From 643e3b2137c88aa7054a47b33be35ce14fb41608 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Deuc=D0=B5?= <shurd@sasktel.net>
Date: Fri, 2 Apr 2021 02:20:18 -0400
Subject: [PATCH] Default to IPV6_V6ONLY=1 for jsdoor

---
 src/sbbs3/sockopts.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/sbbs3/sockopts.c b/src/sbbs3/sockopts.c
index 1af7a7b9f..f740476ed 100644
--- a/src/sbbs3/sockopts.c
+++ b/src/sbbs3/sockopts.c
@@ -58,8 +58,14 @@ int DLLCALL set_socket_options(scfg_t* cfg, SOCKET sock, const char* protocol, c
 
 	/* Set user defined socket options */
 	iniFileName(cfgfile,sizeof(cfgfile),cfg->ctrl_dir,"sockopts.ini");
-	if((fp=iniOpenFile(cfgfile,FALSE))==NULL)
+	if((fp=iniOpenFile(cfgfile,FALSE))==NULL) {
+#ifdef JSDOOR
+		int optval = 1;
+		// Set the only sane choice...
+		setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&optval, sizeof(optval));
+#endif
 		return(0);
+	}
 	list=iniReadFile(fp);
 	fclose(fp);
 
-- 
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