hatter/simple-rust-tests
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add get_2bytes

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Hatter Jiang
2020-06-27 21:23:10 +08:00
parent 67787c3399
commit 3e7d62bdcf
1 changed files with 13 additions and 2 deletions
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15
flatbuffers/src/main.rs
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@@ -28,12 +28,23 @@ fn main() {
println!("Monster hp: {}", monster_2.hp()); println!("Monster hp: {}", monster_2.hp());
println!("Monster name: {:?}", monster_2.name()); println!("Monster name: {:?}", monster_2.name());
let offset_to_body = i32::from_le_bytes(get_4bytes(&buff)); let offset_to_body = u32::from_le_bytes(get_4bytes(&buff));
println!("Offset to body : {:>4}, hex: {}", offset_to_body, hex::encode(&get_4bytes(&buff))); println!("Offset to body : {:>4}, hex: {}", offset_to_body, hex::encode(&get_4bytes(&buff)));
let xx = &buff[4..offset_to_body as usize]; let xx = &buff[4..offset_to_body as usize];
println!("{}", hex::encode(xx)); println!("{}", hex::encode(xx));
let offset_to_vtable = i32::from_le_bytes(get_4bytes(&buff[offset_to_body as usize..])); let offset_to_vtable = u32::from_le_bytes(get_4bytes(&buff[offset_to_body as usize..]));
println!("Offset to vtable: {:>4}, hex: {}", offset_to_vtable, hex::encode(get_4bytes(&buff[offset_to_body as usize..]))); println!("Offset to vtable: {:>4}, hex: {}", offset_to_vtable, hex::encode(get_4bytes(&buff[offset_to_body as usize..])));
let a1 = u16::from_le_bytes(get_2bytes(&buff[offset_to_body as usize..]));
let a2 = u16::from_le_bytes(get_2bytes(&buff[(offset_to_body + 2) as usize..]));
println!("a1: {}, a2: {}", a1, a2);
}
fn get_2bytes(buff: &[u8]) -> [u8; 2] {
let mut ret = [0_u8; 2];
ret[0] = buff[0];
ret[1] = buff[1];
ret
} }
fn get_4bytes(buff: &[u8]) -> [u8; 4] { fn get_4bytes(buff: &[u8]) -> [u8; 4] {