#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#define SERVER_PORT 5432
#define MAX_PENDING 5
#define MAX_LINE    256

int
main()
{
    struct sockaddr_in sin;
    char buf[MAX_LINE];
    int len;
    int serverSocket, clientSocket;

    /* build address data structure */
    bzero((char *)&sin, sizeof(sin));
    sin.sin_family = AF_INET;
    sin.sin_addr.s_addr = INADDR_ANY;
    sin.sin_port = htons(SERVER_PORT);

    /* setup passive open */
    if ((serverSocket = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
	perror("server: socket");
	exit(1);
    }

    if ((bind(serverSocket, (struct sockaddr *)&sin, sizeof(sin))) < 0) {
	perror("server: bind");
	exit(1);
    }
    listen(serverSocket, MAX_PENDING);

    /* wait for connection, then receive and print text */
    while (1) {
	if ((clientSocket = accept(serverSocket,
				   (struct sockaddr *)&sin, &len)) < 0) {
	    perror("server: accept");
	    exit(1);
	}
	while (len = recv(clientSocket, buf, sizeof(buf), 0)) {
	    fputs(buf, stdout);
	}
	close(clientSocket);
    }
}