67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
|
/******************************************************************************
|
||
|
|
* File: WhatsTheTimeMr.c
|
||
|
|
* Original Autor: M. Thaler (Modul BSY)
|
||
|
|
* Aufgabe: Ask MrTimeDaemon for the time
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
// system includes
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/un.h>
|
||
|
|
#include <netdb.h>
|
||
|
|
#include <arpa/inet.h> // required by inet_aton
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
// local includes
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
#include "TimeDaemon.h"
|
||
|
|
#include "TimeDaemonDefs.h"
|
||
|
|
#include "IPsockCom.h"
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
// Function: main()
|
||
|
|
// Parameter: hostname or IP address in dot format
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
int main(int argc, char *argv[]) {
|
||
|
|
|
||
|
|
char buffer[COM_BUF_SIZE];
|
||
|
|
char hostname[64];
|
||
|
|
TimeDataPtr tDataPtr;
|
||
|
|
int j;
|
||
|
|
|
||
|
|
if (argc < 2) {
|
||
|
|
printf("*** no hostname or IP-address -> using localhost ***\n");
|
||
|
|
strcpy(hostname, "localhost");
|
||
|
|
} else {
|
||
|
|
strcpy(hostname, argv[1]);
|
||
|
|
}
|
||
|
|
|
||
|
|
strcpy(buffer,REQUEST_STRING);
|
||
|
|
j = getTimeFromServer(hostname, TIME_PORT, buffer, sizeof(buffer));
|
||
|
|
if (j < 0)
|
||
|
|
printf("no response from %s\n", argv[1]);
|
||
|
|
else {
|
||
|
|
tDataPtr = (TimeDataPtr)(buffer);
|
||
|
|
printf("\nIt's ");
|
||
|
|
printf("%02d:%02d:%02d",
|
||
|
|
tDataPtr->hours, tDataPtr->minutes,tDataPtr->seconds);
|
||
|
|
printf(" the %d.%d.%d on \"%s\"\n\n",
|
||
|
|
tDataPtr->day, tDataPtr->month,
|
||
|
|
tDataPtr->year, tDataPtr->servername);
|
||
|
|
}
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
|