Unique Identifier of a Mac?

Question

On an iPhone I can use

[[UIDevice currentDevice] uniqueIdentifier]; 

to get a string which identifies this device. Is there anything equal in OSX ? I didn't find anything. I just want to identify the Mac which started the application. Can you help me ?

Answer 1

Apple has a technote on uniquely identifying a mac. Here's a loosely modified version of the code Apple has posted in that technote... don't forget to link your project against IOKit.framework in order to build this:

#import <IOKit/IOKitLib.h>  - (NSString *)serialNumber {     io_service_t    platformExpert = IOServiceGetMatchingService(kIOMasterPortDefault,      IOServiceMatching("IOPlatformExpertDevice"));     CFStringRef serialNumberAsCFString = NULL;      if (platformExpert) {         serialNumberAsCFString = IORegistryEntryCreateCFProperty(platformExpert,                                                          CFSTR(kIOPlatformSerialNumberKey),                                                              kCFAllocatorDefault, 0);         IOObjectRelease(platformExpert);     }      NSString *serialNumberAsNSString = nil;     if (serialNumberAsCFString) {         serialNumberAsNSString = [NSString stringWithString:(NSString *)serialNumberAsCFString];         CFRelease(serialNumberAsCFString);     }      return serialNumberAsNSString; }