tools/testing/selftests/bpf/tcp_client.py

   1 #!/usr/bin/env python3
   2 #
   3 # SPDX-License-Identifier: GPL-2.0
   4 #
   5
   6 import sys, os, os.path, getopt
   7 import socket, time
   8 import subprocess
   9 import select
  10
  11 def read(sock, n):
  12     buf = b''
  13     while len(buf) < n:
  14         rem = n - len(buf)
  15         try: s = sock.recv(rem)
  16         except (socket.error) as e: return b''
  17         buf += s
  18     return buf
  19
  20 def send(sock, s):
  21     total = len(s)
  22     count = 0
  23     while count < total:
  24         try: n = sock.send(s)
  25         except (socket.error) as e: n = 0
  26         if n == 0:
  27             return count;
  28         count += n
  29     return count
  30
  31
  32 serverPort = int(sys.argv[1])
  33
  34 # create active socket
  35 sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
  36 try:
  37     sock.connect(('localhost', serverPort))
  38 except socket.error as e:
  39     sys.exit(1)
  40
  41 buf = b''
  42 n = 0
  43 while n < 1000:
  44     buf += b'+'
  45     n += 1
  46
  47 sock.settimeout(1);
  48 n = send(sock, buf)
  49 n = read(sock, 500)
  50 sys.exit(0)