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- #include <syscall.h>
- #include <sys/time.h>
- #include <errno.h>
- #include <limits.h>
- #include <linux/timex.h>
-
- inline static
- _syscall1(int, adjtimex, struct timex *, ntx);
-
- #define MAX_SEC (LONG_MAX / 1000000L - 2)
- #define MIN_SEC (LONG_MIN / 1000000L + 2)
-
- int
- __adjtime(struct timeval * itv, struct timeval * otv)
- {
- struct timex tntx;
-
- if (itv)
- {
- struct timeval tmp;
-
- /* We will do some check here. */
- tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L;
- tmp.tv_usec = itv->tv_usec % 1000000L;
- if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC)
- {
- errno = EINVAL;
- return -1;
- }
- tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L;
- tntx.mode = ADJ_OFFSET_SINGLESHOT;
- }
- else
- {
- tntx.mode = 0;
- }
- if (adjtimex(&tntx) < 0) return -1;
- if (otv)
- if (tntx.offset < 0)
- {
- otv->tv_usec = -(-tntx.offset % 1000000);
- otv->tv_sec = -(-tntx.offset / 1000000);
- }
- else
- {
- otv->tv_usec = tntx.offset % 1000000;
- otv->tv_sec = tntx.offset / 1000000;
- }
- return 0;
- }
-
- #include <gnu-stabs.h>
- #ifdef weak_alias
- weak_alias (__adjtime, adjtime);
- #endif
-