fix invalid msg crashing socket

sys/apis/config.lua

@@ -20,6 +20,8 @@ function Config.load(fname, data)
 
 		Util.merge(data, contents)
 	end
+
+	return data
 end
 
 function Config.loadWithCheck(fname, data)
@@ -36,7 +38,7 @@ function Config.loadWithCheck(fname, data)
 		shell.run('edit ' .. filename)
 	end
 
-	Config.load(fname, data)
+	return Config.load(fname, data)
 end
 
 function Config.update(fname, data)

sys/apis/socket.lua

@@ -183,7 +183,7 @@ function Socket.server(port)
 		local _, _, sport, dport, msg = os.pullEvent('modem_message')
 
 		if sport == port and
-			 msg and
+			 msg and type(msg) == 'table' and
 			 msg.dhost == os.getComputerID() and
 			 msg.type == 'OPEN' then
 

sys/apps/PackageManager.lua

@@ -3,7 +3,6 @@ _G.requireInjector(_ENV)
 local Ansi     = require('ansi')
 local Packages = require('packages')
 local UI       = require('ui')
-local Util     = require('util')
 
 local colors   = _G.colors
 local shell    = _ENV.shell
@@ -75,7 +74,7 @@ end
 function page:run(operation, name)
 	local oterm = term.redirect(self.action.output.win)
 	self.action.output:clear()
-	local cmd = string.format('Package %s %s', operation, name)
+	local cmd = string.format('package %s %s', operation, name)
 	--for _ = 1, 3 do
 	--	print(cmd .. '\n')
 	--	os.sleep(1)