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package com.macaroon.piztor;
import android.annotation.SuppressLint;
public class Convert {
@SuppressLint("DefaultLocale")
public static byte[] hexStringToBytes(String hexString) {
if (hexString == null || hexString.equals("")) {
return null;
}
hexString = hexString.toUpperCase();
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] d = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
}
return d;
}
public static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
public static byte[] intToBytes(int i) {
byte[] d = new byte[4];
d[0] = (byte)((i >> 24) & 0xFF);
d[1] = (byte)((i >> 16) & 0xFF);
d[2] = (byte)((i >> 8) & 0xFF);
d[3] = (byte)(i & 0xFF);
return d;
}
public static byte[] doubleToBytes(double d){
byte[] b=new byte[8];
long l=Double.doubleToLongBits(d);
for(int i=0;i<8;i++){
b[i] = (byte)(l >>> 8*(7-i));
}
return b;
}
public static void write(byte[] s,byte[] w,int l) {
for(int i=0;i<w.length;i++){
s[i+l] = w[i];
}
}
public static String byteToHexString(byte[] buffer){
String p ="";
for (int i = 0; i < buffer.length; i++) {
String hex = Integer.toHexString(buffer[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
p += hex;
}
return p;
}
}
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