# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1528551240 -7200
# Node ID eae606b9266c3de37c679b4e55912042b322f0df
# Parent  fcf42bd7d067c6dacddc5575a600f985fca323ce
net.dns: Syntesize type names for the full range

Otherwise unknown records are identified as A records. This also fixes
various tracebacks unearthed by previous commits and mis-identified
records.

Related to #1056 #976 #819

diff -r fcf42bd7d067 -r eae606b9266c net/dns.lua
--- a/net/dns.lua	Sat Jun 09 15:35:03 2018 +0200
+++ b/net/dns.lua	Sat Jun 09 15:34:00 2018 +0200
@@ -86,9 +86,10 @@
 end
 
 
-local function augment (t)    -- - - - - - - - - - - - - - - - - - - -  augment
+local function augment (t, prefix)  -- - - - - - - - - - - - - - - - -  augment
 	local a = {};
-	for i,s in pairs(t) do
+	for i = 1, 0xffff do
+		local s = t[i] or ("%s%d"):format(prefix, i);
 		a[i] = s;
 		a[s] = s;
 		a[string.lower(s)] = s;
@@ -119,8 +120,8 @@
 dns.classes = { 'IN', 'CS', 'CH', 'HS', [255] = '*' };
 
 
-dns.type      = augment (dns.types);
-dns.class     = augment (dns.classes);
+dns.type      = augment (dns.types, "TYPE");
+dns.class     = augment (dns.classes, "CLASS");
 dns.typecode  = encode  (dns.types);
 dns.classcode = encode  (dns.classes);