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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 <unistd.h>
#include <netinet/ip.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
int main(void)
{
int sockfd, ret;
struct sockaddr_in addr;
struct msghdr msg_hdr;
struct iovec vec[1];
(void)memset(&addr, 0, sizeof(addr));
(void)memset(&msg_hdr, 0, sizeof(msg_hdr));
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
if (sockfd < 0)
return 1;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr.sin_port = htons(9999);
if (connect(sockfd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
(void)close(sockfd);
return 1;
}
vec[0].iov_base = "test";
vec[0].iov_len = 4;
msg_hdr.msg_iov = vec;
msg_hdr.msg_iovlen = 1;
ret = sendmsg(sockfd, &msg_hdr, 0);
(void)close(sockfd);
return ret;
}
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