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| author | Miroslav Lichvar <mlichvar@redhat.com> | 2022-09-16 15:06:36 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2023-01-17 16:48:54 +0100 |
| commit | 85acf71d2579ebe4eec05c6f31901adffa700adc (patch) | |
| tree | 1f350548b148e952971a547667a8b2ec80029feb /TODO | |
| parent | ca96022d6edaaf619324db5a481698231d74d1df (diff) | |
| download | busybox-w32-85acf71d2579ebe4eec05c6f31901adffa700adc.tar.gz busybox-w32-85acf71d2579ebe4eec05c6f31901adffa700adc.tar.bz2 busybox-w32-85acf71d2579ebe4eec05c6f31901adffa700adc.zip | |
ntpd: make NTP client and server Y2036/2038-ready
The 32-bit integer part of the NTP timestamp overflows in year 2036,
which starts the second NTP era.
Modify the timestamp conversion to shift values between 1900-1970 (in
the first era) to the second era to enable the client to measure its
offset correctly until year 2106 (assuming 64-bit time_t).
Also update the conversion from double used when stepping the clock to
work with 64-bit time_t after reaching the maximum 32-bit value in 2038
and the server conversion to work correctly in the next NTP era.
function old new delta
lfp_to_d 51 64 +13
step_time 326 332 +6
.rodata 105260 105264 +4
d_to_lfp 100 86 -14
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(add/remove: 0/0 grow/shrink: 3/1 up/down: 23/-14) Total: 9 bytes
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'TODO')
0 files changed, 0 insertions, 0 deletions