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# Test when client does a TCP RST on an open connection
import struct, time, socket, select
PORT = 8000
def convert_poll_list(l):
# To be compatible across all ports/targets
return [ev for _, ev in l]
# Server
def instance0():
multitest.globals(IP=multitest.get_network_ip())
s = socket.socket()
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
s.listen(1)
multitest.next()
s2, _ = s.accept()
s2.setblocking(False)
poll = select.poll()
poll.register(s2, select.POLLIN)
time.sleep(0.4)
print(convert_poll_list(poll.poll(1000)))
# TODO: the following recv don't work with lwip, it abandons data upon TCP RST
try:
print(s2.recv(10))
print(convert_poll_list(poll.poll(1000)))
print(s2.recv(10))
print(convert_poll_list(poll.poll(1000)))
print(s2.recv(10))
print(convert_poll_list(poll.poll(1000)))
except OSError as er:
print(er.args[0])
print(convert_poll_list(poll.poll(1000)))
# TODO lwip raises here but apparently it shouldn't
print(s2.recv(10))
print(convert_poll_list(poll.poll(1000)))
s.close()
# Client
def instance1():
if not hasattr(socket, "SO_LINGER"):
multitest.skip()
multitest.next()
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
lgr_onoff = 1
lgr_linger = 0
s.setsockopt(socket.SOL_SOCKET, socket.SO_LINGER, struct.pack("ii", lgr_onoff, lgr_linger))
s.send(b"GET / HTTP/1.0\r\n\r\n")
time.sleep(0.2)
s.close() # This issues a TCP RST since we've set the linger option
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