-----------------------------------------------------------------------------
-- TCP sample: Little program to dump lines received at a given port
-- LuaSocket sample files
-- Author: Diego Nehab
-- RCS ID: $Id: listener.lua,v 1.11 2005/01/02 22:44:00 diego Exp $
-----------------------------------------------------------------------------
local socket = require("socket")
host = host or "*"
port = port or 8080
if arg then
	host = arg[1] or host
	port = arg[2] or port
end
print("Binding to host '" ..host.. "' and port " ..port.. "...")
s = assert(socket.bind(host, port))
i, p   = s:getsockname()
assert(i, p)
print("Waiting connection from talker on " .. i .. ":" .. p .. "...")
c = assert(s:accept())
print("Connected. Here is the stuff:")
l, e = c:receive()
while not e do
	print("|"..l)
	l, e = c:receive()
end
print(e)
l = io.read()

---8<----------------------------------------------

-----------------------------------------------------------------------------
-- TCP sample: Little program to send text lines to a given host/port
-- LuaSocket sample files
-- Author: Diego Nehab
-- RCS ID: $Id: talker.lua,v 1.9 2005/01/02 22:44:00 diego Exp $
-----------------------------------------------------------------------------
local socket = require("socket")
host = host or "localhost"
port = port or 8080
if arg then
	host = arg[1] or host
	port = arg[2] or port
end
print("Attempting connection to host '" ..host.. "' and port " ..port.. "...")
c = assert(socket.connect(host, port))
c = assert(socket.connect(host, port))
c = assert(socket.connect(host, port))
c = assert(socket.connect(host, port))


print("Connected! Please type stuff (empty line to stop):")
l = io.read()
while l and l ~= "" and not e do
	assert(c:send(l .. "\n"))
	l = io.read()
end
-- l = io.read()

---8<----------------------------------------------

Microsoft Windows [Version 10.0.22000.556]
(c) Microsoft Corporation. All rights reserved.

C:\Users\dough>netstat -n

Active Connections

  Proto  Local Address          Foreign Address        State
  TCP    127.0.0.1:8080         127.0.0.1:54734        ESTABLISHED
  TCP    127.0.0.1:8080         127.0.0.1:54735        ESTABLISHED
  TCP    127.0.0.1:8080         127.0.0.1:54736        ESTABLISHED
  TCP    127.0.0.1:8080         127.0.0.1:54737        ESTABLISHED
  TCP    127.0.0.1:54734        127.0.0.1:8080         ESTABLISHED
  TCP    127.0.0.1:54735        127.0.0.1:8080         ESTABLISHED
  TCP    127.0.0.1:54736        127.0.0.1:8080         ESTABLISHED
  TCP    127.0.0.1:54737        127.0.0.1:8080         ESTABLISHED

---8<----------------------------------------------

Multipls connections that have been orphaned. 

Binding to host '*' and port 8080...
Waiting connection from talker on 0.0.0.0:8080...
Connected. Here is the stuff:
closed

---8<----------------------------------------------

C:\Users\dough>netstat -n

Active Connections

  Proto  Local Address          Foreign Address        State
  TCP    127.0.0.1:8080         127.0.0.1:54750        ESTABLISHED
  TCP    127.0.0.1:54750        127.0.0.1:8080         ESTABLISHED

Binding to host '*' and port 8080...
Waiting connection from talker on 0.0.0.0:8080...
Connected. Here is the stuff:
|hello
|doug
|how
|are
|you?




Attempting connection to host 'localhost' and port 8080...
Connected! Please type stuff (empty line to stop):
hello
doug
how
are
you?