X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Finspstring.cpp;h=b5949273806b61a537dfb94227f25a8404f077d3;hb=05953e35b03a8136f5906e0add89412f02bfca36;hp=b5bf733704b15d56ffdac4c45ff2ab295f0be3b0;hpb=ab6a7318e36bd8e0a259cd9eef3694a0f0e8684a;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/inspstring.cpp b/src/inspstring.cpp index b5bf73370..b59492738 100644 --- a/src/inspstring.cpp +++ b/src/inspstring.cpp @@ -1,139 +1,126 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ - * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits +/* + * InspIRCd -- Internet Relay Chat Daemon * - * This program is free but copyrighted software; see - * the file COPYING for details. + * Copyright (C) 2010 Daniel De Graaf + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2005-2007 Craig Edwards * - * --------------------------------------------------- - */ - -/* $Core: libIRCDstring */ - -#include "inspstring.h" - -/* - * Copyright (c) 1998 Todd C. Miller - * All rights reserved. + * 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. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. + * 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. * - * THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ - -#ifndef HAS_STRLCPY -CoreExport size_t strlcat(char *dst, const char *src, size_t siz) -{ - char *d = dst; - const char *s = src; - size_t n = siz, dlen; - while (n-- != 0 && *d != '\0') - d++; - dlen = d - dst; - n = siz - dlen; +#include "inspircd.h" - if (n == 0) - return(dlen + strlen(s)); +static const char hextable[] = "0123456789abcdef"; - while (*s != '\0') +std::string BinToHex(const void* raw, size_t l) +{ + const char* data = static_cast(raw); + std::string rv; + rv.reserve(l * 2); + for (size_t i = 0; i < l; i++) { - if (n != 1) - { - *d++ = *s; - n--; - } - - s++; + unsigned char c = data[i]; + rv.push_back(hextable[c >> 4]); + rv.push_back(hextable[c & 0xF]); } - - *d = '\0'; - return(dlen + (s - src)); /* count does not include NUL */ + return rv; } -CoreExport size_t strlcpy(char *dst, const char *src, size_t siz) -{ - char *d = dst; - const char *s = src; - size_t n = siz; +static const char b64table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - /* Copy as many bytes as will fit */ - if (n != 0 && --n != 0) +std::string BinToBase64(const std::string& data_str, const char* table, char pad) +{ + if (!table) + table = b64table; + + uint32_t buffer; + uint8_t* data = (uint8_t*)data_str.data(); + std::string rv; + size_t i = 0; + while (i + 2 < data_str.length()) { - do + buffer = (data[i] << 16 | data[i+1] << 8 | data[i+2]); + rv.push_back(table[0x3F & (buffer >> 18)]); + rv.push_back(table[0x3F & (buffer >> 12)]); + rv.push_back(table[0x3F & (buffer >> 6)]); + rv.push_back(table[0x3F & (buffer >> 0)]); + i += 3; + } + if (data_str.length() == i) + { + // no extra characters + } + else if (data_str.length() == i + 1) + { + buffer = data[i] << 16; + rv.push_back(table[0x3F & (buffer >> 18)]); + rv.push_back(table[0x3F & (buffer >> 12)]); + if (pad) { - if ((*d++ = *s++) == 0) - break; - } while (--n != 0); + rv.push_back(pad); + rv.push_back(pad); + } } - - /* Not enough room in dst, add NUL and traverse rest of src */ - if (n == 0) + else if (data_str.length() == i + 2) { - if (siz != 0) - *d = '\0'; /* NUL-terminate dst */ - while (*s++); + buffer = (data[i] << 16 | data[i+1] << 8); + rv.push_back(table[0x3F & (buffer >> 18)]); + rv.push_back(table[0x3F & (buffer >> 12)]); + rv.push_back(table[0x3F & (buffer >> 6)]); + if (pad) + rv.push_back(pad); } - - return(s - src - 1); /* count does not include NUL */ + return rv; } -#endif -CoreExport int charlcat(char* x,char y,int z) +std::string Base64ToBin(const std::string& data_str, const char* table) { - char* x__n = x; - int v = 0; - - while(*x__n++) - v++; - - if (v < z - 1) + if (!table) + table = b64table; + + int bitcount = 0; + uint32_t buffer = 0; + const char* data = data_str.c_str(); + std::string rv; + while (true) { - *--x__n = y; - *++x__n = 0; + const char* find = strchr(table, *data++); + if (!find || find >= table + 64) + break; + buffer = (buffer << 6) | (find - table); + bitcount += 6; + if (bitcount >= 8) + { + bitcount -= 8; + rv.push_back((buffer >> bitcount) & 0xFF); + } } - - return v; + return rv; } -CoreExport bool charremove(char* mp, char remove) +bool InspIRCd::TimingSafeCompare(const std::string& one, const std::string& two) { - char* mptr = mp; - bool shift_down = false; + if (one.length() != two.length()) + return false; - while (*mptr) + unsigned int diff = 0; + for (std::string::const_iterator i = one.begin(), j = two.begin(); i != one.end(); ++i, ++j) { - if (*mptr == remove) - shift_down = true; - - if (shift_down) - *mptr = *(mptr+1); - - mptr++; + unsigned char a = static_cast(*i); + unsigned char b = static_cast(*j); + diff |= a ^ b; } - return shift_down; + return (diff == 0); } -