Question

I’m creating a client-server application. I want to do some logging.

Server is in C. Now I’m print messages to the terminal. So I’ll probably just copy that to sprintf and add timestamp.
How can I do that timestamp?
It should probably include date, hours, minutes, seconds.

Answer 1

#include <time.h>
void timestamp()
{
    time_t ltime; /* calendar time */
    ltime=time(NULL); /* get current cal time */
    printf("%s",asctime( localtime(&ltime) ) );
}

On my PC, it just prints

Wed Mar 07 12:27:29 2012

Check out the whole range of time related functions here
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/time.h.html