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net/icmpv6/icmpv6_input.c: fix undefined build error

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When CONFIG_NETDB_RESOLVCONF is enabled, CONFIG_NETDB_DNSSERVER_NAMESERVERS
will undefined, could cause net/icmpv6/icmpv6_input.c build error.
just add one nameserver to avoid overwrite ipv4 nameserver.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit is contained in:
zhanghongyu 2024-08-08 14:40:26 +08:00 committed by Xiang Xiao
parent 986ddc83ce
commit ce0599f46c
1 changed files with 6 additions and 9 deletions
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15
net/icmpv6/icmpv6_input.c
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@ -480,7 +480,6 @@ void icmpv6_input(FAR struct net_driver_s *dev, unsigned int iplen)
struct sockaddr_in6 addr; struct sockaddr_in6 addr;
int nservers; int nservers;
int ret; int ret;
int i;
if (rdnss->optlen < 3) if (rdnss->optlen < 3)
{ {
@ -497,15 +496,13 @@ void icmpv6_input(FAR struct net_driver_s *dev, unsigned int iplen)
servers = (FAR struct in6_addr *)rdnss->servers; servers = (FAR struct in6_addr *)rdnss->servers;
nservers = (rdnss->optlen - 1) / 2; nservers = (rdnss->optlen - 1) / 2;
/* Set the IPv6 DNS server address */ if (nservers > 0)
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
for (i = 0; i < CONFIG_NETDB_DNSSERVER_NAMESERVERS &&
i < nservers; i++)
{ {
net_ipv6addr_copy(&addr.sin6_addr, servers + i); /* Set the IPv6 DNS server address */
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
net_ipv6addr_copy(&addr.sin6_addr, servers);
ret = dns_add_nameserver( ret = dns_add_nameserver(
(FAR const struct sockaddr *)&addr, (FAR const struct sockaddr *)&addr,
sizeof(struct sockaddr_in6)); sizeof(struct sockaddr_in6));