358630 - [mac] nsIDNSService::resolve not working

Status: RESOLVED INVALID

(Core :: Networking, defect)

Description

[Michael Newton]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0

The following JS code generates an error on Mac; no problems in Windows:

var dns = Components.classes['@mozilla.org/network/dns-service;1'].getService(Components.interfaces.nsIDNSService);
alert(dns.resolve(dns.myHostName, dns.RESOLVE_BYPASS_CACHE | dns.RESOLVE_CANONICAL_NAME));

Reproducible: Always

Comment 1

[Michael Newton]

I should mention, the error is:
Error: Component returned failure code: 0x804b001e [nsIDNSService.resolve] = <unknown>

Comment 2

[Christian :Biesinger (don't email me, ping me on IRC)]

that's the error for an unknown host. what's dns.myHostName?

Comment 3

[Michael Newton]

It's the hostname of the local machine ('ibook4' in this case); I'm trying to get the IP address of the machine.

Comment 4

[Christian :Biesinger (don't email me, ping me on IRC)]

can other apps resolve that hostname?

Comment 5

[Michael Newton]

Hmm, nslookup won't work with it. I think I see where you're going with this: the resolve function just calls the OS's GetHostByName function, and if that doesn't resolve the name I'm out of luck.

I'm the author of the extension in the URL field; someone just told me it's not working on a Mac, so I filed this bug. Surely there must be some way for *nix browsers to get the local IP address?

Comment 6

[Michael Newton]

If what I said in comment 5 is confirmed, I'll resolve this as invalid.

Comment 7

[Christian :Biesinger (don't email me, ping me on IRC)]

assuming that comment 5 was correct; marking invalid.