From 84ff5a6eb975fbabfaaa92447246571721a016bc Mon Sep 17 00:00:00 2001
From: Alexander Barton <alex@barton.de>
Date: Thu, 18 Sep 2014 01:08:55 +0200
Subject: [PATCH 1/1] Sync "except lists" between servers

Up to now, ban, invite, and G-Line lists have been synced between servers
while linking -- but obviously nobody noticed that except list have been
missing ever since. Until now.

Thanks to "j4jackj", who reported this issue in #ngircd.
---
 src/ngircd/numeric.c | 52 +++++++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/src/ngircd/numeric.c b/src/ngircd/numeric.c
index da863e4d..b0ceeef8 100644
--- a/src/ngircd/numeric.c
+++ b/src/ngircd/numeric.c
@@ -145,7 +145,27 @@ Announce_Server(CLIENT * Client, CLIENT * Server)
 #ifdef IRCPLUS
 
 /**
- * Synchronize invite, ban, G- and K-Line lists between servers.
+ * Send a specific list to a remote server.
+ */
+static bool
+Send_List(CLIENT *Client, CHANNEL *Chan, struct list_head *Head, char Type)
+{
+	struct list_elem *elem;
+
+	elem = Lists_GetFirst(Head);
+	while (elem) {
+		if (!IRC_WriteStrClient(Client, "MODE %s +%c %s",
+					Channel_Name(Chan), Type,
+					Lists_GetMask(elem))) {
+			return DISCONNECTED;
+		}
+		elem = Lists_GetNext(elem);
+	}
+	return CONNECTED;
+}
+
+/**
+ * Synchronize invite, ban, except, and G-Line lists between servers.
  *
  * @param Client New server.
  * @return CONNECTED or DISCONNECTED.
@@ -173,30 +193,12 @@ Synchronize_Lists(CLIENT * Client)
 
 	c = Channel_First();
 	while (c) {
-		/* ban list */
-		head = Channel_GetListBans(c);
-		elem = Lists_GetFirst(head);
-		while (elem) {
-			if (!IRC_WriteStrClient(Client, "MODE %s +b %s",
-						Channel_Name(c),
-						Lists_GetMask(elem))) {
-				return DISCONNECTED;
-			}
-			elem = Lists_GetNext(elem);
-		}
-
-		/* invite list */
-		head = Channel_GetListInvites(c);
-		elem = Lists_GetFirst(head);
-		while (elem) {
-			if (!IRC_WriteStrClient(Client, "MODE %s +I %s",
-						Channel_Name(c),
-						Lists_GetMask(elem))) {
-				return DISCONNECTED;
-			}
-			elem = Lists_GetNext(elem);
-		}
-
+		if (!Send_List(Client, c, Channel_GetListExcepts(c), 'e'))
+			return DISCONNECTED;
+		if (!Send_List(Client, c, Channel_GetListBans(c), 'b'))
+			return DISCONNECTED;
+		if (!Send_List(Client, c, Channel_GetListInvites(c), 'I'))
+			return DISCONNECTED;
 		c = Channel_Next(c);
 	}
 	return CONNECTED;
-- 
2.39.2