wifi,网关相关标识的获取

获取WIFI的相关信息

 
 
 
  
(void)getWifiInfo
 {
 NSArray *ifs = (__bridge_transfer NSArray *)CNCopySupportedInterfaces();
 if (!ifs) {
 return ;
 }
 NSDictionary *info = nil;
 for (NSString *ifnam in ifs) {
 info = (__bridge_transfer NSDictionary *)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
 if (info && [info count]) {
 break;
 }
 }
 NSLog(@"WIFI名称 %@ MAC地址 %@",info[@"SSID"],info[@"BSSID"]);
 }
 

获取WIFI网关以及子网掩码，端口等信息

 
 
 
  
(NSMutableDictionary *)getLocalInfoForCurrentWiFi {
 NSMutableDictionary *dict = [NSMutableDictionary dictionary];
 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"]) {
 //----192.168.1.255 广播地址
 NSString *broadcast = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_dstaddr)->sin_addr)];
 if (broadcast) {
 [dict setObject:broadcast forKey:@"broadcast"];
 }
 NSLog(@"broadcast address--%@",broadcast);
 //--192.168.1.106 本机地址
 NSString *localIp = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
 if (localIp) {
 [dict setObject:localIp forKey:@"localIp"];
 }
 NSLog(@"local device ip--%@",localIp);
 //--255.255.255.0 子网掩码地址
 NSString *netmask = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_netmask)->sin_addr)];
 if (netmask) {
 [dict setObject:netmask forKey:@"netmask"];
 }
 NSLog(@"netmask--%@",netmask);
 //--en0 端口地址
 NSString *interface = [NSString stringWithUTF8String:temp_addr->ifa_name];
 if (interface) {
 [dict setObject:interface forKey:@"interface"];
 }
 NSLog(@"interface--%@",interface);
 return dict;
 }
 }
 temp_addr = temp_addr->ifa_next;
 }
 }
 // Free memory
 freeifaddrs(interfaces);
 return dict;
 }