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local: check offset sanity before accumulation

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Don't accept an offset that points to time before 1970 or outside the
interval to which is mapped NTP time.
This commit is contained in:
Miroslav Lichvar
2015-04-07 14:58:58 +02:00
parent 183a648d01
commit aec97397e8
8 changed files with 77 additions and 13 deletions
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6
rtc.c
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@@ -93,9 +93,9 @@ fallback_time_init(void)
LCL_ReadCookedTime(&now, NULL);
if (now.tv_sec < buf.st_mtime) {
LCL_ApplyStepOffset(now.tv_sec - buf.st_mtime);
LOG(LOGS_INFO, LOGF_Rtc,
"System clock set from driftfile %s", drift_file);
if (LCL_ApplyStepOffset(now.tv_sec - buf.st_mtime))
LOG(LOGS_INFO, LOGF_Rtc, "System clock set from driftfile %s",
drift_file);
}
}