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/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* sendfile for NOLIBC
* Copyright (C) 2026 Daniel Palmer <daniel@thingy.jp>
*/
/* make sure to include all global symbols */
#include "../nolibc.h"
#ifndef _NOLIBC_SYS_SENDFILE_H
#define _NOLIBC_SYS_SENDFILE_H
#include "../sys.h"
#include <linux/unistd.h>
/*
* ssize_t sendfile(int out_fd, int in_fd, off_t *offset, size_t count);
*/
static __attribute__((unused))
ssize_t _sys_sendfile(int out_fd, int in_fd, off_t *offset, size_t count)
{
__nolibc_static_assert(sizeof(*offset) == sizeof(__kernel_loff_t));
#ifdef __NR_sendfile64
/* 32-bit applications use sendfile64 so offset is treated as a __kernel_loff_t */
return __nolibc_syscall4(__NR_sendfile64, out_fd, in_fd, offset, count);
#else
__nolibc_static_assert(sizeof(*offset) == sizeof(__kernel_off_t));
return __nolibc_syscall4(__NR_sendfile, out_fd, in_fd, offset, count);
#endif
}
static __attribute__((unused))
ssize_t sendfile(int out_fd, int in_fd, off_t *offset, size_t count)
{
return __sysret(_sys_sendfile(out_fd, in_fd, offset, count));
}
#endif /* _NOLIBC_SYS_SENDFILE_H */
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