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util.random: Coerce error to string (thanks waqas)

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In theory this could happen in an EOF condition, which should be
impossible with a read from /dev/urandom.
This commit is contained in:
Kim Alvefur 2019-05-18 18:51:25 +02:00
parent 60c9443a7b
commit c42ccf1bcc
1 changed files with 1 additions and 1 deletions
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2
util/random.lua
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@ -14,7 +14,7 @@ local urandom, urandom_err = io.open("/dev/urandom", "r");
local function bytes(n)
local data, err = urandom:read(n);
if not data then
error("Unable to retrieve data from secure random number generator (/dev/urandom): "..err);
error("Unable to retrieve data from secure random number generator (/dev/urandom): "..tostring(err));
end
return data;
end