diff options
Diffstat (limited to 'util/random.lua')
| -rw-r--r-- | util/random.lua | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/util/random.lua b/util/random.lua index d8a84514..6782d7fa 100644 --- a/util/random.lua +++ b/util/random.lua @@ -12,7 +12,15 @@ 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 + 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 if not urandom then |