A simple Daytime Server in C from TextBook example

gistfile1.c

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <time.h>

#define MAXLINE 1024


int main( int argc, char **argv){

	int listenfd;
	int connfd;
	socklen_t len;
	struct sockaddr_in servaddr, cliaddr;
	char buff[MAXLINE];
	time_t ticks;

	listenfd = socket(AF_INET, SOCK_STREAM, 0);
	
	bzero(&servaddr,sizeof(servaddr));
	servaddr.sin_family = AF_INET;
	servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
	servaddr.sin_port = htons(3490);

	bind(listenfd, (struct sockaddr *) &servaddr, sizeof(servaddr));

	listen(listenfd, 10);

	while(1){

		len = sizeof(cliaddr);
		connfd = accept(listenfd, (struct sockaddr *) &cliaddr, &len);
		printf("connection from %s, port %d\n",
		inet_ntop(AF_INET, &cliaddr.sin_addr, buff, sizeof(buff)),
		ntohs(cliaddr.sin_port));

		ticks = time(NULL);
		snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks));
		write(connfd, buff, strlen(buff));

		close(connfd);
	}
}