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
use binread::BinRead;
use binwrite::BinWrite;
mod parse;
mod writer;
pub use parse::Sarc;
pub use writer::SarcWriter;
#[derive(Debug, PartialEq)]
pub struct File<'a> {
pub name: Option<&'a str>,
pub data: &'a [u8],
}
const SARC_MAGIC: [char; 4] = ['S', 'A', 'R', 'C'];
const SFAT_MAGIC: [char; 4] = ['S', 'F', 'A', 'T'];
const SFNT_MAGIC: [char; 4] = ['S', 'F', 'N', 'T'];
fn hash_name(multiplier: u32, name: &str) -> u32 {
name.chars()
.fold(0, |hash, c| hash.wrapping_mul(multiplier) + (c as u32))
}
#[derive(Debug, Eq, PartialEq, Copy, Clone, BinRead)]
#[br(repr = u16)]
#[repr(u16)]
pub enum Endian {
Big = 0xFFFE,
Little = 0xFEFF,
}
#[derive(Debug, Eq, PartialEq, Copy, Clone, BinRead, BinWrite)]
struct ResHeader {
magic: [char; 4],
header_size: u16,
bom: Endian,
file_size: u32,
data_offset: u32,
version: u16,
reserved: u16,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq, BinRead, BinWrite)]
struct ResFatHeader {
magic: [char; 4],
header_size: u16,
num_files: u16,
hash_multiplier: u32,
}
#[derive(Debug, PartialEq, Eq, Copy, Clone, BinRead, BinWrite)]
struct ResFatEntry {
name_hash: u32,
rel_name_opt_offset: u32,
data_begin: u32,
data_end: u32,
}
#[derive(Debug, PartialEq, Eq, Copy, Clone, BinRead, BinWrite)]
struct ResFntHeader {
magic: [char; 4],
header_size: u16,
reserved: u16,
}
fn is_valid_alignment(alignment: usize) -> bool {
alignment != 0 && (alignment & (alignment - 1)) == 0
}