84 lines
1.8 KiB
Python
Executable file
84 lines
1.8 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# SPDX-License-Identifier: GPL-2.0
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#
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import sys, os, os.path, getopt
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import socket, time
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import subprocess
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import select
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def read(sock, n):
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buf = b''
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while len(buf) < n:
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rem = n - len(buf)
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try: s = sock.recv(rem)
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except (socket.error) as e: return b''
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buf += s
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return buf
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def send(sock, s):
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total = len(s)
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count = 0
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while count < total:
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try: n = sock.send(s)
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except (socket.error) as e: n = 0
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if n == 0:
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return count;
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count += n
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return count
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SERVER_PORT = 12877
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MAX_PORTS = 2
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serverPort = SERVER_PORT
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serverSocket = None
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HostName = socket.gethostname()
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# create passive socket
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serverSocket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
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host = socket.gethostname()
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try: serverSocket.bind((host, 0))
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except socket.error as msg:
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print('bind fails: ' + str(msg))
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sn = serverSocket.getsockname()
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serverPort = sn[1]
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cmdStr = ("./tcp_client.py %d &") % (serverPort)
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os.system(cmdStr)
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buf = b''
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n = 0
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while n < 500:
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buf += b'.'
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n += 1
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serverSocket.listen(MAX_PORTS)
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readList = [serverSocket]
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while True:
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readyRead, readyWrite, inError = \
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select.select(readList, [], [], 2)
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if len(readyRead) > 0:
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waitCount = 0
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for sock in readyRead:
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if sock == serverSocket:
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(clientSocket, address) = serverSocket.accept()
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address = str(address[0])
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readList.append(clientSocket)
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else:
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sock.settimeout(1);
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s = read(sock, 1000)
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n = send(sock, buf)
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sock.close()
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serverSocket.close()
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sys.exit(0)
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else:
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print('Select timeout!')
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sys.exit(1)
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