Remove redundant 'proto=port.protocol' from comm.lua calls

scripts/daytime.nse

@@ -21,7 +21,7 @@ categories = {"discovery", "safe"}
 portrule = shortport.port_or_service(13, "daytime", {"tcp", "udp"})
 
 action = function(host, port)
-  local status, result = comm.exchange(host, port, "dummy", {lines=1, proto=port.protocol})
+  local status, result = comm.exchange(host, port, "dummy", {lines=1})
 
   if status then
     return result

scripts/finger.nse

@@ -33,5 +33,5 @@ action = function(host, port)
   local try = nmap.new_try()
 
   return try(comm.exchange(host, port, "\r\n",
-    {lines=100, proto=port.protocol, timeout=5000}))
+    {lines=100, timeout=5000}))
 end

scripts/iax2-version.nse

@@ -29,7 +29,7 @@ action = function(host, port)
   -- see http://www.cornfed.com/iax.pdf for all options.
   local poke = "\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x1e"
 
-  local status, recv = comm.exchange(host, port, poke, {proto=port.protocol,timeout=10000})
+  local status, recv = comm.exchange(host, port, poke, {timeout=10000})
 
   if not status then
     return

scripts/ntp-info.nse

@@ -98,7 +98,7 @@ action = function(host, port)
   local rlreq = string.char(0x16, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
                             0x00, 0x00, 0x00, 0x00)
 
-  status, buftres = comm.exchange(host, port, treq, {proto=port.protocol, timeout=TIMEOUT})
+  status, buftres = comm.exchange(host, port, treq, {timeout=TIMEOUT})
   if status then
     local _, sec, frac, tstamp
 
@@ -111,7 +111,7 @@ action = function(host, port)
     output["receive time stamp"] = stdnse.format_timestamp(tstamp)
   end
 
-  status, bufrlres = comm.exchange(host, port, rlreq, {proto=port.protocol, timeout=TIMEOUT})
+  status, bufrlres = comm.exchange(host, port, rlreq, {timeout=TIMEOUT})
 
   if status then
     -- This only looks at the first fragment of what can possibly be several

scripts/quake1-info.nse

@@ -135,8 +135,7 @@ local function get_player_info(host, port, id)
     id - 1)            -- player number (0 indexed)
   -- iptables -m u32 --u32 '0x1c=0x80000006&&0x1d&0xff=0x03'
 
-  local status, rep_pl = comm.exchange(host, port, req_pl,
-    { proto = port.protocol })
+  local status, rep_pl = comm.exchange(host, port, req_pl)
   assert_w_table(status, "No response to request for player info")
 
   player_info.player_ratio = string.format("%d/%d=%f",
@@ -201,8 +200,7 @@ local function get_server_info(host, port)
     net_protocol_released)     -- net protocol version
   -- iptables -m u32 --u32 '0x1c=0x8000000c&&0x20=0x02515541&&0x24=0x4b450003'
 
-  local status, rep_pl = comm.exchange(host, port, req_pl,
-    { proto = port.protocol })
+  local status, rep_pl = comm.exchange(host, port, req_pl)
   assert_w_table(status, "No response to request for server info")
 
   nmap.set_port_state(host, port, 'open')

scripts/rfc868-time.nse

@@ -25,7 +25,7 @@ categories = {"discovery", "safe", "version"}
 portrule = shortport.version_port_or_service(37, "time", {"tcp", "udp"})
 
 action = function(host, port)
-  local status, result = comm.exchange(host, port, "", {bytes=4, proto=port.protocol})
+  local status, result = comm.exchange(host, port, "", {bytes=4})
 
   if status then
     local _, stamp

scripts/skypev2-version.nse

@@ -48,7 +48,7 @@ action = function(host, port)
   if not result then
     -- Have to send the probe ourselves.
     status, result = comm.exchange(host, port,
-      "GET / HTTP/1.0\r\n\r\n", {bytes=26, proto=port.protocol})
+      "GET / HTTP/1.0\r\n\r\n", {bytes=26})
 
     if (not status) then
       return nil
@@ -62,7 +62,7 @@ action = function(host, port)
   -- So far so good, now see if we get random data for another request
   if not rand then
     status, rand = comm.exchange(host, port,
-      "random data\r\n\r\n", {bytes=15, proto=port.protocol})
+      "random data\r\n\r\n", {bytes=15})
 
     if (not status) then
       return