stime - set time
#define _SVID_SOURCE /* glibc2 needs this */__
int stime(time_t *t);
stime sets the system's idea of the time and date.
Time, pointed to by t, is measured in seconds from
00:00:00 GMT January 1, 1970. stime() may only be
executed by the super user.
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
The caller is not the super-user.
SVr4, SVID, X/OPEN
Under glibc2, only provides a
prototype when _SVID_SOURCE is defined.