File

util/random.lua @ 7460:726b088f9408

Merge 0.9->0.10
author Kim Alvefur <zash@zash.se>
date Fri, 24 Jun 2016 15:11:06 +0200
parent 7187:3d2c2f0809ee
child 8241:e7496cff1215
child 8242:177873dc9cf3
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-- Prosody IM
-- Copyright (C) 2008-2014 Matthew Wild
-- Copyright (C) 2008-2014 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local ok, crand = pcall(require, "util.crand");
if ok then return crand; end

local urandom, urandom_err = io.open("/dev/urandom", "r");

local function seed()
end

local function bytes(n)
	return urandom:read(n);
end

if not urandom then
	function bytes()
		error("Unable to obtain a secure random number generator, please see https://prosody.im/doc/random ("..urandom_err..")");
	end
end

return {
	seed = seed;
	bytes = bytes;
};