prosody
e2919978673e
util/random.lua

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util/random.lua @ 8706:e2919978673e

net.http: Fix parameter order to http request callbacks Commit e3b9dc9dd940 changed the parameter order in 2013, but did not update the names of the parameters in the callback function. Due to this inconsistency, 12df41a5a4b1 accidentally reversed the order when fixing the variable names without fixing where they are used. Additionally the documentation was incorrect (since 2013), and this has also now been fixed.
author Matthew Wild <mwild1@gmail.com>
date Wed, 04 Apr 2018 18:27:44 +0100
parent 8242:177873dc9cf3
child 8243:292f61d9d30a
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bd812a7713ad util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
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1 -- Prosody IM
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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2 -- Copyright (C) 2008-2014 Matthew Wild
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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3 -- Copyright (C) 2008-2014 Waqas Hussain
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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4 --
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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5 -- This project is MIT/X11 licensed. Please see the
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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6 -- COPYING file in the source package for more information.
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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7 --
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8
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3d2c2f0809ee util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG
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9 local ok, crand = pcall(require, "util.crand");
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10 if ok then return crand; end
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11
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51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid
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12 local urandom, urandom_err = io.open("/dev/urandom", "r");
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13
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ac920b0f9eae util.random: Open /dev/urandom read-only, make seed() a noop
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14 local function seed()
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15 end
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16
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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17 local function bytes(n)
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ae044691de0f util.random: Use /dev/urandom
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18 return urandom:read(n);
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19 end
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20
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51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid
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21 if not urandom then
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid
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22 function bytes()
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23 error("Unable to obtain a secure random number generator, please see https://prosody.im/doc/random ("..urandom_err..")");
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24 end
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25 end
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26
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27 return {
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28 seed = seed;
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29 bytes = bytes;
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177873dc9cf3 util.random: Add a _source field to match util.crand
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30 _source = "/dev/urandom";
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31 };