X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Futil%2Frng.rs;h=818528b8e13e9f35c333c18769ea12dce4543b93;hb=24fd566567320b4d78fa868cce873bd733e30ce5;hp=f0d4492521b82d090c33c3f570dff9472e6c767d;hpb=511c5319f1b50438ed21e5c922c0c9ef0b258cac;p=rust-lightning

diff --git a/src/util/rng.rs b/src/util/rng.rs
index f0d44925..818528b8 100644
--- a/src/util/rng.rs
+++ b/src/util/rng.rs
@@ -24,19 +24,32 @@ pub use self::real_rng::*;
 #[cfg(feature = "fuzztarget")]
 mod fuzzy_rng {
 	use bitcoin::util::uint::Uint256;
+	use util::byte_utils;
+
+	static mut RNG_ITER: u64 = 0;
 
 	pub fn fill_bytes(data: &mut [u8]) {
-		for i in 0..data.len() {
-			data[i] = 0x42;
+		let rng = unsafe { RNG_ITER += 1; RNG_ITER -1 };
+		for i in 0..data.len() / 8 {
+			data[i*8..(i+1)*8].copy_from_slice(&byte_utils::be64_to_array(rng));
 		}
+		let rem = data.len() % 8;
+		let off = data.len() - rem;
+		data[off..].copy_from_slice(&byte_utils::be64_to_array(rng)[0..rem]);
 	}
 
 	pub fn rand_uint256() -> Uint256 {
-		Uint256([0xdeadbeef, 0x1badcafe, 0xbadbeef, 0xdeadcafe])
+		let rng = unsafe { RNG_ITER += 1; RNG_ITER - 1 };
+		Uint256([rng, rng, rng, rng])
 	}
 
 	pub fn rand_f32() -> f32 {
-		0.42
+		let rng = unsafe { RNG_ITER += 1; RNG_ITER - 1 };
+		f64::from_bits(rng) as f32
+	}
+
+	pub fn reset_rng_state() {
+		unsafe { RNG_ITER = 0; }
 	}
 }
 #[cfg(feature = "fuzztarget")]