diff options
Diffstat (limited to 'util/libreboot-utils/lib/rand.c')
| -rw-r--r-- | util/libreboot-utils/lib/rand.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/util/libreboot-utils/lib/rand.c b/util/libreboot-utils/lib/rand.c index 8e707ba8..b5d6d459 100644 --- a/util/libreboot-utils/lib/rand.c +++ b/util/libreboot-utils/lib/rand.c @@ -59,7 +59,7 @@ retry_rand: #elif defined(__linux__) retry_rand: if ((rc = (ssize_t)syscall(SYS_getrandom, - buf + off, n - off, 0)) < 0) { + (unsigned char *)buf + off, n - off, 0)) < 0) { #else #error Unsupported operating system (possibly unsecure randomisation) #endif @@ -80,6 +80,10 @@ retry_rand: goto out; err: + /* since arc4random always returns + * successful, we treat urandom/getrandom + * failures as fatal and abort accordingly + */ err_no_cleanup(1, ECANCELED, "Randomisation failure, possibly unsupported in your kernel."); exit(EXIT_FAILURE); |