sendall() :TCP
recvfrom() :UDP
recvfrom_into() :UDP
sendto() :UDP
'''
HOST = 'localhost'
# HOST = '::1'
PORT = 9999
ADDR = (HOST, PORT)
if __name__ == "__main__":
# s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
# s.settimeout(5)
# s.connect(ADDR)
# print(s.recv(1024).decode('utf-8'))
# for data in [b'Tony', b'Nick', b'Ulysses']:
# s.send(data)
# print(s.recv(1024).decode('utf-8'))
# s.send(b'exit')
# s.close()
s = MySocket()
s.connect(HOST, PORT)
print(s.myreceive(32).decode('utf-8'))
for data in [b'Tony', b'Nick', b'Ulysses']:
print(len(data))
s.mysend(data)
print(s.myreceive(32).decode('utf-8'))
s.mysend(b'exit')
s.close()
def create_connection():
print('create connection')
socket = MySocket()
socket.connect(hostname, port)
connections.append(socket)
expected_messages.append([])
dFiles = None
while True:
if state == "requestServerIP":
# send server's domain to DNS and get its IP
with MySocket(socket.AF_INET, socket.SOCK_DGRAM) as s:
s.dnsQuery("bois.com", DNS_HOST, DNS_PORT)
data = s.recv(1024)
if data.decode() == '-1':
print('Error: Domain not found')
state = "domainNotFound"
else:
server_HOST = data
socketClient = MySocket(socket.AF_INET, socket.SOCK_STREAM)
socketClient.connect((server_HOST, server_PORT))
state = "menu"
# print('Received', data.decode())
elif state == "domainNotFound":
m = str(input("Do you want to try to request the domain to the DNS server again? yes(y) or no(n)\n"))
if m == "y":
state = "requestServerIP"
elif m == "n":
state = "break"
elif state == "menu":
# connect to server
print(MENU)
choice = str(input("\nType your choice's number\n"))
socketClient.send(choice.encode())
import socket
from MySocket import MySocket
from MaxSubArray import maxSubArraySum
if __name__ == "__main__":
IP = "chals3.umdctf.io"
PORT = 6001
SUFFIX = '\n\n'
addtuple = (IP, PORT)
# create an INET, STREAMing socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client = MySocket(s)
client.connect(IP, PORT)
initialMessage = client.myreceive2Suffix(SUFFIX)
print("{}\nMessage : {}".format(initialMessage, len(initialMessage)))
response = "\n".encode()
client.mysend(response)
arr = client.myreceive2Suffix(SUFFIX)
# Before passing the list along we have to clean the data,
# becasue it is a string at this point
print("{}\nArray : {}".format(arr, len(arr)))
newarr = arr.lstrip("[").rstrip("]\n")
listRes = list(newarr.split(", "))
listInts = list(map(int, listRes))
result = maxSubArraySum(listInts, len(listInts))
response = "{}, {}, {}".format(*result).encode()
print("Response is: {} ".format(response.decode()))
