let empty_input = BytesInput::new(vec![]);
let nonempty_input = BytesInput::new(vec![1u8]);
let mut executor = NopExecutor {};
assert!(executor
.run_target(&mut (), &mut (), &mut (), &empty_input)
.is_err());
assert!(executor
.run_target(&mut (), &mut (), &mut (), &nonempty_input)
.is_ok());
}
}