#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>

#define SOCK_PATH	"/tmp/echo_socket"
#define BUF_SIZE	1024

int main(void)
{
	int i = 0;
	int s, t, len;
	struct sockaddr_un remote;
	char str[BUF_SIZE];

	if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
		perror("socket");
		exit(1);
	}

	printf("Trying to connect...\n");

	remote.sun_family = AF_UNIX;
	strcpy(remote.sun_path, SOCK_PATH);
	len = strlen(remote.sun_path) + sizeof(remote.sun_family);
	if (connect(s, (struct sockaddr *)&remote, len) == -1) {
		perror("connect");
		exit(1);
	}

	printf("Connected.\n");

#if 1
	while(1)  {
		sprintf(str, "%d\n", i);
		if (send(s, str, strlen(str), 0) == -1) {
			perror("send");
			exit(1);
		}

		if ((t=recv(s, str, BUF_SIZE, 0)) > 0) {
			str[t] = '\0';
			printf("echo> %s", str);
		} else {
			if (t < 0) perror("recv");
			else printf("Server closed connection\n");
			//exit(1);
		}
		sleep(10);
		i++;
	}
#endif

	close(s);

	return 0;
}