Merge pull request #1 from JakobCh/master

Make selfextract actually print out the "bad magic" error, p9k loader.

util/OpenOS/config.d/02_plan9k.lua

@@ -0,0 +1,12 @@
+local cfgadd = ...
+local comp = require("component")
+for fs in comp.list("filesystem") do
+	if comp.invoke(fs, "getLabel") == "Plan9k" and comp.invoke(fs, "exists", "init.lua") then
+		print("Plan9k discovered on "..fs)
+		cfgadd(string.format([[
+menu.add("Plan9k on %s", function()
+	return loadmod("loader_openos")("%s")
+end)
+]], fs:sub(1, 3), fs))
+	end
+end

utils/selfextract.lua

@@ -124,7 +124,7 @@ end
 local lname = ""
 while lname ~= "TRAILER!!!" do
 	local dat = read(22)
-	local e = read_header(dat)
+	local e = assert(read_header(dat))
 	e.name = read(e.namesize)
 	e.pos = seek(e.namesize & 1)
 	seek(e.filesize + (e.filesize & 1))
@@ -143,4 +143,4 @@ for i=1, #tbl do
 	end
 end
 
-error("Init not found.")
+error("Init not found.")