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handle "Invalid argument" ConnectionException as host is down (e.g. invalid IPv6 address)

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This commit is contained in:
Anton Keks 2021-02-15 20:46:46 +02:00
parent ee06f96278
commit e4e5c36577
1 changed files with 9 additions and 10 deletions
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19
src/net/azib/ipscan/core/net/TCPPinger.java
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@ -73,16 +73,15 @@ public class TCPPinger implements Pinger {
// we've got an RST packet from the host - it is alive
success(result, startTime);
}
else
// this should result in NoRouteToHostException or ConnectException, but not all Java implementation respect that
if (e instanceof NoRouteToHostException || msg.contains(/*No*/"route to host") || msg.contains(/*Host is*/"down") || msg.contains(/*Network*/"unreachable") || msg.contains(/*Socket*/"closed")) {
// host is down
break;
}
else {
// something unknown
LOG.log(INFO, subject.toString(), e);
}
// this should result in NoRouteToHostException or ConnectException, but not all Java implementation respect that
else if (e instanceof NoRouteToHostException || msg.contains(/*No*/"route to host") || msg.contains(/*Host is*/"down") || msg.contains(/*Network*/"unreachable") || msg.contains(/*Socket*/"closed") || msg.contains("Invalid argument")) {
// host is down
break;
}
else {
// something unknown
LOG.log(INFO, subject.toString(), e);
}
}
finally {
closeQuietly(socket);