utils-std

copy_file_range.c (489B)

// utils-std: Collection of commonly available Unix tools
// SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
// SPDX-License-Identifier: MPL-2.0
// For copy_file_range
#define _GNU_SOURCE     // musl, glibc
#define _DEFAULT_SOURCE // FreeBSD
#include <stdint.h> // SIZE_MAX
#include <sys/types.h>
#include <unistd.h>
ssize_t
test(int in, int out)
{
	off_t in_pos = 0, out_pos = 0;
	return copy_file_range(in, &in_pos, out, &out_pos, SIZE_MAX, 0);
}