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/*
* Copyright (C) 2025-2026 Colin Ian King
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/uio.h>
#include <unistd.h>
#define IO_LEN (64)
int main(void)
{
struct iovec iov[1];
char data[IO_LEN] = "hello world\n";
int fd, rc;
fd = open("/dev/null", O_WRONLY);
if (fd < 0)
return -1;
iov[0].iov_base = data;
iov[0].iov_len = (size_t)sizeof(data);
rc = writev(fd, iov, 1);
(void)close(fd);
return rc;
}
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