Yes, i have read the page and understand that migration to IPv6 when the application is developed in pure JAVA is easy. But i don't know why the Browser uses getaddrinfo(), which is a C function, to deal with IPv6 connection.
When we build the OS, we can specify the kernel config file to build against. The "CONFIG_IPV6" is one item in the kernel config file and if it is set, something may read this file and adds/builds an IPv6 module containing the lower layer support for IPv6 connectivity. I would like to know what is doing this and what module(s) are added in order to design a full-functional IPv6 DNS for android. Yes, this page helps me understand IPv6 support in JAVA. I may consider developing IPv6 DNS in pure JAVA~but before that, i think i have to know why getaddrinfo() doesn't work when "CONFIG_IPV6" is not set. Thanks very much. Best wishes, Jiechao Wang On Feb 7, 9:15 pm, Kostya Vasilyev <kmans...@gmail.com> wrote: > According to the link I posted before: > > http://download.oracle.com/javase/1.5.0/docs/guide/net/ipv6_guide/ind... > > getaddrinfo() is IPv6-aware, but of course depends on kernel support > being there. > > So go head and read that page, I think it goes a long way towards > answering your question. > > -- Kostya > > 07.02.2011 16:06, 捷超 王 пишет: > > > > > > > > > > > The Browser utilizes an JAVA class named InetAddress and this class > > further calls the "getaddrinfo" native method to resolve the URLs. > > I am still not sure what reads the changed kernel config file and > > contributes to the changed behavior of the Browser.apk. Is build/core/ > > main.mk? > > > On Feb 7, 1:48 am, Kostya Vasilyev<kmans...@gmail.com> wrote: > >> From the group's description on Google Groups: > > >>http://groups.google.com/group/android-developers > > >>> Discuss developing Android applications using the Android SDK. Get > >>> help with troubleshooting apps, advice on implementation, and > >>> strategies for improving your app's speed and user experience. > >> The kernel is not a part of the SDK, and rebuilding it is not a part of > >> the process of using the SDK. > > >> Those other lists (esp. porting) has subscribers who routinely rebuild > >> the kernel, so you'll have a higher chance of getting a good answer. > > >> BTW, the following link: > > >>http://download.oracle.com/javase/1.5.0/docs/guide/net/ipv6_guide/ind... > > >> says that Java applications don't need to worry about choosing a > >> specific IP version, it's automatic - although I don't know if the > >> browser uses Java for networking. > > >> -- Kostya > > >> 06.02.2011 20:34, 捷超 王 пишет: > > >>> OK. Thank you. > >>> But i would like to know, what problems are appropriate to post here? > >>> On Feb 7, 12:04 am, Kostya Vasilyev<kmans...@gmail.com> wrote: > >>>> Perhaps the browser always recognizes IPv6 addresses, and tries to use > >>>> them? > >>>> If IPv6 is disabled in the kernel, trying to use a v6 socket should > >>>> fail, and hence you can't open a v6 site. Once kernel support is > >>>> enabled, the rest would work automatically. > >>>> You might also want to post your question on a more appropriate list: > >>>>http://groups.google.com/group/android-platform > >>>>http://groups.google.com/group/android-porting > >>>> -- Kostya > >>>> 06.02.2011 18:29, 捷超 王 пишет: > >>>>> Hi, everyone~ > >>>>> I have been recently studying on why the Browser in the android OS > >>>>> does not support accessing IPv6 websites through IPv6 URLs. > >>>>> At first, I built the source code with "CONFIG_IPV6" not set and tried > >>>>> IPv6 URLs in the Browser and the Browser could not access IPv6 > >>>>> websites. I then built the source code with "CONFIG_IPV6" set and > >>>>> tried again, the Browser works! > >>>>> But i don't get it. I think the source code of the Browser hasn't been > >>>>> changed, how it can be that the Browser suddenly support accessing > >>>>> websites through IPv6 URLs...? Is it the new kernel config file > >>>>> introduce some modules to be included in the final iso image so that > >>>>> the Browser which utilizes these modules is able to access websites > >>>>> through IPv6 URLs? > >>>>> I just need a hint, such as what reads the changed kernel config file > >>>>> and contributes to the changed behavior of the Browser.apk. > >>>>> Best wishes and thanks in advance! > >>>> -- > >>>> Kostya Vasilyev -- WiFi Manager + pretty widget > >>>> --http://kmansoft.wordpress.com > >> -- > >> Kostya Vasilyev -- WiFi Manager + pretty widget > >> --http://kmansoft.wordpress.com > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget > --http://kmansoft.wordpress.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en