导入
#include <netdb.h>
#include <arpa/inet.h>
#include <ifaddrs.h>
#include <sys/socket.h>
#include <net/if.h>
代码：
- (NSString*)hostName
{
struct ifaddrs *addrs;
const struct ifaddrs *cursor;
int error;
error = getifaddrs(&addrs);
NSString *hostname = nil;
if (error)
{
NSLog(@"%s", gai_strerror(error));
}
for (cursor = addrs; cursor; cursor = cursor->ifa_next)
{
if (cursor->ifa_addr->sa_family == AF_INET && (cursor->ifa_flags & IFF_LOOPBACK) == 0)
{
NSString *ifa_name = [NSString stringWithUTF8String:cursor->ifa_name];
if([@"en0" isEqualToString:ifa_name] ||
[@"en1" isEqualToString:ifa_name])
{
hostname = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)cursor->ifa_addr)->sin_addr)];
NSLog(@"hostname:%@",hostname);
break;
}
}
}
freeifaddrs(addrs);
return hostname;
}
