diff options
Diffstat (limited to 'third_party/libjingle/files/talk/base/base64.cc')
| -rw-r--r-- | third_party/libjingle/files/talk/base/base64.cc | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/third_party/libjingle/files/talk/base/base64.cc b/third_party/libjingle/files/talk/base/base64.cc deleted file mode 100644 index 53e5bac..0000000 --- a/third_party/libjingle/files/talk/base/base64.cc +++ /dev/null @@ -1,196 +0,0 @@ - -//********************************************************************* -//* Base64 - a simple base64 encoder and decoder. -//* -//* Copyright (c) 1999, Bob Withers - bwit@pobox.com -//* -//* This code may be freely used for any purpose, either personal -//* or commercial, provided the authors copyright notice remains -//* intact. -//* -//* Enhancements by Stanley Yamane: -//* o reverse lookup table for the decode function -//* o reserve string buffer space in advance -//* -//********************************************************************* - -#include "talk/base/base64.h" - -using std::string; - -namespace talk_base { - -static const char fillchar = '='; -static const string::size_type np = string::npos; - -const string Base64::Base64Table( - // 0000000000111111111122222222223333333333444444444455555555556666 - // 0123456789012345678901234567890123456789012345678901234567890123 - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"); - -// Decode Table gives the index of any valid base64 character in the -// Base64 table -// 65 == A, 97 == a, 48 == 0, 43 == +, 47 == / - -const string::size_type Base64::DecodeTable[] = { -// 0 1 2 3 4 5 6 7 8 9 - np,np,np,np,np,np,np,np,np,np, // 0 - 9 - np,np,np,np,np,np,np,np,np,np, //10 -19 - np,np,np,np,np,np,np,np,np,np, //20 -29 - np,np,np,np,np,np,np,np,np,np, //30 -39 - np,np,np,62,np,np,np,63,52,53, //40 -49 - 54,55,56,57,58,59,60,61,np,np, //50 -59 - np,np,np,np,np, 0, 1, 2, 3, 4, //60 -69 - 5, 6, 7, 8, 9,10,11,12,13,14, //70 -79 - 15,16,17,18,19,20,21,22,23,24, //80 -89 - 25,np,np,np,np,np,np,26,27,28, //90 -99 - 29,30,31,32,33,34,35,36,37,38, //100 -109 - 39,40,41,42,43,44,45,46,47,48, //110 -119 - 49,50,51,np,np,np,np,np,np,np, //120 -129 - np,np,np,np,np,np,np,np,np,np, //130 -139 - np,np,np,np,np,np,np,np,np,np, //140 -149 - np,np,np,np,np,np,np,np,np,np, //150 -159 - np,np,np,np,np,np,np,np,np,np, //160 -169 - np,np,np,np,np,np,np,np,np,np, //170 -179 - np,np,np,np,np,np,np,np,np,np, //180 -189 - np,np,np,np,np,np,np,np,np,np, //190 -199 - np,np,np,np,np,np,np,np,np,np, //200 -209 - np,np,np,np,np,np,np,np,np,np, //210 -219 - np,np,np,np,np,np,np,np,np,np, //220 -229 - np,np,np,np,np,np,np,np,np,np, //230 -239 - np,np,np,np,np,np,np,np,np,np, //240 -249 - np,np,np,np,np,np //250 -256 -}; - -string Base64::encodeFromArray(const char * data, size_t len) { - size_t i; - char c; - string ret; - - ret.reserve(len * 2); - - for (i = 0; i < len; ++i) { - c = (data[i] >> 2) & 0x3f; - ret.append(1, Base64Table[c]); - c = (data[i] << 4) & 0x3f; - if (++i < len) { - c |= (data[i] >> 4) & 0x0f; - } - - ret.append(1, Base64Table[c]); - if (i < len) { - c = (data[i] << 2) & 0x3f; - if (++i < len) { - c |= (data[i] >> 6) & 0x03; - } - ret.append(1, Base64Table[c]); - } else { - ++i; - ret.append(1, fillchar); - } - - if (i < len) { - c = data[i] & 0x3f; - ret.append(1, Base64Table[c]); - } else { - ret.append(1, fillchar); - } - } - - return(ret); -} - -string Base64::encode(const string& data) { - string::size_type i; - char c; - string::size_type len = data.length(); - string ret; - - ret.reserve(len * 2); - - for (i = 0; i < len; ++i) { - c = (data[i] >> 2) & 0x3f; - ret.append(1, Base64Table[c]); - c = (data[i] << 4) & 0x3f; - if (++i < len) { - c |= (data[i] >> 4) & 0x0f; - } - - ret.append(1, Base64Table[c]); - if (i < len) { - c = (data[i] << 2) & 0x3f; - if (++i < len) { - c |= (data[i] >> 6) & 0x03; - } - - ret.append(1, Base64Table[c]); - } else { - ++i; - ret.append(1, fillchar); - } - - if (i < len) { - c = data[i] & 0x3f; - ret.append(1, Base64Table[c]); - } else { - ret.append(1, fillchar); - } - } - - return(ret); -} - -string Base64::decode(const string& data) { - string::size_type i; - char c; - char c1; - string::size_type len = data.length(); - string ret; - - ret.reserve(len); - - for (i = 0; i < len; ++i) { - do { - c = static_cast<char>(DecodeTable[static_cast<unsigned char>(data[i])]); - } while (c == np && ++i < len); - - ++i; - - do { - c1 = static_cast<char>(DecodeTable[static_cast<unsigned char>(data[i])]); - } while (c == np && ++i < len); - - c = (c << 2) | ((c1 >> 4) & 0x3); - ret.append(1, c); - if (++i < len) { - c = data[i]; - if (fillchar == c) { - break; - } - - do { - c = static_cast<char>(DecodeTable[static_cast<unsigned char>(data[i])]); - } while (c == np && ++i < len); - c1 = ((c1 << 4) & 0xf0) | ((c >> 2) & 0xf); - ret.append(1, c1); - } - - if (++i < len) { - c1 = data[i]; - if (fillchar == c1) { - break; - } - - do { - c1 = static_cast<char>(DecodeTable[static_cast<unsigned char>(data[i])]); - } while (c == np && ++i < len); - - c = ((c << 6) & 0xc0) | c1; - ret.append(1, c); - } - } - - return(ret); -} - -} // namespace talk_base |