--- /dev/null
+//
+// Copyright 2015 - 2016 Apple. All rights reserved.
+//
+
+/*
+ * This is to fool os services to not provide the Keychain manager
+ * interface tht doens't work since we don't have unified headers
+ * between iOS and OS X. rdar://23405418/
+ */
+#define __KEYCHAINCORE__ 1
+
+#include <Foundation/Foundation.h>
+#include <Security/Security.h>
+
+#include <TargetConditionals.h>
+
+#include <Security/SecItemPriv.h>
+#include <sys/stat.h>
+#include <err.h>
+
+#if TARGET_OS_SIMULATOR
+int
+main(void)
+{
+ return 0;
+}
+#else
+
+#include <libaks.h>
+
+static NSData *
+BagMe(void)
+{
+ keybag_handle_t handle;
+ kern_return_t result;
+ void *data = NULL;
+ int length;
+
+ result = aks_create_bag("foo", 3, kAppleKeyStoreAsymmetricBackupBag, &handle);
+ if (result)
+ errx(1, "aks_create_bag: %08x", result);
+
+ result = aks_save_bag(handle, &data, &length);
+ if (result)
+ errx(1, "aks_save_bag");
+
+ return [NSData dataWithBytes:data length:length];
+}
+
+int main (int argc, const char * argv[])
+{
+ @autoreleasepool {
+ NSData *bag = NULL, *password = NULL;
+ CFErrorRef error = NULL;
+
+ bag = BagMe();
+ password = [NSData dataWithBytes:"foo" length:3];
+
+ NSData *backup = CFBridgingRelease(_SecKeychainCopyBackup((__bridge CFDataRef)bag, (__bridge CFDataRef)password));
+ if (backup == NULL) {
+ errx(1, "backup failed");
+ }
+
+ char path[] = "/tmp/secbackuptestXXXXXXX";
+ int fd = mkstemp(path);
+
+ bool status = _SecKeychainWriteBackupToFileDescriptor((__bridge CFDataRef)bag, (__bridge CFDataRef)password, fd, &error);
+ if (!status) {
+ NSLog(@"backup failed: %@", error);
+ errx(1, "failed backup 2");
+ }
+
+ struct stat sb;
+ fstat(fd, &sb);
+
+ if (sb.st_size != (off_t)[backup length])
+ warn("backup different ");
+
+ if (abs((int)(sb.st_size - (off_t)[backup length])) > 1000)
+ errx(1, "backup different enough to fail");
+
+
+ status = _SecKeychainRestoreBackupFromFileDescriptor(fd, (__bridge CFDataRef)bag, (__bridge CFDataRef)password, &error);
+ if (!status) {
+ NSLog(@"restore failed: %@", error);
+ errx(1, "restore failed");
+ }
+
+ close(fd);
+ unlink(path);
+
+ NSData *backup2 = CFBridgingRelease(_SecKeychainCopyBackup((__bridge CFDataRef)bag, (__bridge CFDataRef)password));
+ if (backup2 == NULL) {
+ errx(1, "backup 3 failed");
+ }
+
+ if (abs((int)(sb.st_size - (off_t)[backup2 length])) > 1000)
+ errx(1, "backup different enough to fail (mem vs backup2): %d vs %d", (int)sb.st_size, (int)[backup2 length]);
+ if (abs((int)([backup length] - [backup2 length])) > 1000)
+ errx(1, "backup different enough to fail (backup1 vs backup2: %d vs %d", (int)[backup length], (int)[backup2 length]);
+
+ return 0;
+ }
+}
+
+#endif /* TARGET_OS_SIMULATOR */
+