需要导入的头文件
#import <ifaddrs.h>
#import <arpa/inet.h>
#define IOS_CELLULAR @"pdp_ip0"
#define IOS_WIFI @"en0"
#define IOS_VPN @"utun0"
#define IP_ADDR_IPv4 @"ipv4"
#define IP_ADDR_IPv6 @"ipv6"
#pragma mark -- 获取外网IP地址
+ (NSString*)getWANAddresses {
NSError*error;
NSURL *ipURL = [NSURL URLWithString:@"http://pv.sohu.com/cityjson?ie=utf-8"];
NSMutableString *ip = [NSMutableString stringWithContentsOfURL:ipURL encoding:NSUTF8StringEncoding error:&error];
//判断返回字符串是否为所需数据
if ([ip hasPrefix:@"var returnCitySN = "]) {
//对字符串进行处理，然后进行json解析
//删除字符串多余字符串
NSRangerange =NSMakeRange(0,19);
[ipdeleteCharactersInRange:range];
NSString * nowIp =[ip substringToIndex:ip.length-1];
//将字符串转换成二进制进行Json解析
NSData * data = [nowIp dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary * dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
return dict[@"cip"] ? dict[@"cip"] :@"";
}
return @"";
}
#pragma mark -- 获取内网IP地址
+ (NSString*)getIPAddresses {
NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];
// retrieve the current interfaces - returns 0 on success
structifaddrs*interfaces;
if(!getifaddrs(&interfaces)) {
// Loop through linked list of interfaces
structifaddrs*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
}
conststructsockaddr_in*addr = (conststructsockaddr_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{
conststructsockaddr_in6*addr6 = (conststructsockaddr_in6*)interface->ifa_addr;
if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf,INET6_ADDRSTRLEN)) {
type =IP_ADDR_IPv6;
}
}
if(type) {
NSString*key = [NSStringstringWithFormat:@"%@/%@", name, type];
addresses[key] = [NSStringstringWithUTF8String:addrBuf];
}
}
}
// Free memory
freeifaddrs(interfaces);
}
if([addressescount]) {
//en0/ipv4:WIFI
//pdp_ip0/ipv4:WWAN(4G)
returnhasLen(addresses[@"en0/ipv4"]) ? addresses[@"en0/ipv4"] : addresses[@"pdp_ip0/ipv4"];
}else{
returnnil;
}
}
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