If RNG is already seeded, return early

Most of the time, in most systems the openSSL RNG seeds itself
automatically, in that case rand status returns 1, this is
sufficient to return early.

diff --git a/util.c b/util.c
index 662aa23a96d161394db205e04276e421eb0c399a..83d31f70eda04348d1c5073f080f07fc6f423130 100644 (file)
--- a/util.c
+++ b/util.c
@@ -346,6 +346,11 @@ ldns_init_random(FILE *fd, unsigned int size)
        unsigned int seed_i;
        struct timeval tv;
 
+#ifdef HAVE_SSL
+       if(RAND_status() == 1)
+               /* already seeded */
+               return 0;
+#endif
        /* we'll need at least sizeof(unsigned int) bytes for the
           standard prng seed */
        if (size < (unsigned int) sizeof(seed_i)){