Quagga: Fix compile warnings for GCC4.9

As part of the debian build process for jessie we are seeing
some compile issues.  This addresses these issues

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

bgpd/bgp_debug.c

@@ -1081,7 +1081,7 @@ DEFUN (debug_bgp_update_direct_peer,
     {
       struct peer *peer;
       struct peer_af *paf;
-      int af;
+      enum bgp_af_index af;
 
       bgp_debug_list_add_entry(bgp_debug_update_out_peers, host, NULL);
       peer = bgp_find_peer (vty, host);
@@ -1220,7 +1220,7 @@ DEFUN (no_debug_bgp_update_direct_peer,
 
       struct peer *peer;
       struct peer_af *paf;
-      int af;
+      enum bgp_af_index af;
       peer = bgp_find_peer (vty, host);
 
       if (peer)

bgpd/bgp_route.c

@@ -2200,7 +2200,7 @@ bgp_process_queue_init (void)
   bm->process_main_queue->spec.yield = 50 * 1000L;
   
   memcpy (bm->process_rsclient_queue, bm->process_main_queue,
-          sizeof (struct work_queue *));
+          sizeof (struct work_queue));
   bm->process_rsclient_queue->spec.workfunc = &bgp_process_rsclient;
 }
 

bgpd/bgp_updgrp.h

@@ -517,7 +517,7 @@ static inline void
 update_group_adjust_peer_afs (struct peer *peer)
 {
   struct peer_af *paf;
-  afi_t afi;
+  enum bgp_af_index afi;
 
   PEERAF_FOREACH (peer, paf, afi) update_group_adjust_peer (paf);
 }
@@ -531,7 +531,7 @@ static inline void
 update_group_remove_peer_afs (struct peer *peer)
 {
   struct peer_af *paf;
-  afi_t afi;
+  enum bgp_af_index afi;
 
   PEERAF_FOREACH (peer, paf, afi)
     update_subgroup_remove_peer (PAF_SUBGRP (paf), paf);
@@ -581,7 +581,7 @@ static inline void
 bgp_announce_peer (struct peer *peer)
 {
   struct peer_af *paf;
-  int af;
+  enum bgp_af_index af;
 
   PEERAF_FOREACH (peer, paf, af) subgroup_announce_all (PAF_SUBGRP (paf));
 }

bgpd/bgpd.c

@@ -1091,7 +1091,7 @@ peer_xfer_config (struct peer *peer_dst, struct peer *peer_src)
   struct peer_af *paf;
   afi_t afi;
   safi_t safi;
-  int afindex;
+  enum bgp_af_index afindex;
 
   assert(peer_src);
   assert(peer_dst);

lib/vty.c

@@ -2311,8 +2311,16 @@ vty_use_backup_config (char *fullpath)
     }
   
   while((c = read (sav, buffer, 512)) > 0)
-    write (tmp, buffer, c);
-  
+    {
+      if (write (tmp, buffer, c) <= 0)
+	{
+	  free (fullpath_sav);
+	  free (fullpath_tmp);
+	  close (sav);
+	  close (tmp);
+	  return NULL;
+	}
+    }
   close (sav);
   close (tmp);
   
@@ -2349,7 +2357,11 @@ vty_read_config (char *config_file,
     {
       if (! IS_DIRECTORY_SEP (config_file[0]))
         {
-          getcwd (cwd, MAXPATHLEN);
+          if (getcwd (cwd, MAXPATHLEN) == NULL)
+	    {
+	      fprintf (stderr, "Failure to determine Current Working Directory %d!\n", errno);
+	      exit (1);
+	    }
           tmp = XMALLOC (MTYPE_TMP, 
  			      strlen (cwd) + strlen (config_file) + 2);
           sprintf (tmp, "%s/%s", cwd, config_file);
@@ -2484,7 +2496,11 @@ vty_log_fixed (char *buf, size_t len)
       if (((vty = vector_slot (vtyvec, i)) != NULL) && vty->monitor)
 	/* N.B. We don't care about the return code, since process is
 	   most likely just about to die anyway. */
-	writev(vty->fd, iov, 2);
+	if (writev(vty->fd, iov, 2) == -1)
+	  {
+	    fprintf(stderr, "Failure to writev: %d\n", errno);
+	    exit(-1);
+	  }
     }
 }
 
@@ -2932,8 +2948,21 @@ vty_save_cwd (void)
 
   if (!c)
     {
-      chdir (SYSCONFDIR);
-      getcwd (cwd, MAXPATHLEN);
+      /*
+       * At this point if these go wrong, more than likely
+       * the whole world is coming down around us
+       * Hence not worrying about it too much.
+       */
+      if (!chdir (SYSCONFDIR))
+	{
+	  fprintf(stderr, "Failure to chdir to %s, errno: %d\n", SYSCONFDIR, errno);
+	  exit(-1);
+	}
+      if (getcwd (cwd, MAXPATHLEN) == NULL)
+	{
+	  fprintf(stderr, "Failure to getcwd, errno: %d\n", errno);
+	  exit(-1);
+	}
     }
 
   vty_cwd = XMALLOC (MTYPE_TMP, strlen (cwd) + 1);

zebra/router-id.c

@@ -242,8 +242,8 @@ router_id_init (void)
   install_element (CONFIG_NODE, &router_id_cmd);
   install_element (CONFIG_NODE, &no_router_id_cmd);
 
-  memset (rid_all_sorted_list, 0, sizeof (rid_all_sorted_list));
-  memset (rid_lo_sorted_list, 0, sizeof (rid_lo_sorted_list));
+  memset (rid_all_sorted_list, 0, sizeof (_rid_all_sorted_list));
+  memset (rid_lo_sorted_list, 0, sizeof (_rid_lo_sorted_list));
   memset (&rid_user_assigned, 0, sizeof (rid_user_assigned));
 
   rid_all_sorted_list->cmp = router_id_cmp;