本文介绍了如何使用 Cocoa 或 Foundation 获取当前连接的网络接口名称?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要知道当前连接的网络接口的网络接口名称,如en0、lo0等.
I need to know the network interface name of the currently connected network interface, as in en0, lo0 and so on.
是否有 Cocoa/Foundation 函数可以提供这些信息?
Is there a Cocoa/Foundation function that is going to give me this information?
推荐答案
您可以循环浏览网络接口并获取其名称、IP 地址等.
You can cycle through network interfaces and get their names, IP addresses, etc.
#include <ifaddrs.h>
// you may need to include other headers
struct ifaddrs* interfaces = NULL;
struct ifaddrs* temp_addr = NULL;
// retrieve the current interfaces - returns 0 on success
NSInteger success = getifaddrs(&interfaces);
if (success == 0)
{
// Loop through linked list of interfaces
temp_addr = interfaces;
while (temp_addr != NULL)
{
if (temp_addr->ifa_addr->sa_family == AF_INET) // internetwork only
{
NSString* name = [NSString stringWithUTF8String:temp_addr->ifa_name];
NSString* address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
NSLog(@"interface name: %@; address: %@", name, address);
}
temp_addr = temp_addr->ifa_next;
}
}
// Free memory
freeifaddrs(interfaces);
以上结构中还有很多其他的标志和数据,希望你能找到你想要的.
There are many other flags and data in the above structures, I hope you will find what you are looking for.
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