def main(dest_name, hops):
try:
dest_addr = socket.gethostbyname(dest_name)
except socket.gaierror:
print('Invalid domain name or connection')
return
port = 5000
max_hops = hops
icmp = socket.getprotobyname('icmp')
udp = socket.getprotobyname('udp')
ttl = 1
print('#\t' + Formatter(150, 'host name', 'host address', 'AS', 'country',
'provider').get_string(),
end='\n\n')
while True:
recv_socket = socket.socket(socket.AF_INET, socket.SOCK_RAW, icmp)
send_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, udp)
send_socket.setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
timeout = struct.pack("ll", 1, 0)
recv_socket.setsockopt(socket.SOL_SOCKET, socket.SO_RCVTIMEO, timeout)
recv_socket.bind(("", port))
print(f"{ttl}", end='\t')
send_socket.sendto(b"", (dest_name, port))
curr_addr = None
curr_name = None
finished = False
tries = 3
while not finished and tries > 0:
try:
_, curr_addr = recv_socket.recvfrom(512)
finished = True
curr_addr = curr_addr[0]
try:
curr_name = socket.gethostbyaddr(curr_addr)[0]
except socket.error:
curr_name = curr_addr
except socket.error:
tries = tries - 1
print("*", end=' ')
send_socket.close()
recv_socket.close()
if not finished:
pass
if curr_addr is not None:
ripe_data = get_data_by_ip(curr_addr)
formatted_str = Formatter(150, curr_name, curr_addr, ripe_data.as_,
ripe_data.country, ripe_data.provider)
curr_host = formatted_str.get_string()
else:
curr_host = ""
print(f"{curr_host}\n")
ttl += 1
if curr_addr == dest_addr or ttl > max_hops:
break
