[src/trunk]: src/sbin/ping6 avoit type punning

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/83ff2a8ffd39
branches:  trunk
changeset: 790662:83ff2a8ffd39
user:      christos <christos%NetBSD.org@localhost>
date:      Sat Oct 19 01:09:16 2013 +0000

description:
avoit type punning

diffstat:

 sbin/ping6/ping6.c |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (47 lines):

diff -r 0d319c185359 -r 83ff2a8ffd39 sbin/ping6/ping6.c
--- a/sbin/ping6/ping6.c        Sat Oct 19 01:08:25 2013 +0000
+++ b/sbin/ping6/ping6.c        Sat Oct 19 01:09:16 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ping6.c,v 1.81 2012/09/10 04:32:24 msaitoh Exp $       */
+/*     $NetBSD: ping6.c,v 1.82 2013/10/19 01:09:16 christos Exp $      */
 /*     $KAME: ping6.c,v 1.164 2002/11/16 14:05:37 itojun Exp $ */
 
 /*
@@ -77,7 +77,7 @@
 #else
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: ping6.c,v 1.81 2012/09/10 04:32:24 msaitoh Exp $");
+__RCSID("$NetBSD: ping6.c,v 1.82 2013/10/19 01:09:16 christos Exp $");
 #endif
 #endif
 
@@ -703,8 +703,10 @@
 
        ident = arc4random() & 0xFFFF;
        memset(nonce, 0, sizeof(nonce));
-       for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t))
-               *((u_int32_t *)&nonce[i]) = arc4random();
+       for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t)) {
+               uint32_t r = arc4random();
+               memcpy(&nonce[i], &r, sizeof(r));
+       }
 
        hold = 1;
 
@@ -1019,7 +1021,6 @@
 
        for (;;) {
                struct msghdr m;
-               struct cmsghdr *cm;
                u_char buf[1024];
                struct iovec iov[2];
 
@@ -1067,7 +1068,6 @@
                iov[0].iov_len = packlen;
                m.msg_iov = iov;
                m.msg_iovlen = 1;
-               cm = (struct cmsghdr *)buf;
                m.msg_control = (caddr_t)buf;
                m.msg_controllen = sizeof(buf);