Geroldr: NSNetService moved to NSNetServices

2009-01-24T09:57:37Z

NSNetService moved to NSNetServices

Cbv: added snippet

2007-01-23T10:04:37Z

added snippet

Cbv: stub

2007-01-07T14:27:00Z

stub

New page

{{stub}}

'''NSNetService''' lets you publish a network service in a domain using multicast DNS. Additionally, it lets you resolve a network service that was discovered by [[NSNetServiceBrowser]].

[[Category:Foundation]]

← Older revision		Revision as of 10:04, 23 January 2007
Line 2:		Line 2:

	'''NSNetService''' lets you publish a network service in a domain using multicast DNS. Additionally, it lets you resolve a network service that was discovered by [[NSNetServiceBrowser]].		'''NSNetService''' lets you publish a network service in a domain using multicast DNS. Additionally, it lets you resolve a network service that was discovered by [[NSNetServiceBrowser]].
		+
		+	== Code chunks ==
		+
		+	=== How to resolve an address ===
		+
		+	When you [[NSNetServiceBrowser\|browse]] for a service, your delegate will eventually receive a ''-netServiceBrowser:didFindService:moreComing:'' message.
		+
		+	- (void)netServiceBrowser: (NSNetServiceBrowser *) aNetServiceBrowser
		+	didFindService: (NSNetService *) aNetService
		+	moreComing: (BOOL) moreComing
		+	{
		+	[aNetService setDelegate: self];
		+	[aNetService resolve];
		+	}
		+
		+	When you send ''-resolve'' this will eventually result in a message sent to the delegate:
		+
		+	- (void) netServiceDidResolveAddress: (NSNetService *) sender
		+	{
		+	NSString *name = nil;
		+	NSData *address = nil;
		+	struct sockaddr_in *socketAddress = nil;
		+	NSString *ipString = nil;
		+	int port, i = 0;
		+
		+	// A service is published on ALL network addresses,
		+	// so ''-addresses'' may contain more than one IP
		+
		+	for( ; i < [[sender addresses] count]; i++ )
		+	{
		+	name = [sender name];
		+	address = [[sender addresses] objectAtIndex: i];
		+
		+	// IPs are sockaddr_in structures encapsulated in NSData...
		+
		+	socketAddress = (struct sockaddr_in *) [address bytes];
		+	ipString = [NSString stringWithFormat: @"%s", inet_ntoa(socketAddress->sin_addr)];
		+	port = socketAddress->sin_port;
		+	[...]
		+	}
		+	}
		+
		+	After you have the name, IP and port you are ready to use that information. You will probably store the information in an array so you can access it any time you need it.

	[[Category:Foundation]]		[[Category:Foundation]]
		+	[[Category:Snippets]]

← Older revision	Revision as of 09:57, 24 January 2009
(No difference)

NSNetServices - Revision history

Geroldr: NSNetService moved to NSNetServices

Cbv: added snippet

Cbv: stub