如何在iphone中获取dns服务器ip [英] how to get dns server ip in iphone

问题描述

我试图通过
open（/ etc / resolv.conf，0644）获取/etc/resolv.conf

但是它返回-1和errno是2，这意味着不这样的文件

我可以做什么？

解决方案

您无法访问应用程序沙箱外的文件。

I have tried to fetch /etc/resolv.conf by open("/etc/resolv.conf", 0644)

but it return -1 and the errno is 2 which means "no such file"

what can I do?

解决方案

You can't access files outside your Application's sandbox.

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