Angus, I finally got around to test this. I attached a spreadsheet with the results. I ran LocalIPList() with each socket family option. I also showed the results of IcsGetInterfaceList().
PC is running windows 10, Mac is running High Sierra LocalIPList: MAC - Missing second IPv4 address if called with no parameters - Returns duplicate entries PC - Missing second IPv6 address BOTH Returns IPv6 link-local address but not IPv4. IcsGetInterfaceList: PC - Missing IPv6 addresses So if you don't care about IPv6, link-local and filter any duplicates, it seems to work! Bill -----Original Message----- From: TWSocket [mailto:twsocket-boun...@lists.elists.org] On Behalf Of Angus Robertson - Magenta Systems Ltd Sent: Wednesday, January 3, 2018 6:32 AM To: twsocket@lists.elists.org Subject: Re: [twsocket] LocalIPList on Mac > 1) It seems that IcsGetInterfaceList() would fail if, for some odd > reason, the computer only had IPv6 interfaces. This would only be on Windows not MacOS, and I suspect it's impossible to install Windows without IPv4, too much stuff is dependent on it. > 2) This is my function to replace LocalIpList(). Not sure we need to replace it, what is the advantage of using IcsGetInterfaceList over the existing code (but see below)? > 3) As to the original LocalIPList() function, it seems that the code > at the top where it checks for ASocketFamily is not needed code in the > "else" section handles IPv4 just fine The 'else' stuff only works on Windows Vista and later, but not on Windows XP which still needs GetHostByName. While we don't officially support Windows XP or 2000, we also don't want to deliberately break ICS from working on them. But since GetHostByName is deprecated since Vista, I've changed the code so it's now only used for Windows XP and earlier, and never for MacOS, which should resolve your original problem. Or are you saying that GetAddrInfo only returns a single IP on MacOS as well? Testing on Windows 10, I see multiple IPv4 and IPv6 addresses using both LocalIpList and IcsGetInterfaceList, and no duplicates. Angus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
