From f58785c2e0aafbf4cde65a357c4cc5d1c8508289 Mon Sep 17 00:00:00 2001
From: deepend <deepend@tilde.club>
Date: Wed, 4 Feb 2026 12:42:22 -0700
Subject: [PATCH] Added an explicit diagnostic when an STS capability token
 lacks a value while keeping the ignore policy unchanged.

---
 src/common/inbound.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/common/inbound.c b/src/common/inbound.c
index 081b3185..d3fd4139 100644
--- a/src/common/inbound.c
+++ b/src/common/inbound.c
@@ -1900,6 +1900,11 @@ inbound_cap_ls (server *serv, char *nick, char *extensions_str,
 			{
 				sts_upgrade_triggered |= sts_handle_capability (serv, value);
 			}
+			else
+			{
+				PrintTextf (serv->server_session,
+							_("Invalid STS capability token without value"));
+			}
 			continue;
 		}