October 2016 - Macnetworkprog

Re: wifi scanning on iOS?
by Quinn "The Eskimo!" 31 Oct '16

31 Oct '16

On 31 Oct 2016, at 14:19, Howard Shere <Howard.Shere(a)synchronoss.com> wrote: > is there a way to request the com.apple.wifi.manager-access entitlement so that our app can scan for wifi networks and connect to them? > > Or is there some other entitlement we can request? iOS does not have a general-purpose API for Wi-Fi scanning and configuration. However, there are a number of special-purpose APIs you might find useful: * NEHotspotHelper (iOS) — If your app helps the user navigate a hotspot (a Wi-Fi network where the user must interact with the network to gain access to the wider Internet), you should look at NEHotspotHelper, part of the Network Extension framework. See the “Hotspot Network Subsystem Programming Guide” for details. IMPORTANT: NEHotspotHelper requires that your app have special entitlements. The NEHotspotHelper API Reference has the details. * accessory configuration (iOS) — If you want to configure an accessory to join the user’s local network (for example, you’re creating a companion app for a set of wireless speakers and the goal is to get those speakers on to the user’s home network), you should look at Wireless Accessory Configuration (WAC). To learn more about WAC watch: - WWDC 2013 Session 700 Designing Accessories for iOS and OS X — This introduced WAC with the focus being on the Settings app. - WWDC 2014 Session 701 Designing Accessories for iOS and OS X — This discusses enhancements we made in iOS 8 that allow developers to configure their WAC accessory from within their app. IMPORTANT: To take advantage of WAC your accessory must be built under the aegis of the MFi program. * peer-to-peer networking (iOS, macOS, tvOS) — If your goal is to communicate with other nearby devices, you should look at: - NSNetService - Multipeer Connectivity Both of these support peer-to-peer networking over both Bluetooth and peer-to-peer Wi-Fi, although in the case of NSNetService you must opt in to that support by settings the includesPeerToPeer flag, as shown by Sample Code 'WiTap'. IMPORTANT: The on-the-wire protocols used by this peer-to-peer networking are not documented for third-party use, so this technique only works between Apple devices. * location (iOS, macOS, tvOS, watchOS) — If you’d like to use Wi-Fi data to determine the device’s location, we recommend you use Core Location. This locates the device using a wide variety of techniques, including Wi-Fi. For more information, see the Maps page on the developer web site. <https://developer.apple.com/maps/> * current Wi-Fi network (iOS) — If you’re interested in getting the name of the Wi-Fi network to which the device is currently associated, you can call CNCopyCurrentNetworkInfo, part of the System Configuration framework. Share and Enjoy -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Macnetworkprog mailing list (Macnetworkprog(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/macnetworkprog/site_archiver%40list… This email sent to site_archiver(a)lists.apple.com

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wifi scanning on iOS?
by Howard Shere 31 Oct '16

31 Oct '16

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Re: BSD Sockets read() resource temporarily unavailable
by Carl Hoefs 27 Oct '16

27 Oct '16

Out of curiosity, and to get more information, you could try: a) use FD_ISSET(2) to see if O_NONBLOCK is really set on the socket. If so, use FD_ZERO(2)/FD_SET(2) to clear O_NONBLOCK on the socket prior to read(2). c) use a select(2) call in front of the read(2) I would suspect O_NONBLOCK really isn't set, and there is more going on here than meets the eye... HTH, -Carl > On Oct 27, 2016, at 3:15 PM, Jeremy Thompson <jeremy(a)warehousesports.com> wrote: > > I have a strange problem that has showed up in OS X 10.11 and 10.12. My application is still using carbon libraries but all network communication is done through BSD sockets. When running the application on 10.11 in debug mode certain times the read() call will return with this error Resource temporarily unavailable. I could see this happening if the socket was in non-blocking mode but it is supposed to block. The resource temporarily unavailable error comes from perror. I tried getting the error from the socket with getsockopt and it returns an undefined error: 0. To make this a little bit more strange if I run this application in release mode none of this comes up. However, now in 10.12 i get this error in both debug and release mode. I first thought this may be a problem on the server side but it sends back correct data on a wireshark capture. I’m pretty sure its locked down to the client application. If I didn’t know better I would say that the socket is somehow getting set to non-blocking but I can’t prove it. This problem is nonexistent on 10.9 but I am unsure about 10.10 as I never debugged the code on that version. Any info would be greatly appreciated. > > Thanks, > Jeremy > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Macnetworkprog mailing list (Macnetworkprog(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/macnetworkprog/newslists%40autonomy… > > This email sent to newslists(a)autonomy.caltech.edu _______________________________________________ Do not post admin requests to the list. They will be ignored. Macnetworkprog mailing list (Macnetworkprog(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/macnetworkprog/site_archiver%40list… This email sent to site_archiver(a)lists.apple.com

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Re: BSD Sockets read() resource temporarily unavailable
by Andreas Fink 27 Oct '16

27 Oct '16

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Re: iOS NETunnelProviderRoutingMethod question
by Quinn "The Eskimo!" 27 Oct '16

27 Oct '16

On 27 Oct 2016, at 03:07, Kevin Yu <kevinyu(a)draytek.com> wrote: > If we choose the value to sourceApplication, does it imply that we can implement our Network Extension app works like the following: Yes. This is a feature known as Per-App VPN. > like how to select the specific App from iOS system? App selection is done by a configuration profile. See the “Per-App VPN Payload” section of “Configuration Profile Reference”. <https://developer.apple.com/library/content/featuredarticles/iPhoneConfigur…> In addition, because of the way app selection is done (each app must have an associated VPNUUID), this only works on managed devices. Share and Enjoy -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Macnetworkprog mailing list (Macnetworkprog(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/macnetworkprog/site_archiver%40list… This email sent to site_archiver(a)lists.apple.com

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iOS NETunnelProviderRoutingMethod question
by Kevin Yu 27 Oct '16

27 Oct '16

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Re: Transferring large files reliably
by Jens Alfke 08 Oct '16

08 Oct '16

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Re: Transferring large files reliably
by Carl Hoefs 07 Oct '16

07 Oct '16

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Re: Transferring large files reliably
by Shawn Erickson 07 Oct '16

07 Oct '16

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Re: Transferring large files reliably
by Carl Hoefs 07 Oct '16

07 Oct '16

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