#include <sys/ioctl.h>
#include <linux/fs.h>
#include <errno.h>

int fideduperange_errno_value = 0;

int fideduperange( int src_fd, struct file_dedupe_range *arg) {
	fideduperange_errno_value = 0;
	int r = ioctl( src_fd, FIDEDUPERANGE, arg);
	fideduperange_errno_value = errno;
	return r;
}

int fideduperange_errno() {
	return fideduperange_errno_value;
}

void fideduperange_consts( int config[3]) {
	config[0] = FIDEDUPERANGE;
	config[1] = FILE_DEDUPE_RANGE_SAME;
	config[2] = FILE_DEDUPE_RANGE_DIFFERS;
}