X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Finspstring.cpp;h=b5949273806b61a537dfb94227f25a8404f077d3;hb=63aa8d0d42f619c52d382bde3e6ba2e5e23b12ac;hp=b5278a6adad5146cceb7d09e3b54042ef46cc373;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/inspstring.cpp b/src/inspstring.cpp index b5278a6ad..b59492738 100644 --- a/src/inspstring.cpp +++ b/src/inspstring.cpp @@ -1 +1,126 @@ -/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "inspstring.h" /* * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * 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 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. */ #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; if (n == 0) return(dlen + strlen(s)); while (*s != '\0') { if (n != 1) { *d++ = *s; n--; } s++; } *d = '\0'; return(dlen + (s - src)); /* count does not include NUL */ } CoreExport size_t strlcpy(char *dst, const char *src, size_t siz) { char *d = dst; const char *s = src; size_t n = siz; /* Copy as many bytes as will fit */ if (n != 0 && --n != 0) { do { if ((*d++ = *s++) == 0) break; } while (--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if (n == 0) { if (siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++); } return(s - src - 1); /* count does not include NUL */ } #endif CoreExport int charlcat(char* x,char y,int z) { char* x__n = x; int v = 0; while(*x__n++) v++; if (v < z - 1) { *--x__n = y; *++x__n = 0; } return v; } CoreExport bool charremove(char* mp, char remove) { char* mptr = mp; bool shift_down = false; while (*mptr) { if (*mptr == remove) shift_down = true; if (shift_down) *mptr = *(mptr+1); mptr++; } return shift_down; } \ No newline at end of file +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2010 Daniel De Graaf + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2005-2007 Craig Edwards + * + * 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 . + */ + + +#include "inspircd.h" + +static const char hextable[] = "0123456789abcdef"; + +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++) + { + unsigned char c = data[i]; + rv.push_back(hextable[c >> 4]); + rv.push_back(hextable[c & 0xF]); + } + return rv; +} + +static const char b64table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +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()) + { + 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) + { + rv.push_back(pad); + rv.push_back(pad); + } + } + else if (data_str.length() == i + 2) + { + 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 rv; +} + +std::string Base64ToBin(const std::string& data_str, const char* table) +{ + if (!table) + table = b64table; + + int bitcount = 0; + uint32_t buffer = 0; + const char* data = data_str.c_str(); + std::string rv; + while (true) + { + 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 rv; +} + +bool InspIRCd::TimingSafeCompare(const std::string& one, const std::string& two) +{ + if (one.length() != two.length()) + return false; + + unsigned int diff = 0; + for (std::string::const_iterator i = one.begin(), j = two.begin(); i != one.end(); ++i, ++j) + { + unsigned char a = static_cast(*i); + unsigned char b = static_cast(*j); + diff |= a ^ b; + } + + return (diff == 0); +}