Linksys WVC80N User Guide - Page 43

Appendix D else if(chr3 == (char)0) { enc4 = 64; } o_buf[j++] = keyStr[enc1]; o_buf[j++] = keyStr[enc2]; o_buf[j++] = keyStr[enc3]; o_buf[j++] = keyStr[enc4]; // OK, now clean out the variables used. chr1 = chr2 = chr3 = (char)0; enc1 = enc2 = enc3 = enc4 = (char)0; } while (i < strlen(i_buf )); //And finish off the loop //Now return the encoded values. return j; } // Description: decrypt the input data with the base64 // Input: // char i_buf[] - input buffer // Output: // char o_buf[] - output buffer // Return: // decrypted string length int decode64(char i_buf[], char o_buf[]) { //These are the 3 bytes to be encoded char chr1 = (char)0; char chr2 = (char)0; char chr3 = (char)0; //These are the 4 encoded bytes int enc1 = 0; int enc2 = 0; int enc3 = 0; int enc4 = 0; int i = 0, j = 0; //Position counter do { //Here's the decode loop. //Grab 4 bytes of encoded content. enc1 = (int)(strchr(keyStr, i_buf[i++]) - keyStr); if(i < strlen(i_buf )) enc2 = (int)(strchr(keyStr, i_buf[i++]) - keyStr); if(i < strlen(i_buf )) enc3 = (int)(strchr(keyStr, i_buf[i++]) - keyStr); if(i < strlen(i_buf )) enc4 = (int)(strchr(keyStr, i_buf[i++]) - keyStr); Wireless-N Internet Home Monitoring Camera CGI Commands 42