local args = {...}
function usage() 
term.setTextColor(colors.red)
print("Usage:")
print("ssh <id> [port]")
print("ssh open [port]")
print("ssh broadcast <message> <id> [port] ")
term.setTextColor(colors.white)
end
if #args < 1 then
usage()
else if #args > 4 then
usage()
else 
if args[1] == "broadcast" then
if #args > 3 then
local server = rednet.lookup(args[3], args[4])
if server then
rednet.broadcast(args[2], args[3])
print("Broadcasted: \"", args[2], "\" to: \"", args[3])
else
print("Error: Secure shell server does not exist!")
end
else
local server = rednet.lookup(args[3], "25674")
if server then
rednet.broadcast(args[2], args[3])
print("Broadcasted: \"", args[2], "\" to: \"", args[3])
else
print("Error Secure shell server does not exist!")
end
end
else
if args[1] == "open" then
local id = os.getComputerID()
if #args == 1 then
print("Trying to open on id: ", id, " Port: 25674")
rednet.open("top")
local ids = tostring(id)
rednet.host(ids, "25674")
else 
print("Trying to open on id: ", id, " Port: ", args[2])
rednet.open("top")
local ids = tostring(id)
rednet.host(ids, args[2])
end
else
if #args == 1 then
print("Trying: ", args[1])
rednet.open("top")
local server = rednet.lookup(args[1], "25674")
if server then
print("Entering secure shell server!")
while true do
local id, rec = rednet.receive(args[1])
print(id, ":", rec)
os.sleep(1)
end
else
print("Error: Secure shell server does not exist!")
end
else if #args == 2 then
print("Trying: ", args[1], " port:", args[2])
rednet.open("top")
local server = rednet.lookup(args[1], args[2])
if server then
print("Entering secure shell server!")
while true do
local id, rec = rednet.receive(args[1])
print(id, ":", rec)
os.sleep(1)
end
else
print("Error: Secure shell server does not exist!")
end
end
end
end
end
end
end