def main(args):
# Packet encoder
encoder = NdnTlvEncoder(
) if args.format == 'ndntlv' else SimpleStringEncoder
# Generate interest packet
first_interest: Interest = Interest(args.name)
encoded_first_interest = encoder.encode(first_interest)
# Send interest packet
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.settimeout(5)
sock.bind(("0.0.0.0", 0))
try:
resolved_hostname = socket.gethostbyname(args.ip)
except:
print("Resolution of hostname failed.")
sys.exit(-2)
sock.sendto(encoded_first_interest, (resolved_hostname, args.port))
# Receive content object
try:
wire_packet_first, addr = sock.recvfrom(8192)
except:
print("Timeout.")
sys.exit(-1)
# Wait
time_to_wait = int(encoder.decode_data(wire_packet_first)[1])
print("Waiting for result: " + str(time_to_wait))
time.sleep(time_to_wait * 1.2)
# Send second interest
new_components = args.name.split("/")[1:-1]
new_components.append("resultpNFN")
new_name = "/" + '/'.join(new_components)
second_interest: Interest = Interest(new_name)
encoded_second_interest = encoder.encode(second_interest)
sock.sendto(encoded_second_interest, (resolved_hostname, args.port))
# Receive result
try:
wire_packet_second, addr = sock.recvfrom(8192)
except:
print("Timeout.")
sys.exit(-1)
# Print
if args.plain is False:
printer = NdnTlvPrinter(wire_packet_second)
printer.formatted_print()
else:
encoder = NdnTlvEncoder()
if encoder.is_content(wire_packet_second):
sys.stdout.buffer.write(
encoder.decode_data(wire_packet_second)[1] + b"\n")
else:
sys.exit(-2)
def main(args):
# Packet encoder
encoder = NdnTlvEncoder(
) if args.format == 'ndntlv' else SimpleStringEncoder()
# Generate interest packet
interest: Interest = Interest(args.name)
encoded_interest = encoder.encode(interest)
# Send interest packet
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.settimeout(args.timeout)
sock.bind(("0.0.0.0", 0))
try:
resolved_hostname = socket.gethostbyname(args.ip)
except:
print("Resolution of hostname failed.")
sys.exit(-2)
sock.sendto(encoded_interest, (resolved_hostname, args.port))
# Receive content object
try:
wire_packet, addr = sock.recvfrom(8192)
except:
print("Timeout.")
sys.exit(-1)
# Print
if args.plain is False:
printer = NdnTlvPrinter(wire_packet)
printer.formatted_print()
else:
encoder = NdnTlvEncoder()
if encoder.is_content(wire_packet):
sys.stdout.buffer.write(encoder.decode_data(wire_packet)[1])
else:
sys.exit(-2)