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53 lines
1.4 KiB
Python
53 lines
1.4 KiB
Python
# This example code is in the Public Domain (or CC0 licensed, at your option.)
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# Unless required by applicable law or agreed to in writing, this
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# software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied.
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# -*- coding: utf-8 -*-
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import socket
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import sys
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# ----------- Config ----------
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IP_VERSION = 'IPv4'
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PORT = 3333
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# -------------------------------
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if IP_VERSION == 'IPv4':
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family_addr = socket.AF_INET
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elif IP_VERSION == 'IPv6':
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family_addr = socket.AF_INET6
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else:
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print('IP_VERSION must be IPv4 or IPv6')
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sys.exit(1)
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try:
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sock = socket.socket(family_addr, socket.SOCK_DGRAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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except socket.error as msg:
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print('Failed to create socket. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
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sys.exit()
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try:
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sock.bind(('', PORT))
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except socket.error as msg:
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print('Bind failed. Error: ' + str(msg[0]) + ': ' + msg[1])
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sys.exit()
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while True:
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try:
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print('Waiting for data...')
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data, addr = sock.recvfrom(1024)
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if not data:
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break
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data = data.decode()
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print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + data)
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reply = 'OK ' + data
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sock.sendto(reply.encode(), addr)
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except socket.error as msg:
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print('Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
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sock.close()
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