3 files changed, 10 insertions, 26 deletions
diff --git a/util/ip.lua b/util/ip.lua
index 7dcace5c..ec3b4d7e 100644
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -25,6 +25,10 @@ local function new_ip(ipStr, proto)
 	elseif proto ~= "IPv4" and proto ~= "IPv6" then
 		return nil, "invalid protocol";
 	end
+	local zone;
+	if proto == "IPv6" and ipStr:find('%', 1, true) then
+		ipStr, zone = ipStr:match("^(.-)%%(.*)");
+	end
 	if proto == "IPv6" and ipStr:find('.', 1, true) then
 		local changed;
 		ipStr, changed = ipStr:gsub(":(%d+)%.(%d+)%.(%d+)%.(%d+)$", function(a,b,c,d)
@@ -33,7 +37,7 @@ local function new_ip(ipStr, proto)
 		if changed ~= 1 then return nil, "invalid-address"; end
 	end
 
-	return setmetatable({ addr = ipStr, proto = proto }, ip_mt);
+	return setmetatable({ addr = ipStr, proto = proto, zone = zone }, ip_mt);
 end
 
 local function toBits(ip)
diff --git a/util/random.lua b/util/random.lua
index 5938a94f..4963e98c 100644
--- a/util/random.lua
+++ b/util/random.lua
@@ -6,35 +6,15 @@
 -- COPYING file in the source package for more information.
 --
 
-local tostring = tostring;
-local os_time = os.time;
-local os_clock = os.clock;
-local ceil = math.ceil;
-local H = require "util.hashes".sha512;
-
-local last_uniq_time = 0;
-local function uniq_time()
-	local new_uniq_time = os_time();
-	if last_uniq_time >= new_uniq_time then new_uniq_time = last_uniq_time + 1; end
-	last_uniq_time = new_uniq_time;
-	return new_uniq_time;
-end
-
-local function new_random(x)
-	return H(x..os_clock()..tostring({}));
-end
-
-local buffer = new_random(uniq_time());
+local urandom = assert(io.open("/dev/urandom", "r+"));
 
 local function seed(x)
-	buffer = new_random(buffer..x);
+	urandom:write(x);
+	urandom:flush();
 end
 
 local function bytes(n)
-	if #buffer < n+4 then seed(uniq_time()); end
-	local r = buffer:sub(1, n);
-	buffer = buffer:sub(n+1);
-	return r;
+	return urandom:read(n);
 end
 
 return {
diff --git a/util/uuid.lua b/util/uuid.lua
index e10fc0f7..f4fd21f6 100644
--- a/util/uuid.lua
+++ b/util/uuid.lua
@@ -16,7 +16,7 @@ local function get_nibbles(n)
 end
 
 local function get_twobits()
-	return ("%x"):format(get_nibbles(1):byte() % 4 + 8);
+	return ("%x"):format(random_bytes(1):byte() % 4 + 8);
 end
 
 local function generate()