Getting Mac Serial Number and Hardware UUID

getMacSerialNumberAndHaredwareUUID

//
//  main.m
//
//  Copyright (c) 2014 Satoshi Muraki
//
//  MIT License
//

#import <Foundation/Foundation.h>
#import <IOKit/IOKitLib.h>

NSString *getPlatformAttributeForKey(CFStringRef key)
{
    io_service_t service;

    service = IOServiceGetMatchingService(
            kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice"));
    if (!service)
    {
        NSLog(@"error: couldn't get service\n");
        return nil;
    }

    NSString *result;

    result = (__bridge_transfer NSString *)IORegistryEntryCreateCFProperty(
                                         service, key, kCFAllocatorDefault, 0);
    IOObjectRelease(service);

    return result;
}

NSString *getMacSerialNumber(void)
{
    return getPlatformAttributeForKey(CFSTR(kIOPlatformSerialNumberKey));
}

NSString *getMacHardwareUUID(void)
{
    return getPlatformAttributeForKey(CFSTR(kIOPlatformUUIDKey));
}

int main(int argc, char *argv[])
{
    @autoreleasepool
    {
        NSString *string;

        string = getMacSerialNumber();
        if (string != nil)
        {
            NSLog(@"serial number: %@\n", string);
        }
        else
        {
            NSLog(@"error: couldn't get serial number.\n");
        }

        string = getMacHardwareUUID();
        if (string != nil)
        {
            NSLog(@"hardware UUID: %@\n", string);
        }
        else
        {
            NSLog(@"error: couldn't get hardwared UUID.\n");
        }
    }
    return 0;
}