From 6bc2d3d06e9cb4da68ea4b63d9b6b219d88ab927 Mon Sep 17 00:00:00 2001
From: Alexander Barton <alex@barton.de>
Date: Wed, 13 Aug 2008 16:52:35 +0200
Subject: [PATCH] New connection option CONN_RFC1459.

This new connection option CONN_RFC1459 indicates that the peer on this
link only supports the IRC protocol as defined in RFC 1459 and that the
compatibility mode (e. g. for outgoing commands like NICK) should be used.
---
 src/ngircd/conn.h      |  8 +++-----
 src/ngircd/irc-login.c | 12 ++++++++++++
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/src/ngircd/conn.h b/src/ngircd/conn.h
index cbfcc8f1..08f6dde0 100644
--- a/src/ngircd/conn.h
+++ b/src/ngircd/conn.h
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2008 by Alexander Barton (alex@barton.de)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -8,8 +8,6 @@
  * (at your option) any later version.
  * Please read the file COPYING, README and AUTHORS for more information.
  *
- * $Id: conn.h,v 1.46 2008/02/26 22:04:17 fw Exp $
- *
  * Connection management (header)
  */
 
@@ -23,9 +21,9 @@
 
 #define CONN_ISCLOSING		1	/* Conn_Close() already called */
 #define CONN_ISCONNECTING	2	/* connect() in progress */
-
+#define CONN_RFC1459		4	/* RFC 1459 compatibility mode */
 #ifdef ZLIB
-#define CONN_ZIP		4	/* zlib compressed link */
+#define CONN_ZIP		8	/* zlib compressed link */
 #endif
 
 #include "conf-ssl.h"
diff --git a/src/ngircd/irc-login.c b/src/ngircd/irc-login.c
index 4a2ebe22..82e3482a 100644
--- a/src/ngircd/irc-login.c
+++ b/src/ngircd/irc-login.c
@@ -168,6 +168,7 @@ GLOBAL bool
 IRC_NICK( CLIENT *Client, REQUEST *Req )
 {
 	CLIENT *intr_c, *target, *c;
+	CONN_ID conn;
 	char *nick, *user, *hostname, *modes, *info;
 	int token, hops;
 
@@ -305,6 +306,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
 						  Client_ID(Client), Req->command);
 
 		if (Req->argc >= 7) {
+			/* RFC 2813 compatible syntax */
 			nick = Req->argv[0];
 			hops = atoi(Req->argv[1]);
 			user = Req->argv[2];
@@ -313,6 +315,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
 			modes = Req->argv[5] + 1;
 			info = Req->argv[6];
 		} else {
+			/* RFC 1459 compatible syntax */
 			nick = Req->argv[0];
 			hops = 1;
 			user = Req->argv[0];
@@ -320,6 +323,15 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
 			token = atoi(Req->argv[1]);
 			modes = "";
 			info = Req->argv[0];
+
+			conn = Client_Conn(Client);
+			if (conn != NONE &&
+			    !(Conn_Options(conn) & CONN_RFC1459)) {
+				Log(LOG_INFO,
+				    "Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
+				    conn, Client_ID(Client));
+				Conn_SetOption(conn, CONN_RFC1459);
+			}
 		}
 
 		/* Nick ueberpruefen */
-- 
2.39.2