/contrib/ntp/libntp/calyearstart.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 22 lines · 15 code · 3 blank · 4 comment · 0 complexity · bb422c5b43e86d17625fa1562d04ee64 MD5 · raw file 

    

  1. /*
    2. 

  2.  * calyearstart - determine the NTP time at midnight of January 1 in
    3. 

  3.  *		  the year of the given date.
    4. 

  4.  */
    5. 

  5. #include <sys/types.h>
    6. 

  6. 

  7. #include "ntp_types.h"
    8. 

  8. #include "ntp_calendar.h"
    9. 

  9. #include "ntp_stdlib.h"
    10. 

  10. 

  11. u_long
    12. 

  12. calyearstart(u_long ntp_time)
    13. 

  13. {
    14. 

  14.     struct calendar jt;
    15. 

  15. 

  16.     caljulian(ntp_time,&jt);
    17. 

  17.     jt.yearday  = 1;
    18. 

  18.     jt.monthday = 1;
    19. 

  19.     jt.month    = 1;
    20. 

  20.     jt.hour = jt.minute = jt.second = 0;
    21. 

  21.     return caltontp(&jt);
    22. 

  22. }
    23.