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util.random: Throw different error for EOL condition

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This commit is contained in:
Kim Alvefur 2019-05-21 08:52:21 +02:00
parent 13e3b3fb15
commit 93eb1dd57f
1 changed files with 5 additions and 1 deletions
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4
util/random.lua
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@ -14,7 +14,11 @@ local urandom, urandom_err = io.open("/dev/urandom", "r");
local function bytes(n)
local data, err = urandom:read(n);
if not data then
if err then
error("Unable to retrieve data from secure random number generator (/dev/urandom): "..tostring(err));
else
error("Secure random number generator (/dev/urandom) returned an end-of-file condition");
end
end
return data;
end