#include <vector>#include <string>#include "base64.h"char getbase64character(const char& in){  switch(in) {  case B64_A:    return 'A';  case B64_B:    return 'B';  case B64_C:    return 'C';  case B64_D:    return 'D';  case B64_E:    return 'E';  case B64_F:    return 'F';  case B64_G:    return 'G';  case B64_H:    return 'H';  case B64_I:    return 'I';  case B64_J:    return 'J';  case B64_K:    return 'K';  case B64_L:    return 'L';  case B64_M:    return 'M';  case B64_N:    return 'N';  case B64_O:    return 'O';  case B64_P:    return 'P';  case B64_Q:    return 'Q';  case B64_R:    return 'R';  case B64_S:    return 'S';  case B64_T:    return 'T';  case B64_U:    return 'U';  case B64_V:    return 'V';  case B64_W:    return 'W';  case B64_X:    return 'X';  case B64_Y:    return 'Y';  case B64_Z:    return 'Z';  case B64_a:    return 'a';  case B64_b:    return 'b';  case B64_c:    return 'c';  case B64_d:    return 'd';  case B64_e:    return 'e';  case B64_f:    return 'f';  case B64_g:    return 'g';  case B64_h:    return 'h';  case B64_i:    return 'i';  case B64_j:    return 'j';  case B64_k:    return 'k';  case B64_l:    return 'l';  case B64_m:    return 'm';  case B64_n:    return 'n';  case B64_o:    return 'o';  case B64_p:    return 'p';  case B64_q:    return 'q';  case B64_r:    return 'r';  case B64_s:    return 's';  case B64_t:    return 't';  case B64_u:    return 'u';  case B64_v:    return 'v';  case B64_w:    return 'w';  case B64_x:    return 'x';  case B64_y:    return 'y';  case B64_z:    return 'z';  case B64_0:    return '0';  case B64_1:    return '1';  case B64_2:    return '2';  case B64_3:    return '3';  case B64_4:    return '4';  case B64_5:    return '5';  case B64_6:    return '6';  case B64_7:    return '7';  case B64_8:    return '8';  case B64_9:    return '9';  case plus:    return '+';  case slash:    return '/';  case padding:    return '=';  }  return '\0'; // ?????? yikes}std::vector<char> base64encode(const std::vector<char>& input, 			       const bool returns) {  std::vector<char> output;    // add a newline (SMTP demands less than 1000 characters in a message line).  long count = 0;  for(std::vector<char>::size_type p = 0; p < input.size(); p+=3) {    output.push_back(getbase64character((input[p] & 0xFC) >> 2));    ++count;        if(p+1 < input.size()) {      output.push_back(getbase64character(((input[p] & 0x03) <<4) | 					  ((input[p+1] & 0xF0) >> 4)));      ++count;    }    if(p+2 < input.size()) {      output.push_back(getbase64character(((input[p+1] & 0x0F) <<2) | 					  ((input[p+2] & 0xC0) >>6)));      output.push_back(getbase64character((input[p+2] & 0x3F)));      ++count;    }        if(p+1 == input.size()) {      output.push_back(getbase64character(((input[p] & 0x03) <<4)));    } else if(p+2 == input.size()) {      output.push_back(getbase64character(((input[p+1] & 0x0F) <<2)));    }        if(returns) {      // 79 characters on a line.      if(count > 75) {	output.push_back('\r');	output.push_back('\n');	count = 0;      }    }  }  int pad(input.size() % 3);  if(pad) {    if(pad == 1) {      pad = 2;    } else {      pad = 1;    }  }  for(int i = 0; i < pad; ++i) {    output.push_back('=');  }  return output;}std::string base64encode(const std::string& input, const bool returns) {  std::vector<char> in, out;  for(std::string::const_iterator it = input.begin(); it != input.end(); ++it){    in.push_back(*it);  }  out = base64encode(in, returns);  std::string ret;  for(std::vector<char>::const_iterator it1 = out.begin(); it1 != out.end();       ++it1) {    ret += *it1;  }  return ret;}