写在前面
最近做关于网络接口部分,有时候为了接口安全,需要在请求接口的时候,跟后服务端约好,每一个接口需要传递特定的签名数据,关于签名算法,服务端和移动端保持一致;当然这不是主要的,主要的是,如何获取设备的ip地址;废话不多说,直接上代码;
小tips:
Mac 终端获取电脑ip: ifconfig | grep "inet " | grep -v 127.0.0.1
主要参考:stackoverflow
1 http://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically/10803584#10803584
1 导入头文件 2 #include <ifaddrs.h> 3 #include <arpa/inet.h> 4 #include <net/if.h> 5 6 #define IOS_CELLULAR @"pdp_ip0" 7 #define IOS_WIFI @"en0" 8 #define IOS_VPN @"utun0" 9 #define IP_ADDR_IPv4 @"ipv4" 10 #define IP_ADDR_IPv6 @"ipv6" 11 12 13 14 #pragma mark - 获取ip地址 15 + (NSString *)getIPAddress:(BOOL)preferIPv4{ 16 NSArray *searchArray = preferIPv4 ? 17 @[ 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 ] : 18 @[ 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 ] ; 19 20 NSDictionary *addresses = [self getIPAddresses]; 21 22 // NSLog(@"addresses: %@", addresses); 23 24 __block NSString *address; 25 [searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop) 26 { 27 address = addresses[key]; 28 //筛选出IP地址格式 29 if([self isValidatIP:address]) *stop = YES; 30 } ]; 31 return address ? address : @"0.0.0.0"; 32 33 } 34 35 + (BOOL)isValidatIP:(NSString *)ipAddress { 36 if (ipAddress.length == 0) { 37 return NO; 38 } 39 NSString *urlRegEx = @"^([01]?\d\d?|2[0-4]\d|25[0-5])\." 40 "([01]?\d\d?|2[0-4]\d|25[0-5])\." 41 "([01]?\d\d?|2[0-4]\d|25[0-5])\." 42 "([01]?\d\d?|2[0-4]\d|25[0-5])$"; 43 44 NSError *error; 45 NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:urlRegEx options:0 error:&error]; 46 47 if (regex != nil) { 48 NSTextCheckingResult *firstMatch=[regex firstMatchInString:ipAddress options:0 range:NSMakeRange(0, [ipAddress length])]; 49 50 if (firstMatch) { 51 NSRange resultRange = [firstMatch rangeAtIndex:0]; 52 NSString *result=[ipAddress substringWithRange:resultRange]; 53 //输出结果 54 // NSLog(@"%@",result); 55 return YES; 56 } 57 } 58 return NO; 59 } 60 61 + (NSDictionary *)getIPAddresses 62 { 63 NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8]; 64 65 // retrieve the current interfaces - returns 0 on success 66 struct ifaddrs *interfaces; 67 if(!getifaddrs(&interfaces)) { 68 // Loop through linked list of interfaces 69 struct ifaddrs *interface; 70 for(interface=interfaces; interface; interface=interface->ifa_next) { 71 if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) { 72 continue; // deeply nested code harder to read 73 } 74 const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr; 75 char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ]; 76 if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) { 77 NSString *name = [NSString stringWithUTF8String:interface->ifa_name]; 78 NSString *type; 79 if(addr->sin_family == AF_INET) { 80 if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) { 81 type = IP_ADDR_IPv4; 82 } 83 } else { 84 const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr; 85 if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) { 86 type = IP_ADDR_IPv6; 87 } 88 } 89 if(type) { 90 NSString *key = [NSString stringWithFormat:@"%@/%@", name, type]; 91 addresses[key] = [NSString stringWithUTF8String:addrBuf]; 92 } 93 } 94 } 95 // Free memory 96 freeifaddrs(interfaces); 97 } 98 return [addresses count] ? addresses : nil; 99 }
亲测可用,万能的stackoverflow,非常感谢!