From 096a9b17ac3445daa11e7e1b2e702c70bd0e4ee4 Mon Sep 17 00:00:00 2001
From: euxane
Date: Sat, 30 Nov 2024 09:27:40 +0100
Subject: ping: use current sender address at each request

The sending IP address can change after the start of the program.
That's happening regularly with IPv6 SLAAC privacy extensions.
---
 ping.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'ping.nim')

diff --git a/ping.nim b/ping.nim
index b09d5f1..dd41882 100644
--- a/ping.nim
+++ b/ping.nim
@@ -217,11 +217,11 @@ proc initPingMonitor*(target: IpAddress, ident: uint16): PingMonitor =
   PingMonitor(
     socket: newSocket(domain, SOCK_RAW, proto),
     target: target,
-    source: getPrimaryIPAddr(target),
     ident: ident,
   )
 
-func buildEchoRequest(mon: PingMonitor): ICMPPacket =
+proc buildEchoRequest(mon: PingMonitor): ICMPPacket =
+  mon.source = getPrimaryIPAddr(dest=mon.target)
   buildEchoRequest(mon.source, mon.target, mon.ident, mon.seqNum, mon.payload)
 
 proc sendEchoRequest(mon: PingMonitor, timeout: Duration) =
-- 
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