- /* This is just a safety measure. Given that we are root and
- * most likely created the file ourselves the mode and owner
- * should be correct anyway. */
- fchmod(seed_fd, 0600);
- fchown(seed_fd, 0, 0);
-
- if ((r = loop_read(random_fd, buf, buf_size, false)) <= 0)
- log_error("Failed to read new seed from /dev/urandom: %s", r < 0 ? strerror(errno) : "EOF");
- else {
- if ((r = loop_write(seed_fd, buf, (size_t) r, false)) <= 0)
- log_error("Failed to write new random seed file: %s", r < 0 ? strerror(errno) : "short write");
+ if (cleanup_seed_file) {
+ /* This is just a safety measure. Given that we are root and
+ * most likely created the file ourselves the mode and owner
+ * should be correct anyway. */
+ fchmod(seed_fd, 0600);
+ fchown(seed_fd, 0, 0);
+
+ k = loop_read(random_fd, buf, buf_size, false);
+ if (k <= 0) {
+ log_error("Failed to read new seed from /dev/urandom: %s", r < 0 ? strerror(-r) : "EOF");
+ r = k == 0 ? -EIO : (int) k;
+ } else {
+ r = loop_write(seed_fd, buf, (size_t) k, false);
+ if (r < 0)
+ log_error_errno(r, "Failed to write new random seed file: %m");
+ }