7339dd1ece
It would be called by qvm-sync-clock instead of 'date' directly. This gives a lot of flexibility - VM can control whether it want to sync time this way. For now slight corrections (+-2sec) are ignored to not cause problems by frequent time changes. But it can be easily extended to refuse time sync when some other mechanism is used.
12 lines
332 B
Bash
12 lines
332 B
Bash
#!/bin/sh
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# it is in format of `date -u -Iseconds`, example: 2014-09-29T22:59:21+0000
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# it comes from dom0, so is trusted
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read timestamp
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timediff=$(( `date -u +'+%Y%m%d%H%M%S'` - `date -u -d "$timestamp" +'+%Y%m%d%H%M%S'` ))
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if [ $timediff -le 2 -a $timediff -ge -2 ]; then
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# don't bother
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exit 0
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fi
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date -u -s "$timestamp"
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