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As pointed out in !813 db_registered is sort of redundant. It is set to `true` only in `dns_zone_rpz_enable_db()` right before the `dns_rpz_dbupdate_callback()` callback is registered. It is only required in that callback and it is the only place that the callback is registered. Therefore there is no path that that `REQUIRE` can fail. The `db_registered` variable is only set to `false` in `dns_rpz_new_zone`, so it is not like the variable is unset again later. The only other place where `db_registered` is checked is in `rpz_detach()`. If `true`, it will call `dns_db_updatenotify_unregister()`. However if that happens, the `db_registered` is not set back to `false` thus this implies that this may happen multiple times. If called a second time, most likely the unregister function will return `ISC_R_NOTFOUND`, but the return value is not checked anyway. So it can do without the `db_registered` check. |
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| irs | ||
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| isccfg | ||
| ns | ||
| samples | ||
| win32/bindevt | ||
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