Do not use time() as a Netlink sequence number for each message,
as otherwise the same seq number will be used when sending
another message in the same second.  Instead use time() just for
initialization, then increment per message.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>

Index: ipset/lib/mnl.c
===================================================================
--- ipset.orig/lib/mnl.c
+++ ipset/lib/mnl.c
@@ -75,7 +75,7 @@ ipset_mnl_fill_hdr(struct ipset_handle *
 	nlh->nlmsg_flags = cmdflags[cmd - 1];
 	if (envflags & IPSET_ENV_EXIST)
 	    	nlh->nlmsg_flags &=  ~NLM_F_EXCL;
-	nlh->nlmsg_seq = handle->seq = time(NULL);
+	nlh->nlmsg_seq = ++handle->seq;
 
 	nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg));
 	nfg->nfgen_family = AF_INET;
@@ -135,6 +135,7 @@ ipset_mnl_init(mnl_cb_t *cb_ctl, void *d
 	handle->portid = mnl_socket_get_portid(handle->h);
 	handle->cb_ctl = cb_ctl;
 	handle->data = data;
+	handle->seq = time(NULL);
 	
 	return handle;