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authorKim Alvefur <zash@zash.se>2019-05-18 17:28:21 +0200
committerKim Alvefur <zash@zash.se>2019-05-18 17:28:21 +0200
commit60c9443a7b23b160cf0f9fdf96629ccf1d884adf (patch)
treecd21fcbaaf5001bbb68036624fdcc975e7f7bee9 /util/random.lua
parent4512a6266dabd2ecd24579421f3d1253961ec233 (diff)
downloadprosody-60c9443a7b23b160cf0f9fdf96629ccf1d884adf.tar.gz
prosody-60c9443a7b23b160cf0f9fdf96629ccf1d884adf.zip
util.random: Handle unlikely read errors from /dev/urandom (see #1313)
Diffstat (limited to 'util/random.lua')
-rw-r--r--util/random.lua6
1 files changed, 5 insertions, 1 deletions
diff --git a/util/random.lua b/util/random.lua
index d8a84514..8ae06b49 100644
--- a/util/random.lua
+++ b/util/random.lua
@@ -12,7 +12,11 @@ if ok then return crand; end
local urandom, urandom_err = io.open("/dev/urandom", "r");
local function bytes(n)
- return urandom:read(n);
+ local data, err = urandom:read(n);
+ if not data then
+ error("Unable to retrieve data from secure random number generator (/dev/urandom): "..err);
+ end
+ return data;
end
if not urandom then