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don't respond to NTPv0 packets

master
Miroslav Lichvar 4 years ago
parent
commit
af4bed9262
  1. 2
      src/main.rs

2
src/main.rs

@ -136,7 +136,7 @@ impl NtpPacket { @@ -136,7 +136,7 @@ impl NtpPacket {
let version = (buf[0] >> 3) & 0x7;
let mode = buf[0] & 0x7;
if version > 4 {
if version < 1 || version > 4 {
return Err(Error::new(ErrorKind::Other, "Unsupported version"));
}

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