"
Tweaked to allow querying for multiple ASNs:
Code Select
import socket
import re
## https://tools.ietf.org/html/rfc3912
def whois_request(domain, server, port=43):
_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
_sock.connect((server, port))
_sock.send("%s\r\n" % domain)
_result = ""
while True:
_data = _sock.recv(1024)
if not _data:
break
_result += _data
return _result
def get_AS(AS,IPV4=True,IPV6=True):
## sanitize ASN
_asn = re.search("(?:AS)?(\d{1,10})",AS,re.IGNORECASE)
if not _asn:
return ""
_asn = "AS{0}".format(_asn.group(1))
is6 = ""
if IPV6:
is6 = "[6]?" if IPV4 else "6"
_raw = whois_request("-i origin {0}".format(_asn),"whois.radb.net")
if _raw:
_ips= re.findall("^route{0}:\s+(.*?)$".format(is6),_raw,re.MULTILINE)
return "\n".join(_ips)
return ""
if __name__ == "__main__":
import sys
if len(sys.argv) > 1:
for i in range(1,len(sys.argv)):
AS=sys.argv[i]
print get_AS(AS,IPV6=False)
else:
print "Usage:",sys.argv[0],"as32934"
