X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc.c;h=eae046d3eab11703c00fd695307abce7ede115d2;hp=ad8c0506905eca3fdaf5787914be740b7a4b9e21;hb=798de94d6556bdf2c6019f368ad7441fe6e2d1be;hpb=52ccba5d1e8cd2e648cf3c14598332bde6b9910d

diff --git a/src/ngircd/irc.c b/src/ngircd/irc.c
index ad8c0506..eae046d3 100644
--- a/src/ngircd/irc.c
+++ b/src/ngircd/irc.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2015 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2018 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
@@ -85,6 +85,8 @@ IRC_CheckListTooBig(CLIENT *From, const int Count, const int Limit,
 GLOBAL bool
 IRC_ERROR(CLIENT *Client, REQUEST *Req)
 {
+	char *msg;
+
 	assert( Client != NULL );
 	assert( Req != NULL );
 
@@ -99,12 +101,20 @@ IRC_ERROR(CLIENT *Client, REQUEST *Req)
 		return CONNECTED;
 	}
 
-	if (Req->argc < 1)
+	if (Req->argc < 1) {
+		msg = "Got ERROR command";
 		Log(LOG_NOTICE, "Got ERROR from \"%s\"!",
 		    Client_Mask(Client));
-	else
+	} else {
+		msg = Req->argv[0];
 		Log(LOG_NOTICE, "Got ERROR from \"%s\": \"%s\"!",
-		    Client_Mask(Client), Req->argv[0]);
+		    Client_Mask(Client), msg);
+	}
+
+	if (Client_Conn(Client) != NONE) {
+		Conn_Close(Client_Conn(Client), NULL, msg, false);
+		return DISCONNECTED;
+	}
 
 	return CONNECTED;
 } /* IRC_ERROR */
@@ -352,12 +362,8 @@ IRC_KillClient(CLIENT *Client, CLIENT *From, const char *Nick, const char *Reaso
 		return CONNECTED;
 	}
 
-	/* Inform other servers */
-	IRC_WriteStrServersPrefix(From ? Client : NULL,
-				  From ? From : Client_ThisServer(),
-				  "KILL %s :%s", Nick, Reason);
-
-	if (Client_Type(c) != CLIENT_USER && Client_Type(c) != CLIENT_GOTNICK) {
+	if (Client_Type(c) != CLIENT_USER && Client_Type(c) != CLIENT_GOTNICK
+	    && Client_Type(c) != CLIENT_SERVICE) {
 		/* 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
@@ -378,6 +384,12 @@ IRC_KillClient(CLIENT *Client, CLIENT *From, const char *Nick, const char *Reaso
 		    Client_Type(c), Nick);
 	}
 
+	/* Inform other servers */
+	IRC_WriteStrServersPrefix(From ? Client : NULL,
+				  From ? From : Client_ThisServer(),
+				  "KILL %s :%s", Nick, Reason);
+
+
 	/* Save ID of this connection */
 	if (Client)
 		my_conn = Client_Conn(Client);
@@ -471,11 +483,8 @@ Help(CLIENT *Client, const char *Topic)
  * @return Pointer to static (global) string buffer.
  */
 static char *
-#ifdef ZLIB
+#if defined(SSL_SUPPORT) || defined(ZLIB)
 Option_String(CONN_ID Idx)
-#else
-Option_String(UNUSED CONN_ID Idx)
-#endif
 {
 	static char option_txt[8];
 	UINT16 options;
@@ -493,11 +502,27 @@ Option_String(UNUSED CONN_ID Idx)
 	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;
+#else
+Option_String(UNUSED CONN_ID Idx)
+{
+	return "";
+#endif
 } /* Option_String */
 
+/**
+ * Send a message to target(s).
+ *
+ * This function is used by IRC_{PRIVMSG|NOTICE|SQUERY} to actualy
+ * send the message(s).
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @param ForceType Required type of the destination of the message(s).
+ * @param SendErrors Whether to report errors back to the client or not.
+ * @return CONNECTED or DISCONNECTED.
+ */
 static bool
 Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 {
@@ -505,8 +530,10 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 	CL2CHAN *cl2chan;
 	CHANNEL *chan;
 	char *currentTarget = Req->argv[0];
-	char *lastCurrentTarget = NULL;
+	char *strtok_last = NULL;
 	char *message = NULL;
+	char *targets[MAX_HNDL_TARGETS];
+	int i, target_nr = 0;
 
 	assert(Client != NULL);
 	assert(Req != NULL);
@@ -546,10 +573,19 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 		message = Req->argv[1];
 
 	/* handle msgtarget = msgto *("," msgto) */
-	currentTarget = strtok_r(currentTarget, ",", &lastCurrentTarget);
+	currentTarget = strtok_r(currentTarget, ",", &strtok_last);
 	ngt_UpperStr(Req->command);
 
+	/* Please note that "currentTarget" is NULL when the target contains
+	 * the separator character only, e. g. "," or ",,,," etc.! */
 	while (currentTarget) {
+		/* Make sure that there hasn't been such a target already: */
+		targets[target_nr++] = currentTarget;
+		for(i = 0; i < target_nr - 1; i++) {
+			if (strcasecmp(currentTarget, targets[i]) == 0)
+				goto send_next_target;
+		}
+
 		/* Check for and handle valid <msgto> of form:
 		 * RFC 2812 2.3.1:
 		 *   msgto =  channel / ( user [ "%" host ] "@" servername )
@@ -658,7 +694,10 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 				goto send_next_target;
 			}
 
-			if (Client_HasMode(cl, 'C')) {
+			if (Client_HasMode(cl, 'C') &&
+			    !Client_HasMode(from, 'o') &&
+			    !(Client_Type(from) == CLIENT_SERVER) &&
+			    !(Client_Type(from) == CLIENT_SERVICE)) {
 				cl2chan = Channel_FirstChannelOf(cl);
 				while (cl2chan) {
 					chan = Channel_GetChannel(cl2chan);
@@ -693,14 +732,14 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 				return DISCONNECTED;
 		} else if (ForceType != CLIENT_SERVICE
 			   && (chan = Channel_Search(currentTarget))) {
+			/* Target is a channel */
 			if (!Channel_Write(chan, from, Client, Req->command,
 					   SendErrors, message))
 					return DISCONNECTED;
 		} else if (ForceType != CLIENT_SERVICE
-			/* $#: server/target mask, RFC 2812, sec. 3.3.1 */
 			   && strchr("$#", currentTarget[0])
 			   && strchr(currentTarget, '.')) {
-			/* targetmask */
+			/* $#: server/host mask, RFC 2812, sec. 3.3.1 */
 			if (!Send_Message_Mask(from, Req->command, currentTarget,
 					       message, SendErrors))
 				return DISCONNECTED;
@@ -713,14 +752,35 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
 		}
 
 	send_next_target:
-		currentTarget = strtok_r(NULL, ",", &lastCurrentTarget);
-		if (currentTarget)
-			Conn_SetPenalty(Client_Conn(Client), 1);
+		currentTarget = strtok_r(NULL, ",", &strtok_last);
+		if (!currentTarget)
+			break;
+
+		Conn_SetPenalty(Client_Conn(Client), 1);
+
+		if (target_nr >= MAX_HNDL_TARGETS) {
+			/* Too many targets given! */
+			return IRC_WriteErrClient(Client,
+						  ERR_TOOMANYTARGETS_MSG,
+						  currentTarget);
+		}
 	}
 
 	return CONNECTED;
 } /* Send_Message */
 
+/**
+ * Send a message to "target mask" target(s).
+ *
+ * See RFC 2812, sec. 3.3.1 for details.
+ *
+ * @param from The client from which this command has been received.
+ * @param command The command to use (PRIVMSG, NOTICE, ...).
+ * @param targetMask The "target mask" (will be verified by this function).
+ * @param message The message to send.
+ * @param SendErrors Whether to report errors back to the client or not.
+ * @return CONNECTED or DISCONNECTED.
+ */
 static bool
 Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
 		  char * message, bool SendErrors)
@@ -744,17 +804,15 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
 	 * dot (".") and no wildcards ("*", "?") following the last one.
 	 */
 	check_wildcards = strrchr(targetMask, '.');
-	assert(check_wildcards != NULL);
-	if (check_wildcards &&
-		check_wildcards[strcspn(check_wildcards, "*?")])
-	{
+	if (!check_wildcards || check_wildcards[strcspn(check_wildcards, "*?")]) {
 		if (!SendErrors)
 			return true;
-		return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL, targetMask);
+		return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL_MSG,
+					  targetMask);
 	}
 
-	/* #: hostmask, see RFC 2812, sec. 3.3.1 */
 	if (targetMask[0] == '#') {
+		/* #: hostmask, see RFC 2812, sec. 3.3.1 */
 		for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
 			if (Client_Type(cl) != CLIENT_USER)
 				continue;
@@ -765,7 +823,8 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
 					return false;
 		}
 	} else {
-		assert(targetMask[0] == '$'); /* $: server mask, see RFC 2812, sec. 3.3.1 */
+		/* $: server mask, see RFC 2812, sec. 3.3.1 */
+		assert(targetMask[0] == '$');
 		for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
 			if (Client_Type(cl) != CLIENT_USER)
 				continue;