From f9e3f8cbbb8d9eac18aafe5db4cb2f588f48fc4d Mon Sep 17 00:00:00 2001
From: DcruBro <info@dcrubro.com>
Date: Thu, 23 Jul 2026 14:23:38 +0200
Subject: [PATCH] SIGPIPE fix - don't terminate on nodes being nodes

---
 src/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main.c b/src/main.c
index 5de6a27..df622b5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -674,6 +674,10 @@ int main(int argc, char* argv[]) {
     ApplyRuntimeConfigFromEnv();
 
     signal(SIGINT, handle_sigint);
+    // Ignore SIGPIPE so a write to a socket whose peer has already disconnected returns EPIPE
+    // (handled by the send paths) instead of terminating the whole process. Peers connecting and
+    // disconnecting is normal p2p behaviour and must never take the node down.
+    signal(SIGPIPE, SIG_IGN);
     srand((unsigned int)time(NULL));
 
     // Initialize runtime locks before any thread or helper can touch chain state.