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<TITLE> [Mono-osx] [Mono-dev] [PATCH] Simple implementation of network interface properties for Mac OS X
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<H1>[Mono-osx] [Mono-dev] [PATCH] Simple implementation of network interface properties for Mac OS X</H1>
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<B>Alex Shulgin</B>
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<A HREF="mailto:mono-osx%40lists.ximian.com?Subject=%5BMono-osx%5D%20%5BMono-dev%5D%20%5BPATCH%5D%20Simple%20implementation%20of%20network%0A%20interface%20properties%20for%20Mac%20OS%20X&In-Reply-To=4A0D86D9.50306%40yessoftware.com"
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TITLE="[Mono-osx] [Mono-dev] [PATCH] Simple implementation of network interface properties for Mac OS X">alexander.shulgin at yessoftware.com
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</A><BR>
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<I>Tue Jun 30 11:09:50 EDT 2009</I>
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<LI>Previous message: <A HREF="002382.html">[Mono-osx] Announcing the release of Mono 2.4.2
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<!--beginarticle-->
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<PRE>Alex Shulgin wrote:
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><i> Alex Shulgin wrote:
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</I>>><i> Hi,
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</I>>><i>
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</I>>><i> In the current version System.Net.NetworkInformation.NetworkInterface
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</I>>><i> provides limited information about network interfaces on the system
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</I>>><i> (their names only).
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</I>>><i>
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</I>>><i> The attached patch adds support for NetworkInterfaceType and
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</I>>><i> GetPhysicalAddress() on Mac OS.
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</I>><i>
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</I>><i> Oops, I've almost forgot about IPv6... and missed the added file
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</I>><i> MacOsNetworkInterfaceMarshal.
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</I>><i>
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</I>><i> Please see the fixed patch instead.
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</I>
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This worked fine, until one user reported a crash on Array.Copy in
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NetworkInformation.MacOsNetworkInterface.ImplGetAllNetworkInterfaces().
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I traced this down to that I believe is a problem with non-standard
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length interface name: thus the 12-byte buffer sockaddr_dl.sdl_data is
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not enough.
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I've noticed that sockaddr_dl contains sdl_len member which holds the
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length of the whole sockaddr structure. With that we can use
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Marshal.Copy instead of Array.Copy to access data past default 12-byte
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data array. A patch against trunk is attached.
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I didn't have a chance to try it with the problematic user, but still
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would like someone to review the patch and comment on it.
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--
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Alex
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PS: is there more appropriate way to increment IntPtr value w/o using
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ToInt64()?
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-------------- next part --------------
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A non-text attachment was scrubbed...
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Name: macos-network-interfaces-impl-new.patch
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Type: text/x-patch
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Size: 859 bytes
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Desc: not available
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Url : <A HREF="http://lists.ximian.com/pipermail/mono-osx/attachments/20090630/c15fc44a/attachment.bin">http://lists.ximian.com/pipermail/mono-osx/attachments/20090630/c15fc44a/attachment.bin</A>
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</PRE>
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