X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fhelperfuncs.cpp;h=edb5005d25e049e009365e9f12a91c4b45a578a5;hb=663f0620bea4dc1e64ec640992f4d511ae1ef97b;hp=ffa30fb840799e8f4cdc025f1cbfd8a1170a3290;hpb=cd712c40e1b352c05e7ae0f72e0a5e84cdf64323;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/helperfuncs.cpp b/src/helperfuncs.cpp
index ffa30fb84..edb5005d2 100644
--- a/src/helperfuncs.cpp
+++ b/src/helperfuncs.cpp
@@ -1,16 +1,27 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ *   Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
  *
- * This program is free but copyrighted software; see
- *	    the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd 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, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 /* $Core */
 
 #include "inspircd.h"
@@ -173,6 +184,9 @@ bool InspIRCd::IsValidMask(const std::string &mask)
 	if (exclamation != 1 || atsign != 1)
 		return false;
 
+	if (mask.length() > 250)
+		return false;
+
 	return true;
 }
 
@@ -396,13 +410,71 @@ std::string InspIRCd::TimeString(time_t curtime)
 void InspIRCd::AddExtBanChar(char c)
 {
 	std::string &tok = Config->data005;
-	std::string::size_type ebpos;
+	std::string::size_type ebpos = tok.find(" EXTBAN=,");
 
-	if ((ebpos = tok.find(" EXTBAN=,")) == std::string::npos)
+	if (ebpos == std::string::npos)
 	{
 		tok.append(" EXTBAN=,");
 		tok.push_back(c);
 	}
 	else
-		tok.insert(ebpos + 9, 1, c);
+	{
+		ebpos += 9;
+		while (isalpha(tok[ebpos]) && tok[ebpos] < c)
+			ebpos++;
+		tok.insert(ebpos, 1, c);
+	}
+}
+
+std::string InspIRCd::GenRandomStr(int length, bool printable)
+{
+	char* buf = new char[length];
+	GenRandom(buf, length);
+	std::string rv;
+	rv.resize(length);
+	for(int i=0; i < length; i++)
+		rv[i] = printable ? 0x3F + (buf[i] & 0x3F) : buf[i];
+	delete[] buf;
+	return rv;
+}
+
+// NOTE: this has a slight bias for lower values if max is not a power of 2.
+// Don't use it if that matters.
+unsigned long InspIRCd::GenRandomInt(unsigned long max)
+{
+	unsigned long rv;
+	GenRandom((char*)&rv, sizeof(rv));
+	return rv % max;
+}
+
+// This is overridden by a higher-quality algorithm when SSL support is loaded
+void GenRandomHandler::Call(char *output, size_t max)
+{
+	for(unsigned int i=0; i < max; i++)
+		output[i] = random();
+}
+
+ModResult OnCheckExemptionHandler::Call(User* user, Channel* chan, const std::string& restriction)
+{
+	unsigned int mypfx = chan->GetPrefixValue(user);
+	char minmode = 0;
+	std::string current;
+
+	irc::spacesepstream defaultstream(ServerInstance->Config->ConfValue("options")->getString("exemptchanops"));
+
+	while (defaultstream.GetToken(current))
+	{
+		std::string::size_type pos = current.find(':');
+		if (pos == std::string::npos)
+			continue;
+		if (current.substr(0,pos) == restriction)
+			minmode = current[pos+1];
+	}
+
+	ModeHandler* mh = ServerInstance->Modes->FindMode(minmode, MODETYPE_CHANNEL);
+	if (mh && mypfx >= mh->GetPrefixRank())
+		return MOD_RES_ALLOW;
+	if (mh || minmode == '*')
+		return MOD_RES_DENY;
+	return MOD_RES_PASSTHRU;
 }