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IOS 获取手机ip地址

2024-07-15 22:55:58   221人阅读

#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:@"en0"]) {
                    // 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;
}


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