macho2 0.6.2

A better MachO parser library
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
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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148

use crate::machine::{CpuSubType, CpuType};
use nom::{
    self,
    number::{complete::be_u32, streaming::be_u64},
    IResult,
};
use nom_derive::{Nom, Parse};

#[repr(u32)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Nom)]
pub enum FatMagic {
    Fat = 0xcafebabe,
    Fat64 = 0xcafebabf,
}

#[derive(Debug, Clone, Copy)]
pub struct FatHeader {
    pub magic: FatMagic,
    pub nfat_arch: u32,
}

impl FatHeader {
    pub fn parse(input: &[u8]) -> IResult<&[u8], FatHeader> {
        let (input, magic) = FatMagic::parse_be(input)?;
        let (input, nfat_arch) = be_u32(input)?;

        Ok((input, FatHeader { magic, nfat_arch }))
    }
}

#[derive(Debug, Clone, Copy)]
pub struct FatArch32 {
    pub cputype: CpuType,
    pub cpusubtype: CpuSubType,
    pub offset: u32,
    pub size: u32,
    pub align: u32,
}

impl FatArch32 {
    pub fn parse(input: &[u8]) -> IResult<&[u8], FatArch32> {
        let (input, cputype) = CpuType::parse_be(input)?;
        let (input, cpusubtype) = CpuSubType::parse_be(input, cputype)?;
        let (input, offset) = be_u32(input)?;
        let (input, size) = be_u32(input)?;
        let (input, align) = be_u32(input)?;

        Ok((
            input,
            FatArch32 {
                cputype,
                cpusubtype,
                offset,
                size,
                align,
            },
        ))
    }
}

#[derive(Debug, Clone, Copy)]
pub struct FatArch64 {
    pub cputype: CpuType,
    pub cpusubtype: CpuSubType,
    pub offset: u64,
    pub size: u64,
    pub align: u32,
    pub reserved: u32,
}

impl FatArch64 {
    pub fn parse(input: &[u8]) -> IResult<&[u8], FatArch64> {
        let (input, cputype) = CpuType::parse_be(input)?;
        let (input, cpusubtype) = CpuSubType::parse_be(input, cputype)?;
        let (input, offset) = be_u64(input)?;
        let (input, size) = be_u64(input)?;
        let (input, align) = be_u32(input)?;
        let (input, reserved) = be_u32(input)?;

        Ok((
            input,
            FatArch64 {
                cputype,
                cpusubtype,
                offset,
                size,
                align,
                reserved,
            },
        ))
    }
}

#[derive(Debug, Clone, Copy)]
pub enum FatArch {
    Arch32(FatArch32),
    Arch64(FatArch64),
}

impl FatArch {
    pub fn parse(input: &[u8], magic: FatMagic) -> IResult<&[u8], FatArch> {
        match magic {
            FatMagic::Fat => {
                let (input, arch) = FatArch32::parse(input)?;
                Ok((input, FatArch::Arch32(arch)))
            }
            FatMagic::Fat64 => {
                let (input, arch) = FatArch64::parse(input)?;
                Ok((input, FatArch::Arch64(arch)))
            }
        }
    }

    pub fn cputype(&self) -> CpuType {
        match self {
            FatArch::Arch32(arch) => arch.cputype,
            FatArch::Arch64(arch) => arch.cputype,
        }
    }

    pub fn cpusubtype(&self) -> CpuSubType {
        match self {
            FatArch::Arch32(arch) => arch.cpusubtype,
            FatArch::Arch64(arch) => arch.cpusubtype,
        }
    }

    pub fn offset(&self) -> u64 {
        match self {
            FatArch::Arch32(arch) => arch.offset as u64,
            FatArch::Arch64(arch) => arch.offset,
        }
    }

    pub fn size(&self) -> u64 {
        match self {
            FatArch::Arch32(arch) => arch.size as u64,
            FatArch::Arch64(arch) => arch.size,
        }
    }

    pub fn align(&self) -> u32 {
        match self {
            FatArch::Arch32(arch) => arch.align,
            FatArch::Arch64(arch) => arch.align,
        }
    }
}