Precautions against using the PRNG uninitialized: RAND_bytes() now

returns int (1 = ok, 0 = not seeded). New function RAND_add() is the
same as RAND_seed() but takes an estimate of the entropy as an additional
argument.

1 files changed, 9 insertions, 2 deletions

diff --git a/crypto/rand/rand_lib.c b/crypto/rand/rand_lib.c
index 0f96e166e5..3cdba48ba8 100644
--- a/crypto/rand/rand_lib.c
+++ b/crypto/rand/rand_lib.c
@@ -89,9 +89,16 @@ void RAND_seed(const void *buf, int num)
 		rand_meth->seed(buf,num);
 	}
 
-void RAND_bytes(unsigned char *buf, int num)
+void RAND_add(const void *buf, int num, int entropy)
 	{
 	if (rand_meth != NULL)
-		rand_meth->bytes(buf,num);
+		rand_meth->add(buf,num,entropy);
+	}
+
+int RAND_bytes(unsigned char *buf, int num)
+	{
+	if (rand_meth != NULL)
+		return rand_meth->bytes(buf,num);
+	return(-1);
 	}