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* Addresses: Add listing capability for internal interfaces

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This commit is contained in:
zzz
2010-12-26 12:31:01 +00:00
parent ff0c168d65
commit c54b40288b
1 changed files with 39 additions and 5 deletions
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44
router/java/src/net/i2p/router/transport/Addresses.java
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@ -31,17 +31,40 @@ public class Addresses {
}
/**
* @return an array of all addresses, excluding
* @return a sorted array of all addresses, excluding
* IPv6, local, broadcast, multicast, etc.
*/
public static String[] getAddresses() {
return getAddresses(false);
}
/**
* @return a sorted array of all addresses, excluding
* only link local and multicast
* @since 0.8.3
*/
public static String[] getAllAddresses() {
return getAddresses(true);
}
/**
* @return a sorted array of all addresses
* @param whether to exclude IPV6 and local
* @return an array of all addresses
* @since 0.8.3
*/
public static String[] getAddresses(boolean all) {
Set<String> rv = new HashSet(4);
try {
InetAddress localhost = InetAddress.getLocalHost();
InetAddress[] allMyIps = InetAddress.getAllByName(localhost.getCanonicalHostName());
if (allMyIps != null) {
for (int i = 0; i < allMyIps.length; i++)
add(rv, allMyIps[i]);
for (int i = 0; i < allMyIps.length; i++) {
if (all)
addAll(rv, allMyIps[i]);
else
add(rv, allMyIps[i]);
}
}
} catch (UnknownHostException e) {}
@ -50,7 +73,10 @@ public class Addresses {
NetworkInterface ifc = ifcs.nextElement();
for(Enumeration<InetAddress> addrs = ifc.getInetAddresses(); addrs.hasMoreElements();) {
InetAddress addr = addrs.nextElement();
add(rv, addr);
if (all)
addAll(rv, addr);
else
add(rv, addr);
}
}
} catch (SocketException e) {}
@ -79,8 +105,16 @@ public class Addresses {
set.add(ip);
}
private static void addAll(Set<String> set, InetAddress ia) {
if (ia.isLinkLocalAddress() ||
ia.isMulticastAddress())
return;
String ip = ia.getHostAddress();
set.add(ip);
}
public static void main(String[] args) {
String[] a = getAddresses();
String[] a = getAddresses(true);
for (String s : a)
System.err.println("Address: " + s);
}