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
|
use yaxpeax_arch::{AddressBase, Arch, Decoder, Instruction, LengthedInstruction};
use clap::*;
use num_traits::identities::Zero;
use std::fmt;
use std::fs::File;
use std::io::Read;
fn main() {
let _ = include_str!("../Cargo.toml");
let app = app_from_crate!()
.arg(
Arg::with_name("arch")
.short("a")
.long("--architecture")
.takes_value(true)
.possible_values(&[
"x86_64", "x86:32", "armv7", "armv8", "avr", "mips", "msp430", "pic17",
"pic18", "m16c",
])
.help("architecture to disassemble input as."),
)
.arg(
Arg::with_name("file")
.short("f")
.long("file")
.takes_value(true)
.help("file of bytes to decode"),
)
.arg(
Arg::with_name("verbose")
.short("v")
.long("--verbose")
.help("increased detail when decoding instructions"),
)
.arg(Arg::with_name("data").help(
"hex bytes to decode by the selected architecture. for example, try -a x86_64 33c0c3",
));
let matches = app.get_matches();
let arch_str = matches.value_of("arch").unwrap_or("x86_64");
let buf: Vec<u8> = match matches.value_of("data") {
Some(data) => match hex::decode(data) {
Ok(buf) => buf,
Err(e) => {
eprintln!("Invalid input, {}. Expected a sequence of bytes as hex", e);
return;
}
},
None => {
let mut v = Vec::new();
match matches.value_of("file") {
Some(name) => match File::open(name) {
Ok(mut f) => {
f.read_to_end(&mut v).expect("can read the file");
v
}
Err(e) => {
eprintln!("error opening {}: {}", name, e);
return;
}
},
None => {
eprintln!("data must be provided by either an argument consisting of hex bytes, or by the --file argument.");
return;
}
}
}
};
let verbose = matches.occurrences_of("verbose") > 0;
match arch_str {
"x86_64" => decode_input::<yaxpeax_x86::long_mode::Arch>(&buf, verbose),
"x86:32" => decode_input::<yaxpeax_x86::protected_mode::Arch>(&buf, verbose),
"avr" => decode_input::<yaxpeax_avr::AVR>(&buf, verbose),
"armv7" => decode_input::<yaxpeax_arm::armv7::ARMv7>(&buf, verbose),
"armv8" => decode_input::<yaxpeax_arm::armv8::a64::ARMv8>(&buf, verbose),
"mips" => decode_input::<yaxpeax_mips::MIPS>(&buf, verbose),
"msp430" => decode_input::<yaxpeax_msp430::MSP430>(&buf, verbose),
"pic17" => decode_input::<yaxpeax_pic17::PIC17>(&buf, verbose),
"pic18" => decode_input::<yaxpeax_pic18::PIC18>(&buf, verbose),
"m16c" => decode_input::<yaxpeax_m16c::M16C>(&buf, verbose),
// "pic24" => decode_input::<yaxpeax_pic24::PIC24>(buf),
other => {
println!("unsupported architecture: {}", other);
}
}
}
fn decode_input<A: Arch>(buf: &[u8], verbose: bool)
where
A::Instruction: fmt::Display,
{
let decoder = A::Decoder::default();
let start = A::Address::zero();
let mut addr = start;
loop {
match decoder.decode(buf[addr.to_linear()..].iter().cloned()) {
Ok(inst) => {
println!(
"{:#010x}: {:14}: {}",
addr.to_linear(),
hex::encode(
&buf[addr.to_linear()..]
[..A::Address::zero().wrapping_offset(inst.len()).to_linear()]
),
inst
);
if verbose {
println!(" {:?}", inst);
if !inst.well_defined() {
println!(" not well-defined");
}
}
addr += inst.len();
}
Err(e) => {
println!("{:#010x}: {}", addr.to_linear(), e);
addr += A::Instruction::min_size();
}
}
if addr.to_linear() >= buf.len() {
break;
}
}
}
|
