Getting IP Address information from an NSNetService object

Question

I have an NSNetService object that I received from doing a Bonjour discovery. This object represents a web server that I want to connect to.
I have the following (nasty) code for doing that:
- (void) serviceReceived:(BonjourViewController*)bvc didResolveInstance:(NSNetService*)ref;
if (ref == nil) {
// The resolve was cancelled.
return;
NSArray* addressArray = [ref addresses];
if ([addressArray count] == 0) {
return;
NSData* address = [addressArray objectAtIndex:0];
void* buffer[[address length]];
[address getBytes:buffer];
int ipAddress = (int) buffer[1];
int classA = ipAddress & 0x000000FF;
int classB = (ipAddress & 0x0000FF00) >> 8;
int classC = (ipAddress & 0x00FF0000) >> 16;
int classD = (ipAddress & 0xFF000000) >> 24;
int port = [ref port];
NSString* hostName = [NSString stringWithFormat:@"%d.%d.%d.%d:%d", classA, classB, classC, classD, port];
NSURL* url = [[NSURL alloc] initWithScheme:@"http" host:hostName path:@"/index.html"];
I can't just use the hostname because it's not a valid DNS entry, and the Bonjour name doesn't work with most of the libraries like:
NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:URL];
Oddly enough, Safari is perfectly happy with the Bonjour name "compname.local.".
There must be a better way of getting an NSString with the dotted-quad than getting the bytes and manually picking apart the IP address from them. This code breaks as soon as we all move to IPv6.
Any help would be appreciated,
-Chris.
Message was edited by: clevans
Message was edited by: clevans

Answer 1

Use an application bean if you want to keep a list of
all the users stored on a server.
When someone logs on, grab the ip, login name, and
password. Store this in the application scope bean.
Every time a page is accessed, check the ip to see if
it has been previously stored in the bean. If so,
load the login and password and use them for logging
in to the page. If not, include another preset login
page, or lik to it with the previous page stored in a
session scope bean.
The ips, login names, and passwords should be enclosed
in a class (simple one with three fields). When
someone logs on, create a new instance and send it to
the application scope bean, where it should be stored
in a java.util.HashMap (my favorite kind, and really
quick).
There should also be a way to time-out the user after
a while of not connecting - removing their ip from the
application scope bean. Very important if you want
security.
That's all I can think of for now.
Spaceman40Close enough, however I will point out that you don't need to store the password. I am also confused why you are saying an application level bean. This needs to be a bean that can be accessed by all of our applications. If one application creates the bean all of them should be able to see it.
I was thinking of doing this: Each application gets a session bean that looks for an entity bean with the primary key of the client's IP address. If the bean is there it gets the user ID from that and logs that user into the system. If the bean isn't there, it fires off a login procedure for the client to enter their username and password. If the login is successful it creates the bean. The session bean stays around until the user logs out of the system. The last session bean linked to that entity bean destroys it.
Has anyone seen this before? Is there a design pattern for a last one out turn off the light in EJB?