链接到iphone上的图书馆 [英] linking against a library on iphone

问题描述

我需要链接到libresolv库，并使用它找到我的dns ip。

I need to link against libresolv library , and use it to find my dns ip.

有关如何做的建议吗？

Any advice on how to do that ?

编辑：

如何找到dns ip使用此库？ / p>

And how to find dns ip Using this library ?

推荐答案

在Xcode3中，左边你应该有一个名为System Frameworks的文件夹或类似的东西，像Foundation.framework和UIKit.framework。右键单击该文件夹，选择添加>现有框架...，然后从列表中选择libresolv.dylib。

In Xcode3, on the left you should have a folder called "System Frameworks" or something like that were there are already other frameworks like Foundation.framework and UIKit.framework. Right-click on that folder, select "Add > Existing frameworks..." and select "libresolv.dylib" from the list.

>：我终于找到了如何做到这一点在Xcode4 ...在左边，在导航器中，选择最左边的图标（Project，Command-1）。在下面的树中，单击最上面的项目，它是您的项目。接下来，您需要在中心视图的左侧列中选择目标。选择构建阶段选项卡。你现在看到一堆可以展开的项目。展开链接二进制库与库构建阶段，在该框的左下角是一个+按钮（添加项目）。单击，然后从列表中选择libresolv.dylib。 。。比Xcode3，IMHO更难找到。

Edit: I finally found out how to do this in Xcode4... on the left, in the navigator, select the left-most icon (Project, Command-1). In the tree below, click on the top-most item which is your project. Next, you need to select your target in the left column of the center view. Select the "Build Phases" tab. You now see a bunch of items that can be expanded. Expand the "Link Binary With Libraries" build phase, on the lower-left of that box is a "+" button ("Add items"). Click that, then select "libresolv.dylib" from the list. Phew. A lot harder to find than in Xcode3, IMHO.

编辑2 ：如果所有你想做的是解决主机名的IP地址那么你不需要链接到libresolv（AFAIK）。请参见 3解决方案中解决主机名的方法，并查看如何在iOS上执行DNS查询。

Edit 2: If all you want to do is resolve the IP address of a hostname then you don't need to link libresolv (AFAIK). See 3 Ways to Resolve a Hostname in iOS for solutions and see the question How to perform DNS query on iOS.

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