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Fix crash when empty address from DNS overlays A record from hosts.

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This commit is contained in:
Edwin Török
2015-11-14 17:45:48 +00:00
committed by Simon Kelley
parent 90477fb794
commit 41a8d9e99b
2 changed files with 6 additions and 1 deletions
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2
src/cache.c
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@@ -481,7 +481,7 @@ struct crec *cache_insert(char *name, struct all_addr *addr,
existing record is for an A or AAAA and
the record we're trying to insert is the same,
just drop the insert, but don't error the whole process. */
if ((flags & (F_IPV4 | F_IPV6)) && (flags & F_FORWARD))
if ((flags & (F_IPV4 | F_IPV6)) && (flags & F_FORWARD) && addr)
{
if ((flags & F_IPV4) && (new->flags & F_IPV4) &&
new->addr.addr.addr.addr4.s_addr == addr->addr.addr4.s_addr)