io.c: fix select FD_SETSIZE check when using epoll as io backend

Fix sending of JOINs between servers

I found a bug in "sending join between servers".
This does hit only operators that join a channel with at least 2 servers active in the net
the server the oper connects to sends "channel^Go" to the other servers
the other server first searches for the channel and then strips the modes from the channel name
he has to do the other way round: first strip and then check the channel name.

ChangeLog

@@ -10,8 +10,21 @@
                                -- ChangeLog --
 
 
-ngIRCd HEAD
+ngIRCd 0.11.1 (2008-02-26)
 
+  - Fix sending of JOIN commands between servers when remote server appended
+    mode flags. (Rolf Eike Beer) [from HEAD]
+  - Send "G" instead of "H" flag in WHO replies. (reported by Dana Dahlstrom)
+  - Under some circumstances ngIRCd issued channel MODE message with a
+    trailing space. (Dana Dahlstrom) [from HEAD]
+
+ngIRCd 0.11.0 (2008-01-15)
+
+  ngIRCd 0.11.0-pre2 (2008-01-07)
+  - SECURITY: IRC_PART could reference invalid memory, causing
+    ngircd to crash [from HEAD].
+  
+  ngIRCd 0.11.0-pre1 (2008-01-02)
   - Use dotted-decimal IP address if hostname is >= 64.
   - Add support for /STAT u (server uptime) command.
   - New [Server] configuration Option "Bind" allows to specify
@@ -40,6 +53,11 @@ ngIRCd HEAD
   - Added support for the WALLOPS command. Usage is restricted to IRC
     operators.
 
+ngIRCd 0.10.4 (2008-01-07)
+
+  - SECURITY: IRC_PART could reference invalid memory, causing
+    ngircd to crash [from HEAD].
+  
 ngIRCd 0.10.3 (2007-08-01)
 
   - SECURITY: Fixed a severe bug in handling JOIN commands, which could
@@ -724,4 +742,4 @@ ngIRCd 0.0.1, 31.12.2001
 
 
 -- 
-$Id: ChangeLog,v 1.332 2008/01/02 11:31:48 alex Exp $
+$Id: ChangeLog,v 1.332.2.11 2008/02/26 20:35:05 alex Exp $

NEWS

@@ -10,7 +10,7 @@
                                   -- NEWS --
 
 
-ngIRCd HEAD
+ngIRCd 0.11.0 (2008-01-15)
 
   - Add support for /STAT u (server uptime) command.
   - New [Server] configuration Option "Bind" allows to specify
@@ -251,4 +251,4 @@ ngIRCd 0.0.1, 31.12.2001
 
 
 -- 
-$Id: NEWS,v 1.83 2008/01/02 11:31:48 alex Exp $
+$Id: NEWS,v 1.83.2.4 2008/02/26 19:22:07 alex Exp $

configure.in

@@ -1,6 +1,6 @@
 #
 # ngIRCd -- The Next Generation IRC Daemon
-# Copyright (c)2001-2005 Alexander Barton <alex@barton.de>
+# Copyright (c)2001-2008 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
@@ -8,13 +8,13 @@
 # (at your option) any later version.
 # Please read the file COPYING, README and AUTHORS for more information.
 #
-# $Id: configure.in,v 1.125 2006/12/26 16:00:45 alex Exp $
+# $Id: configure.in,v 1.125.2.4 2008/02/26 19:37:34 alex Exp $
 #
 
 # -- Initialisation --
 
 AC_PREREQ(2.50)
-AC_INIT(ngircd, CVSHEAD)
+AC_INIT(ngircd, 0.11.1)
 AC_CONFIG_SRCDIR(src/ngircd/ngircd.c)
 AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE(1.6)

contrib/Debian/changelog

@@ -1,3 +1,33 @@
+ngircd (0.11.1-0ab1) unstable; urgency=low
+
+  * New "upstream" release 0.11.1.
+
+ -- Alexander Barton <alex@barton.de>  Tue, 26 Feb 2008 20:24:55 +0100
+
+ngircd (0.11.0-0ab1) unstable; urgency=low
+
+  * New "upstream" release 0.11.0.
+
+ -- Alexander Barton <alex@barton.de>  Tue, 15 Jan 2008 21:43:46 +0100
+
+ngircd (0.11.0-0ab0-pre2) unstable; urgency=low
+
+  * Second prerelease of upcoming new "upstream release".
+
+ -- Alexander Barton <alex@barton.de>  Mon,  7 Jan 2008 15:32:42 +0100
+
+ngircd (0.11.0-0ab0-pre1) unstable; urgency=low
+
+  * Prerelease of upcoming new "upstream release".
+
+ -- Alexander Barton <alex@barton.de>  Wed,  2 Jan 2008 21:33:15 +0100
+
+ngircd (0.10.4-0ab1) unstable; urgency=high
+
+  * New "upstream" release: 0.10.4 - fixing a security bug.
+
+ -- Alexander Barton <alex@barton.de>  Mon,  7 Jan 2008 22:04:44 +0100
+
 ngircd (0.10.0-0ab1) unstable; urgency=low
 
   * New "upstream" release: 0.10.0

contrib/ngircd.spec

@@ -1,5 +1,5 @@
 %define name    ngircd
-%define version CVSHEAD
+%define version 0.11.1
 %define release 1
 %define prefix  %{_prefix}
 

doc/FAQ.txt

@@ -62,15 +62,6 @@ A: On Linux/glibc with chroot enabled you need to put some libraries inside
    is to either disable chroot support or to link against dietlibc instead
    of glibc. (tnx to Sebastian Siewior)
 
-Q: I am running Linux and ngircd dies on startup with the follwing errors:
-   IO subsystem: epoll (hint size 100, initial maxfd 100, masterfd -1).
-   Cannot initialize IO routines: Function not implemented
-   Server isn't listening on a single port!
-   ngircd exiting due to fatal errors!
-A: epoll is only supported on 2.6 Linux kernels. Either use a 2.6 kernel, or
-   re-run configure with the --without-epoll parameter. After configure
-   completed, you should see select() being listed as IO backend:
-   '(I/O backend: "select()"').
 
 IV. Bugs!?
 ~~~~~~~~~~
@@ -85,4 +76,4 @@ A: Please file a bug report at <http://ngircd.barton.de/bugzilla/index.cgi>!
 
 
 -- 
-$Id: FAQ.txt,v 1.11 2005/12/09 21:14:56 fw Exp $
+$Id: FAQ.txt,v 1.11.4.1 2008/01/02 22:36:48 fw Exp $

doc/sample-ngircd.conf

@@ -1,4 +1,4 @@
-# $Id: sample-ngircd.conf,v 1.43 2007/11/23 16:26:03 fw Exp $
+# $Id: sample-ngircd.conf,v 1.43.2.1 2008/01/07 23:10:28 alex Exp $
 
 #
 # This is a sample configuration file for the ngIRCd, which must be adepted
@@ -100,6 +100,9 @@
 	# Allow Pre-Defined Channels only (see Section [Channels])
 	;PredefChannelsOnly = no
 
+	# Don't do any DNS lookups when a client connects to the server.
+	;NoDNS = no
+
 	# Maximum number of simultaneous connection the server is allowed
 	# to accept (0: unlimited):
 	;MaxConnections = 0

src/ngircd/io.c

@@ -12,7 +12,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: io.c,v 1.28 2008/01/02 10:29:51 fw Exp $";
+static char UNUSED id[] = "$Id: io.c,v 1.28.2.1 2008/04/03 14:16:35 fw Exp $";
 
 #include <assert.h>
 #include <stdlib.h>
@@ -308,7 +308,7 @@ io_event_create(int fd, short what, void (*cbfunc) (int, short))
 
 	assert(fd >= 0);
 #if defined(IO_USE_SELECT) && defined(FD_SETSIZE)
-	if (fd >= FD_SETSIZE) {
+	if (io_masterfd < 0 && fd >= FD_SETSIZE) {
 		Log(LOG_ERR,
 		    "fd %d exceeds FD_SETSIZE (%u) (select can't handle more file descriptors)",
 		    fd, FD_SETSIZE);

src/ngircd/irc-channel.c

@@ -14,7 +14,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: irc-channel.c,v 1.40 2007/07/31 18:56:14 alex Exp $";
+static char UNUSED id[] = "$Id: irc-channel.c,v 1.40.2.2 2008/02/26 12:07:41 fw Exp $";
 
 #include "imp.h"
 #include <assert.h>
@@ -79,6 +79,14 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
 	{
 		chan = NULL; flags = NULL;
 
+		if (Client_Type(Client) == CLIENT_SERVER) {
+			flags = strchr( channame, 0x7 );
+			if( flags ) {
+				*flags = '\0';
+				flags++;
+			}
+		}
+
 		/* wird der Channel neu angelegt? */
 		if( Channel_Search( channame )) {
 			is_new_chan = false;
@@ -92,18 +100,6 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
 			is_new_chan = true;
 		}
 
-		/* Hat ein Server Channel-User-Modes uebergeben? */
-		if( Client_Type( Client ) == CLIENT_SERVER )
-		{
-			/* Channel-Flags extrahieren */
-			flags = strchr( channame, 0x7 );
-			if( flags )
-			{
-				*flags = '\0';
-				flags++;
-			}
-		}
-
 		/* Local client? */
 		if( Client_Type( Client ) == CLIENT_USER )
 		{
@@ -269,8 +265,9 @@ IRC_PART( CLIENT *Client, REQUEST *Req )
 	assert( Client != NULL );
 	assert( Req != NULL );
 
-	/* Falsche Anzahl Parameter? */
+	if (Req->argc < 1 || Req->argc > 2)
-	if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+		return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+					Client_ID(Client), Req->command);
 
 	/* Wer ist der Absender? */
 	if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
@@ -278,18 +275,11 @@ IRC_PART( CLIENT *Client, REQUEST *Req )
 	if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
 
 	/* Channel-Namen durchgehen */
-	chan = strtok( Req->argv[0], "," );
+	chan = strtok(Req->argv[0], ",");
-	while( chan )
+	while (chan) {
-	{
+		Channel_Part(target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID(target));
-		if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target )))
-		{
-			/* naechsten Namen ermitteln */
-			chan = strtok( NULL, "," );
-			continue;
-		}
 
-		/* naechsten Namen ermitteln */
+		chan = strtok(NULL, ",");
-		chan = strtok( NULL, "," );
 	}
 	return CONNECTED;
 } /* IRC_PART */

src/ngircd/irc-info.c

@@ -14,7 +14,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: irc-info.c,v 1.41 2007/12/11 11:29:44 fw Exp $";
+static char UNUSED id[] = "$Id: irc-info.c,v 1.41.2.1 2008/02/26 12:06:57 fw Exp $";
 
 #include "imp.h"
 #include <assert.h>
@@ -648,7 +648,11 @@ IRC_WHO( CLIENT *Client, REQUEST *Req )
 			if( ok && (( ! only_ops ) || ( strchr( Client_Modes( c ), 'o' ))))
 			{
 				/* Get flags */
-				strcpy( flags, "H" );
+				if (strchr(Client_Modes( c ), 'a'))
+					strcpy(flags, "G"); /* away */
+				else
+					strcpy(flags, "H");
+
 				if( strchr( Client_Modes( c ), 'o' )) strlcat( flags, "*", sizeof( flags ));
 
 				/* Search suitable channel */
@@ -1082,10 +1086,12 @@ IRC_Send_WHO( CLIENT *Client, CHANNEL *Chan, bool OnlyOps )
 		if( strchr( Client_Modes( c ), 'i' )) is_visible = false;
 		else is_visible = true;
 
-		if( is_member || is_visible )
+		if( is_member || is_visible ) {
-		{
+			if (strchr(Client_Modes( c ), 'a'))
-			/* Flags zusammenbasteln */
+				strcpy(flags, "G"); /* away */
-			strcpy( flags, "H" );
+			else
+				strcpy(flags, "H");
+
 			if( strchr( Client_Modes( c ), 'o' )) strlcat( flags, "*", sizeof( flags ));
 			if( strchr( Channel_UserModes( Chan, c ), 'o' )) strlcat( flags, "@", sizeof( flags ));
 			else if( strchr( Channel_UserModes( Chan, c ), 'v' )) strlcat( flags, "+", sizeof( flags ));

src/ngircd/irc-login.c

@@ -14,7 +14,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: irc-login.c,v 1.54 2007/11/21 12:16:36 alex Exp $";
+static char UNUSED id[] = "$Id: irc-login.c,v 1.54.2.1 2008/02/05 11:48:37 fw Exp $";
 
 #include "imp.h"
 #include <assert.h>
@@ -601,8 +601,8 @@ Hello_User( CLIENT *Client )
 	/* Version and system type */
 #ifdef CVSDATE
 	strlcpy( ver, CVSDATE, sizeof( ver ));
-	strncpy( ver + 4, ver + 5, 2 );
+	memmove( ver + 4, ver + 5, 2 );
-	strncpy( ver + 6, ver + 8, 3 );
+	memmove( ver + 6, ver + 8, 3 );
 	snprintf( vertxt, sizeof( vertxt ), "%s(%s)", PACKAGE_VERSION, ver );
 	if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )), vertxt, TARGET_CPU, TARGET_VENDOR, TARGET_OS )) return false;
 #else

src/ngircd/irc-mode.c

@@ -14,7 +14,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: irc-mode.c,v 1.50 2007/10/14 12:08:57 alex Exp $";
+static char UNUSED id[] = "$Id: irc-mode.c,v 1.50.2.1 2008/02/16 11:26:12 fw Exp $";
 
 #include "imp.h"
 #include <assert.h>
@@ -317,7 +317,7 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 	/* Prepare reply string */
 	if( set ) strcpy( the_modes, "+" );
 	else strcpy( the_modes, "-" );
-	strcpy( the_args, " " );
+	the_args[0] = '\0';
 
 	x[1] = '\0';
 	ok = CONNECTED;
@@ -528,8 +528,8 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 				/* Channel-User-Mode */
 				if( Channel_UserModeAdd( Channel, client, x[0] ))
 				{
-					strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 					strlcat( the_args, " ", sizeof( the_args ));
+					strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 					strlcat( the_modes, x, sizeof( the_modes ));
 					Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 				}
@@ -552,8 +552,8 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 				/* Channel-User-Mode */
 				if( Channel_UserModeDel( Channel, client, x[0] ))
 				{
-					strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 					strlcat( the_args, " ", sizeof( the_args ));
+					strlcat( the_args, Client_ID( client ), sizeof( the_args ));
 					strlcat( the_modes, x, sizeof( the_modes ));
 					Log( LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"", Client_Mask( client ), Channel_Name( Channel ), Channel_UserModes( Channel, client ));
 				}
@@ -572,8 +572,7 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
 		/* Are there additional arguments to add? */
 		if( argadd[0] )
 		{
-			len = strlen( the_args ) - 1;
+			strlcat( the_args, " ", sizeof( the_args ));
-			if( the_args[len] != ' ' ) strlcat( the_args, " ", sizeof( the_args ));
 			strlcat( the_args, argadd, sizeof( the_args ));
 		}
 	}
@@ -586,9 +585,6 @@ chan_exit:
 		len = strlen( the_modes ) - 1;
 		if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
 
-		/* Clean up argument string if there are none */
-		if( ! the_args[1] ) the_args[0] = '\0';
-
 		if( Client_Type( Client ) == CLIENT_SERVER )
 		{
 			/* Forward mode changes to channel users and other servers */

src/ngircd/parse.c

@@ -12,7 +12,7 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: parse.c,v 1.69 2007/11/21 12:16:36 alex Exp $";
+static char UNUSED id[] = "$Id: parse.c,v 1.69.2.1 2008/02/05 13:11:20 fw Exp $";
 
 /**
  * @file
@@ -358,7 +358,7 @@ Handle_Request( CONN_ID Idx, REQUEST *Req )
 	bool result;
 	COMMAND *cmd;
 	NUMERIC *num;
-	int i;
+	int i, client_type;
 
 	assert( Idx >= 0 );
 	assert( Req != NULL );
@@ -436,6 +436,7 @@ Handle_Request( CONN_ID Idx, REQUEST *Req )
 	}
 
 	cmd = My_Commands;
+	client_type = Client_Type(client);
 	while( cmd->name )
 	{
 		/* Befehl suchen */
@@ -444,7 +445,7 @@ Handle_Request( CONN_ID Idx, REQUEST *Req )
 			cmd++; continue;
 		}
 
-		if( Client_Type( client ) & cmd->type )
+		if( client_type & cmd->type )
 		{
 			/* Command is allowed for this client: call it and count produced bytes */
 			Conn_ResetWCounter( );
@@ -452,7 +453,7 @@ Handle_Request( CONN_ID Idx, REQUEST *Req )
 			cmd->bytes += Conn_WCounter( );
 
 			/* Adjust counters */
-			if( Client_Type( client ) != CLIENT_SERVER ) cmd->lcount++;
+			if( client_type != CLIENT_SERVER ) cmd->lcount++;
 			else cmd->rcount++;
 
 			return result;

src/testsuite/mode-test.e

@@ -1,4 +1,4 @@
-# $Id: mode-test.e,v 1.6 2004/03/10 20:40:06 alex Exp $
+# $Id: mode-test.e,v 1.6.8.1 2008/02/16 11:26:13 fw Exp $
 
 spawn telnet localhost 6789
 expect {
@@ -72,7 +72,7 @@ expect {
 send "mode #channel +v nick\r"
 expect {
 	timeout { exit 1 }
-	"@* MODE #channel +v nick"
+	"@* MODE #channel +v nick\r"
 }
 
 send "mode #channel +I nick1\r"
@@ -96,7 +96,7 @@ expect {
 send "mode #channel -vo nick nick\r"
 expect {
 	timeout { exit 1 }
-	"@* MODE #channel -vo nick nick"
+	"@* MODE #channel -vo nick nick\r"
 }
 
 send "quit\r"