- struct timespec t = current_timespec ();
- uintmax_t v = getpid () ^ t.tv_sec ^ t.tv_nsec;
- seed_random (&v, sizeof v);
+ random_seed v;
+ if (! (EQ (emacs_gnutls_global_init (), Qt)
+ && gnutls_rnd (GNUTLS_RND_NONCE, &v, sizeof v) == 0))
+ {
+ bool success = false;
+#ifndef WINDOWSNT
+ int fd = emacs_open ("/dev/urandom", O_RDONLY | O_BINARY, 0);
+ if (0 <= fd)
+ {
+ success = emacs_read (fd, &v, sizeof v) == sizeof v;
+ emacs_close (fd);
+ }
+#else
+ success = w32_init_random (&v, sizeof v) == 0;
+#endif
+ if (! success)
+ {
+ /* Fall back to current time value + PID. */
+ struct timespec t = current_timespec ();
+ v = getpid () ^ t.tv_sec ^ t.tv_nsec;
+ }
+ }
+ set_random_seed (v);