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Renaud Métrich
1be86fae15
When trying to resolve DNS names into IP addresses, the DNS code fails from time to time with the following error: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- error: ../../grub-core/net/dns.c:688:no DNS record found. -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- This happens when both IPv4 and IPv6 queries are performed against the DNS server (e.g. 8.8.8.8) but there is no IP returned for IPv6 query, as shown below: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- grub> net_del_dns 192.168.122.1 grub> net_add_dns 8.8.8.8 grub> net_nslookup ipv4.test-ipv6.com error: ../../grub-core/net/dns.c:688:no DNS record found. grub> net_nslookup ipv4.test-ipv6.com 216.218.228.115 -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- The root cause is the code exiting prematurely when the data->addresses buffer has been allocated in recv_hook(), even if there was no address returned last time recv_hook() executed. Signed-off-by: Renaud Métrich <rmetrich@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>