From 6c42390fc217c976ff78858c8f4d199347ee9f2a Mon Sep 17 00:00:00 2001
From: evgeny <evgeny@adaptto.ru>
Date: Sat, 19 Sep 2026 10:32:57 +0300
Subject: [PATCH] =?UTF-8?q?utun:=20=D0=B8=D0=B3=D0=BD=D0=BE=D1=80=D0=B8?=
 =?UTF-8?q?=D1=80=D0=BE=D0=B2=D0=B0=D1=82=D1=8C=20SIGPIPE,=20=D1=87=D1=82?=
 =?UTF-8?q?=D0=BE=D0=B1=D1=8B=20send()=20=D0=B2=20=D0=B7=D0=B0=D0=BA=D1=80?=
 =?UTF-8?q?=D1=8B=D1=82=D1=8B=D0=B9=20TCP-=D1=81=D0=BE=D0=BA=D0=B5=D1=82?=
 =?UTF-8?q?=20=D0=BD=D0=B5=20=D1=83=D0=B1=D0=B8=D0=B2=D0=B0=D0=BB=20=D0=B4?=
 =?UTF-8?q?=D0=B5=D0=BC=D0=BE=D0=BD?=
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---
 src/utun.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/utun.c b/src/utun.c
index 54dbde9b..a33cba56 100644
--- a/src/utun.c
+++ b/src/utun.c
@@ -335,6 +335,12 @@ int main(int argc, char *argv[]) {
     }
 #endif
 
+    // Игнорировать SIGPIPE: send() в закрытый TCP-сокет (reality-relay/STCP под сканерами)
+    // не должен молча убивать демон — ошибки EPIPE обрабатываются по errno в коде.
+#ifndef _WIN32
+    signal(SIGPIPE, SIG_IGN);
+#endif
+
     // Enable TUN initialization for VPN functionality
     utun_instance_set_tun_init_enabled(1);