Function cymrust::cymru_asn [−] [src]

pub fn cymru_asn<I: Into<AsNumber>>(asn: I) -> Result<Vec<CymruASN>, String>

Resolve information about AS number using DNS

This function queries (Cymru's IP-to-ASN)[https://www.team-cymru.org/IP-ASN-mapping.html] service and returns information Cymru knows about given AS number.

No caching is performed by this function.

Errors

If DNS resolver fails or there's error in DNS query, the error is returned as String