It seems pretty clear to me that what was here was wrong. A field of a
global struct was pointed at local array. The program logic was a little
wacky, but this is my best estimate of what was intended. Input?
Index: ping6.c
===================================================================
RCS file: /cvs/src/sbin/ping6/ping6.c,v
retrieving revision 1.112
diff -u -p -r1.112 ping6.c
--- ping6.c 1 Sep 2015 19:53:23 -0000 1.112
+++ ping6.c 7 Sep 2015 19:44:15 -0000
@@ -1056,7 +1056,10 @@ pinger(void)
memset(&iov, 0, sizeof(iov));
iov[0].iov_base = (caddr_t)outpack;
iov[0].iov_len = cc;
- smsghdr.msg_iov = iov;
+ smsghdr.msg_iov = calloc(1, sizeof(struct iovec));
+ if (smsghdr.msg_iov == NULL)
+ return(1);
+ *smsghdr.msg_iov = iov[0];
smsghdr.msg_iovlen = 1;
i = sendmsg(s, &smsghdr, 0);
