iphone设备mac地址及IP地址的获取

mac地址获取：(iOS7已废用)

#import <sys/sysctl.h>
#import <net/if.h>
#import <net/if_dl.h>

+ (NSString *)getMacAddress
{
    int                 mgmtInfoBase[6];
    char                *msgBuffer = NULL;
    size_t              length;
    unsigned char       macAddress[6];
    struct if_msghdr    *interfaceMsgStruct;
    struct sockaddr_dl  *socketStruct;
    NSString            *errorFlag = NULL;
    
    // Setup the management Information Base (mib)
    mgmtInfoBase[0] = CTL_NET;        // Request network subsystem
    mgmtInfoBase[1] = AF_ROUTE;       // Routing table info
    mgmtInfoBase[2] = 0;
    mgmtInfoBase[3] = AF_LINK;        // Request link layer information
    mgmtInfoBase[4] = NET_RT_IFLIST;  // Request all configured interfaces
    
    // With all configured interfaces requested, get handle index
    if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
        errorFlag = @"if_nametoindex failure";
    else
    {
        // Get the size of the data available (store in len)
        if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
            errorFlag = @"sysctl mgmtInfoBase failure";
        else
        {
            // Alloc memory based on above call
            if ((msgBuffer = malloc(length)) == NULL)
                errorFlag = @"buffer allocation failure";
            else
            {
                // Get system information, store in buffer
                if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
                    errorFlag = @"sysctl msgBuffer failure";
            }
        }
    }
    // Befor going any further...
    if (errorFlag != NULL)
    {
        NSLog(@"Error: %@", errorFlag);
        return errorFlag;
    }
    
    // Map msgbuffer to interface message structure
    interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
    
    // Map to link-level socket structure
    socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
    
    // Copy link layer address data in socket structure to an array
    memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
    
    // Read from char array into a string object, into traditional Mac address format
    NSString *macAddressString = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x",
                                  macAddress[0], macAddress[1], macAddress[2],
                                  macAddress[3], macAddress[4], macAddress[5]];
    NSLog(@"Mac Address: %@", macAddressString);
    
    // Release the buffer memory
    free(msgBuffer);
    
    return macAddressString;
}

IP地址获取：

#include <ifaddrs.h>
#include <arpa/inet.h>

+ (NSString *)getIPAddress
{
    NSString *address = @"error";
    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"])
                {
                    // Get NSString from C String
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            }
            temp_addr = temp_addr->ifa_next;
        }
    }
    // Free memory
    freeifaddrs(interfaces);
    return address;
}