[PATCH] getaddrinfo.c: support MPTCP

[zhenwei pi]

There is a lack of MPTCP support from gaih_inet_typeproto array, add
MPTCP entry.

Signed-off-by: zhenwei pi <zhenwei.pi@linux.dev>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
---
 nss/getaddrinfo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nss/getaddrinfo.c b/nss/getaddrinfo.c
index 21e899ff1d..efe6ad30d5 100644
--- a/nss/getaddrinfo.c
+++ b/nss/getaddrinfo.c
@@ -143,6 +143,9 @@ static const struct gaih_typeproto gaih_inet_typeproto[] =
 #ifdef IPPROTO_SCTP
   { SOCK_STREAM, IPPROTO_SCTP, 0, false, "sctp" },
   { SOCK_SEQPACKET, IPPROTO_SCTP, 0, false, "sctp" },
+#endif
+#ifdef IPPROTO_MPTCP
+  { SOCK_STREAM, IPPROTO_MPTCP, 0, false, "mptcp" },
 #endif
   { SOCK_RAW, 0, GAI_PROTO_PROTOANY|GAI_PROTO_NOSERVICE, true, "raw" },
   { 0, 0, 0, false, "" }
-- 
2.43.0