/**
* Returns IP address string. Supports both IPv4 and IPv6 addresses.
*
* @see #setIPString(String)
* @return IP address string
*/
public String getIPString() {
if (isVersion4()) {
String ipString = "";
byte[] ip = moteMem.getByteArray("uip_hostaddr", 4);
for (int i = 0; i < 3; i++) {
ipString += (0xFF & ip[i]) + ".";
}
ipString += (0xFF & ip[3]);
return ipString;
} else if (isVersion6()) {
String ipString = "";
/* XXX Assuming fixed offset in struct uip_netif (uip-netif.h) */
int offset = 4 * 4 /* 4 uint32_t */ + 2 * moteMem.getIntegerLength() /* 2 uint8_t */;
byte[] tmp = moteMem.getByteArray("uip_netif_physical_if", offset + 16);
byte[] ip = new byte[16];
System.arraycopy(tmp, offset, ip, 0, 16);
int i = 0;
while (i < 14) {
int val = (0xFF & ip[i + 1]) + ((0xFF & ip[i]) << 8);
ipString += hex16ToString(val) + ".";
i += 2;
}
int val = (0xFF & ip[15]) + ((0xFF & ip[14]) << 8);
ipString += hex16ToString(val);
return ipString;
}
return null;
}
/** @return True if mote has an IPv6 address */
public boolean isVersion6() {
return moteMem.variableExists("uip_netif_physical_if");
}
/** @return True if mote has an IPv4 address */
public boolean isVersion4() {
return moteMem.variableExists("uip_hostaddr");
}