esp-idf/examples/protocols/sockets/scripts/tcpserver.py

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2018-10-02 10:33:16 -04:00
# This example code is in the Public Domain (or CC0 licensed, at your option.)
# Unless required by applicable law or agreed to in writing, this
# software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, either express or implied.
# -*- coding: utf-8 -*-
import socket
import sys
# ----------- Config ----------
IP_VERSION = 'IPv4'
PORT = 3333;
# -------------------------------
if IP_VERSION == 'IPv4':
family_addr = socket.AF_INET
elif IP_VERSION == 'IPv6':
family_addr = socket.AF_INET6
else:
print('IP_VERSION must be IPv4 or IPv6')
sys.exit(1)
try:
sock = socket.socket(family_addr, socket.SOCK_STREAM)
except socket.error as msg:
print('Error: ' + str(msg[0]) + ': ' + msg[1])
sys.exit(1)
print('Socket created')
try:
sock.bind(('', PORT))
print('Socket binded')
sock.listen(1)
print('Socket listening')
conn, addr = sock.accept()
print('Connected by', addr)
except socket.error as msg:
print('Error: ' + str(msg[0]) + ': ' + msg[1])
sock.close()
sys.exit(1)
while True:
data = conn.recv(128)
if not data: break
data = data.decode()
print('Received data: ' + data)
reply = 'OK: ' + data
conn.send(reply.encode())
conn.close()