[whizmail]

Hey guys... I have a PHP class that i'd need to use in a C++ software. Anyone could help me out?

<?php

// Class Made By Mukul Sabharwal [mukulsabharwal@yahoo.com]
// http://www.devhome.net/php/
// On October 21, 2000
// Updated February 24, 2001
// Now passes RC4 Vector Harness
class rc4crypt {
function endecrypt ($pwd, $data, $case='en') {
if ($case == 'de') {
$data = urldecode($data);
}
$key[] = "";
$box[] = "";
$temp_swap = "";
$pwd_length = 0;
$pwd_length = strlen($pwd);
for ($i = 0; $i <= 255; $i++) {
$key[$i] = ord(substr($pwd, ($i % $pwd_length), 1));
$box[$i] = $i;
}
$x = 0;
for ($i = 0; $i <= 255; $i++) {
$x = ($x + $box[$i] + $key[$i]) % 256;
$temp_swap = $box[$i];
$box[$i] = $box[$x];
$box[$x] = $temp_swap;
}
$temp = "";
$k = "";
$cipherby = "";
$cipher = "";
$a = 0;
$j = 0;
for ($i = 0; $i < strlen($data); $i++) {
$a = ($a + 1) % 256;
$j = ($j + $box[$a]) % 256;
$temp = $box[$a];
$box[$a] = $box[$j];
$box[$j] = $temp;
$k = $box[(($box[$a] + $box[$j]) % 256)];
$cipherby = ord(substr($data, $i, 1)) ^ $k;
$cipher .= chr($cipherby);
}
if ($case == 'de') {
$cipher = urldecode(urlencode($cipher));
} else {
$cipher = urlencode($cipher);
}
return $cipher;
}
}
?>

Thanks in advance!

Raphael Pirker

[vek]

I have been working on moving some of the php functions to c for me to use in cgi, so here are some that might help you.

Code:

int substr(char* str, char* substr, int offset, int length)
{
   int s_length = strlen(str);

   if ((str != NULL) && (length > 0))
   {
      if (offset >= 0)
      {
         if ((length - offset) >= s_length)
         {
            length = s_length - offset;
         }
      }
      else
      {
         if ((length - (s_length + offset)) >= (s_length + offset))
         {
            length = s_length - (s_length + offset);
         }
         offset = s_length + offset;
      }
      if ((offset >= 0) && ((s_length - 1) >= offset) &&
          (s_length >= (offset + length)))
      {
         strncpy(substr, str + offset, length);
         substr[length] = '\0';
         return(TRUE);
      }
      else if ((offset < 0) && (s_length >= (offset * -1)) &&
               (s_length >= ((s_length + offset) + length)))
      {
         strncpy(substr, str + (s_length + offset), length);
         substr[length] = '\0';
         return(TRUE);
      }
   }
   else if ((str != NULL) && (length < 0))
   {
      if (offset < 0)
      {
         offset = s_length + offset;
      }
      if ((offset >= 0) && ((s_length - 1) >= offset) &&
          (s_length > (length * -1)) &&
          ((s_length + length) > offset) &&
          (s_length >= ((s_length + length) - offset)))
      {
         strncpy(substr, str + offset, ((s_length + length) - offset));
         substr[((s_length + length) - offset)] = '\0';
         return(TRUE);
      }
   }

   substr[0] = '\0';
   return(FALSE);
}

int substr_compare(char* str1, char* str2, int offset, int length)
{
   char *substr;
   int ret;

   substr = (strlen(str1) > strlen(str2)) ? ((char *)calloc(strlen(str1) + 1, sizeof(char))) : ((char *)calloc(strlen(str2) + 1, sizeof(char)));

   substr(str1, substr, offset, length);

   ret = strcmp(substr, str2);

   free(substr);

   return(ret);
}

char chr(int ascii)
{
   return((char)ascii);
}

int ord(char chr)
{
   return((int)chr);
}