On Mar 19, 2008, at 4:31 PM, Sherm Pendley wrote:
Looks reasonable. Now if I could only figure out why I forgot about
NSSocketPort...
I think maybe I need to write a network app to jog my memory.
Obviously I haven't looked at these classes recently enough. :-)
I couldn't get it to work. Apple's documentation makes it sound like
NSSocketPort can work for general network sockets, but a little
Googling led me to some old postings that say it was really only ever
designed for use with DO and doesn't work as advertised as a full-
service socket wrapper.
I did get the process as you described working fine in a little test
app, except for one thing - I can only get it to work if I provide the
address as dot separated octets, like:
NSString *address = @"66.250.146.128";
struct sockaddr_in addr;
bzero( &addr, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr([address UTF8String]);
addr.sin_port = htons( 119 );
int fd = socket( AF_INET, SOCK_STREAM, 0 );
if ( connect( fd, (struct sockaddr *)&addr, sizeof(addr)) < 0 )
{
NSLog(@"Error connecting");
return;
}
self.fh =[[[NSFileHandle alloc] initWithFileDescriptor:fd]
autorelease];
[fh writeData:[@"LIST NEWSGROUPS\r\n" dataUsingEncoding:
NSUTF8StringEncoding]];
[fh readInBackgroundAndNotify];
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self selector:@selector(finish:)
name:NSFileHandleReadToEndOfFileCompletionNotification object:fh];
[nc addObserver:self selector:@selector(process:)
name:NSFileHandleReadCompletionNotification object:fh];
But I'm darned if I can figure out how to get it to work with a
hostname (like @"apple.com"). I've tried using gethostbyname and a few
other things I've found on the web, but nothing seems to work except
using the octet string, although I'm sure that's just because I
haven't worked with sockets in years and am forgetting something
really stupid. :)
Thanks for all the help.
Jeff
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