X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fonion_utils.rs;h=0deb8b74fdcfc1542cb56f044dd387b83af72c7a;hb=6d98aedaf5dba6565839aa1b806ed730e0c7935c;hp=8feef1697af40ad33032afe23b7bf5f77e8a6b21;hpb=e6c922803f8d1f0303dd8a8f9300e32de55e1fc9;p=rust-lightning

diff --git a/lightning/src/ln/onion_utils.rs b/lightning/src/ln/onion_utils.rs
index 8feef169..0deb8b74 100644
--- a/lightning/src/ln/onion_utils.rs
+++ b/lightning/src/ln/onion_utils.rs
@@ -7,10 +7,10 @@
 // You may not use this file except in accordance with one or both of these
 // licenses.
 
-use ln::channelmanager::{PaymentHash, PaymentSecret, HTLCSource};
+use ln::{PaymentHash, PaymentSecret};
+use ln::channelmanager::HTLCSource;
 use ln::msgs;
 use routing::router::RouteHop;
-use util::byte_utils;
 use util::chacha20::ChaCha20;
 use util::errors::{self, APIError};
 use util::ser::{Readable, Writeable, LengthCalculatingWriter};
@@ -26,8 +26,10 @@ use bitcoin::secp256k1::Secp256k1;
 use bitcoin::secp256k1::ecdh::SharedSecret;
 use bitcoin::secp256k1;
 
+use prelude::*;
 use std::io::Cursor;
-use std::ops::Deref;
+use core::convert::TryInto;
+use core::ops::Deref;
 
 pub(super) struct OnionKeys {
 	#[cfg(test)]
@@ -365,7 +367,7 @@ pub(super) fn process_onion_failure<T: secp256k1::Signing, L: Deref>(secp_ctx: &
 						const NODE: u16 = 0x2000;
 						const UPDATE: u16 = 0x1000;
 
-						let error_code = byte_utils::slice_to_be16(&error_code_slice);
+						let error_code = u16::from_be_bytes(error_code_slice.try_into().expect("len is 2"));
 						error_code_ret = Some(error_code);
 						error_packet_ret = Some(err_packet.failuremsg[2..].to_vec());
 
@@ -392,7 +394,7 @@ pub(super) fn process_onion_failure<T: secp256k1::Signing, L: Deref>(secp_ctx: &
 						}
 						else if error_code & UPDATE == UPDATE {
 							if let Some(update_len_slice) = err_packet.failuremsg.get(debug_field_size+2..debug_field_size+4) {
-								let update_len = byte_utils::slice_to_be16(&update_len_slice) as usize;
+								let update_len = u16::from_be_bytes(update_len_slice.try_into().expect("len is 2")) as usize;
 								if let Some(update_slice) = err_packet.failuremsg.get(debug_field_size + 4..debug_field_size + 4 + update_len) {
 									if let Ok(chan_update) = msgs::ChannelUpdate::read(&mut Cursor::new(&update_slice)) {
 										// if channel_update should NOT have caused the failure:
@@ -477,7 +479,8 @@ pub(super) fn process_onion_failure<T: secp256k1::Signing, L: Deref>(secp_ctx: &
 
 #[cfg(test)]
 mod tests {
-	use ln::channelmanager::PaymentHash;
+	use prelude::*;
+	use ln::PaymentHash;
 	use ln::features::{ChannelFeatures, NodeFeatures};
 	use routing::router::{Route, RouteHop};
 	use ln::msgs;