From 8adb23d04e42c5ecff4cdb1986f45fb8af55e613 Mon Sep 17 00:00:00 2001
From: cheapie <no-email-for-you@example.com>
Date: Mon, 30 Jan 2017 20:07:00 -0600
Subject: Add content

---
 init.lua | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 init.lua

(limited to 'init.lua')

diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..162e98f
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,80 @@
+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)
+	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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