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Réseau L2 Info : Socket en Python 3
Client UDP
#!/usr/bin/python3 import sys import socket HOST = 'time-c.nist.gov' PORT = 13 # daytime s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.sendto(b'', (HOST,PORT)) d = s.recvfrom(1024) reply = d[0] addr = d[1] print 'Server reply : ' + reply s.close() print ('Received', data)
Client TCP
#!/usr/bin/python3 import sys import socket HOST = 'www.labri.fr' PORT = 80 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((HOST, PORT)) s.sendall(b'GET /\r\n\r\n') data = s.recv(1024) s.close() print ('Received', data)
Serveur UDP
Voici un echo server en version UDP…
#!/usr/bin/python3 import socket import sys HOST = '' # Symbolic name meaning all available interfaces PORT = 7777 # Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # ipv4 only # s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM) # ipv4/ipv6 s.bind((HOST, PORT)) while True: reply, addr = s.recvfrom(1500) # if len(reply) == 0: break print (reply) s.sendto(reply, addr)
client ipv4/udp:
nc -4 -u localhost 7777
Serveur TCP
Voici un echo server en version TCP…
# Echo server program import socket HOST = '' # Symbolic name meaning all available interfaces PORT = 50007 # Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((HOST, PORT)) s.listen(1) conn, addr = s.accept() with conn: print('Connected by', addr) while True: data = conn.recv(1024) if not data: break conn.sendall(data)
Documentation
rx3/index.1490347416.txt.gz · Last modified: 2024/03/18 15:05 (external edit)