X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc.c;h=34180aa7d48eb04130da17ffdd712909859204bf;hp=e76abcb8a4af00250d819d00d332ca4a5cdc0f65;hb=eccbd97e1f2599bfb76818fe6bc32967ed07e0c7;hpb=68cb1a8c2e507e7c99f787fab3540b904cfa1cc1 diff --git a/src/ngircd/irc.c b/src/ngircd/irc.c index e76abcb8..34180aa7 100644 --- a/src/ngircd/irc.c +++ b/src/ngircd/irc.c @@ -1,6 +1,6 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors. + * Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors. * * 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 @@ -27,17 +27,18 @@ #include "channel.h" #include "conn-encoding.h" #include "defines.h" +#include "irc-macros.h" #include "irc-write.h" #include "log.h" #include "match.h" #include "messages.h" #include "parse.h" +#include "op.h" #include "tool.h" #include "exp.h" #include "irc.h" - static char *Option_String PARAMS((CONN_ID Idx)); static bool Send_Message PARAMS((CLIENT *Client, REQUEST *Req, int ForceType, bool SendErrors)); @@ -46,7 +47,6 @@ static bool Send_Message_Mask PARAMS((CLIENT *from, char *command, bool SendErrors)); static bool Help PARAMS((CLIENT *Client, const char *Topic)); - /** * Check if a list limit is reached and inform client accordingly. * @@ -75,9 +75,15 @@ IRC_CheckListTooBig(CLIENT *From, const int Count, const int Limit, return true; } - +/** + * Handler for the IRC "ERROR" command. + * + * @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_ERROR( CLIENT *Client, REQUEST *Req ) +IRC_ERROR(CLIENT *Client, REQUEST *Req) { assert( Client != NULL ); assert( Req != NULL ); @@ -103,11 +109,10 @@ IRC_ERROR( CLIENT *Client, REQUEST *Req ) return CONNECTED; } /* IRC_ERROR */ - /** * Handler for the IRC "KILL" command. * - * This function implements the IRC command "KILL" wich is used to selectively + * This function implements the IRC command "KILL" which is used to selectively * disconnect clients. It can be used by IRC operators and servers, for example * to "solve" nick collisions after netsplits. See RFC 2812 section 3.7.1. * @@ -115,13 +120,13 @@ IRC_ERROR( CLIENT *Client, REQUEST *Req ) * KILL command being received over the network! Client is Client_ThisServer() * in this case, and the prefix in Req is NULL. * - * @param Client The client from which this command has been received - * or Client_ThisServer() when generated interanlly. - * @param Req Request structure with prefix and all parameters. - * @returns CONNECTED or DISCONNECTED. + * @param Client The client from which this command has been received or + * Client_ThisServer() when generated interanlly. + * @param Req Request structure with prefix and all parameters. + * @return CONNECTED or DISCONNECTED. */ GLOBAL bool -IRC_KILL( CLIENT *Client, REQUEST *Req ) +IRC_KILL(CLIENT *Client, REQUEST *Req) { CLIENT *prefix, *c; char reason[COMMAND_LEN], *msg; @@ -130,13 +135,8 @@ IRC_KILL( CLIENT *Client, REQUEST *Req ) assert (Client != NULL); assert (Req != NULL); - if (Client_Type(Client) != CLIENT_SERVER && !Client_OperByMe(Client)) - return IRC_WriteStrClient(Client, ERR_NOPRIVILEGES_MSG, - Client_ID(Client)); - - if (Req->argc != 2) - return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, - Client_ID(Client), Req->command); + if (Client_Type(Client) != CLIENT_SERVER && !Op_Check(Client, Req)) + return Op_NoPrivileges(Client, Req); /* Get prefix (origin); use the client if no prefix is given. */ if (Req->prefix) @@ -145,7 +145,8 @@ IRC_KILL( CLIENT *Client, REQUEST *Req ) prefix = Client; /* Log a warning message and use this server as origin when the - * prefix (origin) is invalid. */ + * prefix (origin) is invalid. And this is the reason why we don't + * use the _IRC_GET_SENDER_OR_RETURN_ macro above! */ if (!prefix) { Log(LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix ); @@ -154,7 +155,7 @@ IRC_KILL( CLIENT *Client, REQUEST *Req ) if (Client != Client_ThisServer()) Log(LOG_NOTICE|LOG_snotice, - "Got KILL command from \"%s\" for \"%s\": %s", + "Got KILL command from \"%s\" for \"%s\": \"%s\".", Client_Mask(prefix), Req->argv[0], Req->argv[1]); /* Build reason string: Prefix the "reason" if the originator is a @@ -174,30 +175,28 @@ IRC_KILL( CLIENT *Client, REQUEST *Req ) /* Do we host such a client? */ c = Client_Search( Req->argv[0] ); - if( c ) - { - if(( Client_Type( c ) != CLIENT_USER ) && - ( Client_Type( c ) != CLIENT_GOTNICK )) - { + if (c) { + if (Client_Type(c) != CLIENT_USER + && Client_Type(c) != CLIENT_GOTNICK) { /* Target of this KILL is not a regular user, this is * invalid! So we ignore this case if we received a * regular KILL from the network and try to kill the * client/connection anyway (but log an error!) if the * origin is the local server. */ - if( Client != Client_ThisServer( )) - { + if (Client != Client_ThisServer()) { /* Invalid KILL received from remote */ - if( Client_Type( c ) == CLIENT_SERVER ) + if (Client_Type(c) == CLIENT_SERVER) msg = ERR_CANTKILLSERVER_MSG; else msg = ERR_NOPRIVILEGES_MSG; - return IRC_WriteStrClient( Client, msg, - Client_ID( Client )); + return IRC_WriteErrClient(Client, msg, + Client_ID(Client)); } - Log( LOG_ERR, "Got KILL for invalid client type: %d, \"%s\"!", - Client_Type( c ), Req->argv[0] ); + Log(LOG_ERR, + "Got KILL for invalid client type: %d, \"%s\"!", + Client_Type( c ), Req->argv[0] ); } /* Kill the client NOW: @@ -211,28 +210,35 @@ IRC_KILL( CLIENT *Client, REQUEST *Req ) Client_Destroy(c, NULL, reason, false); } else - Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] ); + Log(LOG_NOTICE, "Client with nick \"%s\" is unknown here.", + Req->argv[0]); /* Are we still connected or were we killed, too? */ - if(( my_conn > NONE ) && ( Conn_GetClient( my_conn ))) + if (my_conn > NONE && Conn_GetClient(my_conn)) return CONNECTED; else return DISCONNECTED; } /* IRC_KILL */ - /** - * Handler for the IRC command NOTICE. - */ + * Handler for the IRC "NOTICE" command. + * + * @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_NOTICE(CLIENT *Client, REQUEST *Req) { return Send_Message(Client, Req, CLIENT_USER, false); } /* IRC_NOTICE */ - /** - * Handler for the IRC command PRIVMSG. + * Handler for the IRC "PRIVMSG" command. + * + * @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_PRIVMSG(CLIENT *Client, REQUEST *Req) @@ -240,9 +246,12 @@ IRC_PRIVMSG(CLIENT *Client, REQUEST *Req) return Send_Message(Client, Req, CLIENT_USER, true); } /* IRC_PRIVMSG */ - /** - * Handler for the IRC command SQUERY. + * Handler for the IRC "SQUERY" command. + * + * @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_SQUERY(CLIENT *Client, REQUEST *Req) @@ -250,72 +259,85 @@ IRC_SQUERY(CLIENT *Client, REQUEST *Req) return Send_Message(Client, Req, CLIENT_SERVICE, true); } /* IRC_SQUERY */ - -GLOBAL bool -IRC_TRACE( CLIENT *Client, REQUEST *Req ) +/* + * Handler for the IRC "TRACE" command. + * + * @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_TRACE(CLIENT *Client, REQUEST *Req) { CLIENT *from, *target, *c; CONN_ID idx, idx2; char user[CLIENT_USER_LEN]; - assert( Client != NULL ); - assert( Req != NULL ); + assert(Client != NULL); + assert(Req != NULL); - /* Bad number of arguments? */ - if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command ); + IRC_SetPenalty(Client, 3); - /* Search sender */ - 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 ); + _IRC_GET_SENDER_OR_RETURN_(from, Req, Client) + _IRC_GET_TARGET_SERVER_OR_RETURN_(target, Req, 0, from) - /* Search target */ - if( Req->argc == 1 ) target = Client_Search( Req->argv[0] ); - else target = Client_ThisServer( ); - /* Forward command to other server? */ - if( target != Client_ThisServer( )) - { - if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] ); - + if (target != Client_ThisServer()) { /* Send RPL_TRACELINK back to initiator */ - idx = Client_Conn( Client ); assert( idx > NONE ); - idx2 = Client_Conn( Client_NextHop( target )); assert( idx2 > NONE ); - if( ! IRC_WriteStrClient( from, RPL_TRACELINK_MSG, Client_ID( from ), PACKAGE_NAME, PACKAGE_VERSION, Client_ID( target ), Client_ID( Client_NextHop( target )), Option_String( idx2 ), time( NULL ) - Conn_StartTime( idx2 ), Conn_SendQ( idx ), Conn_SendQ( idx2 ))) return DISCONNECTED; + idx = Client_Conn(Client); + assert(idx > NONE); + idx2 = Client_Conn(Client_NextHop(target)); + assert(idx2 > NONE); + + if (!IRC_WriteStrClient(from, RPL_TRACELINK_MSG, + Client_ID(from), PACKAGE_NAME, + PACKAGE_VERSION, Client_ID(target), + Client_ID(Client_NextHop(target)), + Option_String(idx2), + time(NULL) - Conn_StartTime(idx2), + Conn_SendQ(idx), Conn_SendQ(idx2))) + return DISCONNECTED; /* Forward command */ - IRC_WriteStrClientPrefix( target, from, "TRACE %s", Req->argv[0] ); + IRC_WriteStrClientPrefix(target, from, "TRACE %s", Req->argv[0]); return CONNECTED; } /* Infos about all connected servers */ - c = Client_First( ); - while( c ) - { - if( Client_Conn( c ) > NONE ) - { + c = Client_First(); + while (c) { + if (Client_Conn(c) > NONE) { /* Local client */ - if( Client_Type( c ) == CLIENT_SERVER ) - { + if (Client_Type(c) == CLIENT_SERVER) { /* Server link */ - strlcpy( user, Client_User( c ), sizeof( user )); - if( user[0] == '~' ) strlcpy( user, "unknown", sizeof( user )); - if( ! IRC_WriteStrClient( from, RPL_TRACESERVER_MSG, Client_ID( from ), Client_ID( c ), user, Client_Hostname( c ), Client_Mask( Client_ThisServer( )), Option_String( Client_Conn( c )))) return DISCONNECTED; + strlcpy(user, Client_User(c), sizeof(user)); + if (user[0] == '~') + strlcpy(user, "unknown", sizeof(user)); + if (!IRC_WriteStrClient(from, + RPL_TRACESERVER_MSG, + Client_ID(from), Client_ID(c), + user, Client_Hostname(c), + Client_Mask(Client_ThisServer()), + Option_String(Client_Conn(c)))) + return DISCONNECTED; } - if(( Client_Type( c ) == CLIENT_USER ) && ( strchr( Client_Modes( c ), 'o' ))) - { + if (Client_Type(c) == CLIENT_USER + && Client_HasMode(c, 'o')) { /* IRC Operator */ - if( ! IRC_WriteStrClient( from, RPL_TRACEOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED; + if (!IRC_WriteStrClient(from, + RPL_TRACEOPERATOR_MSG, + Client_ID(from), Client_ID(c))) + return DISCONNECTED; } } c = Client_Next( c ); } - IRC_SetPenalty( Client, 3 ); - return IRC_WriteStrClient( from, RPL_TRACEEND_MSG, Client_ID( from ), Conf_ServerName, PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel ); + return IRC_WriteStrClient(from, RPL_TRACEEND_MSG, Client_ID(from), + Conf_ServerName, PACKAGE_NAME, + PACKAGE_VERSION, NGIRCd_DebugLevel); } /* IRC_TRACE */ - /** * Handler for the IRC "HELP" command. * @@ -331,11 +353,6 @@ IRC_HELP(CLIENT *Client, REQUEST *Req) assert(Client != NULL); assert(Req != NULL); - /* Bad number of arguments? */ - if (Req->argc > 1) - return IRC_WriteStrClient(Client, ERR_NORECIPIENT_MSG, - Client_ID(Client), Req->command); - IRC_SetPenalty(Client, 2); if ((Req->argc == 0 && array_bytes(&Conf_Helptext) > 0) @@ -359,7 +376,6 @@ IRC_HELP(CLIENT *Client, REQUEST *Req) return CONNECTED; } /* IRC_HELP */ - /** * Send help for a given topic to the client. * @@ -425,7 +441,12 @@ Help(CLIENT *Client, const char *Topic) return CONNECTED; } - +/** + * Get pointer to a static string representing the connection "options". + * + * @param Idx Connection index. + * @return Pointer to static (global) string buffer. + */ static char * #ifdef ZLIB Option_String(CONN_ID Idx) @@ -436,21 +457,26 @@ Option_String(UNUSED CONN_ID Idx) static char option_txt[8]; #ifdef ZLIB UINT16 options; - - options = Conn_Options(Idx); #endif + assert(Idx != NONE); + + options = Conn_Options(Idx); strcpy(option_txt, "F"); /* No idea what this means, but the * original ircd sends it ... */ +#ifdef SSL_SUPPORT + if(options & CONN_SSL) /* SSL encrypted link */ + strlcat(option_txt, "s", sizeof(option_txt)); +#endif #ifdef ZLIB - if(options & CONN_ZIP) /* zlib compression supported. */ - strcat(option_txt, "z"); + if(options & CONN_ZIP) /* zlib compression enabled */ + strlcat(option_txt, "z", sizeof(option_txt)); #endif + LogDebug(" *** %d: %d = %s", Idx, options, option_txt); return option_txt; } /* Option_String */ - static bool Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) { @@ -467,19 +493,20 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) if (Req->argc == 0) { if (!SendErrors) return CONNECTED; - return IRC_WriteStrClient(Client, ERR_NORECIPIENT_MSG, + return IRC_WriteErrClient(Client, ERR_NORECIPIENT_MSG, Client_ID(Client), Req->command); } if (Req->argc == 1) { if (!SendErrors) return CONNECTED; - return IRC_WriteStrClient(Client, ERR_NOTEXTTOSEND_MSG, + return IRC_WriteErrClient(Client, ERR_NOTEXTTOSEND_MSG, Client_ID(Client)); } if (Req->argc > 2) { if (!SendErrors) return CONNECTED; - return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, + IRC_SetPenalty(Client, 2); + return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command); } @@ -488,7 +515,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) else from = Client; if (!from) - return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, + return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix); #ifdef ICONV @@ -583,7 +610,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) #else if (Client_Type(cl) != ForceType) { #endif - if (SendErrors && !IRC_WriteStrClient( + if (SendErrors && !IRC_WriteErrClient( from, ERR_NOSUCHNICK_MSG,Client_ID(from), currentTarget)) return DISCONNECTED; @@ -604,7 +631,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) !Client_HasMode(from, 'o') && !(Client_Type(from) == CLIENT_SERVER) && !(Client_Type(from) == CLIENT_SERVICE)) { - if (SendErrors && !IRC_WriteStrClient(from, + if (SendErrors && !IRC_WriteErrClient(from, ERR_NONONREG_MSG, Client_ID(from), Client_ID(cl))) return DISCONNECTED; @@ -620,7 +647,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) cl2chan = Channel_NextChannelOf(cl, cl2chan); } if (!cl2chan) { - if (SendErrors && !IRC_WriteStrClient( + if (SendErrors && !IRC_WriteErrClient( from, ERR_NOTONSAMECHANNEL_MSG, Client_ID(from), Client_ID(cl))) return DISCONNECTED; @@ -629,7 +656,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) } if (SendErrors && (Client_Type(Client) != CLIENT_SERVER) - && strchr(Client_Modes(cl), 'a')) { + && Client_HasMode(cl, 'a')) { /* Target is away */ if (!IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from), @@ -660,7 +687,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) } else { if (!SendErrors) return CONNECTED; - if (!IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG, + if (!IRC_WriteErrClient(from, ERR_NOSUCHNICK_MSG, Client_ID(from), currentTarget)) return DISCONNECTED; } @@ -674,7 +701,6 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors) return CONNECTED; } /* Send_Message */ - static bool Send_Message_Mask(CLIENT * from, char * command, char * targetMask, char * message, bool SendErrors) @@ -686,10 +712,10 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask, cl = NULL; - if (strchr(Client_Modes(from), 'o') == NULL) { + if (!Client_HasMode(from, 'o')) { if (!SendErrors) return true; - return IRC_WriteStrClient(from, ERR_NOPRIVILEGES_MSG, + return IRC_WriteErrClient(from, ERR_NOPRIVILEGES_MSG, Client_ID(from)); } @@ -704,7 +730,7 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask, { if (!SendErrors) return true; - return IRC_WriteStrClient(from, ERR_WILDTOPLEVEL, targetMask); + return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL, targetMask); } /* #: hostmask, see RFC 2812, sec. 3.3.1 */ @@ -734,5 +760,4 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask, return CONNECTED; } /* Send_Message_Mask */ - /* -eof- */