iOS擷取裝置的ip地址

標籤：

匯入以下標頭檔#include <stdio.h>#include <stdlib.h>#include <math.h>#include <string.h>#include <unistd.h>#include <sys/ioctl.h>#include <sys/types.h>#include <sys/sysctl.h>#include <sys/socket.h>#include <netinet/in.h>#include <netdb.h>#include <arpa/inet.h>#include <sys/sockio.h>#include <net/if.h>#include <net/ethernet.h>#include <errno.h>#include <net/if_dl.h>#include <ifaddrs.h>#include <mach/machine.h>

通過下面方法即可擷取ip地址
+ (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;}

 

iOS擷取裝置的ip地址