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resolved: log about reasons for switching to TCP

This commit is contained in:
Lennart Poettering 2016-01-08 16:17:43 +01:00
parent 571370c155
commit 29ab055292
1 changed files with 4 additions and 0 deletions
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4
src/resolve/resolved-dns-transaction.c
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@ -706,8 +706,10 @@ void dns_transaction_process_reply(DnsTransaction *t, DnsPacket *p) {
/* On DNS, couldn't send? Try immediately again, with a new server */
dns_transaction_retry(t);
return;
}
log_debug("Reply truncated, retrying via TCP.");
return;
}
@ -1265,6 +1267,8 @@ int dns_transaction_go(DnsTransaction *t) {
/* Try via UDP, and if that fails due to large size or lack of
* support try via TCP */
r = dns_transaction_emit_udp(t);
if (r == -EMSGSIZE)
log_debug("Sending query via TCP since it is too large.");
if (r == -EMSGSIZE || r == -EAGAIN)
r = dns_transaction_open_tcp(t);
}