#include <stdio.h>
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <unistd.h>
#include <netinet/sctp.h>
#include <sys/uio.h>

main()
{
	struct  sockaddr_in cad;
	int alen;
	int sd2;
	char buf[1000];   
	struct sockaddr_in addr;

	memset((char *)&addr, 0, sizeof(addr)); /* clear sockaddr structure */
	addr.sin_family = PF_INET;
	
	addr.sin_addr.s_addr = INADDR_ANY;
	addr.sin_port = htons(6654);
	int sd = socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP); 
	if(bind(sd, (struct sockaddr *)&addr,sizeof(addr) )==-1){
		printf("bind_error\n");exit(1);
	}
	else printf("binded\n");
	   
	if (listen(sd, 1)==-1) {
		printf("listen");
		exit(1);
	} 
	else printf("listening...\n");


	for (;;) { 
		alen = sizeof(cad);
		if ( ( sd2 = accept(sd, (struct sockaddr *)&cad, &alen)) < 0) {
			fprintf(stderr, "Accept failed\n");
			exit(1);
		}
		recv(sd2,buf,sizeof(buf),0);
		printf("\nData received from guest ");

	}
}