dist/ntp/libntp/buftvtots.c

   1 /*      $NetBSD: buftvtots.c,v 1.2 2003/12/04 16:23:36 drochner Exp $   */
   2
   3 /*
   4  * buftvtots - pull a Unix-format (struct timeval) time stamp out of
   5  *             an octet stream and convert it to a l_fp time stamp.
   6  *             This is useful when using the clock line discipline.
   7  */
   8
   9 #ifdef HAVE_CONFIG_H
  10 #include "config.h"
  11 #endif
  12 #include "ntp_fp.h"
  13 #include "ntp_string.h"
  14 #include "ntp_unixtime.h"
  15
  16 int
  17 buftvtots(
  18         const char *bufp,
  19         l_fp *ts
  20         )
  21 {
  22         struct timeval tv;
  23
  24         /*
  25          * copy to adhere to alignment restrictions
  26          */
  27         memcpy(&tv, bufp, sizeof(tv));
  28
  29         /*
  30          * and use it
  31          */
  32         ts->l_ui = tv.tv_sec + (u_long)JAN_1970;
  33         if (tv.tv_usec > 999999)
  34             return 0;
  35         TVUTOTSF(tv.tv_usec, ts->l_uf);
  36         return 1;
  37 }