Zorya-NEO/lib/util_zlan/init.lua

46 lines
1.1 KiB
Lua

local component = component
local computer = computer
local mt = krequire("net_minitel")
local zlan = {}
--#include "pack.lua"
function zlan.exists(host, file)
local sock = net.open(host, 9900)
sock:w(string.char(2, 1, #file)..file.."x")
local dat = recv_full_pack(sock)
sock:c()
return dat and dat:byte() > 0
end
function zlan.info(host, file)
if (not zlan.exists(host, file)) then return nil, "not found" end
local sock = net.open(host, 9900)
sock:w(string.char(2, 1, #file)..file.."i")
local info = recv_full_pack(sock)
local size = string.char(1) | (string.char(2) << 8) | (string.char(3) << 16)
local nz = string.char(4)
local name = string.sub(5, 5+nz)
local vz = string.char(6+nz)
local ver = string.sub(7+nz, 7+nz+vz)
local format = string.char(8+nz+vz)
sock:c()
return {
size = size,
name = name,
version = version,
format = format
}
end
--Do decoding yourself.
function zlan.download(host, file)
if (not zlan.exists(host, file)) then return nil, "not found" end
local sock = net.open(host, 9900)
sock:w(string.char(2, 1, #file)..file.."d")
local fd = recv_full_pack(sock)
sock:c()
return fd
end
return zlan