Automatic merge of jdk:master into master

src/java.base/share/native/libfdlibm/k_standard.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -739,6 +739,10 @@ static double zero = 0.0;       /* used as const */
                         errno = EDOM;
                 }
                 break;
+            default:
+                exc.retval = zero / zero;
+                errno = EINVAL;
+                break;
         }
         return exc.retval;
 }

src/java.base/unix/native/libnet/NetworkInterface.c

@@ -1298,7 +1298,8 @@ static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
 static int getIndex(int sock, const char *name) {
     struct ifreq if2;
     memset((char *)&if2, 0, sizeof(if2));
-    strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
+    strncpy(if2.ifr_name, name, sizeof(if2.ifr_name));
+    if2.ifr_name[sizeof(if2.ifr_name) - 1] = 0;
 
     if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
         return -1;
@@ -1361,7 +1362,8 @@ static int getMTU(JNIEnv *env, int sock, const char *ifname) {
 static int getFlags(int sock, const char *ifname, int *flags) {
     struct ifreq if2;
     memset((char *)&if2, 0, sizeof(if2));
-    strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
+    strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name));
+    if2.ifr_name[sizeof(if2.ifr_name) - 1] = 0;
 
     if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
         return -1;