iOS获取手机的IP地址

一时失言乱红尘 2021-09-11 04:10 487阅读 0赞

1.添加这五个库（在联网的情况下）

#import <sys/socket.h>
 #import <sys/sockio.h>
 #import <sys/ioctl.h>
 #import <net/if.h>
 #import <arpa/inet.h>

2.写一个方法

- (NSString *)getDeviceIPIpAddresses
 {
 int sockfd =socket(AF_INET,SOCK_DGRAM, 0);
 // if (sockfd < 0) return nil;
 NSMutableArray *ips = [NSMutableArrayarray];
 int BUFFERSIZE =4096;
 structifconf ifc;
 char buffer[BUFFERSIZE], *ptr, lastname[IFNAMSIZ], *cptr;
 structifreq *ifr, ifrcopy;
 
 ifc.ifc_len = BUFFERSIZE;
 ifc.ifc_buf = buffer;
 
 if (ioctl(sockfd,SIOCGIFCONF, &ifc) >= 0){
 for (ptr = buffer; ptr < buffer + ifc.ifc_len; ){
 ifr = (structifreq *)ptr;
 int len =sizeof(structsockaddr);
 if (ifr->ifr_addr.sa_len > len) {
 len = ifr->ifr_addr.sa_len;
 }
 ptr += sizeof(ifr->ifr_name) + len;
 if (ifr->ifr_addr.sa_family !=AF_INET) continue;
 
 if ((cptr = (char *)strchr(ifr->ifr_name,':')) != NULL) *cptr =0;
 
 if (strncmp(lastname, ifr->ifr_name,IFNAMSIZ) == 0)continue;
 
 memcpy(lastname, ifr->ifr_name,IFNAMSIZ);
 
 ifrcopy = *ifr;
 ioctl(sockfd,SIOCGIFFLAGS, &ifrcopy);
 
 if ((ifrcopy.ifr_flags &IFF_UP) == 0)continue;
 
 NSString *ip = [NSString stringWithFormat:@"%s",inet_ntoa(((structsockaddr_in *)&ifr->ifr_addr)->sin_addr)];
 [ips addObject:ip];
 }
 }
 close(sockfd);
 
 NSString *deviceIP =@"";
 for (int i=0; i < ips.count; i++)
 {
 if (ips.count >0)
 {
 deviceIP = [NSStringstringWithFormat:@"%@",ips.lastObject];
 }
 }
 NSLog(@"deviceIP========%@",deviceIP);
 return deviceIP;
 }

stackoverflow上找到一种方法，能实时获取IP

#include <ifaddrs.h>
 #include <arpa/inet.h>
 #include <net/if.h>
 
 #define IOS_CELLULAR @"pdp_ip0"
 #define IOS_WIFI @"en0"
 //#define IOS_VPN @"utun0"
 #define IP_ADDR_IPv4 @"ipv4"
 #define IP_ADDR_IPv6 @"ipv6"
 
 - (NSString *)getIPAddress:(BOOL)preferIPv4
 {
 NSArray *searchArray = preferIPv4 ?
 @[ /*IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6,*/ IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6 ] :
 @[ /*IOS_VPN @"/" IP_ADDR_IPv6, IOS_VPN @"/" IP_ADDR_IPv4,*/ IOS_WIFI @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4 ] ;
 
 NSDictionary *addresses = [self getIPAddresses];
 NSLog(@"addresses: %@", addresses);
 
 __block NSString *address;
 [searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop)
 {
 address = addresses[key];
 if(address) *stop = YES;
 } ];
 return address ? address : @"0.0.0.0";
 }
 
 - (NSDictionary *)getIPAddresses
 {
 NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];
 
 // retrieve the current interfaces - returns 0 on success
 struct ifaddrs *interfaces;
 if(!getifaddrs(&interfaces)) {
 // Loop through linked list of interfaces
 struct ifaddrs *interface;
 for(interface=interfaces; interface; interface=interface->ifa_next) {
 if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) {
 continue; // deeply nested code harder to read
 }
 const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr;
 char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
 if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) {
 NSString *name = [NSString stringWithUTF8String:interface->ifa_name];
 NSString *type;
 if(addr->sin_family == AF_INET) {
 if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) {
 type = IP_ADDR_IPv4;
 }
 } else {
 const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr;
 if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) {
 type = IP_ADDR_IPv6;
 }
 }
 if(type) {
 NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];
 addresses[key] = [NSString stringWithUTF8String:addrBuf];
 }
 }
 }
 // Free memory
 freeifaddrs(interfaces);
 }
 return [addresses count] ? addresses : nil;
 }

第三种方法

//获取公网IP非局域网IP

直接访问此网址 NSString *url = @"http://ip.taobao.com/service/getIpInfo.php?ip=myip";

<span style="color: rgb(85, 85, 85); font-family: Menlo, Monaco, Consolas, "Helvetica Neue", Helvetica, "Courier New", 微软雅黑, monospace, Arial, sans-serif, 黑体; font-size: 14px; background-color: transparent;">网址返回的JSON数据段<pre class="hljs objectivec" name="code" style="white-space: pre-wrap; word-wrap: normal; padding: 9.5px; background: rgb(253, 246, 227); margin-top: 0px; margin-bottom: 20px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace; line-height: 20px; word-break: break-all; overflow: auto;"><code class="objectivec" style="padding: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace; font-size: 12px; border: none; background-color: transparent;">    {<span class="json_key" style="color: rgb(146, 39, 143); font-weight: bold; font-family: Menlo, Monaco, Consolas, "Helvetica Neue", Helvetica, "Courier New", 微软雅黑, monospace, Arial, sans-serif, 黑体; font-size: 14px;">"code":<span class="json_number" style="color: rgb(37, 170, 226); font-weight: bold; font-family: Menlo, Monaco, Consolas, "Helvetica Neue", Helvetica, "Courier New", 微软雅黑, monospace, Arial, sans-serif, 黑体; font-size: 14px;">0,     <span class="json_key" style="color: rgb(146, 39, 143); font-weight: bold; font-family: Menlo, Monaco, Consolas, "Helvetica Neue", Helvetica, "Courier New", 微软雅黑, monospace, Arial, sans-serif, 黑体; font-size: 14px;">"data":{
         "country":"中国",
         "country_id":"CN",
         "area":"华东",
         "area_id":"300000",
         "region":"上海市",
         "region_id":"310000",
         "city":"上海市",
         "city_id":"310100",
         "county":"浦东",
         "county_id":"334115",
         "isp":"电信",
         "isp_id":"100227",
         "ip":"126.231.115.34"
     } }</code>

<pre class="hljs objectivec" name="code" style="white-space: pre-wrap; word-wrap: normal; padding: 9.5px; background: rgb(253, 246, 227); margin-top: 0px; margin-bottom: 20px; line-height: 20px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace; word-break: break-all; overflow: auto;">- (void)urlRequestOperation{    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{        NSString *URLTmp1 = @"http://1212.ip138.com/ic.asp";        NSString *URLTmp = [URLTmp1 stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];        NSData * resData = [NSData dataWithContentsOfURL:[NSURL URLWithString:URLTmp]];        dispatch_async(dispatch_get_main_queue(), ^{            if (resData) {                //系统自带JSON解析                NSStringEncoding gbkEncoding = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);		//您的IP是：[122.222.122.22] 来自：上海市某某区 某某运营商
                 NSString *str3 = [[NSString alloc] initWithData:resData encoding:gbkEncoding];   		}        });    });}

<pre class="hljs objectivec" name="code" style="white-space: pre-wrap; word-wrap: normal; padding: 9.5px; background: rgb(253, 246, 227); font-family: Menlo, Monaco, Consolas, "Courier New", monospace; margin-top: 0px; margin-bottom: 20px; line-height: 20px; word-break: break-all; overflow: auto;"><code class="objectivec" style="padding: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace; font-size: 12px; background-color: transparent; border: none;">//获取局域网IP地址
 - (NSString *)getIpAddresses{
 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;
 }</code>