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ntp: avoid unnecessary replacement attempts

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In the initial resolving of pool sources try to assign each address only
once. If it fails, it means the address is already used (DNS provided
the same address) or the address is not connectable. The same result can
be expected for other unresolved sources of the pool as they don't have
a real address yet.
This commit is contained in:
Miroslav Lichvar
2020-10-07 09:37:41 +02:00
parent 48709d9c4a
commit f3aea33ad4
1 changed files with 4 additions and 3 deletions
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7
ntp_sources.c
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@@ -444,8 +444,8 @@ process_resolved_name(struct UnresolvedSource *us, IPAddr *ip_addrs, int n_addrs
DEBUG_LOG("(%d) %s", i + 1, UTI_IPToString(&new_addr.ip_addr));
if (us->pool_id != INVALID_POOL) {
/* In the pool resolving mode, try to replace all sources from
the pool which don't have a real address yet */
/* In the pool resolving mode, try to replace a source from
the pool which does not have a real address yet */
for (j = 0; j < ARR_GetSize(records); j++) {
record = get_record(j);
if (!record->remote_addr || record->pool_id != us->pool_id ||
@@ -454,7 +454,8 @@ process_resolved_name(struct UnresolvedSource *us, IPAddr *ip_addrs, int n_addrs
old_addr = *record->remote_addr;
new_addr.port = old_addr.port;
if (replace_source_connectable(&old_addr, &new_addr))
break;
;
break;
}
} else {
new_addr.port = us->address.port;