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Fix crash in PXE/netboot when DNS server disabled.

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This commit is contained in:
Simon Kelley
2021-10-19 15:33:41 +01:00
parent 37a70d39e0
commit 9560658c5b
3 changed files with 12 additions and 5 deletions
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10
src/cache.c
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@@ -1399,10 +1399,12 @@ struct in_addr a_record_from_hosts(char *name, time_t now)
struct crec *crecp = NULL;
struct in_addr ret;
while ((crecp = cache_find_by_name(crecp, name, now, F_IPV4)))
if (crecp->flags & F_HOSTS)
return crecp->addr.addr4;
/* If no DNS service, cache not initialised. */
if (daemon->port != 0)
while ((crecp = cache_find_by_name(crecp, name, now, F_IPV4)))
if (crecp->flags & F_HOSTS)
return crecp->addr.addr4;
my_syslog(MS_DHCP | LOG_WARNING, _("No IPv4 address found for %s"), name);
ret.s_addr = 0;