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[/] [or1k/] [trunk/] [uclinux/] [uC-libc/] [sysdeps/] [adjtime.c] - Rev 1775
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#include <syscall.h> #include <sys/time.h> #include <errno.h> #include <limits.h> #include <linux/timex.h> #ifdef __SVR4_I386_ABI_L1__ #define adjtimex __adjtimex #else inline static _syscall1(int, adjtimex, struct timex *, ntx); #endif #define MAX_SEC (LONG_MAX / 1000000L - 2) #define MIN_SEC (LONG_MIN / 1000000L + 2) #ifndef MOD_OFFSET #define modes mode #endif 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.modes = ADJ_OFFSET_SINGLESHOT; } else { tntx.modes = 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; }
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