dns-message-parser 0.2.0

Libary to encode and decode DNS packets
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

mod dns;

mod domain_name;

mod error;
pub use error::EncodeError;

mod question;

mod value;
use value::{encode_ipv4_addr, encode_ipv6_addr, encode_string, encode_u16, encode_u32, encode_u8};

mod resource_record;

#[cfg(test)]
mod tests;

pub type EncodeResult = std::result::Result<(), EncodeError>;

use bytes::BytesMut;

use crate::{AFSDBSubtype, Class, SSHFPAlgorithm, SSHFPType, Type};

use num_traits::ToPrimitive;

impl Type {
    pub fn encode(&self, bytes: &mut BytesMut) -> EncodeResult {
        if let Some(n) = self.to_u16() {
            encode_u16(bytes, n);
            Ok(())
        } else {
            Err(EncodeError::TypeError)
        }
    }
}

impl Class {
    pub fn encode(&self, bytes: &mut BytesMut) -> EncodeResult {
        if let Some(n) = self.to_u16() {
            encode_u16(bytes, n);
            Ok(())
        } else {
            Err(EncodeError::ClassError)
        }
    }
}

impl AFSDBSubtype {
    fn encode(&self, bytes: &mut BytesMut) -> EncodeResult {
        if let Some(n) = self.to_u16() {
            encode_u16(bytes, n);
            Ok(())
        } else {
            Err(EncodeError::AFSDBSubtypeError)
        }
    }
}

impl SSHFPAlgorithm {
    fn encode(&self, bytes: &mut BytesMut) -> EncodeResult {
        if let Some(n) = self.to_u8() {
            encode_u8(bytes, n);
            Ok(())
        } else {
            Err(EncodeError::SSHFPAlgorithmError)
        }
    }
}

impl SSHFPType {
    fn encode(&self, bytes: &mut BytesMut) -> EncodeResult {
        if let Some(n) = self.to_u8() {
            encode_u8(bytes, n);
            Ok(())
        } else {
            Err(EncodeError::SSHFPTypeError)
        }
    }
}