SKHandleInvalidReceiptRequest & SKTerminateForInvalidReceipt

StoreKit.h

@import StoreKit;

@interface SKHandleInvalidReceiptRequest : SKRequest

- (void)_sendXPCMessage;

@end

extern void SKTerminateForInvalidReceipt(void);

StoreKit.m

#import "StoreKit.h"

@interface SKRequest ()

- (void)_startWithMessage:(xpc_object_t)message replyBlock:(dispatch_block_t)replyBlock;
- (void)_shutdownRequest;

@end

@implementation SKHandleInvalidReceiptRequest

- (void)_sendXPCMessage
{
	xpc_object_t message = xpc_dictionary_create(NULL, NULL, 0);
	xpc_dictionary_set_int64(message, "0", 0x271c);

	dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);

	[self _startWithMessage:message replyBlock:^{
		dispatch_semaphore_signal(semaphore);
	}];

	dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
	dispatch_release(semaphore);
	xpc_release(dict);

	[self _shutdownRequest];
}

@end

void SKTerminateForInvalidReceipt(void) {
	SKHandleInvalidReceiptRequest *request = [[SKHandleInvalidReceiptRequest alloc] init];
	[request start];
	[request release];
}