diff --git a/usr.sbin/ppp/bundle.c b/usr.sbin/ppp/bundle.c
index 859a63e23151..f9a9cce82c90 100644
--- a/usr.sbin/ppp/bundle.c
+++ b/usr.sbin/ppp/bundle.c
@@ -1439,14 +1439,15 @@ bundle_ReceiveDatalink(struct bundle *bundle, int s)
   msg.msg_control = cmsgbuf;
   msg.msg_controllen = sizeof cmsgbuf;
 
-  log_Printf(LogDEBUG, "Expecting %d scatter/gather bytes\n", iov[0].iov_len);
+  log_Printf(LogDEBUG, "Expecting %u scatter/gather bytes\n",
+             (unsigned)iov[0].iov_len);
 
   if ((got = recvmsg(s, &msg, MSG_WAITALL)) != iov[0].iov_len) {
     if (got == -1)
       log_Printf(LogERROR, "Failed recvmsg: %s\n", strerror(errno));
     else
-      log_Printf(LogERROR, "Failed recvmsg: Got %d, not %d\n",
-                 got, iov[0].iov_len);
+      log_Printf(LogERROR, "Failed recvmsg: Got %d, not %u\n",
+                 got, (unsigned)iov[0].iov_len);
     while (niov--)
       free(iov[niov].iov_base);
     return;
@@ -1623,15 +1624,16 @@ bundle_SendDatalink(struct datalink *dl, int s, struct sockaddr_un *sun)
       log_Printf(LogERROR, "setsockopt(SO_RCVBUF, %d): %s\n", expect,
                  strerror(errno));
 
-    log_Printf(LogDEBUG, "Sending %d descriptor%s and %d bytes in scatter"
-               "/gather array\n", nfd, nfd == 1 ? "" : "s", iov[0].iov_len);
+    log_Printf(LogDEBUG, "Sending %d descriptor%s and %u bytes in scatter"
+               "/gather array\n", nfd, nfd == 1 ? "" : "s",
+               (unsigned)iov[0].iov_len);
 
     if ((got = sendmsg(s, &msg, 0)) == -1)
       log_Printf(LogERROR, "Failed sendmsg: %s: %s\n",
                  sun->sun_path, strerror(errno));
     else if (got != iov[0].iov_len)
-      log_Printf(LogERROR, "%s: Failed initial sendmsg: Only sent %d of %d\n",
-                 sun->sun_path, got, iov[0].iov_len);
+      log_Printf(LogERROR, "%s: Failed initial sendmsg: Only sent %d of %u\n",
+                 sun->sun_path, got, (unsigned)iov[0].iov_len);
     else {
       /* We must get the ACK before closing the descriptor ! */
       int res;
diff --git a/usr.sbin/ppp/ipcp.c b/usr.sbin/ppp/ipcp.c
index 6e3260b60dfe..7ae6a3c85306 100644
--- a/usr.sbin/ppp/ipcp.c
+++ b/usr.sbin/ppp/ipcp.c
@@ -371,7 +371,8 @@ ipcp_Show(struct cmdargs const *arg)
 	          inet_ntoa(ipcp->peer_ip), vj2asc(ipcp->peer_compproto));
     prompt_Printf(arg->prompt, " My side:         %s, %s\n",
 	          inet_ntoa(ipcp->my_ip), vj2asc(ipcp->my_compproto));
-    prompt_Printf(arg->prompt, " Queued packets:  %d\n", ip_QueueLen(ipcp));
+    prompt_Printf(arg->prompt, " Queued packets:  %lu\n",
+                  (unsigned long)ip_QueueLen(ipcp));
   }
 
   if (ipcp->route) {
diff --git a/usr.sbin/ppp/mbuf.c b/usr.sbin/ppp/mbuf.c
index 5bd58dcc6fc9..5d5135847804 100644
--- a/usr.sbin/ppp/mbuf.c
+++ b/usr.sbin/ppp/mbuf.c
@@ -112,8 +112,8 @@ m_get(size_t m_len, int type)
      */
     *mb = (struct mbucket *)malloc(BUCKET_CHUNK * size);
     if (*mb == NULL) {
-      log_Printf(LogALERT, "Failed to allocate memory (%u)\n",
-                 BUCKET_CHUNK * size);
+      log_Printf(LogALERT, "Failed to allocate memory (%lu)\n",
+                 (unsigned long)BUCKET_CHUNK * size);
       AbortProgram(EX_OSERR);
     }
     bp = &(*mb)->u.m;
@@ -354,7 +354,7 @@ m_enqueue(struct mqueue *queue, struct mbuf *bp)
     } else
       queue->last = queue->top = bp;
     queue->len++;
-    log_Printf(LogDEBUG, "m_enqueue: len = %d\n", queue->len);
+    log_Printf(LogDEBUG, "m_enqueue: len = %lu\n", (unsigned long)queue->len);
   }
 }
 
diff --git a/usr.sbin/ppp/nat_cmd.c b/usr.sbin/ppp/nat_cmd.c
index ed7876d5bac7..490ef73c0198 100644
--- a/usr.sbin/ppp/nat_cmd.c
+++ b/usr.sbin/ppp/nat_cmd.c
@@ -383,8 +383,8 @@ nat_LayerPull(struct bundle *bundle, struct link *l, struct mbuf *bp,
 
   bp->m_len = ntohs(pip->ip_len);
   if (bp->m_len > MAX_MRU) {
-    log_Printf(LogWARN, "nat_LayerPull: Problem with IP header length (%d)\n",
-               bp->m_len);
+    log_Printf(LogWARN, "nat_LayerPull: Problem with IP header length (%lu)\n",
+               (unsigned long)bp->m_len);
     m_freem(bp);
     return NULL;
   }
diff --git a/usr.sbin/ppp/physical.c b/usr.sbin/ppp/physical.c
index f20f2d3eab40..611796e27439 100644
--- a/usr.sbin/ppp/physical.c
+++ b/usr.sbin/ppp/physical.c
@@ -385,8 +385,8 @@ physical_DescriptorWrite(struct fdescriptor *d, struct bundle *bundle,
 
   if (p->out) {
     nw = physical_Write(p, MBUF_CTOP(p->out), p->out->m_len);
-    log_Printf(LogDEBUG, "%s: DescriptorWrite: wrote %d(%d) to %d\n",
-               p->link.name, nw, p->out->m_len, p->fd);
+    log_Printf(LogDEBUG, "%s: DescriptorWrite: wrote %d(%lu) to %d\n",
+               p->link.name, nw, (unsigned long)p->out->m_len, p->fd);
     if (nw > 0) {
       p->out->m_len -= nw;
       p->out->m_offset += nw;
diff --git a/usr.sbin/ppp/slcompress.c b/usr.sbin/ppp/slcompress.c
index d5fa74c21391..75b952eae976 100644
--- a/usr.sbin/ppp/slcompress.c
+++ b/usr.sbin/ppp/slcompress.c
@@ -154,8 +154,8 @@ sl_compress_tcp(struct mbuf * m,
    * the caller has already made sure the packet is IP proto TCP).
    */
   if ((ip->ip_off & htons(0x3fff)) || m->m_len < 40) {
-    log_Printf(LogDEBUG, "??? 1 ip_off = %x, m_len = %d\n",
-	      ip->ip_off, m->m_len);
+    log_Printf(LogDEBUG, "??? 1 ip_off = %x, m_len = %lu\n",
+	      ip->ip_off, (unsigned long)m->m_len);
     log_DumpBp(LogDEBUG, "", m);
     return (TYPE_IP);
   }