# action can be reflect or drop
action = "drop"
+test = 0
+
+def test_data (data, n_rcvd):
+ n_read = len (data);
+ for i in range(n_read):
+ expected = (n_rcvd + i) & 0xff
+ byte_got = ord (data[i])
+ if (byte_got != expected):
+ print("Difference at byte {}. Expected {} got {}"
+ .format(n_rcvd + i, expected, byte_got))
+ return n_read
def handle_connection (connection, client_address):
print("Received connection from {}".format(repr(client_address)))
+ n_rcvd = 0
try:
while True:
data = connection.recv(4096)
if not data:
break;
+ if (test == 1):
+ n_rcvd += test_data (data, n_rcvd)
if (action != "drop"):
connection.sendall(data)
finally:
if __name__ == "__main__":
if (len(sys.argv)) < 4:
- raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action>]")
- if (len(sys.argv) == 5):
+ raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action> <test>]")
+ if (len(sys.argv) == 6):
action = sys.argv[4]
+ test = int(sys.argv[5])
run (sys.argv[1], sys.argv[2], int(sys.argv[3]))