objective-c - 如何在 Cocoa/Objective-C 中编写 Ping 方法？

Question

这个问题“How to write a Ping method in Cocoa/Objective-C”中的方法没有帮助，因为它只评估机器外是否有可能到达目标域的路径。所以基本上几乎每个您测试的主机都将显示为可访问，即使它不是。

Answer 1

查看 SimplePing 的 Apple 相同代码

SimplePing demonstrates ping (ICMP) send and receive. The sample runs on Mac OS X 10.5 and later, although the core code works just fine on all versions of iPhone OS and the underlying approach works on earlier versions of Mac OS X