-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "hashcomp.h"\r#ifndef WIN32\r#include <ext/hash_map>\r#define nspace __gnu_cxx\r#else\r#include <hash_map>\r#define nspace stdext\rusing stdext::hash_map;\r#endif\r\r/******************************************************\r *\r * The hash functions of InspIRCd are the centrepoint\r * of the entire system. If these functions are\r * inefficient or wasteful, the whole program suffers\r * as a result. A lot of C programmers in the ircd\r * scene spend a lot of time debating (arguing) about\r * the best way to write hash functions to hash irc\r * nicknames, channels etc.\r * We are lucky as C++ developers as hash_map does\r * a lot of this for us. It does intellegent memory\r * requests, bucketing, search functions, insertion\r * and deletion etc. All we have to do is write some\r * overloaded comparison and hash value operators which\r * cause it to act in an irc-like way. The features we\r * add to the standard hash_map are:\r *\r * Case insensitivity: The hash_map will be case\r * insensitive.\r *\r * Scandanavian Comparisons: The characters [, ], \ will\r * be considered the lowercase of {, } and |.\r *\r ******************************************************/\r\rusing namespace irc::sockets;\r\r/* convert a string to lowercase. Note following special circumstances\r * taken from RFC 1459. Many "official" server branches still hold to this\r * rule so i will too;\r *\r * Because of IRC's scandanavian origin, the characters {}| are\r * considered to be the lower case equivalents of the characters []\,\r * respectively. This is a critical issue when determining the\r * equivalence of two nicknames.\r */\rvoid nspace::strlower(char *n)\r{\r if (n)\r {\r for (char* t = n; *t; t++)\r *t = lowermap[(unsigned char)*t];\r }\r}\r\r#ifndef WIN32\rsize_t nspace::hash<string>::operator()(const string &s) const\r#else\rsize_t nspace::hash_compare<string, std::less<string> >::operator()(const string &s) const\r#endif\r{\r /* XXX: NO DATA COPIES! :)\r * The hash function here is practically\r * a copy of the one in STL's hash_fun.h,\r * only with *x replaced with lowermap[*x].\r * This avoids a copy to use hash<const char*>\r */\r register size_t t = 0;\r for (std::string::const_iterator x = s.begin(); x != s.end(); ++x) /* ++x not x++, as its faster */\r t = 5 * t + lowermap[(unsigned char)*x];\r return t;\r}\r\r#ifndef WIN32\rsize_t nspace::hash<irc::string>::operator()(const irc::string &s) const\r#else\rsize_t nspace::hash_compare<irc::string, std::less<irc::string> >::operator()(const irc::string &s) const\r#endif\r{\r register size_t t = 0;\r for (irc::string::const_iterator x = s.begin(); x != s.end(); ++x) /* ++x not x++, as its faster */\r t = 5 * t + lowermap[(unsigned char)*x];\r return t;\r}\r\rbool irc::StrHashComp::operator()(const std::string& s1, const std::string& s2) const\r{\r unsigned char* n1 = (unsigned char*)s1.c_str();\r unsigned char* n2 = (unsigned char*)s2.c_str();\r for (; *n1 && *n2; n1++, n2++)\r if (lowermap[*n1] != lowermap[*n2])\r return false;\r return (lowermap[*n1] == lowermap[*n2]);\r}\r\r/******************************************************\r *\r * This is the implementation of our special irc::string\r * class which is a case-insensitive equivalent to\r * std::string which is not only case-insensitive but\r * can also do scandanavian comparisons, e.g. { = [, etc.\r *\r * This class depends on the const array 'lowermap'.\r *\r ******************************************************/\r\rbool irc::irc_char_traits::eq(char c1st, char c2nd)\r{\r return lowermap[(unsigned char)c1st] == lowermap[(unsigned char)c2nd];\r}\r\rbool irc::irc_char_traits::ne(char c1st, char c2nd)\r{\r return lowermap[(unsigned char)c1st] != lowermap[(unsigned char)c2nd];\r}\r\rbool irc::irc_char_traits::lt(char c1st, char c2nd)\r{\r return lowermap[(unsigned char)c1st] < lowermap[(unsigned char)c2nd];\r}\r\rint irc::irc_char_traits::compare(const char* str1, const char* str2, size_t n)\r{\r for(unsigned int i = 0; i < n; i++)\r {\r if(lowermap[(unsigned char)*str1] > lowermap[(unsigned char)*str2])\r return 1;\r\r if(lowermap[(unsigned char)*str1] < lowermap[(unsigned char)*str2])\r return -1;\r\r if(*str1 == 0 || *str2 == 0)\r return 0;\r\r str1++;\r str2++;\r }\r return 0;\r}\r\rconst char* irc::irc_char_traits::find(const char* s1, int n, char c)\r{\r while(n-- > 0 && lowermap[(unsigned char)*s1] != lowermap[(unsigned char)c])\r s1++;\r return s1;\r}\r\rirc::tokenstream::tokenstream(const std::string &source) : tokens(source), last_pushed(false)\r{\r /* Record starting position and current position */\r last_starting_position = tokens.begin();\r n = tokens.begin();\r}\r\rirc::tokenstream::~tokenstream()\r{\r}\r\rbool irc::tokenstream::GetToken(std::string &token)\r{\r std::string::iterator lsp = last_starting_position;\r\r while (n != tokens.end())\r {\r /** Skip multi space, converting " " into " "\r */\r while ((n+1 != tokens.end()) && (*n == ' ') && (*(n+1) == ' '))\r n++;\r\r if ((last_pushed) && (*n == ':'))\r {\r /* If we find a token thats not the first and starts with :,\r * this is the last token on the line\r */\r std::string::iterator curr = ++n;\r n = tokens.end();\r token = std::string(curr, tokens.end());\r return true;\r }\r\r last_pushed = false;\r\r if ((*n == ' ') || (n+1 == tokens.end()))\r {\r /* If we find a space, or end of string, this is the end of a token.\r */\r last_starting_position = n+1;\r last_pushed = true;\r\r std::string strip(lsp, n+1 == tokens.end() ? n+1 : n++);\r while ((strip.length()) && (strip.find_last_of(' ') == strip.length() - 1))\r strip.erase(strip.end() - 1);\r\r token = strip;\r return !token.empty();\r }\r\r n++;\r }\r token.clear();\r return false;\r}\r\rbool irc::tokenstream::GetToken(irc::string &token)\r{\r std::string stdstring;\r bool returnval = GetToken(stdstring);\r token = assign(stdstring);\r return returnval;\r}\r\rbool irc::tokenstream::GetToken(int &token)\r{\r std::string tok;\r bool returnval = GetToken(tok);\r token = ConvToInt(tok);\r return returnval;\r}\r\rbool irc::tokenstream::GetToken(long &token)\r{\r std::string tok;\r bool returnval = GetToken(tok);\r token = ConvToInt(tok);\r return returnval;\r}\r\rirc::sepstream::sepstream(const std::string &source, char seperator) : tokens(source), sep(seperator)\r{\r last_starting_position = tokens.begin();\r n = tokens.begin();\r}\r\rconst std::string irc::sepstream::GetToken()\r{\r std::string::iterator lsp = last_starting_position;\r\r while (n != tokens.end())\r {\r if ((*n == sep) || (n+1 == tokens.end()))\r {\r last_starting_position = n+1;\r std::string strip = std::string(lsp, n+1 == tokens.end() ? n+1 : n++);\r\r while ((strip.length()) && (strip.find_last_of(sep) == strip.length() - 1))\r strip.erase(strip.end() - 1);\r\r return strip;\r }\r\r n++;\r }\r\r return "";\r}\r\rconst std::string irc::sepstream::GetRemaining()\r{\r return std::string(n, tokens.end());\r}\r\rbool irc::sepstream::StreamEnd()\r{\r return ((n + 1) == tokens.end());\r}\r\rirc::sepstream::~sepstream()\r{\r}\r\rstd::string irc::hex(const unsigned char *raw, size_t rawsz)\r{\r if (!rawsz)\r return "";\r\r /* EWW! This used to be using sprintf, which is WAY inefficient. -Special */\r \r const char *hex = "0123456789abcdef";\r static char hexbuf[MAXBUF];\r\r size_t i, j;\r for (i = 0, j = 0; j < rawsz; ++j)\r {\r hexbuf[i++] = hex[raw[j] / 16];\r hexbuf[i++] = hex[raw[j] % 16];\r }\r hexbuf[i] = 0;\r\r return hexbuf;\r}\r\rCoreExport const char* irc::Spacify(const char* n)\r{\r static char x[MAXBUF];\r strlcpy(x,n,MAXBUF);\r for (char* y = x; *y; y++)\r if (*y == '_')\r *y = ' ';\r return x;\r}\r\r\rirc::modestacker::modestacker(bool add) : adding(add)\r{\r sequence.clear();\r sequence.push_back("");\r}\r\rvoid irc::modestacker::Push(char modeletter, const std::string ¶meter)\r{\r *(sequence.begin()) += modeletter;\r sequence.push_back(parameter);\r}\r\rvoid irc::modestacker::Push(char modeletter)\r{\r this->Push(modeletter,"");\r}\r\rvoid irc::modestacker::PushPlus()\r{\r this->Push('+',"");\r}\r\rvoid irc::modestacker::PushMinus()\r{\r this->Push('-',"");\r}\r\rint irc::modestacker::GetStackedLine(std::deque<std::string> &result, int max_line_size)\r{\r if (sequence.empty())\r {\r result.clear();\r return 0;\r }\r\r int n = 0;\r int size = 1; /* Account for initial +/- char */\r int nextsize = 0;\r result.clear();\r result.push_back(adding ? "+" : "-");\r\r if (sequence.size() > 1)\r nextsize = sequence[1].length() + 2;\r\r while (!sequence[0].empty() && (sequence.size() > 1) && (result.size() < MAXMODES) && ((size + nextsize) < max_line_size))\r {\r result[0] += *(sequence[0].begin());\r if (!sequence[1].empty())\r {\r result.push_back(sequence[1]);\r size += nextsize; /* Account for mode character and whitespace */\r }\r sequence[0].erase(sequence[0].begin());\r sequence.erase(sequence.begin() + 1);\r\r if (sequence.size() > 1)\r nextsize = sequence[1].length() + 2;\r\r n++;\r }\r\r return n;\r}\r\rirc::stringjoiner::stringjoiner(const std::string &seperator, const std::vector<std::string> &sequence, int begin, int end)\r{\r for (int v = begin; v < end; v++)\r joined.append(sequence[v]).append(seperator);\r joined.append(sequence[end]);\r}\r\rirc::stringjoiner::stringjoiner(const std::string &seperator, const std::deque<std::string> &sequence, int begin, int end)\r{\r for (int v = begin; v < end; v++)\r joined.append(sequence[v]).append(seperator);\r joined.append(sequence[end]);\r}\r\rirc::stringjoiner::stringjoiner(const std::string &seperator, const char** sequence, int begin, int end)\r{\r for (int v = begin; v < end; v++)\r joined.append(sequence[v]).append(seperator);\r joined.append(sequence[end]);\r}\r\rstd::string& irc::stringjoiner::GetJoined()\r{\r return joined;\r}\r\rirc::portparser::portparser(const std::string &source, bool allow_overlapped) : in_range(0), range_begin(0), range_end(0), overlapped(allow_overlapped)\r{\r sep = new irc::commasepstream(source);\r overlap_set.clear();\r}\r\rirc::portparser::~portparser()\r{\r delete sep;\r}\r\rbool irc::portparser::Overlaps(long val)\r{\r if (!overlapped)\r return false;\r\r if (overlap_set.find(val) == overlap_set.end())\r {\r overlap_set[val] = true;\r return false;\r }\r else\r return true;\r}\r\rlong irc::portparser::GetToken()\r{\r if (in_range > 0)\r {\r in_range++;\r if (in_range <= range_end)\r {\r if (!Overlaps(in_range))\r {\r return in_range;\r }\r else\r {\r while (((Overlaps(in_range)) && (in_range <= range_end)))\r in_range++;\r \r if (in_range <= range_end)\r return in_range;\r }\r }\r else\r in_range = 0;\r }\r\r std::string x = sep->GetToken();\r\r if (x.empty())\r return 0;\r\r while (Overlaps(atoi(x.c_str())))\r {\r x = sep->GetToken();\r\r if (x.empty())\r return 0;\r }\r\r std::string::size_type dash = x.rfind('-');\r if (dash != std::string::npos)\r {\r std::string sbegin = x.substr(0, dash);\r std::string send = x.substr(dash+1, x.length());\r range_begin = atoi(sbegin.c_str());\r range_end = atoi(send.c_str());\r\r if ((range_begin > 0) && (range_end > 0) && (range_begin < 65536) && (range_end < 65536) && (range_begin < range_end))\r {\r in_range = range_begin;\r return in_range;\r }\r else\r {\r /* Assume its just the one port */\r return atoi(sbegin.c_str());\r }\r }\r else\r {\r return atoi(x.c_str());\r }\r}\r\rirc::dynamicbitmask::dynamicbitmask() : bits_size(4)\r{\r /* We start with 4 bytes allocated which is room\r * for 4 items. Something makes me doubt its worth\r * allocating less than 4 bytes.\r */\r bits = new unsigned char[bits_size];\r memset(bits, 0, bits_size);\r}\r\rirc::dynamicbitmask::~dynamicbitmask()\r{\r /* Tidy up the entire used memory on delete */\r delete[] bits;\r}\r\rirc::bitfield irc::dynamicbitmask::Allocate()\r{\r /* Yeah, this isnt too efficient, however a module or the core\r * should only be allocating bitfields on load, the Toggle and\r * Get methods are O(1) as these are called much more often.\r */\r unsigned char* freebits = this->GetFreeBits();\r for (unsigned char i = 0; i < bits_size; i++)\r {\r /* Yes, this is right. You'll notice we terminate the loop when !current_pos,\r * this is because we logic shift our bit off the end of unsigned char, and its\r * lost, making the loop counter 0 when we're done.\r */\r for (unsigned char current_pos = 1; current_pos; current_pos = current_pos << 1)\r {\r if (!(freebits[i] & current_pos))\r {\r freebits[i] |= current_pos;\r return std::make_pair(i, current_pos);\r }\r }\r }\r /* We dont have any free space left, increase by one */\r\r if (bits_size == 255)\r /* Oh dear, cant grow it any further */\r throw std::bad_alloc();\r\r unsigned char old_bits_size = bits_size;\r bits_size++;\r /* Allocate new bitfield space */\r unsigned char* temp_bits = new unsigned char[bits_size];\r unsigned char* temp_freebits = new unsigned char[bits_size];\r /* Copy the old data in */\r memcpy(temp_bits, bits, old_bits_size);\r memcpy(temp_freebits, freebits, old_bits_size);\r /* Delete the old data pointers */\r delete[] bits;\r delete[] freebits;\r /* Swap the pointers over so now the new \r * pointers point to our member values\r */\r bits = temp_bits;\r freebits = temp_freebits;\r this->SetFreeBits(freebits);\r /* Initialize the new byte on the end of\r * the bitfields, pre-allocate the one bit\r * for this allocation\r */\r bits[old_bits_size] = 0;\r freebits[old_bits_size] = 1;\r /* We already know where we just allocated\r * the bitfield, so no loop needed\r */\r return std::make_pair(old_bits_size, 1);\r}\r\rbool irc::dynamicbitmask::Deallocate(irc::bitfield &pos)\r{\r /* We dont bother to shrink the bitfield\r * on deallocation, the most we could do\r * is save one byte (!) and this would cost\r * us a loop (ugly O(n) stuff) so we just\r * clear the bit and leave the memory\r * claimed -- nobody will care about one\r * byte.\r */\r if (pos.first < bits_size)\r {\r this->GetFreeBits()[pos.first] &= ~pos.second;\r return true;\r }\r /* They gave a bitfield outside of the\r * length of our array. BAD programmer.\r */\r return false;\r}\r\rvoid irc::dynamicbitmask::Toggle(irc::bitfield &pos, bool state)\r{\r /* Range check the value */\r if (pos.first < bits_size)\r {\r if (state)\r /* Set state, OR the state in */\r bits[pos.first] |= pos.second;\r else\r /* Clear state, AND the !state out */\r bits[pos.first] &= ~pos.second;\r }\r}\r\rbool irc::dynamicbitmask::Get(irc::bitfield &pos)\r{\r /* Range check the value */\r if (pos.first < bits_size)\r return (bits[pos.first] & pos.second);\r else\r /* We can't return false, otherwise we can't\r * distinguish between failure and a cleared bit!\r * Our only sensible choice is to throw (ew).\r */\r throw ModuleException("irc::dynamicbitmask::Get(): Invalid bitfield, out of range");\r}\r\runsigned char irc::dynamicbitmask::GetSize()\r{\r return bits_size;\r}\r\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013, 2018-2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Adam <Adam@anope.org>
+ * Copyright (C) 2012-2013, 2015-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2007, 2010 Craig Edwards <brain@inspircd.org>
+ *
+ * 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/>.
+ */
+
+
+#include "inspircd.h"
+
+/******************************************************
+ *
+ * The hash functions of InspIRCd are the centrepoint
+ * of the entire system. If these functions are
+ * inefficient or wasteful, the whole program suffers
+ * as a result. A lot of C programmers in the ircd
+ * scene spend a lot of time debating (arguing) about
+ * the best way to write hash functions to hash irc
+ * nicknames, channels etc.
+ * We are lucky as C++ developers as unordered_map does
+ * a lot of this for us. It does intellegent memory
+ * requests, bucketing, search functions, insertion
+ * and deletion etc. All we have to do is write some
+ * overloaded comparison and hash value operators which
+ * cause it to act in an irc-like way. The features we
+ * add to the standard hash_map are:
+ *
+ * Case insensitivity: The hash_map will be case
+ * insensitive.
+ *
+ * Scandanavian Comparisons: The characters [, ], \ will
+ * be considered the lowercase of {, } and |.
+ *
+ ******************************************************/
+
+
+/**
+ * A case insensitive mapping of characters from upper case to lower case for
+ * the ASCII character set.
+ */
+unsigned const char ascii_case_insensitive_map[256] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, // 0-9
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, // 10-19
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, // 20-29
+ 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, // 30-39
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, // 40-49
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, // 50-59
+ 60, 61, 62, 63, 64, 97, 98, 99, 100, 101, // 60-69
+ 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, // 70-79
+ 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, // 80-89
+ 122, 91, 92, 93, 94, 95, 96, 97, 98, 99, // 90-99
+ 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, // 100-109
+ 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, // 110-119
+ 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, // 120-129
+ 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, // 130-139
+ 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, // 140-149
+ 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, // 150-159
+ 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, // 160-169
+ 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, // 170-179
+ 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, // 180-189
+ 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, // 190-199
+ 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, // 200-209
+ 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, // 210-219
+ 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, // 220-229
+ 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, // 230-249
+ 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, // 240-249
+ 250, 251, 252, 253, 254, 255, // 250-255
+};
+
+
+
+/**
+ * A case insensitive mapping of characters from upper case to lower case for
+ * the character set of RFC 1459. This is identical to ASCII with the small
+ * exception of {}| being considered to be the lower case equivalents of the
+ * characters []\ respectively.
+ */
+unsigned const char rfc_case_insensitive_map[256] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, // 0-9
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, // 10-19
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, // 20-29
+ 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, // 30-39
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, // 40-49
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, // 50-59
+ 60, 61, 62, 63, 64, 97, 98, 99, 100, 101, // 60-69
+ 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, // 70-79
+ 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, // 80-89
+ 122, 123, 124, 125, 94, 95, 96, 97, 98, 99, // 90-99
+ 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, // 100-109
+ 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, // 110-119
+ 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, // 120-129
+ 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, // 130-139
+ 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, // 140-149
+ 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, // 150-159
+ 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, // 160-169
+ 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, // 170-179
+ 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, // 180-189
+ 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, // 190-199
+ 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, // 200-209
+ 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, // 210-219
+ 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, // 220-229
+ 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, // 230-239
+ 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, // 240-249
+ 250, 251, 252, 253, 254, 255, // 250-255
+};
+
+bool irc::equals(const std::string& s1, const std::string& s2)
+{
+ const unsigned char* n1 = (const unsigned char*)s1.c_str();
+ const unsigned char* n2 = (const unsigned char*)s2.c_str();
+ for (; *n1 && *n2; n1++, n2++)
+ if (national_case_insensitive_map[*n1] != national_case_insensitive_map[*n2])
+ return false;
+ return (national_case_insensitive_map[*n1] == national_case_insensitive_map[*n2]);
+}
+
+size_t irc::find(const std::string& haystack, const std::string& needle)
+{
+ // The haystack can't contain the needle if it is smaller than it.
+ if (needle.length() > haystack.length())
+ return std::string::npos;
+
+ // The inner loop checks the characters between haystack_last and the end of the haystack.
+ size_t haystack_last = haystack.length() - needle.length();
+ for (size_t hpos = 0; hpos <= haystack_last; ++hpos)
+ {
+ // Check for the needle at the current haystack position.
+ bool found = true;
+ for (size_t npos = 0; npos < needle.length(); ++npos)
+ {
+ if (national_case_insensitive_map[(unsigned char)needle[npos]] != national_case_insensitive_map[(unsigned char)haystack[hpos + npos]])
+ {
+ // Uh-oh, characters at the current haystack position don't match.
+ found = false;
+ break;
+ }
+ }
+
+ // The entire needle was found in the haystack!
+ if (found)
+ return hpos;
+ }
+
+ // We didn't find anything.
+ return std::string::npos;
+}
+
+
+bool irc::insensitive_swo::operator()(const std::string& a, const std::string& b) const
+{
+ const unsigned char* charmap = national_case_insensitive_map;
+ std::string::size_type asize = a.size();
+ std::string::size_type bsize = b.size();
+ std::string::size_type maxsize = std::min(asize, bsize);
+
+ for (std::string::size_type i = 0; i < maxsize; i++)
+ {
+ unsigned char A = charmap[(unsigned char)a[i]];
+ unsigned char B = charmap[(unsigned char)b[i]];
+ if (A > B)
+ return false;
+ else if (A < B)
+ return true;
+ }
+ return (asize < bsize);
+}
+
+size_t irc::insensitive::operator()(const std::string &s) const
+{
+ /* XXX: NO DATA COPIES! :)
+ * The hash function here is practically
+ * a copy of the one in STL's hash_fun.h,
+ * only with *x replaced with national_case_insensitive_map[*x].
+ * This avoids a copy to use hash<const char*>
+ */
+ size_t t = 0;
+ for (std::string::const_iterator x = s.begin(); x != s.end(); ++x) /* ++x not x++, as its faster */
+ t = 5 * t + national_case_insensitive_map[(unsigned char)*x];
+ return t;
+}
+
+irc::tokenstream::tokenstream(const std::string& msg, size_t start, size_t end)
+ : message(msg, start, end)
+ , position(0)
+{
+}
+
+bool irc::tokenstream::GetMiddle(std::string& token)
+{
+ // If we are past the end of the string we can't do anything.
+ if (position >= message.length())
+ {
+ token.clear();
+ return false;
+ }
+
+ // If we can't find another separator this is the last token in the message.
+ size_t separator = message.find(' ', position);
+ if (separator == std::string::npos)
+ {
+ token.assign(message, position, std::string::npos);
+ position = message.length();
+ return true;
+ }
+
+ token.assign(message, position, separator - position);
+ position = message.find_first_not_of(' ', separator);
+ return true;
+}
+
+bool irc::tokenstream::GetTrailing(std::string& token)
+{
+ // If we are past the end of the string we can't do anything.
+ if (position >= message.length())
+ {
+ token.clear();
+ return false;
+ }
+
+ // If this is true then we have a <trailing> token!
+ if (message[position] == ':')
+ {
+ token.assign(message, position + 1, std::string::npos);
+ position = message.length();
+ return true;
+ }
+
+ // There is no <trailing> token so it must be a <middle> token.
+ return GetMiddle(token);
+}
+
+irc::sepstream::sepstream(const std::string& source, char separator, bool allowempty)
+ : tokens(source), sep(separator), pos(0), allow_empty(allowempty)
+{
+}
+
+bool irc::sepstream::GetToken(std::string &token)
+{
+ if (this->StreamEnd())
+ {
+ token.clear();
+ return false;
+ }
+
+ if (!this->allow_empty)
+ {
+ this->pos = this->tokens.find_first_not_of(this->sep, this->pos);
+ if (this->pos == std::string::npos)
+ {
+ this->pos = this->tokens.length() + 1;
+ token.clear();
+ return false;
+ }
+ }
+
+ size_t p = this->tokens.find(this->sep, this->pos);
+ if (p == std::string::npos)
+ p = this->tokens.length();
+
+ token.assign(tokens, this->pos, p - this->pos);
+ this->pos = p + 1;
+
+ return true;
+}
+
+const std::string irc::sepstream::GetRemaining()
+{
+ return !this->StreamEnd() ? this->tokens.substr(this->pos) : "";
+}
+
+bool irc::sepstream::StreamEnd()
+{
+ return this->pos > this->tokens.length();
+}
+
+bool irc::sepstream::Contains(const std::string& value)
+{
+ std::string token;
+ while (GetToken(token))
+ if (value == token)
+ return true;
+
+ return false;
+}
+
+irc::portparser::portparser(const std::string &source, bool allow_overlapped)
+ : sep(source), in_range(0), range_begin(0), range_end(0), overlapped(allow_overlapped)
+{
+}
+
+bool irc::portparser::Overlaps(long val)
+{
+ if (overlapped)
+ return false;
+
+ return (!overlap_set.insert(val).second);
+}
+
+long irc::portparser::GetToken()
+{
+ if (in_range > 0)
+ {
+ in_range++;
+ if (in_range <= range_end)
+ {
+ if (!Overlaps(in_range))
+ {
+ return in_range;
+ }
+ else
+ {
+ while (((Overlaps(in_range)) && (in_range <= range_end)))
+ in_range++;
+
+ if (in_range <= range_end)
+ return in_range;
+ }
+ }
+ else
+ in_range = 0;
+ }
+
+ std::string x;
+ sep.GetToken(x);
+
+ if (x.empty())
+ return 0;
+
+ while (Overlaps(ConvToNum<long>(x)))
+ {
+ if (!sep.GetToken(x))
+ return 0;
+ }
+
+ std::string::size_type dash = x.rfind('-');
+ if (dash != std::string::npos)
+ {
+ std::string sbegin(x, 0, dash);
+ range_begin = ConvToNum<long>(sbegin);
+ range_end = ConvToNum<long>(x.c_str() + dash + 1);
+
+ if ((range_begin > 0) && (range_end > 0) && (range_begin < 65536) && (range_end < 65536) && (range_begin < range_end))
+ {
+ in_range = range_begin;
+ return in_range;
+ }
+ else
+ {
+ /* Assume its just the one port */
+ return ConvToNum<long>(sbegin);
+ }
+ }
+ else
+ {
+ return ConvToNum<long>(x);
+ }
+}
projects / user / henk / code / inspircd.git / blobdiff