From 578cd23d591282b7a0f78201c28ff945e883e181 Mon Sep 17 00:00:00 2001
From: Cedric Roux <cedric.roux@eurecom.fr>
Date: Sat, 18 Nov 2023 21:44:21 +0100
Subject: [PATCH] rfsimulator: ignore PIPE signal

When au UE disconnects, a write on the rf simulator socket may
generate a PIPE signal in the gnb and crash it.

Let's ignore this signal.
---
 radio/rfsimulator/simulator.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/radio/rfsimulator/simulator.c b/radio/rfsimulator/simulator.c
index e1bd7e1738..1111e48e6b 100644
--- a/radio/rfsimulator/simulator.c
+++ b/radio/rfsimulator/simulator.c
@@ -1119,5 +1119,11 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
     }
   }
 
+  /* write on a socket fails if the other end is closed and we get SIGPIPE */
+  if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
+    perror("SIGPIPE");
+    exit(1);
+  }
+
   return 0;
 }