prosody
68694c1bd960
util/random.lua

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util/random.lua @ 9242:68694c1bd960

util.dataforms: Allow field names to be different from the 'var' attribute This should allow the usage of long prefixes and namespace-like names to be contained to the XML representation of the form, so that the code can use more convenient names.
author Kim Alvefur <zash@zash.se>
date Sat, 01 Sep 2018 01:24:46 +0200
parent 8243:292f61d9d30a
child 10014:5d2f7144fa12
line wrap: on
line source

-- 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 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 {
	bytes = bytes;
	_source = "/dev/urandom";
};