IOS 학습 - iPhone IP 주소 얻기

1234 단어
#include <ifaddrs.h>
#include <arpa/inet.h>
  
  
- (NSString *)getIPAddress
{
    NSString *address = @"error";
    struct ifaddrs *interfaces = NULL;
    struct ifaddrs *temp_addr = NULL;
    int success = 0;
  
    // retrieve the current interfaces - returns 0 on success
    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)
            {
                // Check if interface is en0 which is the wifi connection on the iPhone
                if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en1"])
                {
                    // Get NSString from C String
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            }
  
            temp_addr = temp_addr->ifa_next;
        }
    }
  
    // Free memory
    freeifaddrs(interfaces);
  
    return address;
}

다음으로 전송:http://www.sharejs.com/codes/objectc/3902

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