Can't figure out how to copy a symbolic link, or a directory containing a symbolic link, that is originating on a different Network Volume (eg: in my case it's via AFP, or is it SMB2 these days..?)

copyfromnetworkvolume.m

// Note that on the command line cp -R /Volumes/mayur/bar.txt /Users/msp/Desktop/bar.txt
// works just fine; the symbolic link is copied, and it's not followed
// But I have *no idea* how to do this programatically as shown below
// (Note: My end goal is being able to copy an app from a volume to my local disk, but
// it fails when it encounters a symbolic link)
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
	NSURL *sourceURL = [NSURL fileURLWithPath:@"/Volumes/mayur/bar.txt"]; // this is a symbolic link
	NSURL *destinationURL = [NSURL fileURLWithPath:@"/Users/msp/Desktop/bar.txt"];
	
	// this outputs 1, so the source does exist
	NSLog(@"%d", [sourceURL checkResourceIsReachableAndReturnError:NULL]);
	
	// This code below fails and outputs:
	/*
	 Failed to copy item because: Error Domain=NSCocoaErrorDomain Code=512 "“bar.txt” couldn’t be copied to “Desktop”." UserInfo={NSSourceFilePathErrorKey=/Volumes/mayur/bar.txt, NSUserStringVariant=(
	 Copy
	 ), NSDestinationFilePath=/Users/msp/Desktop/bar.txt, NSFilePath=/Volumes/mayur/bar.txt, NSUnderlyingError=0x600000042730 {Error Domain=NSPOSIXErrorDomain Code=22 "Invalid argument"}}
	 */
	NSError *error = nil;
	if (![[NSFileManager defaultManager] copyItemAtURL:sourceURL toURL:destinationURL error:&error]) {
		NSLog(@"Failed to copy item because: %@", error);
	}
	
	// the code below doesn't work either; it outputs
	// Failed copying file with copyfile(3): 22 - Invalid argument
	
	/*
	if (copyfile(sourceURL.fileSystemRepresentation, destinationURL.fileSystemRepresentation, NULL, COPYFILE_STAT | COPYFILE_DATA | COPYFILE_NOFOLLOW) != 0) {
		NSLog(@"Failed copying file with copyfile(3): %d - %s", errno, strerror(errno));
	}
	 */
}

Looks like deprecated FSCopyObjectSync() works. Sigh.