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-rw-r--r--util/nvmutil/nvmutil.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index e4fe6c72..1a6f4687 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -358,7 +358,20 @@ open_dev_urandom(void)
/*
* Fall back to /dev/random on old platforms
* where /dev/urandom does not exist.
+ *
+ * In general, we can assume that any system
+ * that would have urandom, probably has the
+ * other device (/dev/urandom).
+ *
+ * Given that on many modern systems, urandom
+ * and random are essentially the same, this
+ * also provides some fault-tolerance there,
+ * while still ultimately being strict under
+ * fallback conditions, thus:
*/
+
+ errno = 0;
+
rname = oldrandom;
xopen(&rfd, rname, O_RDONLY, &st_rfd);
}