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-rw-r--r--sunrpc/clnt_gen.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sunrpc/clnt_gen.c b/sunrpc/clnt_gen.c
index e8656eefc7..0f388572d4 100644
--- a/sunrpc/clnt_gen.c
+++ b/sunrpc/clnt_gen.c
@@ -78,7 +78,8 @@ clnt_create (const char *hostname, u_long prog, u_long vers,
   hstbuflen = 1024;
   hsttmpbuf = __alloca (hstbuflen);
   while (__gethostbyname_r (hostname, &hostbuf, hsttmpbuf, hstbuflen,
-			    &h, &herr) != 0)
+			    &h, &herr) != 0
+	 || h == NULL)
     if (herr != NETDB_INTERNAL || errno != ERANGE)
       {
 	rpc_createerr.cf_stat = RPC_UNKNOWNHOST;
@@ -107,7 +108,8 @@ clnt_create (const char *hostname, u_long prog, u_long vers,
 
   prtbuflen = 1024;
   prttmpbuf = __alloca (prtbuflen);
-  while (__getprotobyname_r (proto, &protobuf, prttmpbuf, prtbuflen, &p) != 0)
+  while (__getprotobyname_r (proto, &protobuf, prttmpbuf, prtbuflen, &p) != 0
+	 || p == NULL)
     if (errno != ERANGE)
       {
 	rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;