h_tcp_clt1.c

T－kernel Tcp/ip Protocol Stack Sample

/*
 *  Copyright (C) 1999-2006 MITSUBISHI ELECTRIC CORPORATION and
 *  RENESAS SOLUTIONS CORPORATION and
 *  RENESAS TECHNOLOGY CORPORATION
 *  All rights reserved.
 *
 *  Test program for send() and recv() on LAN.
 */

#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"); */
	shutdown(sd, SHUT_RDWR);
	if (close(sd) < 0) {
		printf("close is NG.\n");
		exit(1);
	}
	printf("close is OK.\n");
	exit(0);
}

/*
 * TCP client program
 */
main(argc, argv)
int	argc;
char **argv;
{
	int i, j, sd, loop, len;
	char ch, buf[SIZE], buf2[SIZE];
	struct sockaddr_in	sinme, sindst;
	
	if (argc > 1) {
		loop = atoi(argv[1]);
	}
	else {
		loop = 10;
	}
	printf("loop=%d\n", loop);
	
signal(SIGINT, sig_hdr);

	ch = 'A' - 0x01;
	for (i=0; i < sizeof(buf); i++) {
		if (ch < 'z') ch += 0x01;
		else ch = 'A';
		buf[i] = ch;
	}

	memset((char *)&sindst, 0, sizeof(struct sockaddr_in));
	sindst.sin_family = AF_INET;
	sindst.sin_addr.s_addr = inet_addr(DST_ADDR);
	sindst.sin_port = htons(PORT_NUM);

	for (j=1; j <= loop; j++) {
		/* create an endpoint for TCP communication */
		if ((sd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
			printf("(%d)socket is NG.(errno=%d)\n", j, errno);
			break;
		}
		printf("(%d)socket is OK.\n", j);
	
		/* initiate a connection on the socket */
		if (connect(sd, (struct sockaddr *)&sindst, sizeof(struct sockaddr_in)) < 0) {
			printf("(%d)connect is NG.(errno=%d)\n", j, errno);
			close(sd);
			break;
		}
		printf("(%d)connect is OK.\n", j);
	
		/* send data */
		if ((len = send(sd, buf, SIZE, 0)) < 0) {
			printf("(%d)sending TCP data is NG.\n", j);
			close(sd);
			break;
		}
		printf("(%d)sending TCP data is OK.(size=%d)\n", j, len);

		/* clear data contents */
		memset(buf2, 0, SIZE);

		/* receive data */
		if ((len = recv(sd, buf2, SIZE, 0)) < 0) {
			printf("(%d)receiving TCP data is NG.(errno=%d)\n", j, errno);
			close(sd);
			break;
		}
		printf("(%d)receiving TCP data is OK.(size=%d)\n", j, len);

		/* check data contesnts */
		for (i=0; i < len; i++) {
			if (buf2[i] != buf[i]) {
				break;
			}
		}
		if (i < len) {
			printf("(%d)checking TCP data contents is NG.\n", j);
			close(sd);
			break;
		}
		printf("(%d)checking TCP data contents is OK.\n", j);

		/* shut down sending data */
		if (shutdown(sd, SHUT_RDWR) < 0) {
			printf("(%d)shutdown is NG.(errno=%d)\n", j, errno);
			close(sd);
			break;
		}
		printf("(%d)shutdown is OK.\n", j);

		if (close(sd) < 0) {
			printf("(%d)close is NG.(errno=%d)\n", j, errno);
			break;
		}
		printf("(%d)close is OK.\n\n", j);
		sleep(1);
	}

	/* create an endpoint for TCP communication */
	if ((sd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
		printf("socket2 is NG.\n");
		return (1);
	}
	printf("socket2 is OK.\n");
	
	/* initiate a connection on the socket */
	if (connect(sd, (struct sockaddr *)&sindst, sizeof(struct sockaddr_in)) < 0) {
		printf("connect2 is NG.(errno=%d)\n", errno);
		close(sd);
		return (1);
	}
	printf("connect2 is OK.\n");
	
	/* send zero byte data to terminate server */
	if (send(sd, buf, 0, 0) < 0) {
		printf("send2 is NG.\n");
		close(sd);
		return (1);
	}
	printf("send2 is OK.\n");

	/* shut down sending data */
	if (shutdown(sd, SHUT_RDWR) < 0) {
		printf("shutdown2 is NG.(errno=%d)\n", errno);
		return (1);
	}
	printf("shutdown2 is OK.\n");

	if (close(sd) < 0) {
		printf("close2 is NG.\n");
		return (1);
	}
	printf("close2 is OK.\n\n");

	printf("Pass.\n");
	sleep(2);

	return (0);
}

/* EOF */