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| author | Denys Vlasenko | 2019-10-25 17:35:58 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2019-10-25 17:35:58 +0200 |
| commit | d6ff27de153c8f9361de13f75c7f7ed319044f7c (patch) | |
| tree | 1ffcd41b5181b5bae163750f075102817e7051f0 | |
| parent | b4ad1d86b62090fed831e074a3c154af43cd66ce (diff) | |
| download | busybox-d6ff27de153c8f9361de13f75c7f7ed319044f7c.zip busybox-d6ff27de153c8f9361de13f75c7f7ed319044f7c.tar.gz | |
ntpd: abs(tmx.offset) was truncating a "long" typed value
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | networking/ntpd.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/networking/ntpd.c b/networking/ntpd.c index 47410c2..e11160a 100644 --- a/networking/ntpd.c +++ b/networking/ntpd.c @@ -1876,9 +1876,11 @@ update_local_clock(peer_t *p) //15:31:53.473 update from:<IP> offset:+0.000007 delay:0.158142 jitter:0.010922 clock drift:+9.343ppm tc:6 //15:32:58.902 update from:<IP> offset:-0.000728 delay:0.158222 jitter:0.009454 clock drift:+9.298ppm tc:6 /* - * This expression would choose MIN_FREQHOLD + 8 in the above example. + * This expression would choose MIN_FREQHOLD + 8 in the above example + * (off_065 is +1 for each 0.065536 seconds of offset). */ - G.FREQHOLD_cnt = 1 + MIN_FREQHOLD + ((unsigned)(abs(tmx.offset)) >> 16); + unsigned off_065 = abs((int)(tmx.offset >> 16)); + G.FREQHOLD_cnt = 1 + MIN_FREQHOLD + off_065; } G.FREQHOLD_cnt--; tmx.status |= STA_FREQHOLD; |