stime(2)

stime -- set time

Synopsis

   #include <unistd.h>
   
   int stime(const time_t tp);

stime sets the system's idea of the time and date. tp points to the value of time as measured in seconds from 00:00:00 UTC January 1, 1970.

On success, stime returns 0. On failure, stime returns -1 and sets errno to identify the error.

In the following conditions, stime fails and sets errno to:

EPERM: The calling process does not have the appropriate privilege (P_SYSOPS).