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-rw-r--r--usr.sbin/arp/arp.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/usr.sbin/arp/arp.c b/usr.sbin/arp/arp.c
index f99cf0f..e585ba0 100644
--- a/usr.sbin/arp/arp.c
+++ b/usr.sbin/arp/arp.c
@@ -721,9 +721,13 @@ rtmsg(int cmd, struct sockaddr_inarp *dst, struct sockaddr_dl *sdl)
case RTM_GET:
rtm->rtm_addrs |= RTA_DST;
}
-#define NEXTADDR(w, s) \
- if ((s) != NULL && rtm->rtm_addrs & (w)) { \
- bcopy((s), cp, sizeof(*(s))); cp += SA_SIZE(s);}
+#define NEXTADDR(w, s) \
+ do { \
+ if ((s) != NULL && rtm->rtm_addrs & (w)) { \
+ bcopy((s), cp, sizeof(*(s))); \
+ cp += SA_SIZE(s); \
+ } \
+ } while (0)
NEXTADDR(RTA_DST, dst);
NEXTADDR(RTA_GATEWAY, sdl);
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