Fix a strict-alias warning in tst-inet6_rth.

diff --git a/ChangeLog b/ChangeLog
index 98f62bf879e5c24d419260300fbec4d2bdd9156d..643a0525203b3d0b3c2b2f136832557c49a1cc62 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2012-11-29  Roland McGrath  <roland@hack.frob.com>
+
+       * inet/tst-inet6_rth.c (do_test): Use a union rather than type punning.
+
 2012-11-28  Jeff Law  <law@redhat.com>
 
        [BZ #13761]

diff --git a/inet/tst-inet6_rth.c b/inet/tst-inet6_rth.c
index 4c5c90ac013160b4f98b2924e0275a49cc190bfa..549d717c7de506c1e1069f4fdc4c6cbd9a8c8031 100644 (file)
--- a/inet/tst-inet6_rth.c
+++ b/inet/tst-inet6_rth.c
@@ -66,20 +66,24 @@ inet6_rth_segments returned wrong value after loop with third inet6_rth_add");
              goto out;
            }
 
-         char buf2[1000];
-         if (inet6_rth_reverse (p, buf2) != 0)
+          union
+          {
+            char buffer[1000];
+            struct ip6_rthdr0 rthdr0;
+          } buf2;
+         if (inet6_rth_reverse (p, buf2.buffer) != 0)
            {
              puts ("first inet6_rth_reverse call failed");
              res = 1;
              goto out;
            }
-         if (((struct ip6_rthdr0 *) buf2)->ip6r0_segleft != nseg)
+         if (buf2.rthdr0.ip6r0_segleft != nseg)
            {
              puts ("segleft after first inet6_rth_reverse wrong");
              res = 1;
            }
 
-         if (inet6_rth_segments (p) != inet6_rth_segments (buf2))
+         if (inet6_rth_segments (p) != inet6_rth_segments (buf2.buffer))
            {
              puts ("number of seconds after first inet6_rth_reverse differs");
              res = 1;
@@ -88,7 +92,7 @@ inet6_rth_segments returned wrong value after loop with third inet6_rth_add");
 
          for (int i = 0; i < nseg; ++i)
            {
-             struct in6_addr *addr = inet6_rth_getaddr (buf2, i);
+             struct in6_addr *addr = inet6_rth_getaddr (buf2.buffer, i);
              if (addr == NULL)
                {
                  printf ("call %d of first inet6_rth_getaddr failed\n",