*
* Usage: daytimed -h give all info
*
- * $Id: UDP_daytimed.c,v 1.1 2004/03/21 18:30:35 piccardi Exp $
- *
****************************************************************/
/*
* Include needed headers
*/
-#include <sys/types.h> /* predefined types */
-#include <unistd.h> /* include unix standard library */
-#include <arpa/inet.h> /* IP addresses conversion utiliites */
-#include <sys/socket.h> /* socket library */
-#include <stdio.h> /* include standard I/O library */
-#include <time.h>
+#include <sys/types.h> /* primitive system data types */
+#include <unistd.h> /* unix standard library */
+#include <arpa/inet.h> /* IP addresses conversion utilities */
+#include <sys/socket.h> /* socket constants, types and functions */
+#include <stdio.h> /* standard I/O library */
+#include <time.h> /* date and time constants, types and functions */
+#include <string.h> /* C strings library */
+#include <stdlib.h> /* C standard library */
#define MAXLINE 80
/* Program begin */
}
/* write daytime to client */
while (1) {
- timeval = time(NULL);
n = recvfrom(sock, buffer, MAXLINE, 0, (struct sockaddr *)&addr, &len);
if (n < 0) {
perror("recvfrom error");
printf("Request from host %s, port %d\n", buffer,
ntohs(addr.sin_port));
}
+ timeval = time(NULL);
snprintf(buffer, sizeof(buffer), "%.24s\r\n", ctime(&timeval));
n = sendto(sock, buffer, strlen(buffer), 0,
(struct sockaddr *)&addr, sizeof(addr));