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  • iOS获取设备ip地址(OC版)

    #import <SystemConfiguration/CaptiveNetwork.h>
    
    
    #import <ifaddrs.h>
    #import <arpa/inet.h>
    #import <sys/sockio.h>
    #import <sys/ioctl.h>
    //
    #include <sys/socket.h> // Per msqr
    #include <sys/sysctl.h>
    #include <net/if.h>
    #include <net/if_dl.h>
    
    #define IOS_CELLULAR    @"pdp_ip0"
    #define IOS_WIFI        @"en0"
    //#define IOS_VPN       @"utun0"
    #define IP_ADDR_IPv4    @"ipv4"
    #define IP_ADDR_IPv6    @"ipv6"
    
    
    //获取ip地址
    //获取设备当前网络IP地址
    - (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";
    }
    
    //获取所有相关IP信息
    - (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;
    }
    

     内容来自:https://www.cnblogs.com/mnstar/p/6281886.html

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  • 原文地址:https://www.cnblogs.com/jianwind/p/9023220.html
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