From b5d4f94d9a33d9e3939d2975e9600e1a8d21da10 Mon Sep 17 00:00:00 2001
From: Lasse Rosenow <lasse.j.rosenow@gmail.com>
Date: Tue, 10 Dec 2024 20:58:17 +0100
Subject: [PATCH] Handle select return type

---
 src/platform/posix/tcp_ip_channel.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/platform/posix/tcp_ip_channel.c b/src/platform/posix/tcp_ip_channel.c
index 64365bf7..a8005bf9 100644
--- a/src/platform/posix/tcp_ip_channel.c
+++ b/src/platform/posix/tcp_ip_channel.c
@@ -407,7 +407,11 @@ static void *_TcpIpChannel_worker_thread(void *untyped_self) {
       max_fd = (socket > self->send_failed_event_fds) ? socket : self->send_failed_event_fds;
 
       // Wait for data or cancel if send_failed externally
-      select(max_fd + 1, &readfds, NULL, NULL, NULL);
+      ret = select(max_fd + 1, &readfds, NULL, NULL, NULL);
+      if (ret < 0) {
+        TCP_IP_CHANNEL_ERR("Select returned with error. errno=", errno);
+        break;
+      }
 
       if (FD_ISSET(socket, &readfds)) {
         TCP_IP_CHANNEL_DEBUG("Select -> receive");