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math.randomseed(os.time())
local function tempname()
local name = "/tmp/das-"
name = name..math.random(1000,9999)
return(name)
end
local on_digiline_receive = function (pos, node, channel, msg)
local meta = minetest.get_meta(pos)
local setchan = meta:get_string("channel")
local dev = meta:get_string("device")
local intemp = tempname()
local outtemp = tempname()
local ret = {}
local sendlen = 0
if channel ~= setchan then return end
if type(msg) ~= "table" then return end
local cdb = ""
for i=1,string.len(msg.cdb),1 do
local byte = string.sub(msg.cdb,i,i)
cdb = string.format("%s %02X",cdb,string.byte(byte))
end
local cmd = "sudo sg_raw -vvvR "..dev..cdb
if msg.request then
cmd = cmd.." -r "..msg.request.." -o "..intemp
end
if msg.data then
sendlen = string.len(msg.data)
local outfile = io.open(outtemp,"w")
outfile:write(msg.data)
outfile:close()
cmd = cmd.." -s "..sendlen.." -i "..outtemp
end
print(cmd)
ret.sk = os.execute(cmd)
if msg.request then
local infile = io.open(intemp,"r")
if infile then
local indata = infile:read("*all")
infile:close()
os.execute("sudo rm "..intemp)
ret.data = indata
end
end
if msg.data then
os.execute("sudo rm "..outtemp)
end
digiline:receptor_send(pos, digiline.rules.default, channel, ret)
end
minetest.register_node("das:scsi_gateway", {
tiles = {
"das_logo.png"
},
digiline =
{
receptor = {},
effector = {action = on_digiline_receive}
},
groups = {cracky=2},
description = "DAS<->SCSI Gateway",
on_construct = function(pos)
local meta = minetest.get_meta(pos)
meta:set_string("formspec","size[8,4;]field[1,1;6,2;channel;Channel;${channel}]field[1,2;6,2;device;Device;${device}]button_exit[2.25,3;3,1;submit;Save]")
meta:set_string("device","/dev/sda")
meta:set_string("channel","scsi")
end,
on_receive_fields = function(pos, formname, fields, sender)
local name = sender:get_player_name()
if minetest.is_protected(pos,name) and not minetest.check_player_privs(name,{protection_bypass=true}) then
minetest.record_protection_violation(pos,name)
return
end
local meta = minetest.get_meta(pos)
if fields.channel then meta:set_string("channel",fields.channel) end
if fields.device then meta:set_string("device",fields.device) end
end,
sounds = default.node_sound_stone_defaults()
})
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