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Note and be strict about limits of comm.lua with UDP

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dmiller
2024-06-03 19:00:31 +00:00
parent cf445db7b9
commit af1b9543f9
1 changed files with 6 additions and 1 deletions
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7
nselib/comm.lua
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@@ -201,7 +201,7 @@ end
-- --
-- Possible options: -- Possible options:
-- timeout, connect_timeout, request_timeout: See module documentation -- timeout, connect_timeout, request_timeout: See module documentation
-- recv_before: receive data before sending first payload -- recv_before: receive data before sending first payload (not valid for "udp")
-- proto: the protocol to use ("tcp", "udp", or "ssl") -- proto: the protocol to use ("tcp", "udp", or "ssl")
-- --
-- @param host The destination host IP -- @param host The destination host IP
@@ -214,6 +214,11 @@ end
-- of the first receive (before sending data) -- of the first receive (before sending data)
function opencon(host, port, data, opts) function opencon(host, port, data, opts)
opts = opts or {} opts = opts or {}
local proto = opts.proto or (type(port) == 'table' and port.protocol)
if proto == "udp" then
assert(not opts.recv_before, "opts.recv_before not compatible with UDP.")
assert(data, "opencon with UDP requires a data payload.")
end
local status, sd = setup_connect(host, port, opts) local status, sd = setup_connect(host, port, opts)
if not status then if not status then
return oops.raise("Failed to connect", false, sd) return oops.raise("Failed to connect", false, sd)