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igmp: centisecs are really decisecs

This commit is contained in:
Dario Nieuwenhuis 2020-10-21 20:32:47 +02:00 committed by whitequark
parent 1ae400acaa
commit bc1f718589
1 changed files with 7 additions and 7 deletions
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14
src/wire/igmp.rs
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@ -289,22 +289,22 @@ impl Repr {
fn max_resp_code_to_duration(value: u8) -> Duration {
let value: u64 = value.into();
let centisecs = if value < 128 {
let decisecs = if value < 128 {
value
} else {
let mant = value & 0xF;
let exp = (value >> 4) & 0x7;
(mant | 0x10) << (exp + 3)
};
Duration::from_millis(centisecs * 100)
Duration::from_millis(decisecs * 100)
}
fn duration_to_max_resp_code(duration: Duration) -> u8 {
let centisecs = duration.total_millis() / 100;
if centisecs < 128 {
centisecs as u8
} else if centisecs < 31744 {
let mut mant = centisecs >> 3;
let decisecs = duration.total_millis() / 100;
if decisecs < 128 {
decisecs as u8
} else if decisecs < 31744 {
let mut mant = decisecs >> 3;
let mut exp = 0u8;
while mant > 0x1F && exp < 0x8 {
mant >>= 1;