electrum

commit fe1b2149cbadce8e9d4ad5e008e3ee60a0b3c1e4
parent 1d9311aeefb9f9b4d76d72b792d784fb9f024bfd
Author: ThomasV <thomasv@electrum.org>
Date:   Thu, 28 Jan 2021 11:14:53 +0100

lnpeer: fix flen in INIT

Diffstat:
M
electrum/lnpeer.py
 | 
16
++++++++++------

1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/electrum/lnpeer.py b/electrum/lnpeer.py
@@ -133,12 +133,16 @@ class Peer(Logger):
     async def initialize(self):
         if isinstance(self.transport, LNTransport):
             await self.transport.handshake()
-        # FIXME: "flen" hardcoded but actually it depends on "features"...:
-        self.send_message("init", gflen=0, flen=2, features=self.features.for_init_message(),
-                          init_tlvs={
-                              'networks':
-                                  {'chains': constants.net.rev_genesis_bytes()}
-                          })
+        features = self.features.for_init_message()
+        b = int.bit_length(features)
+        flen = b // 8 + int(bool(b % 8))
+        self.send_message(
+            "init", gflen=0, flen=flen,
+            features=features,
+            init_tlvs={
+                'networks':
+                {'chains': constants.net.rev_genesis_bytes()}
+            })
         self._sent_init = True
         self.maybe_set_initialized()