Mercurial > prosody-hg
comparison util/random.lua @ 10015:8297408db58b 0.11
util.random: Coerce error to string (thanks waqas)
In theory this could happen in an EOF condition, which should be
impossible with a read from /dev/urandom.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sat, 18 May 2019 18:51:25 +0200 |
| parents | 5d2f7144fa12 |
| children | af8c514e5cf7 |
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| 10014:5d2f7144fa12 | 10015:8297408db58b |
|---|---|
| 12 local urandom, urandom_err = io.open("/dev/urandom", "r"); | 12 local urandom, urandom_err = io.open("/dev/urandom", "r"); |
| 13 | 13 |
| 14 local function bytes(n) | 14 local function bytes(n) |
| 15 local data, err = urandom:read(n); | 15 local data, err = urandom:read(n); |
| 16 if not data then | 16 if not data then |
| 17 error("Unable to retrieve data from secure random number generator (/dev/urandom): "..err); | 17 error("Unable to retrieve data from secure random number generator (/dev/urandom): "..tostring(err)); |
| 18 end | 18 end |
| 19 return data; | 19 return data; |
| 20 end | 20 end |
| 21 | 21 |
| 22 if not urandom then | 22 if not urandom then |