t_tcp_srv1.c

来自「T－kernel Tcp/ip Protocol Stack Sample」· C语言 代码 · 共 90 行

/*
 *  Copyright (C) 1999-2006 MITSUBISHI ELECTRIC CORPORATION and
 *  RENESAS SOLUTIONS CORPORATION and
 *  RENESAS TECHNOLOGY CORPORATION
 *  All rights reserved.
 *
 *  BSD socket communication test program used for TCP/IP subsystem.
 */

#include <tk/tkernel.h>

#include <renesas_tcpip.h>
#include <renesas_tcpip_common.h>
#include "config.h"


/* TCP server test (unix_accept/unix_recv/unix_send) */
void
test_task(int stacd, void *exinf)
{        
	int i, j, sd, newsd, len;
	char ch, buf[SIZE], buf2[SIZE];
	struct sockaddr_in sinme, sindst;
	int addrlen;

	if ((sd = unix_socket(AF_INET, SOCK_STREAM, 0)) < 0) {
		goto out;
	}
	memset((char *)&sinme, 0, sizeof(struct sockaddr_in));
	sinme.sin_family = AF_INET;
	sinme.sin_addr.s_addr = inet_addr(IFRA_ADDR);
	sinme.sin_port = htons(LOCALPORT);
	if (unix_bind(sd, (struct sockaddr *)&sinme, sizeof(sinme)) < 0) {
		unix_close(sd);
		goto out;
	}
	unix_listen(sd, 5);

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

	for (j=1; j >= 1; j++) {
		memset((char *)&sindst, 0, sizeof(struct sockaddr_in));
		addrlen = sizeof(sindst);
		newsd = unix_accept(sd, (struct sockaddr *)&sindst, &addrlen);
		if (newsd < 0) {
			unix_close(sd);
			break;
		}
		memset(buf2, 0, sizeof(buf2));

		if ((len = unix_recv(newsd, buf2, sizeof(buf2), 0)) < 0) {
			unix_close(newsd);
			break;
		}
		/* check data contents */
		for (i=0; i < len; i++) {
			if (buf2[i] != buf[i]) {
				break;
			}
		}
		if (i < len) {
			unix_close(newsd);
			break;
		}
		/* echo back */
		if ((len = unix_send(newsd, buf, len, 0)) < 0) {
			unix_close(newsd);
			break;
		}
		if (unix_shutdown(newsd, 0) < 0) {
			unix_close(newsd);
			break;
		}
		if (unix_close(newsd) < 0) {
			break;
		}
	}
out:
#if defined(T_KERNEL)
	tk_slp_tsk(TMO_FEVR);
#endif
}

/* EOF */