IOS開發之判斷iPhone連線的網路(WIFI,2G,3G,4G)是IPV4還是IPV6網路
阿新 • • 發佈:2019-01-26
可能問題太簡單了,在網上沒有找到答案,只好我自己寫了。
由於蘋果稽核我們的應用在ipv6環境下,無法連線到伺服器。所以把原來的用IP作為請求網址改成了域名來發請求。雖然稽核過了,但是在國內還有域名解析的問題,使用域名有可能沒有解析到ip地址,有可能解析的ip地址不正確(可能域名轉發引起的,域名轉發已經被國家禁止)。
所以我想如果手機當前連線的ipv4的網路,還用原來的ip請求。如果手機連線的是ipv6網路,則使用域名連線。
下面我對不同的裝置分別使用ipv4(wifi,4G)和ipv6(wifi)網路進行測試:
IPV4 | IPV6 | |
IPAD(WIFI) | en0/ipv4 = 192.168.2.90, lo0/ipv6 = fe80::1, awdl0/ipv6 = fe80::5cbf:1aff:fe4e:ef38, en0/ipv6 = fe80::ae:8811:f45b:198a, lo0/ipv4 = 127.0.0.1 |
en0/ipv4 = 169.254.229.160, lo0/ipv6 = fe80::1, awdl0/ipv6 = fe80::5cbf:1aff:fe4e:ef38, en0/ipv6 = 2001:2::aab1:6005:dcd1:6ffd:63e4, lo0/ipv4 = 127.0.0.1 |
IPHONE6(WIFI) | en0/ipv4 = 192.168.8.110, lo0/ipv6 = fe80::1, awdl0/ipv6 = fe80::b84d:41ff:fe6e:2925, en0/ipv6 = fe80::435:13b1:816c:9db9, lo0/ipv4 = 127.0.0.1 |
en0/ipv4 = 169.254.87.24, lo0/ipv6 = fe80::1, awdl0/ipv6 = fe80::b84d:41ff:fe6e:2925, en0/ipv6 = 2001:2::aab1:b19e:527a:45d3:9f, lo0/ipv4 = 127.0.0.1 |
IPHONE6S(WIFI) | en0/ipv4 = 192.168.2.94, lo0/ipv6 = fe80::1, awdl0/ipv6 = fe80::a0ff:ddff:fec0:a676, en0/ipv6 = fe80::444:d26c:1b78:8f89, lo0/ipv4 = 127.0.0.1, utun0/ipv6 = fe80::3213:2aa4:9fed:9339 |
|
IPHONE6PLUS (4G) |
lo0/ipv6 = fe80::1, pdp_ip0/ipv4 = 10.241.179.135, lo0/ipv4 = 127.0.0.1, utun0/ipv6 = fe80::e7dd:8eef:da5e:f8f7 |
|
IPHONE4(WIFI) | lo0/ipv4 = 127.0.0.1, en0/ipv4 = 192.168.2.138, lo0/ipv6 = fe80::1, en0/ipv6 = fe80::1420:27e5:d334:e8de |
lo0/ipv4 = 127.0.0.1, en0/ipv4 = 169.254.120.241, lo0/ipv6 = fe80::1, en0/ipv6 = 2001:2::aab1:509d:9f42:38e0:a945 |
經過分析發現:
1.lo0/ipv6 = fe80::1,這個是固定的
2.lo0/ipv4 = 127.0.0.1 這個也是固定的
3.ipv6下 en0/ipv4 = 169.254.120.241,是固定的
4.ipv4下:awdl0/ipv6,en0/ipv6,utun0/ipv6對應的值都是fe80 開頭
結論:在ipv6下,awdl0/ipv6,en0/ipv6,utun0/ipv6對應的值肯定有一個不是以fe80 開頭
還有好多情況沒有考慮eg:VPN
下面開始寫程式碼來判斷:
匯入標頭檔案和巨集定義
#define IOS_CELLULAR @"pdp_ip0"
#define IOS_WIFI @"en0"
#define IOS_VPN @"utun0"
#define IP_ADDR_IPv4 @"ipv4"
#define IP_ADDR_IPv6 @"ipv6"
#import <ifaddrs.h>
#import <arpa/inet.h>
#import <net/if.h>
新增兩個方法
+ (BOOL)isIpv6{
NSArray *searchArray =
@[ 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 BOOL isIpv6 = NO;
[searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop)
{
NSLog(@"---%@---%@---",key, addresses[key] );
if ([key rangeOfString:@"ipv6"].length > 0 && ![[NSString stringWithFormat:@"%@",addresses[key]] hasPrefix:@"(null)"] ) {
if ( ![addresses[key] hasPrefix:@"fe80"]) {
isIpv6 = YES;
}
}
} ];
return isIpv6;
}
+ (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;
NSLog(@"ipv4 %@",name);
}
} 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;
NSLog(@"ipv6 %@",name);
}
}
if(type) {
NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];
addresses[key] = [NSString stringWithUTF8String:addrBuf];
}
}
}
// Free memory
freeifaddrs(interfaces);
}
return [addresses count] ? addresses : nil;
}
呼叫
- (void)viewDidLoad {
[super viewDidLoad];
//1:是ipv6
//0:不是ipv6
NSLog(@"###-###%d",[ViewController isIpv6]); ;
if ([ViewController isIpv6] == YES) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"是ipv6" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];
[alertView show];
}else{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"不是ipv6" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];
[alertView show];
}
}
程式碼已上傳
http://download.csdn.net/detail/qq_15509071/9743137