/
connect.py
51 lines (45 loc) · 1.5 KB
/
connect.py
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from re import S
import socket
import select
import errno
import os
remote_addr = '85.25.41.144'
base_port = 1024
nports = 500
nchildren = 120
def connect_socket(port):
return s
def main(base_port, nports):
listen_port_range = range(base_port, base_port + nports)
connect_sockets = []
print(f"# connecting {nports} ports starting from {base_port}")
for port in listen_port_range:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setblocking(0)
try:
s.connect((remote_addr, port))
except OSError as err:
if err.errno == errno.EINPROGRESS:
connect_sockets.append(s)
else:
print(f"# ERRNO {err.errno} port {port}")
raise err
#print(connect_sockets)
print(f"# connecting {len(connect_sockets)} sockets")
exception_sockets = connect_sockets.copy()
while True:
_, writable, exceptional = select.select([], connect_sockets, exception_sockets)
for s in writable:
if s in connect_sockets:
print(f"# connected socket {s.fileno()}")
connect_sockets.remove(s)
if s in exceptional:
print(f"# socket {s.fileno()} closed")
s.close()
exception_sockets.remove(s)
if __name__ == "__main__":
for i in range(0, nchildren):
newpid = os.fork()
if newpid == 0:
main(base_port + nports * i, nports)
os.wait() # wrong, but who cares