diff options
Diffstat (limited to 'networking/ntpd.c')
| -rw-r--r-- | networking/ntpd.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index 204e1d7..4365166 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -554,7 +554,7 @@ gettime1900d(void) static void d_to_tv(struct timeval *tv, double d) { - tv->tv_sec = (long)d; + tv->tv_sec = (time_t)d; tv->tv_usec = (d - tv->tv_sec) * 1000000; } @@ -565,6 +565,14 @@ lfp_to_d(l_fixedpt_t lfp) lfp.int_partl = ntohl(lfp.int_partl); lfp.fractionl = ntohl(lfp.fractionl); ret = (double)lfp.int_partl + ((double)lfp.fractionl / UINT_MAX); + /* + * Shift timestamps before 1970 to the second NTP era (2036-2106): + * int_partl value of OFFSET_1900_1970 (2208988800) is interpreted as + * the start of year 1970 and it is the minimal representable time, + * all values form the sequence 2208988800..0xffffffff,0..2208988799. + */ + if (lfp.int_partl < OFFSET_1900_1970) + ret += (double)(1ULL << 32); /* because int_partl is 32-bit wide */ return ret; } static NOINLINE double @@ -582,8 +590,8 @@ d_to_lfp(l_fixedpt_t *lfp, double d) { uint32_t intl; uint32_t frac; - intl = (uint32_t)d; - frac = (uint32_t)((d - intl) * UINT_MAX); + intl = (uint32_t)(time_t)d; + frac = (uint32_t)((d - (time_t)d) * UINT_MAX); lfp->int_partl = htonl(intl); lfp->fractionl = htonl(frac); } |