From 4596f20b71b10d330cc26cc657741b1b3607f274 Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Sat, 1 Feb 2025 11:00:44 -0500
Subject: [PATCH] Check for ENODEV for hosts with IPv6 disabled while running
in IPv6 mode
---
src/netcode/i_tcp.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/netcode/i_tcp.c b/src/netcode/i_tcp.c
index 89cee2a6c0..282b2ce94e 100644
--- a/src/netcode/i_tcp.c
+++ b/src/netcode/i_tcp.c
@@ -836,6 +836,12 @@ static SOCKET_TYPE UDP_Bind(int family, struct sockaddr *addr, socklen_t addrlen
{
e = errno;
CONS_Alert(CONS_WARNING, M_GetText("Could not register multicast address\n"));
+ if (e == ENODEV)
+ {
+ close(s);
+ I_OutputMsg("Binding failed: no IPv6 device\n");
+ return (SOCKET_TYPE)ERRSOCKET;
+ }
I_OutputMsg("setting IPV6_JOIN_GROUP failed: #%u, %s \n", e, strerror(e));
}
}
--
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