[3R1C]

say my ip is 12.345.67.89
but my fully qualified domain name is sp1-12.345.67.89.charter-stl.com
(as listed in sharing system pref pane)
how can my app get the users FQDN not just the ip?

[Marshall]

Originally posted by 3R1C:
how can my app get the users FQDN not just the ip?

Try:

Code:
NSString *hostName = [[NSHost currentHost] name];

[3R1C]

That gives like the name of the machine. In my case 'Mobius'.

[Marshall]

Originally posted by 3R1C:
That gives like the name of the machine. In my case 'Mobius'.

Ah, on my machines it's giving me the fully qualified name, but they both have static IP's. I don't have a means of testing it with, say, a name assigned by a DHCP server.

That being said, have you tried going through the names array returned by NSHost (i.e. [[NSHost currentHost] names])? That gives me both the FQDN and "localhost".

[3R1C]

that gives 3 diff names.

mobius
mobius.home.charter-stl.com
localhost

the middle one is close, but not right.

i do utillize dhcp.

[3R1C]

well, im getting closer.
I found something called nslookup. This returns right info amoung other info.

like this:


[mobius:~] xaos01% nslookup 12.34.56.78
Server: ns1.charter-stl.com
Address: 24.217.0.3

Name: SP1-12.34.56.78.charter-stl.com
Address: 24.207.212.127


the Name line is the good line.
so should I just slap this in an NSTask and parse out the good stuff?
do all installs of osx have nslookup?
does this ring any bells for people who know cocoa as to a better way to accomplish this?

[rcavanaugh]

You can use standard c within objective-c. So take a look at gethostbyaddr() .