/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
*
- * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
- * der GNU General Public License (GPL), wie von der Free Software Foundation
- * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
- * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
- * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
- * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
- *
- * $Id: irc-info.c,v 1.4 2002/12/02 13:45:51 alex Exp $
- *
- * irc-info.c: IRC-Info-Befehle
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * Please read the file COPYING, README and AUTHORS for more information.
*/
-
#include "portab.h"
+/**
+ * @file
+ * IRC info commands
+ */
+
#include "imp.h"
#include <assert.h>
#include <errno.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <strings.h>
#include "ngircd.h"
-#include "conn.h"
-#include "client.h"
+#include "conn-func.h"
+#include "conn-zip.h"
#include "channel.h"
-#include "resolve.h"
#include "conf.h"
#include "defines.h"
#include "log.h"
#include "messages.h"
+#include "match.h"
#include "tool.h"
#include "parse.h"
#include "irc-write.h"
#include "irc-info.h"
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_ADMIN(CLIENT *Client, REQUEST *Req )
{
CLIENT *target, *prefix;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- /* Ziel suchen */
+ /* find target ... */
if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
else target = Client_ThisServer( );
- /* Prefix ermitteln */
+ /* find Prefix */
if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
else prefix = Client;
- if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
+ if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
- /* An anderen Server weiterleiten? */
+ /* forwad message to another server? */
if( target != Client_ThisServer( ))
{
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
- /* forwarden */
+ /* forward */
IRC_WriteStrClientPrefix( target, prefix, "ADMIN %s", Req->argv[0] );
return CONNECTED;
}
if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC2_MSG, Client_ID( prefix ), Conf_ServerAdmin2 )) return DISCONNECTED;
if( ! IRC_WriteStrClient( Client, RPL_ADMINEMAIL_MSG, Client_ID( prefix ), Conf_ServerAdminMail )) return DISCONNECTED;
+ IRC_SetPenalty( Client, 1 );
return CONNECTED;
} /* IRC_ADMIN */
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC command "INFO".
+ * See RFC 2812 section 3.4.10.
+ */
+GLOBAL bool
+IRC_INFO(CLIENT * Client, REQUEST * Req)
+{
+ CLIENT *target, *prefix;
+ char msg[510];
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ /* Wrong number of parameters? */
+ if (Req->argc > 1)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Determine prefix */
+ if (Client_Type(Client) == CLIENT_SERVER)
+ prefix = Client_Search(Req->prefix);
+ else
+ prefix = Client;
+ if (!prefix)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ /* Look for a target */
+ if (Req->argc > 0)
+ target = Client_Search(Req->argv[0]);
+ else
+ target = Client_ThisServer();
+
+ /* Make sure that the target is a server */
+ if (target && Client_Type(target) != CLIENT_SERVER)
+ target = Client_Introducer(target);
+
+ if (!target)
+ return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
+ Client_ID(prefix), Req->argv[0]);
+
+ /* Pass on to another server? */
+ if (target != Client_ThisServer()) {
+ IRC_WriteStrClientPrefix(target, prefix, "INFO %s",
+ Req->argv[0]);
+ return CONNECTED;
+ }
+
+ if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix),
+ NGIRCd_Version))
+ return DISCONNECTED;
+
+#if defined(__DATE__) && defined(__TIME__)
+ snprintf(msg, sizeof(msg), "Birth Date: %s at %s", __DATE__, __TIME__);
+ if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix), msg))
+ return DISCONNECTED;
+#endif
+
+ strlcpy(msg, "On-line since ", sizeof(msg));
+ strlcat(msg, NGIRCd_StartStr, sizeof(msg));
+ if (!IRC_WriteStrClient(Client, RPL_INFO_MSG, Client_ID(prefix), msg))
+ return DISCONNECTED;
+
+ if (!IRC_WriteStrClient(Client, RPL_ENDOFINFO_MSG, Client_ID(prefix)))
+ return DISCONNECTED;
+
+ IRC_SetPenalty(Client, 2);
+ return CONNECTED;
+} /* IRC_INFO */
+
+
+GLOBAL bool
IRC_ISON( CLIENT *Client, REQUEST *Req )
{
- CHAR rpl[COMMAND_LEN];
+ char rpl[COMMAND_LEN];
CLIENT *c;
- CHAR *ptr;
- INT i;
+ char *ptr;
+ int i;
assert( Client != NULL );
assert( Req != NULL );
/* Falsche Anzahl Parameter? */
if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- strcpy( rpl, RPL_ISON_MSG );
+ strlcpy( rpl, RPL_ISON_MSG, sizeof rpl );
for( i = 0; i < Req->argc; i++ )
{
ptr = strtok( Req->argv[i], " " );
if( c && ( Client_Type( c ) == CLIENT_USER ))
{
/* Dieser Nick ist "online" */
- strcat( rpl, ptr );
- strcat( rpl, " " );
+ strlcat( rpl, ptr, sizeof( rpl ));
+ strlcat( rpl, " ", sizeof( rpl ));
}
ptr = strtok( NULL, " " );
}
}
- if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
+ ngt_TrimLastChr(rpl, ' ');
return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
} /* IRC_ISON */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_LINKS( CLIENT *Client, REQUEST *Req )
{
CLIENT *target, *from, *c;
- CHAR *mask;
+ char *mask;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
/* Server-Mask ermitteln */
if( Req->argc == 2 )
{
target = Client_Search( Req->argv[0] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
}
}
c = Client_Next( c );
}
-
+
+ IRC_SetPenalty( target, 1 );
return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
} /* IRC_LINKS */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_LUSERS( CLIENT *Client, REQUEST *Req )
{
CLIENT *target, *from;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
/* Absender ermitteln */
if( Req->argc == 2 )
{
target = Client_Search( Req->argv[1] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
}
IRC_Send_LUSERS( target );
+ IRC_SetPenalty( target, 1 );
return CONNECTED;
} /* IRC_LUSERS */
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC command "SERVLIST".
+ * List registered services, see RFC 2811, section 3.5.1: the syntax is
+ * "SERVLIST [<mask> [<type>]]".
+ */
+GLOBAL bool
+IRC_SERVLIST(CLIENT *Client, REQUEST *Req)
+{
+ CLIENT *c;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ if (Req->argc < 2 || strcmp(Req->argv[1], "0") == 0) {
+ for (c = Client_First(); c!= NULL; c = Client_Next(c)) {
+ if (Client_Type(c) != CLIENT_SERVICE)
+ continue;
+ if (Req->argc > 0 && !MatchCaseInsensitive(Req->argv[0],
+ Client_ID(c)))
+ continue;
+ if (!IRC_WriteStrClient(Client, RPL_SERVLIST_MSG,
+ Client_ID(Client), Client_Mask(c),
+ Client_Mask(Client_Introducer(c)), "*",
+ 0, Client_Hops(c), Client_Info(c)))
+ return DISCONNECTED;
+ }
+ }
+
+ return IRC_WriteStrClient(Client, RPL_SERVLISTEND_MSG, Client_ID(Client),
+ Req->argc > 0 ? Req->argv[0] : "*",
+ Req->argc > 1 ? Req->argv[1] : "0");
+} /* IRC_SERVLIST */
+
+
+GLOBAL bool
IRC_MOTD( CLIENT *Client, REQUEST *Req )
{
CLIENT *from, *target;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
/* From aus Prefix ermitteln */
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
- if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
+ if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
if( Req->argc == 1 )
{
- /* an anderen Server forwarden */
+ /* forward? */
target = Client_Search( Req->argv[0] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
if( target != Client_ThisServer( ))
{
}
}
+ IRC_SetPenalty( from, 3 );
return IRC_Show_MOTD( from );
} /* IRC_MOTD */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_NAMES( CLIENT *Client, REQUEST *Req )
{
- CHAR rpl[COMMAND_LEN], *ptr;
+ char rpl[COMMAND_LEN], *ptr;
CLIENT *target, *from, *c;
CHANNEL *chan;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- /* From aus Prefix ermitteln */
+ /* use prefix to determine "From" */
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
- if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
+ if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
if( Req->argc == 2 )
{
- /* an anderen Server forwarden */
+ /* forward to another server? */
target = Client_Search( Req->argv[1] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
- if( target != Client_ThisServer( ))
- {
- /* Ok, anderer Server ist das Ziel: forwarden */
+ if( target != Client_ThisServer( )) {
+ /* target is another server, forward */
return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] );
}
}
chan = Channel_Search( ptr );
if( chan )
{
- /* Namen ausgeben */
+ /* print name */
if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
}
if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED;
- /* naechsten Namen ermitteln */
+ /* get next channel name */
ptr = strtok( NULL, "," );
}
return CONNECTED;
}
- /* alle Channels durchgehen */
chan = Channel_First( );
while( chan )
{
- /* Namen ausgeben */
if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
- /* naechster Channel */
chan = Channel_Next( chan );
}
- /* Nun noch alle Clients ausgeben, die in keinem Channel sind */
+ /* Now print all clients which are not in any channel */
c = Client_First( );
- sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
+ snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
while( c )
{
if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' )))
{
- /* Okay, das ist ein User: anhaengen */
- if( rpl[strlen( rpl ) - 1] != ':' ) strcat( rpl, " " );
- strcat( rpl, Client_ID( c ));
+ /* its a user, concatenate ... */
+ if( rpl[strlen( rpl ) - 1] != ':' ) strlcat( rpl, " ", sizeof( rpl ));
+ strlcat( rpl, Client_ID( c ), sizeof( rpl ));
if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
{
- /* Zeile wird zu lang: senden! */
+ /* Line is gwoing too long, send now */
if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
- sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
+ snprintf( rpl, sizeof( rpl ), RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
}
}
- /* naechster Client */
c = Client_Next( c );
}
if( rpl[strlen( rpl ) - 1] != ':')
{
- /* es wurden User gefunden */
if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
}
+ IRC_SetPenalty( from, 1 );
return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" );
} /* IRC_NAMES */
-GLOBAL BOOLEAN
-IRC_STATS( CLIENT *Client, REQUEST *Req )
+static unsigned int
+t_diff(time_t *t, const time_t d)
{
- CLIENT *from, *target, *cl;
- CONN_ID con;
- CHAR query;
+ time_t diff, remain;
- assert( Client != NULL );
- assert( Req != NULL );
+ diff = *t / d;
+ remain = diff * d;
+ *t -= remain;
- /* Falsche Anzahl Parameter? */
- if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ return (unsigned int)diff;
+}
- /* From aus Prefix ermitteln */
- if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
- else from = Client;
- if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
- if( Req->argc == 2 )
- {
- /* an anderen Server forwarden */
- target = Client_Search( Req->argv[1] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
+static unsigned int
+uptime_days(time_t *now)
+{
+ return t_diff(now, 60 * 60 * 24);
+}
- if( target != Client_ThisServer( ))
- {
- /* Ok, anderer Server ist das Ziel: forwarden */
- return IRC_WriteStrClientPrefix( target, from, "STATS %s", Req->argv[0], Req->argv[1] );
+
+static unsigned int
+uptime_hrs(time_t *now)
+{
+ return t_diff(now, 60 * 60);
+}
+
+
+static unsigned int
+uptime_mins(time_t *now)
+{
+ return t_diff(now, 60);
+}
+
+
+/**
+ * Handler for the IRC command "STATS".
+ * See RFC 2812 section 3.4.4.
+ */
+GLOBAL bool
+IRC_STATS( CLIENT *Client, REQUEST *Req )
+{
+ CLIENT *from, *target, *cl;
+ CONN_ID con;
+ char query;
+ COMMAND *cmd;
+ time_t time_now;
+ unsigned int days, hrs, mins;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* use prefix to determine "From" */
+ if (Client_Type(Client) == CLIENT_SERVER)
+ from = Client_Search(Req->prefix);
+ else
+ from = Client;
+
+ if (!from)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ if (Req->argc == 2) {
+ /* forward to another server? */
+ target = Client_Search(Req->argv[1]);
+ if ((!target) || (Client_Type(target) != CLIENT_SERVER))
+ return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from), Req->argv[1]);
+
+ if (target != Client_ThisServer()) {
+ /* forward to another server */
+ return IRC_WriteStrClientPrefix(target, from,
+ "STATS %s %s", Req->argv[0], Req->argv[1]);
}
}
- if( Req->argc > 0 ) query = Req->argv[0][0] ? Req->argv[0][0] : '*';
- else query = '*';
-
- switch ( query )
- {
- case 'l': /* Links */
- case 'L':
- con = Conn_First( );
- while( con != NONE )
- {
- cl = Client_GetFromConn( con );
- if( cl )
- {
-#ifdef USE_ZLIB
- if( Conn_Options( con ) & CONN_ZIP )
- {
- if( ! IRC_WriteStrClient( from, RPL_STATSLINKINFOZIP_MSG, Client_ID( from ), Client_Mask( cl ), Conn_SendQ( con ), Conn_SendMsg( con ), Conn_SendBytesZip( con ), Conn_SendBytes( con ), Conn_RecvMsg( con ), Conn_RecvBytesZip( con ), Conn_RecvBytes( con ), (LONG)( time( NULL ) - Conn_StartTime( con )))) return DISCONNECTED;
- }
- else
-#endif
- {
- if( ! IRC_WriteStrClient( from, RPL_STATSLINKINFO_MSG, Client_ID( from ), Client_Mask( cl ), Conn_SendQ( con ), Conn_SendMsg( con ), Conn_SendBytes( con ), Conn_RecvMsg( con ), Conn_RecvBytes( con ), (LONG)( time( NULL ) - Conn_StartTime( con )))) return DISCONNECTED;
- }
+ if (Req->argc > 0)
+ query = Req->argv[0][0] ? Req->argv[0][0] : '*';
+ else
+ query = '*';
+
+ switch (query) {
+ case 'l': /* Link status (servers and own link) */
+ case 'L':
+ time_now = time(NULL);
+ for (con = Conn_First(); con != NONE; con = Conn_Next(con)) {
+ cl = Conn_GetClient(con);
+ if (!cl)
+ continue;
+ if ((Client_Type(cl) == CLIENT_SERVER)
+ || (cl == Client)) {
+ /* Server link or our own connection */
+#ifdef ZLIB
+ if (Conn_Options(con) & CONN_ZIP) {
+ if (!IRC_WriteStrClient
+ (from, RPL_STATSLINKINFOZIP_MSG,
+ Client_ID(from), Client_Mask(cl),
+ Conn_SendQ(con), Conn_SendMsg(con),
+ Zip_SendBytes(con),
+ Conn_SendBytes(con),
+ Conn_RecvMsg(con),
+ Zip_RecvBytes(con),
+ Conn_RecvBytes(con),
+ (long)(time_now - Conn_StartTime(con))))
+ return DISCONNECTED;
+ continue;
}
- con = Conn_Next( con );
+#endif
+ if (!IRC_WriteStrClient
+ (from, RPL_STATSLINKINFO_MSG,
+ Client_ID(from), Client_Mask(cl),
+ Conn_SendQ(con), Conn_SendMsg(con),
+ Conn_SendBytes(con), Conn_RecvMsg(con),
+ Conn_RecvBytes(con),
+ (long)(time_now - Conn_StartTime(con))))
+ return DISCONNECTED;
}
- break;
- case 'm': /* IRC-Befehle */
- case 'M':
- break;
+ }
+ break;
+ case 'm': /* IRC command status (usage count) */
+ case 'M':
+ cmd = Parse_GetCommandStruct();
+ for (; cmd->name; cmd++) {
+ if (cmd->lcount == 0 && cmd->rcount == 0)
+ continue;
+ if (!IRC_WriteStrClient
+ (from, RPL_STATSCOMMANDS_MSG, Client_ID(from),
+ cmd->name, cmd->lcount, cmd->bytes, cmd->rcount))
+ return DISCONNECTED;
+ }
+ break;
+ case 'u': /* Server uptime */
+ case 'U':
+ time_now = time(NULL) - NGIRCd_Start;
+ days = uptime_days(&time_now);
+ hrs = uptime_hrs(&time_now);
+ mins = uptime_mins(&time_now);
+ if (!IRC_WriteStrClient(from, RPL_STATSUPTIME, Client_ID(from),
+ days, hrs, mins, (unsigned int)time_now))
+ return DISCONNECTED;
+ break;
}
- return IRC_WriteStrClient( from, RPL_ENDOFSTATS_MSG, Client_ID( from ), query );
+ IRC_SetPenalty(from, 2);
+ return IRC_WriteStrClient(from, RPL_ENDOFSTATS_MSG,
+ Client_ID(from), query);
} /* IRC_STATS */
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC command "SUMMON".
+ * See RFC 2812 section 4.5. ngIRCd doesn't implement this functionality and
+ * therefore answers with ERR_SUMMONDISABLED.
+ */
+GLOBAL bool
+IRC_SUMMON(CLIENT * Client, REQUEST * Req)
+{
+ return IRC_WriteStrClient(Client, ERR_SUMMONDISABLED_MSG,
+ Client_ID(Client), Req->command);
+} /* IRC_SUMMON */
+
+
+GLOBAL bool
IRC_TIME( CLIENT *Client, REQUEST *Req )
{
CLIENT *from, *target;
- CHAR t_str[64];
+ char t_str[64];
time_t t;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- /* From aus Prefix ermitteln */
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
- if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
+ if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
if( Req->argc == 1 )
{
- /* an anderen Server forwarden */
target = Client_Search( Req->argv[0] );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
if( target != Client_ThisServer( ))
{
- /* Ok, anderer Server ist das Ziel: forwarden */
return IRC_WriteStrClientPrefix( target, from, "TIME %s", Req->argv[0] );
}
}
t = time( NULL );
- (VOID)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %z", localtime( &t ));
+ (void)strftime( t_str, 60, "%A %B %d %Y -- %H:%M %Z", localtime( &t ));
return IRC_WriteStrClient( from, RPL_TIME_MSG, Client_ID( from ), Client_ID( Client_ThisServer( )), t_str );
} /* IRC_TIME */
-GLOBAL BOOLEAN
-IRC_USERHOST( CLIENT *Client, REQUEST *Req )
+/**
+ * Handler for the IRC command "USERHOST".
+ * See RFC 2812 section 4.8.
+ */
+GLOBAL bool
+IRC_USERHOST(CLIENT *Client, REQUEST *Req)
{
- CHAR rpl[COMMAND_LEN];
+ char rpl[COMMAND_LEN];
CLIENT *c;
- INT max, i;
-
- assert( Client != NULL );
- assert( Req != NULL );
-
- /* Falsche Anzahl Parameter? */
- if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- if( Req->argc > 5 ) max = 5;
- else max = Req->argc;
-
- strcpy( rpl, RPL_USERHOST_MSG );
- for( i = 0; i < max; i++ )
- {
- c = Client_Search( Req->argv[i] );
- if( c && ( Client_Type( c ) == CLIENT_USER ))
- {
- /* Dieser Nick ist "online" */
- strcat( rpl, Client_ID( c ));
- if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
- strcat( rpl, "=" );
- if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
- else strcat( rpl, "+" );
- strcat( rpl, Client_User( c ));
- strcat( rpl, "@" );
- strcat( rpl, Client_Hostname( c ));
- strcat( rpl, " " );
+ int max, i;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if ((Req->argc < 1))
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ if (Req->argc > 5)
+ max = 5;
+ else
+ max = Req->argc;
+
+ strlcpy(rpl, RPL_USERHOST_MSG, sizeof rpl);
+ for (i = 0; i < max; i++) {
+ c = Client_Search(Req->argv[i]);
+ if (c && (Client_Type(c) == CLIENT_USER)) {
+ /* This Nick is "online" */
+ strlcat(rpl, Client_ID(c), sizeof(rpl));
+ if (Client_HasMode(c, 'o'))
+ strlcat(rpl, "*", sizeof(rpl));
+ strlcat(rpl, "=", sizeof(rpl));
+ if (Client_HasMode(c, 'a'))
+ strlcat(rpl, "-", sizeof(rpl));
+ else
+ strlcat(rpl, "+", sizeof(rpl));
+ strlcat(rpl, Client_User(c), sizeof(rpl));
+ strlcat(rpl, "@", sizeof(rpl));
+ strlcat(rpl, Client_HostnameCloaked(c), sizeof(rpl));
+ strlcat(rpl, " ", sizeof(rpl));
}
}
- if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
+ ngt_TrimLastChr(rpl, ' ');
- return IRC_WriteStrClient( Client, rpl, Client_ID( Client ) );
+ return IRC_WriteStrClient(Client, rpl, Client_ID(Client));
} /* IRC_USERHOST */
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC command "USERS".
+ * See RFC 2812 section 4.6. As suggested there the command is disabled.
+ */
+GLOBAL bool
+IRC_USERS(CLIENT * Client, REQUEST * Req)
+{
+ return IRC_WriteStrClient(Client, ERR_USERSDISABLED_MSG,
+ Client_ID(Client), Req->command);
+} /* IRC_USERS */
+
+
+GLOBAL bool
IRC_VERSION( CLIENT *Client, REQUEST *Req )
{
CLIENT *target, *prefix;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
/* Ziel suchen */
/* Prefix ermitteln */
if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
else prefix = Client;
- if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
+ if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
/* An anderen Server weiterleiten? */
if( target != Client_ThisServer( ))
{
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
+ if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( prefix, ERR_NOSUCHSERVER_MSG, Client_ID( prefix ), Req->argv[0] );
/* forwarden */
IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
return CONNECTED;
}
- /* mit Versionsinfo antworten */
- return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE, VERSION, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition( ));
+ /* send version information */
+ IRC_SetPenalty(Client, 1);
+ return IRC_WriteStrClient(Client, RPL_VERSION_MSG, Client_ID(prefix),
+ PACKAGE_NAME, PACKAGE_VERSION,
+ NGIRCd_DebugLevel, Conf_ServerName,
+ NGIRCd_VersionAddition);
} /* IRC_VERSION */
-GLOBAL BOOLEAN
+static bool
+write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
+{
+ return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client),
+ channelname, Client_User(c),
+ Client_HostnameCloaked(c),
+ Client_ID(Client_Introducer(c)), Client_ID(c),
+ flags, Client_Hops(c), Client_Info(c));
+}
+
+
+static const char *
+who_flags_status(const char *client_modes)
+{
+ if (strchr(client_modes, 'a'))
+ return "G"; /* away */
+ return "H";
+}
+
+
+static const char *
+who_flags_qualifier(const char *chan_user_modes)
+{
+ if (strchr(chan_user_modes, 'o'))
+ return "@";
+ else if (strchr(chan_user_modes, 'v'))
+ return "+";
+ return "";
+}
+
+
+static bool
+IRC_Send_WHO(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
+{
+ bool is_visible, is_member, is_ircop;
+ CL2CHAN *cl2chan;
+ const char *client_modes;
+ const char *chan_user_modes;
+ char flags[8];
+ CLIENT *c;
+
+ assert( Client != NULL );
+ assert( Chan != NULL );
+
+ is_member = Channel_IsMemberOf(Chan, Client);
+
+ /* Secret channel? */
+ if (!is_member && strchr(Channel_Modes(Chan), 's'))
+ return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
+
+ cl2chan = Channel_FirstMember(Chan);
+ for (; cl2chan ; cl2chan = Channel_NextMember(Chan, cl2chan)) {
+ c = Channel_GetClient(cl2chan);
+
+ client_modes = Client_Modes(c);
+ is_ircop = strchr(client_modes, 'o') != NULL;
+ if (OnlyOps && !is_ircop)
+ continue;
+
+ is_visible = strchr(client_modes, 'i') == NULL;
+ if (is_member || is_visible) {
+ strcpy(flags, who_flags_status(client_modes));
+ if (is_ircop)
+ strlcat(flags, "*", sizeof(flags));
+
+ chan_user_modes = Channel_UserModes(Chan, c);
+ strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
+
+ if (!write_whoreply(Client, c, Channel_Name(Chan), flags))
+ return DISCONNECTED;
+ }
+ }
+ return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), Channel_Name(Chan));
+} /* IRC_Send_WHO */
+
+
+GLOBAL bool
IRC_WHO( CLIENT *Client, REQUEST *Req )
{
- BOOLEAN ok, only_ops;
- CHAR flags[8], *ptr;
+ bool only_ops, have_arg, client_match;
+ const char *channelname, *client_modes, *chan_user_modes;
+ char pattern[COMMAND_LEN];
+ char flags[4];
CL2CHAN *cl2chan;
- CHANNEL *chan;
+ CHANNEL *chan, *cn;
CLIENT *c;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (Req->argc > 2)
+ return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- only_ops = FALSE;
- chan = NULL;
+ only_ops = false;
+ have_arg = false;
- if( Req->argc == 2 )
- {
- /* Nur OPs anzeigen? */
- if( strcmp( Req->argv[1], "o" ) == 0 ) only_ops = TRUE;
+ if (Req->argc == 2) {
+ if (strcmp(Req->argv[1], "o") == 0)
+ only_ops = true;
#ifdef STRICT_RFC
- else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ else return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
#endif
}
- if( Req->argc >= 1 )
- {
- /* wurde ein Channel oder Nick-Mask angegeben? */
- chan = Channel_Search( Req->argv[0] );
+ IRC_SetPenalty(Client, 1);
+ if (Req->argc >= 1) { /* Channel or Mask. */
+ chan = Channel_Search(Req->argv[0]);
+ if (chan)
+ return IRC_Send_WHO(Client, chan, only_ops);
+ if (strcmp(Req->argv[0], "0") != 0) { /* RFC stupidity, same as no arguments */
+ have_arg = true;
+ strlcpy(pattern, Req->argv[0], sizeof(pattern));
+ ngt_LowerStr(pattern);
+ IRC_SetPenalty(Client, 3);
+ }
}
- if( chan )
- {
- /* User eines Channels ausgeben */
- if( ! IRC_Send_WHO( Client, chan, only_ops )) return DISCONNECTED;
- }
+ for (c = Client_First(); c != NULL; c = Client_Next(c)) {
+ if (Client_Type(c) != CLIENT_USER)
+ continue;
+ /*
+ * RFC 2812, 3.6.1:
+ * In the absence of the parameter, all visible (users who aren't
+ * invisible (user mode +i) and who don't have a common channel
+ * with the requesting client) are listed.
+ *
+ * The same result can be achieved by using a [sic] of "0"
+ * or any wildcard which will end up matching every visible user.
+ *
+ * The [sic] passed to WHO is matched against users' host, server, real name and
+ * nickname if the channel cannot be found.
+ */
+ client_modes = Client_Modes(c);
+ if (strchr(client_modes, 'i'))
+ continue;
+
+ if (only_ops && !strchr(client_modes, 'o'))
+ continue;
+
+ if (have_arg) { /* match pattern against user host/server/name/nick */
+ client_match = MatchCaseInsensitive(pattern, Client_Hostname(c)); /* user's host */
+ if (!client_match)
+ client_match = MatchCaseInsensitive(pattern, Client_ID(Client_Introducer(c))); /* server */
+ if (!client_match)
+ client_match = Match(Req->argv[0], Client_Info(c)); /* realname */
+ if (!client_match)
+ client_match = MatchCaseInsensitive(pattern, Client_ID(c)); /* nick name */
+
+ if (!client_match) /* This isn't the client you're looking for */
+ continue;
+ }
- c = Client_First( );
- while( c )
- {
- if(( Client_Type( c ) == CLIENT_USER ) && ( ! strchr( Client_Modes( c ), 'i' )))
- {
- ok = FALSE;
- if( Req->argc == 0 ) ok = TRUE;
- else
- {
- if( strcasecmp( Req->argv[0], Client_ID( c )) == 0 ) ok = TRUE;
- else if( strcmp( Req->argv[0], "0" ) == 0 ) ok = TRUE;
- }
+ strcpy(flags, who_flags_status(client_modes));
- if( ok && (( ! only_ops ) || ( strchr( Client_Modes( c ), 'o' ))))
+ if (strchr(client_modes, 'o')) /* this client is an operator */
+ strlcat(flags, "*", sizeof(flags));
+
+ /* Search suitable channel */
+ cl2chan = Channel_FirstChannelOf(c);
+ while (cl2chan) {
+ cn = Channel_GetChannel(cl2chan);
+ if (Channel_IsMemberOf(cn, Client) ||
+ !strchr(Channel_Modes(cn), 's'))
{
- /* Flags zusammenbasteln */
- strcpy( flags, "H" );
- if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" );
-
- /* ausgeben */
- cl2chan = Channel_FirstChannelOf( c );
- if( cl2chan ) ptr = Channel_Name( Channel_GetChannel( cl2chan ));
- else ptr = "*";
- if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), ptr, Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
+ channelname = Channel_Name(cn);
+ break;
}
+ cl2chan = Channel_NextChannelOf(c, cl2chan);
}
-
- /* naechster Client */
- c = Client_Next( c );
+ if (cl2chan) {
+ chan = Channel_GetChannel(cl2chan);
+ chan_user_modes = Channel_UserModes(chan, c);
+ strlcat(flags, who_flags_qualifier(chan_user_modes), sizeof(flags));
+ } else
+ channelname = "*";
+
+ if (!write_whoreply(Client, c, channelname, flags))
+ return DISCONNECTED;
}
- if( chan ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Channel_Name( chan ));
- else if( Req->argc == 0 ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), "*" );
- else return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Req->argv[0] );
+ if (Req->argc > 0)
+ channelname = Req->argv[0];
+ else
+ channelname = "*";
+
+ return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG, Client_ID(Client), channelname);
} /* IRC_WHO */
-GLOBAL BOOLEAN
-IRC_WHOIS( CLIENT *Client, REQUEST *Req )
+/**
+ * Generate WHOIS reply of one actual client.
+ *
+ * @param Client The client from which this command has been received.
+ * @param from The client requesting the information ("originator").
+ * @param c The client of which information should be returned.
+ * @returns CONNECTED or DISCONNECTED.
+ */
+static bool
+IRC_WHOIS_SendReply(CLIENT *Client, CLIENT *from, CLIENT *c)
{
- CLIENT *from, *target, *c;
- CHAR str[LINE_LEN + 1], *ptr = NULL;
+ char str[LINE_LEN + 1];
CL2CHAN *cl2chan;
CHANNEL *chan;
- assert( Client != NULL );
- assert( Req != NULL );
-
- /* Falsche Anzahl Parameter? */
- if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- /* Client suchen */
- c = Client_Search( Req->argv[Req->argc - 1] );
- if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
+ /* Nick, user, hostname and client info */
+ if (!IRC_WriteStrClient(from, RPL_WHOISUSER_MSG, Client_ID(from),
+ Client_ID(c), Client_User(c),
+ Client_HostnameCloaked(c), Client_Info(c)))
+ return DISCONNECTED;
- /* Empfaenger des WHOIS suchen */
- if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
- else from = Client;
- if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
+ /* Server */
+ if (!IRC_WriteStrClient(from, RPL_WHOISSERVER_MSG, Client_ID(from),
+ Client_ID(c), Client_ID(Client_Introducer(c)),
+ Client_Info(Client_Introducer(c))))
+ return DISCONNECTED;
- /* Forwarden an anderen Server? */
- if( Req->argc > 1 )
- {
- /* angegebenen Ziel-Server suchen */
- target = Client_Search( Req->argv[1] );
- if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
- ptr = Req->argv[1];
+ /* Channels */
+ snprintf(str, sizeof(str), RPL_WHOISCHANNELS_MSG,
+ Client_ID(from), Client_ID(c));
+ cl2chan = Channel_FirstChannelOf(c);
+ while (cl2chan) {
+ chan = Channel_GetChannel(cl2chan);
+ assert(chan != NULL);
+
+ /* next */
+ cl2chan = Channel_NextChannelOf(c, cl2chan);
+
+ /* Secret channel? */
+ if (strchr(Channel_Modes(chan), 's')
+ && !Channel_IsMemberOf(chan, Client))
+ continue;
+
+ /* Local channel and request is not from a user? */
+ if (Client_Type(Client) == CLIENT_SERVER
+ && Channel_IsLocal(chan))
+ continue;
+
+ /* Concatenate channel names */
+ if (str[strlen(str) - 1] != ':')
+ strlcat(str, " ", sizeof(str));
+
+ strlcat(str, who_flags_qualifier(Channel_UserModes(chan, c)),
+ sizeof(str));
+ strlcat(str, Channel_Name(chan), sizeof(str));
+
+ if (strlen(str) > (LINE_LEN - CHANNEL_NAME_LEN - 4)) {
+ /* Line becomes too long: send it! */
+ if (!IRC_WriteStrClient(Client, "%s", str))
+ return DISCONNECTED;
+ snprintf(str, sizeof(str), RPL_WHOISCHANNELS_MSG,
+ Client_ID(from), Client_ID(c));
+ }
+ }
+ if(str[strlen(str) - 1] != ':') {
+ /* There is data left to send: */
+ if (!IRC_WriteStrClient(Client, "%s", str))
+ return DISCONNECTED;
}
- else target = Client_ThisServer( );
- assert( target != NULL );
+ /* IRC-Operator? */
+ if (Client_HasMode(c, 'o') &&
+ !IRC_WriteStrClient(from, RPL_WHOISOPERATOR_MSG,
+ Client_ID(from), Client_ID(c)))
+ return DISCONNECTED;
+
+ /* Connected using SSL? */
+ if (Conn_UsesSSL(Client_Conn(c)) &&
+ !IRC_WriteStrClient(from, RPL_WHOISSSL_MSG,
+ Client_ID(from), Client_ID(c)))
+ return DISCONNECTED;
+
+ /* Idle and signon time (local clients only!) */
+ if (Client_Conn(c) > NONE &&
+ !IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
+ Client_ID(from), Client_ID(c),
+ (unsigned long)Conn_GetIdle(Client_Conn(c)),
+ (unsigned long)Conn_GetSignon(Client_Conn(c))))
+ return DISCONNECTED;
- if(( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr );
+ /* Away? */
+ if (Client_HasMode(c, 'a') &&
+ !IRC_WriteStrClient(from, RPL_AWAY_MSG,
+ Client_ID(from), Client_ID(c),
+ Client_Away(c)))
+ return DISCONNECTED;
- /* Nick, User und Name */
- if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
+ return IRC_WriteStrClient(from, RPL_ENDOFWHOIS_MSG,
+ Client_ID(from), Client_ID(c));
+} /* IRC_WHOIS_SendReply */
- /* Server */
- if( ! IRC_WriteStrClient( from, RPL_WHOISSERVER_MSG, Client_ID( from ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED;
-
- /* Channels */
- sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
- cl2chan = Channel_FirstChannelOf( c );
- while( cl2chan )
- {
- chan = Channel_GetChannel( cl2chan );
- assert( chan != NULL );
- /* Channel-Name anhaengen */
- if( str[strlen( str ) - 1] != ':' ) strcat( str, " " );
- if( strchr( Channel_UserModes( chan, c ), 'o' )) strcat( str, "@" );
- else if( strchr( Channel_UserModes( chan, c ), 'v' )) strcat( str, "+" );
- strcat( str, Channel_Name( chan ));
+/**
+ * Handler for the IRC "WHOIS" command.
+ *
+ * See RFC 2812, 3.6.2 "Whois query".
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @return CONNECTED or DISCONNECTED.
+ */
+GLOBAL bool
+IRC_WHOIS( CLIENT *Client, REQUEST *Req )
+{
+ CLIENT *from, *target, *c;
+ unsigned int match_count = 0, found = 0;
+ bool has_wildcards, is_remote;
+ bool got_wildcard = false;
+ const char *query;
- if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
- {
- /* Zeile wird zu lang: senden! */
- if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
- sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
- }
+ assert( Client != NULL );
+ assert( Req != NULL );
- /* naechstes Mitglied suchen */
- cl2chan = Channel_NextChannelOf( c, cl2chan );
+ /* Bad number of parameters? */
+ if (Req->argc < 1 || Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Search sender of the WHOIS */
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ from = Client_Search(Req->prefix);
+ } else {
+ IRC_SetPenalty(Client, 1);
+ from = Client;
}
- if( str[strlen( str ) - 1] != ':')
+ if (!from)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ /* Get target server for this command */
+ if (Req->argc > 1) {
+ /* Search the target server, which can be specified as a
+ * nick name on that server as well: */
+ target = Client_Search(Req->argv[0]);
+ if (!target)
+ return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from), Req->argv[0]);
+ } else
+ target = Client_ThisServer();
+ assert(target != NULL);
+
+ /* Forward to other server? */
+ if (Client_NextHop(target) != Client_ThisServer() &&
+ Client_Type(Client_NextHop(target)) == CLIENT_SERVER)
+ return IRC_WriteStrClientPrefix(target, from,
+ "WHOIS %s :%s",
+ Req->argv[0], Req->argv[1]);
+
+ is_remote = Client_Conn(from) < 0;
+ for (query = strtok(Req->argv[Req->argc - 1], ",");
+ query && found < 3;
+ query = strtok(NULL, ","), found++)
{
- /* Es sind noch Daten da, die gesendet werden muessen */
- if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
- }
+ has_wildcards = query[strcspn(query, "*?")] != 0;
+ /*
+ * follows ircd 2.10 implementation:
+ * - handle up to 3 targets
+ * - no wildcards for remote clients
+ * - only one wildcard target per local client
+ *
+ * also, at most ten matches are returned.
+ */
+ if (!has_wildcards || is_remote) {
+ c = Client_Search(query);
+ if (c) {
+ if (!IRC_WHOIS_SendReply(Client, from, c))
+ return DISCONNECTED;
+ } else {
+ if (!IRC_WriteStrClient(Client,
+ ERR_NOSUCHNICK_MSG,
+ Client_ID(Client),
+ query))
+ return DISCONNECTED;
+ }
+ continue;
+ }
+ if (got_wildcard) {
+ /* we already handled one wildcard query */
+ if (!IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), query))
+ return DISCONNECTED;
+ continue;
+ }
+ got_wildcard = true;
+ IRC_SetPenalty(Client, 3);
+
+ for (c = Client_First(); c && match_count < 10; c = Client_Next(c)) {
+ if (Client_Type(c) != CLIENT_USER)
+ continue;
+ if (!MatchCaseInsensitive(query, Client_ID(c)))
+ continue;
+ if (!IRC_WHOIS_SendReply(Client, from, c))
+ return DISCONNECTED;
+ match_count++;
+ }
- /* IRC-Operator? */
- if( Client_HasMode( c, 'o' ))
- {
- if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
+ if (match_count == 0)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->argv[Req->argc - 1]);
}
+ return CONNECTED;
+} /* IRC_WHOIS */
- /* Idle (nur lokale Clients) */
- if( Client_Conn( c ) > NONE )
- {
- if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
- }
- /* Away? */
- if( Client_HasMode( c, 'a' ))
- {
- if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
- }
+static bool
+WHOWAS_EntryWrite(CLIENT *prefix, WHOWAS *entry)
+{
+ char t_str[60];
- /* End of Whois */
- return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
-} /* IRC_WHOIS */
+ (void)strftime(t_str, sizeof(t_str), "%a %b %d %H:%M:%S %Y",
+ localtime(&entry->time));
+ if (!IRC_WriteStrClient(prefix, RPL_WHOWASUSER_MSG, Client_ID(prefix),
+ entry->id, entry->user, entry->host, entry->info))
+ return DISCONNECTED;
-GLOBAL BOOLEAN
+ return IRC_WriteStrClient(prefix, RPL_WHOISSERVER_MSG, Client_ID(prefix),
+ entry->id, entry->server, t_str);
+}
+
+/**
+ * IRC "WHOWAS" function.
+ * This function implements the IRC command "WHOWHAS". It handles local
+ * requests and request that should be forwarded to other servers.
+ */
+GLOBAL bool
IRC_WHOWAS( CLIENT *Client, REQUEST *Req )
{
+ CLIENT *target, *prefix;
+ WHOWAS *whowas;
+ char tok_buf[COMMAND_LEN];
+ int max, last, count, i, nc;
+ const char *nick;
+
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if(( Req->argc < 1 ) || ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ /* Wrong number of parameters? */
+ if (Req->argc > 3)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+ if (Req->argc < 1)
+ return IRC_WriteStrClient(Client, ERR_NONICKNAMEGIVEN_MSG, Client_ID(Client));
+
+ /* Search target */
+ if (Req->argc == 3)
+ target = Client_Search(Req->argv[2]);
+ else
+ target = Client_ThisServer();
+
+ /* Get prefix */
+ if (Client_Type(Client) == CLIENT_SERVER)
+ prefix = Client_Search(Req->prefix);
+ else
+ prefix = Client;
+
+ if (!prefix)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ /* Forward to other server? */
+ if (target != Client_ThisServer()) {
+ if (!target || (Client_Type(target) != CLIENT_SERVER))
+ return IRC_WriteStrClient(prefix, ERR_NOSUCHSERVER_MSG,
+ Client_ID(prefix), Req->argv[2]);
+
+ /* Forward */
+ IRC_WriteStrClientPrefix( target, prefix, "WHOWAS %s %s %s",
+ Req->argv[0], Req->argv[1],
+ Req->argv[2] );
+ return CONNECTED;
+ }
- /* ... */
+ whowas = Client_GetWhowas( );
+ last = Client_GetLastWhowasIndex( );
+ if (last < 0)
+ last = 0;
- return CONNECTED;
+ max = DEFAULT_WHOWAS;
+ if (Req->argc > 1) {
+ max = atoi(Req->argv[1]);
+ if (max < 1)
+ max = MAX_WHOWAS;
+ }
+
+ /*
+ * Break up the nick argument into a list of nicks, if applicable
+ * Can't modify Req->argv[0] because we need it for RPL_ENDOFWHOWAS_MSG.
+ */
+ strlcpy(tok_buf, Req->argv[0], sizeof(tok_buf));
+ nick = strtok(tok_buf, ",");
+
+ for (i=last, count=0; nick != NULL ; nick = strtok(NULL, ",")) {
+ nc = 0;
+ do {
+ /* Used entry? */
+ if (whowas[i].time > 0 && strcasecmp(nick, whowas[i].id) == 0) {
+ if (!WHOWAS_EntryWrite(prefix, &whowas[i]))
+ return DISCONNECTED;
+ nc++;
+ count++;
+ }
+ /* previous entry */
+ i--;
+
+ /* "underflow", wrap around */
+ if (i < 0)
+ i = MAX_WHOWAS - 1;
+
+ if (nc && count >= max)
+ break;
+ } while (i != last);
+
+ if (nc == 0 && !IRC_WriteStrClient(prefix, ERR_WASNOSUCHNICK_MSG,
+ Client_ID(prefix), nick))
+ return DISCONNECTED;
+ }
+ return IRC_WriteStrClient(prefix, RPL_ENDOFWHOWAS_MSG, Client_ID(prefix), Req->argv[0]);
} /* IRC_WHOWAS */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_Send_LUSERS( CLIENT *Client )
{
- LONG cnt;
+ unsigned long cnt;
+#ifndef STRICT_RFC
+ unsigned long max;
+#endif
assert( Client != NULL );
- /* Users, Services und Serevr im Netz */
+ /* Users, services and serevers in the network */
if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
- /* IRC-Operatoren im Netz */
+ /* Number of IRC operators */
cnt = Client_OperCount( );
if( cnt > 0 )
{
if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
}
- /* Unbekannt Verbindungen */
+ /* Unknown connections */
cnt = Client_UnknownCount( );
if( cnt > 0 )
{
if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
}
- /* Channels im Netz */
+ /* Number of created channels */
if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
- /* Channels im Netz */
+ /* Number of local users, services and servers */
if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
+#ifndef STRICT_RFC
+ /* Maximum number of local users */
+ cnt = Client_MyUserCount();
+ max = Client_MyMaxUserCount();
+ if (! IRC_WriteStrClient(Client, RPL_LOCALUSERS_MSG, Client_ID(Client),
+ cnt, max, cnt, max))
+ return DISCONNECTED;
+ /* Maximum number of users in the network */
+ cnt = Client_UserCount();
+ max = Client_MaxUserCount();
+ if(! IRC_WriteStrClient(Client, RPL_NETUSERS_MSG, Client_ID(Client),
+ cnt, max, cnt, max))
+ return DISCONNECTED;
+ /* Connection counters */
+ if (! IRC_WriteStrClient(Client, RPL_STATSCONN_MSG, Client_ID(Client),
+ Conn_CountMax(), Conn_CountAccepted()))
+ return DISCONNECTED;
+#endif
+
return CONNECTED;
} /* IRC_Send_LUSERS */
-GLOBAL BOOLEAN
+static bool
+Show_MOTD_Start(CLIENT *Client)
+{
+ return IRC_WriteStrClient(Client, RPL_MOTDSTART_MSG,
+ Client_ID( Client ), Client_ID( Client_ThisServer( )));
+}
+
+static bool
+Show_MOTD_Sendline(CLIENT *Client, const char *msg)
+{
+ return IRC_WriteStrClient(Client, RPL_MOTD_MSG, Client_ID( Client ), msg);
+}
+
+static bool
+Show_MOTD_End(CLIENT *Client)
+{
+ return IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ));
+}
+
+#ifdef SSL_SUPPORT
+static bool Show_MOTD_SSLInfo(CLIENT *Client)
+{
+ bool ret = true;
+ char buf[COMMAND_LEN] = "Connected using Cipher ";
+
+ if (!Conn_GetCipherInfo(Client_Conn(Client), buf + 23, sizeof buf - 23))
+ return true;
+
+ if (!Show_MOTD_Sendline(Client, buf))
+ ret = false;
+
+ return ret;
+}
+#else
+static inline bool
+Show_MOTD_SSLInfo(UNUSED CLIENT *c)
+{ return true; }
+#endif
+
+GLOBAL bool
IRC_Show_MOTD( CLIENT *Client )
{
- BOOLEAN ok;
- CHAR line[127];
- FILE *fd;
+ const char *line;
+ size_t len_tot, len_str;
assert( Client != NULL );
- fd = fopen( Conf_MotdFile, "r" );
- if( ! fd )
- {
- Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
- return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
- }
+ len_tot = array_bytes(&Conf_Motd);
+ if (len_tot == 0 && !Conn_UsesSSL(Client_Conn(Client)))
+ return IRC_WriteStrClient(Client, ERR_NOMOTD_MSG, Client_ID(Client));
- IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
- while( TRUE )
- {
- if( ! fgets( line, 126, fd )) break;
- if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
- if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
- {
- fclose( fd );
- return FALSE;
- }
- }
- ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
+ if (!Show_MOTD_Start(Client))
+ return DISCONNECTED;
- fclose( fd );
+ line = array_start(&Conf_Motd);
+ while (len_tot > 0) {
+ len_str = strlen(line) + 1;
- return ok;
+ assert(len_tot >= len_str);
+ len_tot -= len_str;
+
+ if (!Show_MOTD_Sendline(Client, line))
+ return DISCONNECTED;
+ line += len_str;
+ }
+
+ if (!Show_MOTD_SSLInfo(Client))
+ return DISCONNECTED;
+ return Show_MOTD_End(Client);
} /* IRC_Show_MOTD */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
{
- BOOLEAN is_visible, is_member;
- CHAR str[LINE_LEN + 1];
+ bool is_visible, is_member;
+ char str[LINE_LEN + 1];
CL2CHAN *cl2chan;
CLIENT *cl;
assert( Client != NULL );
assert( Chan != NULL );
- if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE;
- else is_member = FALSE;
+ if( Channel_IsMemberOf( Chan, Client )) is_member = true;
+ else is_member = false;
+
+ /* Secret channel? */
+ if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
/* Alle Mitglieder suchen */
- sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
+ snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
cl2chan = Channel_FirstMember( Chan );
while( cl2chan )
{
cl = Channel_GetClient( cl2chan );
- if( strchr( Client_Modes( cl ), 'i' )) is_visible = FALSE;
- else is_visible = TRUE;
+ if( strchr( Client_Modes( cl ), 'i' )) is_visible = false;
+ else is_visible = true;
if( is_member || is_visible )
{
/* Nick anhaengen */
- if( str[strlen( str ) - 1] != ':' ) strcat( str, " " );
- if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strcat( str, "@" );
- else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strcat( str, "+" );
- strcat( str, Client_ID( cl ));
+ if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
+ if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strlcat( str, "@", sizeof( str ));
+ else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strlcat( str, "+", sizeof( str ));
+ strlcat( str, Client_ID( cl ), sizeof( str ));
if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
{
/* Zeile wird zu lang: senden! */
if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
- sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
+ snprintf( str, sizeof( str ), RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
}
}
} /* IRC_Send_NAMES */
-GLOBAL BOOLEAN
-IRC_Send_WHO( CLIENT *Client, CHANNEL *Chan, BOOLEAN OnlyOps )
+/**
+ * Send the ISUPPORT numeric (005).
+ * This numeric indicates the features that are supported by this server.
+ * See <http://www.irc.org/tech_docs/005.html> for details.
+ */
+GLOBAL bool
+IRC_Send_ISUPPORT(CLIENT * Client)
{
- BOOLEAN is_visible, is_member;
- CL2CHAN *cl2chan;
- CHAR flags[8];
- CLIENT *c;
-
- assert( Client != NULL );
- assert( Chan != NULL );
-
- if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE;
- else is_member = FALSE;
-
- /* Alle Mitglieder suchen */
- cl2chan = Channel_FirstMember( Chan );
- while( cl2chan )
- {
- c = Channel_GetClient( cl2chan );
-
- if( strchr( Client_Modes( c ), 'i' )) is_visible = FALSE;
- else is_visible = TRUE;
-
- if( is_member || is_visible )
- {
- /* Flags zusammenbasteln */
- strcpy( flags, "H" );
- if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" );
- if( strchr( Channel_UserModes( Chan, c ), 'o' )) strcat( flags, "@" );
- else if( strchr( Channel_UserModes( Chan, c ), 'v' )) strcat( flags, "+" );
-
- /* ausgeben */
- if(( ! OnlyOps ) || ( strchr( Client_Modes( c ), 'o' )))
- {
- if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), Channel_Name( Chan ), Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
- }
- }
-
- /* naechstes Mitglied suchen */
- cl2chan = Channel_NextMember( Chan, cl2chan );
- }
- return CONNECTED;
-} /* IRC_Send_WHO */
+ if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
+ Conf_MaxJoins))
+ return DISCONNECTED;
+ return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
+ CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
+ COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
+ COMMAND_LEN - 113);
+} /* IRC_Send_ISUPPORT */
/* -eof- */