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Fix wrong reply to simple name when --domain-needed set and no servers configured.

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Also return REFUSED and not SERVFAIL when out of memory.

Thanks to Allain Legacy for problem report.
This commit is contained in:
Simon Kelley
2016-01-19 21:23:30 +00:00
parent f7443d76f7
commit d05dd58de1
3 changed files with 17 additions and 9 deletions
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13
src/forward.c
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@@ -249,9 +249,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
(void)do_bit;
/* may be no servers available. */
if (!daemon->servers)
forward = NULL;
else if (forward || (hash && (forward = lookup_frec_by_sender(ntohs(header->id), udpaddr, hash))))
if (forward || (hash && (forward = lookup_frec_by_sender(ntohs(header->id), udpaddr, hash))))
{
/* If we didn't get an answer advertising a maximal packet in EDNS,
fall back to 1280, which should work everywhere on IPv6.
@@ -334,9 +332,9 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
#endif
type &= ~SERV_DO_DNSSEC;
if (!flags && !(forward = get_new_frec(now, NULL, 0)))
/* table full - server failure. */
flags = F_NEG;
if (daemon->servers && !flags)
forward = get_new_frec(now, NULL, 0);
/* table full - flags == 0, return REFUSED */
if (forward)
{
@@ -1621,6 +1619,9 @@ unsigned char *tcp_request(int confd, time_t now,
unsigned int mark = 0;
int have_mark = 0;
(void)mark;
(void)have_mark;
if (getpeername(confd, (struct sockaddr *)&peer_addr, &peer_len) == -1)
return packet;