h_sendto_srv.c

来自「T－kernel Tcp/ip Protocol Stack Sample」· C语言 代码 · 共 91 行

/*
 *  Copyright (C) 1999-2006 MITSUBISHI ELECTRIC CORPORATION and
 *  RENESAS SOLUTIONS CORPORATION and
 *  RENESAS TECHNOLOGY CORPORATION
 *  All rights reserved.
 *
 *  TCP/IP Test Application program [API].
 */

#include <stdio.h>
#include <signal.h>
#include <ctype.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netdb.h>

#include "config.h"

extern int errno;

int sd;

void sig_hdr()
{
	/* printf("received SIGINT.\n"); */
	if (close(sd) < 0) {
		printf("close is NG.\n");
		exit(1);
	}
	printf("close is OK.\n");
	exit(0);
}

/*
 * UDP server program
 */
main(argc, argv)
int	argc;
char **argv;
{
	int i, len;
	struct sockaddr_in sinme, sindst;
	int tcpopt;
	char buf[2048];
	int addrlen;
	
signal(SIGINT, sig_hdr);

printf("for TEST-7\n");
	errno = 0;

	/* create an endpoint for UDP communication */
	if ((sd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
		printf("socket is NG.(errno=%d)\n", errno);
		exit(1);
	}
	printf("socket is OK.\n");
	
	memset((char *)&sinme, 0, sizeof(struct sockaddr_in));
	sinme.sin_family = AF_INET;
	sinme.sin_addr.s_addr = inet_addr(SUN_ADDR);
	sinme.sin_port = htons(SUN_PORT);
	if (bind(sd, (struct sockaddr *)&sinme, sizeof(sinme)) < 0) {
		printf("bind is NG.(errno=%d)\n", errno);
		close(sd);
		exit(1);
	}
	printf("bind is OK.\n");

	addrlen = sizeof(sindst);
	while ((len = recvfrom(sd, buf, sizeof(buf), 0, 
		(struct sockaddr *)&sindst, &addrlen)) > 0) {
			printf("recvfrom is OK.(size=%d)\n", len);
	}
	if (len < 0) {
		printf("recvfrom is NG.(errno=%d)\n", errno);
	}

	if (close(sd) < 0) {
		printf("close is NG.(errno=%d)\n", errno);
	}
	printf("close is OK.\n\n");
	sleep(2);
	exit(0);
}

/* EOF */