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More EDNS0 packet-size tweaks.

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This commit is contained in:
Simon Kelley
2015-12-23 12:27:37 +00:00
parent 15379ea1f2
commit d3a8b39c7d
3 changed files with 21 additions and 16 deletions
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7
src/dnsmasq.c
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@@ -91,8 +91,11 @@ int main (int argc, char **argv)
if (daemon->edns_pktsz < PACKETSZ)
daemon->edns_pktsz = PACKETSZ;
daemon->packet_buff_sz = daemon->edns_pktsz > DNSMASQ_PACKETSZ ?
daemon->edns_pktsz : DNSMASQ_PACKETSZ;
/* Min buffer size: we check after adding each record, so there must be
memory for the largest packet, and the largest record so the
min for DNS is PACKETSZ+MAXDNAME+RRFIXEDSZ which is < 1000.
This might be increased is EDNS packet size if greater than the minimum. */
daemon->packet_buff_sz = daemon->edns_pktsz + MAXDNAME + RRFIXEDSZ;
daemon->packet = safe_malloc(daemon->packet_buff_sz);
daemon->addrbuff = safe_malloc(ADDRSTRLEN);