2004-11-19 Andrew J. Schorr <ajschorr@alumni.princeton.edu>

	* global: Replace strerror with safe_strerror.  And vtysh/vtysh.c
	  needs to include "log.h" to pick up the declaration.

19 files changed, 93 insertions, 93 deletions

diff --git a/zebra/if_ioctl.c b/zebra/if_ioctl.c
index 431e7ea1..90f18e28 100644
--- a/zebra/if_ioctl.c
+++ b/zebra/if_ioctl.c
@@ -50,7 +50,7 @@ interface_list_ioctl ()
   sock = socket (AF_INET, SOCK_DGRAM, 0);
   if (sock < 0) 
     {
-      zlog_warn ("Can't make AF_INET socket stream: %s", strerror (errno));
+      zlog_warn ("Can't make AF_INET socket stream: %s", safe_strerror (errno));
       return -1;
     }
 
@@ -79,7 +79,7 @@ interface_list_ioctl ()
 
       if (ret < 0) 
 	{
-	  zlog_warn ("SIOCGIFCONF: %s", strerror(errno));
+	  zlog_warn ("SIOCGIFCONF: %s", safe_strerror(errno));
 	  goto end;
 	}
       /* Repeatedly get info til buffer fails to grow. */
@@ -218,7 +218,7 @@ if_getaddrs ()
   ret = getifaddrs (&ifap); 
   if (ret != 0)
     {
-      zlog_err ("getifaddrs(): %s", strerror (errno));
+      zlog_err ("getifaddrs(): %s", safe_strerror (errno));
       return -1;
     }
 
@@ -334,7 +334,7 @@ if_get_addr (struct interface *ifp)
     {
       if (errno != EADDRNOTAVAIL)
 	{
-	  zlog_warn ("SIOCGIFADDR fail: %s", strerror (errno));
+	  zlog_warn ("SIOCGIFADDR fail: %s", safe_strerror (errno));
 	  return ret;
 	}
       return 0;
@@ -347,7 +347,7 @@ if_get_addr (struct interface *ifp)
     {
       if (errno != EADDRNOTAVAIL) 
 	{
-	  zlog_warn ("SIOCGIFNETMASK fail: %s", strerror (errno));
+	  zlog_warn ("SIOCGIFNETMASK fail: %s", safe_strerror (errno));
 	  return ret;
 	}
       return 0;
@@ -369,7 +369,7 @@ if_get_addr (struct interface *ifp)
 	{
 	  if (errno != EADDRNOTAVAIL) 
 	    {
-	      zlog_warn ("SIOCGIFDSTADDR fail: %s", strerror (errno));
+	      zlog_warn ("SIOCGIFDSTADDR fail: %s", safe_strerror (errno));
 	      return ret;
 	    }
 	  return 0;
@@ -384,7 +384,7 @@ if_get_addr (struct interface *ifp)
 	{
 	  if (errno != EADDRNOTAVAIL) 
 	    {
-	      zlog_warn ("SIOCGIFBRDADDR fail: %s", strerror (errno));
+	      zlog_warn ("SIOCGIFBRDADDR fail: %s", safe_strerror (errno));
 	      return ret;
 	    }
 	  return 0;
diff --git a/zebra/if_ioctl_solaris.c b/zebra/if_ioctl_solaris.c
index 4f8284a3..1cbf555e 100644
--- a/zebra/if_ioctl_solaris.c
+++ b/zebra/if_ioctl_solaris.c
@@ -60,7 +60,7 @@ interface_list_ioctl (int af)
   if (sock < 0)
     {
       zlog_warn ("Can't make %s socket stream: %s",
-                 (af == AF_INET ? "AF_INET" : "AF_INET6"), strerror (errno));
+                 (af == AF_INET ? "AF_INET" : "AF_INET6"), safe_strerror (errno));
                  
       if (zserv_privs.change(ZPRIVS_LOWER))
         zlog (NULL, LOG_ERR, "Can't lower privileges");
@@ -79,7 +79,7 @@ calculate_lifc_len:     /* must hold privileges to enter here */
   if (ret < 0)
     {
       zlog_warn ("interface_list_ioctl: SIOCGLIFNUM failed %s",
-                 strerror (errno));
+                 safe_strerror (errno));
       close (sock);
       return -1;
     }
@@ -120,7 +120,7 @@ calculate_lifc_len:     /* must hold privileges to enter here */
       if (errno == EINVAL)
         goto calculate_lifc_len; /* deliberately hold privileges */
 
-      zlog_warn ("SIOCGLIFCONF: %s", strerror (errno));
+      zlog_warn ("SIOCGLIFCONF: %s", safe_strerror (errno));
 
       if (zserv_privs.change(ZPRIVS_LOWER))
         zlog (NULL, LOG_ERR, "Can't lower privileges");
@@ -232,7 +232,7 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
       if (ret < 0)
         {
           zlog_warn ("SIOCGLIFDSTADDR (%s) fail: %s",
-                     ifp->name, strerror (errno));
+                     ifp->name, safe_strerror (errno));
           return ret;
         }
       memcpy (&dest, &lifreq.lifr_dstaddr, ADDRLEN (addr));
@@ -251,7 +251,7 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
           if (errno != EADDRNOTAVAIL)
             {
               zlog_warn ("SIOCGLIFNETMASK (%s) fail: %s", ifp->name,
-                         strerror (errno));
+                         safe_strerror (errno));
               return ret;
             }
           return 0;
@@ -267,7 +267,7 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
               if (errno != EADDRNOTAVAIL)
                 {
                   zlog_warn ("SIOCGLIFBRDADDR (%s) fail: %s",
-                             ifp->name, strerror (errno));
+                             ifp->name, safe_strerror (errno));
                   return ret;
                 }
               return 0;
@@ -289,7 +289,7 @@ if_get_addr (struct interface *ifp, struct sockaddr *addr)
           if (ret < 0)
             {
               zlog_warn ("SIOCGLIFSUBNET (%s) fail: %s",
-                         ifp->name, strerror (errno));
+                         ifp->name, safe_strerror (errno));
             }
           else
             {
diff --git a/zebra/if_proc.c b/zebra/if_proc.c
index 6c47d430..199a8e70 100644
--- a/zebra/if_proc.c
+++ b/zebra/if_proc.c
@@ -138,7 +138,7 @@ ifstat_update_proc ()
   if (fp == NULL)
     {
       zlog_warn ("Can't open proc file %s: %s",
-		 _PATH_PROC_NET_DEV, strerror (errno));
+		 _PATH_PROC_NET_DEV, safe_strerror (errno));
       return -1;
     }
 
@@ -179,7 +179,7 @@ interface_list_proc ()
   if (fp == NULL)
     {
       zlog_warn ("Can't open proc file %s: %s",
-		 _PATH_PROC_NET_DEV, strerror (errno));
+		 _PATH_PROC_NET_DEV, safe_strerror (errno));
       return -1;
     }
 
@@ -222,7 +222,7 @@ ifaddr_proc_ipv6 ()
   if (fp == NULL)
     {
       zlog_warn ("Can't open proc file %s: %s",
-		 _PATH_PROC_NET_IF_INET6, strerror (errno));
+		 _PATH_PROC_NET_IF_INET6, safe_strerror (errno));
       return -1;
     }
   
diff --git a/zebra/if_sysctl.c b/zebra/if_sysctl.c
index 1441dfcc..7ad570f4 100644
--- a/zebra/if_sysctl.c
+++ b/zebra/if_sysctl.c
@@ -52,7 +52,7 @@ ifstat_update_sysctl ()
   /* Query buffer size. */
   if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) 
     {
-      zlog_warn ("sysctl() error by %s", strerror (errno));
+      zlog_warn ("sysctl() error by %s", safe_strerror (errno));
       return -1;
     }
 
@@ -62,7 +62,7 @@ ifstat_update_sysctl ()
   /* Fetch interface informations into allocated buffer. */
   if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) 
     {
-      zlog (NULL, LOG_WARNING, "sysctl error by %s", strerror (errno));
+      zlog (NULL, LOG_WARNING, "sysctl error by %s", safe_strerror (errno));
       return -1;
     }
 
@@ -108,7 +108,7 @@ interface_list ()
   /* Query buffer size. */
   if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) 
     {
-      zlog (NULL, LOG_WARNING, "sysctl() error by %s", strerror (errno));
+      zlog (NULL, LOG_WARNING, "sysctl() error by %s", safe_strerror (errno));
       return;
     }
 
@@ -118,7 +118,7 @@ interface_list ()
   /* Fetch interface informations into allocated buffer. */
   if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) 
     {
-      zlog (NULL, LOG_WARNING, "sysctl error by %s", strerror (errno));
+      zlog (NULL, LOG_WARNING, "sysctl error by %s", safe_strerror (errno));
       return;
     }
 
diff --git a/zebra/interface.c b/zebra/interface.c
index 813adb84..f97dc3fd 100644
--- a/zebra/interface.c
+++ b/zebra/interface.c
@@ -234,7 +234,7 @@ if_addr_wakeup (struct interface *ifp)
 	      if (ret < 0)
 		{
 		  zlog_warn ("Can't set interface's address: %s", 
-			     strerror(errno));
+			     safe_strerror(errno));
 		  continue;
 		}
 
@@ -261,7 +261,7 @@ if_addr_wakeup (struct interface *ifp)
 	      if (ret < 0)
 		{
 		  zlog_warn ("Can't set interface's address: %s", 
-			     strerror(errno));
+			     safe_strerror(errno));
 		  continue;
 		}
 	      SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
@@ -1163,7 +1163,7 @@ ip_address_install (struct vty *vty, struct interface *ifp,
       if (ret < 0)
 	{
 	  vty_out (vty, "%% Can't set interface IP address: %s.%s", 
-		   strerror(errno), VTY_NEWLINE);
+		   safe_strerror(errno), VTY_NEWLINE);
 	  return CMD_WARNING;
 	}
 
@@ -1227,7 +1227,7 @@ ip_address_uninstall (struct vty *vty, struct interface *ifp,
   if (ret < 0)
     {
       vty_out (vty, "%% Can't unset interface IP address: %s.%s", 
-	       strerror(errno), VTY_NEWLINE);
+	       safe_strerror(errno), VTY_NEWLINE);
       return CMD_WARNING;
     }
 
@@ -1355,7 +1355,7 @@ ipv6_address_install (struct vty *vty, struct interface *ifp,
       if (ret < 0)
 	{
 	  vty_out (vty, "%% Can't set interface IP address: %s.%s", 
-		   strerror(errno), VTY_NEWLINE);
+		   safe_strerror(errno), VTY_NEWLINE);
 	  return CMD_WARNING;
 	}
 
@@ -1416,7 +1416,7 @@ ipv6_address_uninstall (struct vty *vty, struct interface *ifp,
   if (ret < 0)
     {
       vty_out (vty, "%% Can't unset interface IP address: %s.%s", 
-	       strerror(errno), VTY_NEWLINE);
+	       safe_strerror(errno), VTY_NEWLINE);
       return CMD_WARNING;
     }
 
diff --git a/zebra/ioctl_solaris.c b/zebra/ioctl_solaris.c
index 7b4dde36..8ebd0f41 100644
--- a/zebra/ioctl_solaris.c
+++ b/zebra/ioctl_solaris.c
@@ -331,7 +331,7 @@ if_set_flags (struct interface *ifp, unsigned long flags)
 
   if (ret < 0)
     zlog_info ("can't set interface flags on %s: %s", ifp->name,
-               strerror (errno));
+               safe_strerror (errno));
   else
     ret = 0;
     
diff --git a/zebra/ipforward_proc.c b/zebra/ipforward_proc.c
index 4c30cf67..443cb1c6 100644
--- a/zebra/ipforward_proc.c
+++ b/zebra/ipforward_proc.c
@@ -77,13 +77,13 @@ ipforward_on ()
   FILE *fp;
   
   if ( zserv_privs.change(ZPRIVS_RAISE) )
-  	zlog_err ("Can't raise privileges, %s", strerror (errno) );
+  	zlog_err ("Can't raise privileges, %s", safe_strerror (errno) );
 
   fp = fopen (proc_ipv4_forwarding, "w");
 
   if (fp == NULL) {
     if ( zserv_privs.change(ZPRIVS_LOWER) )
-      zlog_err ("Can't lower privileges, %s", strerror (errno));
+      zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
     return -1;
   }
 
@@ -92,7 +92,7 @@ ipforward_on ()
   fclose (fp);
 
   if ( zserv_privs.change(ZPRIVS_LOWER) )
-    zlog_err ("Can't lower privileges, %s", strerror (errno));
+    zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
 
   return ipforward ();
 }
@@ -103,13 +103,13 @@ ipforward_off ()
   FILE *fp;
 
   if ( zserv_privs.change(ZPRIVS_RAISE) )
-  	zlog_err ("Can't raise privileges, %s", strerror (errno));
+  	zlog_err ("Can't raise privileges, %s", safe_strerror (errno));
 
   fp = fopen (proc_ipv4_forwarding, "w");
 
   if (fp == NULL) {
     if ( zserv_privs.change(ZPRIVS_LOWER) )
-      zlog_err ("Can't lower privileges, %s", strerror (errno));
+      zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
     return -1;
   }
 
@@ -118,7 +118,7 @@ ipforward_off ()
   fclose (fp);
 
   if ( zserv_privs.change(ZPRIVS_LOWER) )
-    zlog_err ("Can't lower privileges, %s", strerror (errno));
+    zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
 
   return ipforward ();
 }
@@ -150,13 +150,13 @@ ipforward_ipv6_on ()
   FILE *fp;
 
   if ( zserv_privs.change(ZPRIVS_RAISE) )
-  	zlog_err ("Can't raise privileges, %s", strerror (errno));
+  	zlog_err ("Can't raise privileges, %s", safe_strerror (errno));
 
   fp = fopen (proc_ipv6_forwarding, "w");
 
   if (fp == NULL) {
     if ( zserv_privs.change(ZPRIVS_LOWER) )
-      zlog_err ("Can't lower privileges, %s", strerror (errno));
+      zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
     return -1;
   }
 
@@ -165,7 +165,7 @@ ipforward_ipv6_on ()
   fclose (fp);
 
   if ( zserv_privs.change(ZPRIVS_LOWER) )
-    zlog_err ("Can't lower privileges, %s", strerror (errno));
+    zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
 
   return ipforward_ipv6 ();
 }
@@ -176,13 +176,13 @@ ipforward_ipv6_off ()
   FILE *fp;
 
   if ( zserv_privs.change(ZPRIVS_RAISE) )
-  	zlog_err ("Can't raise privileges, %s", strerror (errno));
+  	zlog_err ("Can't raise privileges, %s", safe_strerror (errno));
 
   fp = fopen (proc_ipv6_forwarding, "w");
 
   if (fp == NULL) {
     if ( zserv_privs.change(ZPRIVS_LOWER) )
-      zlog_err ("Can't lower privileges, %s", strerror (errno));
+      zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
     return -1;
   }
 
@@ -191,7 +191,7 @@ ipforward_ipv6_off ()
   fclose (fp);
 
   if ( zserv_privs.change(ZPRIVS_LOWER) )
-    zlog_err ("Can't lower privileges, %s", strerror (errno));
+    zlog_err ("Can't lower privileges, %s", safe_strerror (errno));
 
   return ipforward_ipv6 ();
 }
diff --git a/zebra/ipforward_solaris.c b/zebra/ipforward_solaris.c
index 8d6fd98b..2eaf3416 100644
--- a/zebra/ipforward_solaris.c
+++ b/zebra/ipforward_solaris.c
@@ -80,7 +80,7 @@ solaris_nd(const int cmd, const char* parameter, const int value)
        zlog_err ("solaris_nd: Can't raise privileges");
   if ((fd = open (device, O_RDWR)) < 0) 
     {
-      zlog_warn("failed to open device %s - %s", device, strerror(errno));
+      zlog_warn("failed to open device %s - %s", device, safe_strerror(errno));
       if ( zserv_privs.change (ZPRIVS_LOWER) )
         zlog_err ("solaris_nd: Can't lower privileges");
       return -1;
@@ -90,7 +90,7 @@ solaris_nd(const int cmd, const char* parameter, const int value)
       if ( zserv_privs.change (ZPRIVS_LOWER) )
         zlog_err ("solaris_nd: Can't lower privileges");
       close (fd);
-      zlog_warn("ioctl I_STR failed on device %s - %s", device,strerror(errno));
+      zlog_warn("ioctl I_STR failed on device %s - %s", device,safe_strerror(errno));
       return -1;
     }
   close(fd);
@@ -104,7 +104,7 @@ solaris_nd(const int cmd, const char* parameter, const int value)
       if (errno) 
         {
           zlog_warn("failed to convert returned value to integer - %s",
-                    strerror(errno));
+                    safe_strerror(errno));
           retval = -1;
         }
     } 
diff --git a/zebra/irdp_interface.c b/zebra/irdp_interface.c
index e824abed..d6fd1c59 100644
--- a/zebra/irdp_interface.c
+++ b/zebra/irdp_interface.c
@@ -116,7 +116,7 @@ int if_group (struct interface *ifp,
     zlog_warn ("IRDP: %s can't setsockopt %s: %s",
 	       add_leave == IP_ADD_MEMBERSHIP? "join group":"leave group", 
                inet_2a(group, b1),
-               strerror (errno));
+               safe_strerror (errno));
 
   return ret;
 }
diff --git a/zebra/irdp_main.c b/zebra/irdp_main.c
index 7b916969..8f0250bf 100644
--- a/zebra/irdp_main.c
+++ b/zebra/irdp_main.c
@@ -104,16 +104,16 @@ irdp_sock_init (void)
 
   if ( zserv_privs.change (ZPRIVS_RAISE) )
        zlog_err ("irdp_sock_init: could not raise privs, %s",
-                  strerror (errno) );
+                  safe_strerror (errno) );
 
   irdp_sock = socket (AF_INET, SOCK_RAW, IPPROTO_ICMP);
 
   if ( zserv_privs.change (ZPRIVS_LOWER) )
        zlog_err ("irdp_sock_init: could not lower privs, %s",
-             strerror (errno) );
+             safe_strerror (errno) );
 
   if (irdp_sock < 0) {
-    zlog_warn ("IRDP: can't create irdp socket %s", strerror(errno));
+    zlog_warn ("IRDP: can't create irdp socket %s", safe_strerror(errno));
     return irdp_sock;
   };
   
@@ -121,13 +121,13 @@ irdp_sock_init (void)
   ret = setsockopt (irdp_sock, IPPROTO_IP, IP_TTL, 
                         (void *) &i, sizeof (i));
   if (ret < 0) {
-    zlog_warn ("IRDP: can't do irdp sockopt %s", strerror(errno));
+    zlog_warn ("IRDP: can't do irdp sockopt %s", safe_strerror(errno));
     return ret;
   };
   
   ret = setsockopt_ifindex (AF_INET, irdp_sock, 1);
   if (ret < 0) {
-    zlog_warn ("IRDP: can't do irdp sockopt %s", strerror(errno));
+    zlog_warn ("IRDP: can't do irdp sockopt %s", safe_strerror(errno));
     return ret;
   };
 
diff --git a/zebra/irdp_packet.c b/zebra/irdp_packet.c
index 60604353..d78348cd 100644
--- a/zebra/irdp_packet.c
+++ b/zebra/irdp_packet.c
@@ -206,7 +206,7 @@ int irdp_recvmsg (int sock, u_char *buf, int size, int *ifindex)
 
   ret = recvmsg (sock, &msg, 0);
   if (ret < 0) {
-    zlog_warn("IRDP: recvmsg: read error %s", strerror(errno));
+    zlog_warn("IRDP: recvmsg: read error %s", safe_strerror(errno));
     return ret;
   }
 
@@ -316,21 +316,21 @@ send_packet(struct interface *ifp,
   on = 1;
   if (setsockopt(irdp_sock, IPPROTO_IP, IP_HDRINCL,
 		 (char *) &on, sizeof(on)) < 0)
-    zlog_warn("sendto %s", strerror (errno));
+    zlog_warn("sendto %s", safe_strerror (errno));
 
 
   if(dst == INADDR_BROADCAST ) {
     on = 1;
     if (setsockopt(irdp_sock, SOL_SOCKET, SO_BROADCAST,
 		   (char *) &on, sizeof(on)) < 0)
-      zlog_warn("sendto %s", strerror (errno));
+      zlog_warn("sendto %s", safe_strerror (errno));
   }
 
   if(dst !=  INADDR_BROADCAST) {
       on = 0; 
       if( setsockopt(irdp_sock,IPPROTO_IP, IP_MULTICAST_LOOP, 
 		     (char *)&on,sizeof(on)) < 0)
-	zlog_warn("sendto %s", strerror (errno));
+	zlog_warn("sendto %s", safe_strerror (errno));
   }
 
   bzero(&sockdst,sizeof(sockdst));
@@ -359,7 +359,7 @@ send_packet(struct interface *ifp,
   sockopt_iphdrincl_swab_htosys (ip);
   
   if (sendmsg(irdp_sock, msg, 0) < 0) {
-    zlog_warn("sendto %s", strerror (errno));
+    zlog_warn("sendto %s", safe_strerror (errno));
   }
   /*   printf("TX on %s idx %d\n", ifp->name, ifp->ifindex); */
 }
diff --git a/zebra/kernel_socket.c b/zebra/kernel_socket.c
index 27b88957..60542c61 100644
--- a/zebra/kernel_socket.c
+++ b/zebra/kernel_socket.c
@@ -798,7 +798,7 @@ rtm_write (int message,
       if (errno == ENETUNREACH)
 	return ZEBRA_ERR_RTUNREACH;
       
-      zlog_warn ("write : %s (%d)", strerror (errno), errno);
+      zlog_warn ("write : %s (%d)", safe_strerror (errno), errno);
       return -1;
     }
   return 0;
@@ -896,7 +896,7 @@ kernel_read (struct thread *thread)
   if (nbytes <= 0)
     {
       if (nbytes < 0 && errno != EWOULDBLOCK && errno != EAGAIN)
-	zlog_warn ("routing socket error: %s", strerror (errno));
+	zlog_warn ("routing socket error: %s", safe_strerror (errno));
       return 0;
     }
 
diff --git a/zebra/rt_ioctl.c b/zebra/rt_ioctl.c
index d470572b..34840104 100644
--- a/zebra/rt_ioctl.c
+++ b/zebra/rt_ioctl.c
@@ -151,7 +151,7 @@ kernel_add_route (struct prefix_ipv4 *dest, struct in_addr *gate,
 	}
 
       close (sock);
-      zlog_warn ("write : %s (%d)", strerror (errno), errno);
+      zlog_warn ("write : %s (%d)", safe_strerror (errno), errno);
       return 1;
     }
   close (sock);
@@ -326,7 +326,7 @@ kernel_ioctl_ipv4 (u_long cmd, struct prefix *p, struct rib *rib, int family)
 	}
 
       close (sock);
-      zlog_warn ("write : %s (%d)", strerror (errno), errno);
+      zlog_warn ("write : %s (%d)", safe_strerror (errno), errno);
       return ret;
     }
   close (sock);
@@ -411,7 +411,7 @@ kernel_ioctl_ipv6 (u_long type, struct prefix_ipv6 *dest, struct in6_addr *gate,
   if (ret < 0)
     {
       zlog_warn ("can't %s ipv6 route: %s\n", type == SIOCADDRT ? "add" : "delete", 
-	   strerror(errno));
+	   safe_strerror(errno));
       ret = errno;
       close (sock);
       return ret;
@@ -526,7 +526,7 @@ kernel_ioctl_ipv6_multipath (u_long cmd, struct prefix *p, struct rib *rib,
     {
       zlog_warn ("can't %s ipv6 route: %s\n",
 		 cmd == SIOCADDRT ? "add" : "delete", 
-	   strerror(errno));
+	   safe_strerror(errno));
       ret = errno;
       close (sock);
       return ret;
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 50e83b77..eb31e6cd 100644
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -99,7 +99,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
   if (sock < 0)
     {
       zlog (NULL, LOG_ERR, "Can't open %s socket: %s", nl->name,
-            strerror (errno));
+            safe_strerror (errno));
       return -1;
     }
 
@@ -107,7 +107,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
   if (ret < 0)
     {
       zlog (NULL, LOG_ERR, "Can't set %s socket flags: %s", nl->name,
-            strerror (errno));
+            safe_strerror (errno));
       close (sock);
       return -1;
     }
@@ -125,7 +125,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
       if (ret < 0)
 	{
 	  zlog (NULL, LOG_ERR, "Can't get %s receive buffer size: %s", nl->name,
-		strerror (errno));
+		safe_strerror (errno));
 	  close (sock);
 	  return -1;
 	}
@@ -135,7 +135,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
       if (ret < 0)
 	{
 	  zlog (NULL, LOG_ERR, "Can't set %s receive buffer size: %s", nl->name,
-		strerror (errno));
+		safe_strerror (errno));
 	  close (sock);
 	  return -1;
 	}
@@ -144,7 +144,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
       if (ret < 0)
 	{
 	  zlog (NULL, LOG_ERR, "Can't get %s receive buffer size: %s", nl->name,
-		strerror (errno));
+		safe_strerror (errno));
 	  close (sock);
 	  return -1;
 	}
@@ -172,7 +172,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
   if (ret < 0)
     {
       zlog (NULL, LOG_ERR, "Can't bind %s socket to group 0x%x: %s",
-            nl->name, snl.nl_groups, strerror (errno));
+            nl->name, snl.nl_groups, safe_strerror (errno));
       close (sock);
       return -1;
     }
@@ -183,7 +183,7 @@ netlink_socket (struct nlsock *nl, unsigned long groups)
   if (ret < 0 || namelen != sizeof snl)
     {
       zlog (NULL, LOG_ERR, "Can't get %s socket name: %s", nl->name,
-            strerror (errno));
+            safe_strerror (errno));
       close (sock);
       return -1;
     }
@@ -201,14 +201,14 @@ set_netlink_blocking (struct nlsock *nl, int *flags)
   if ((*flags = fcntl (nl->sock, F_GETFL, 0)) < 0)
     {
       zlog (NULL, LOG_ERR, "%s:%i F_GETFL error: %s",
-            __FUNCTION__, __LINE__, strerror (errno));
+            __FUNCTION__, __LINE__, safe_strerror (errno));
       return -1;
     }
   *flags &= ~O_NONBLOCK;
   if (fcntl (nl->sock, F_SETFL, *flags) < 0)
     {
       zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
-            __FUNCTION__, __LINE__, strerror (errno));
+            __FUNCTION__, __LINE__, safe_strerror (errno));
       return -1;
     }
   return 0;
@@ -222,7 +222,7 @@ set_netlink_nonblocking (struct nlsock *nl, int *flags)
   if (fcntl (nl->sock, F_SETFL, *flags) < 0)
     {
       zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
-            __FUNCTION__, __LINE__, strerror (errno));
+            __FUNCTION__, __LINE__, safe_strerror (errno));
       return -1;
     }
   return 0;
@@ -277,7 +277,7 @@ netlink_request (int family, int type, struct nlsock *nl)
   if (ret < 0)
     {
       zlog (NULL, LOG_ERR, "%s sendto failed: %s", nl->name,
-            strerror (errno));
+            safe_strerror (errno));
       return -1;
     }
 
@@ -392,7 +392,7 @@ netlink_parse_info (int (*filter) (struct sockaddr_nl *, struct nlmsghdr *),
 
                 zlog (NULL, loglvl, "%s error: %s, type=%s(%u), "
                       "seq=%u, pid=%d",
-                      nl->name, strerror (-errnum),
+                      nl->name, safe_strerror (-errnum),
                       lookup (nlmsg_str, msg_type),
                       msg_type, err->msg.nlmsg_seq, err->msg.nlmsg_pid);
               }
@@ -1227,7 +1227,7 @@ netlink_talk (struct nlmsghdr *n, struct nlsock *nl)
   if (status < 0)
     {
       zlog (NULL, LOG_ERR, "netlink_talk sendmsg() error: %s",
-            strerror (errno));
+            safe_strerror (errno));
       return -1;
     }
 
diff --git a/zebra/rtadv.c b/zebra/rtadv.c
index cb29a67e..770f975b 100644
--- a/zebra/rtadv.c
+++ b/zebra/rtadv.c
@@ -301,7 +301,7 @@ rtadv_send_packet (int sock, struct interface *ifp)
   if (ret < 0)
     {
       zlog_err ("rtadv_send_packet: sendmsg %d (%s)\n",
-		errno, strerror(errno));
+		errno, safe_strerror(errno));
     }
 }
 
@@ -425,7 +425,7 @@ rtadv_read (struct thread *thread)
 
   if (len < 0) 
     {
-      zlog_warn ("router solicitation recv failed: %s.", strerror (errno));
+      zlog_warn ("router solicitation recv failed: %s.", safe_strerror (errno));
       return len;
     }
 
@@ -443,13 +443,13 @@ rtadv_make_socket (void)
 
   if ( zserv_privs.change (ZPRIVS_RAISE) )
        zlog_err ("rtadv_make_socket: could not raise privs, %s",
-                  strerror (errno) );
+                  safe_strerror (errno) );
                   
   sock = socket (AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
 
   if ( zserv_privs.change (ZPRIVS_LOWER) )
        zlog_err ("rtadv_make_socket: could not lower privs, %s",
-       			 strerror (errno) );
+       			 safe_strerror (errno) );
 
   /* When we can't make ICMPV6 socket simply back.  Router
      advertisement feature will not be supported. */
@@ -480,7 +480,7 @@ rtadv_make_socket (void)
 		    sizeof (struct icmp6_filter));
   if (ret < 0)
     {
-      zlog_info ("ICMP6_FILTER set fail: %s", strerror (errno));
+      zlog_info ("ICMP6_FILTER set fail: %s", safe_strerror (errno));
       return ret;
     }
 
@@ -1223,7 +1223,7 @@ if_join_all_router (int sock, struct interface *ifp)
   ret = setsockopt (sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, 
 		    (char *) &mreq, sizeof mreq);
   if (ret < 0)
-    zlog_warn ("can't setsockopt IPV6_JOIN_GROUP: %s", strerror (errno));
+    zlog_warn ("can't setsockopt IPV6_JOIN_GROUP: %s", safe_strerror (errno));
 
   zlog_info ("rtadv: %s join to all-routers multicast group", ifp->name);
 
@@ -1244,7 +1244,7 @@ if_leave_all_router (int sock, struct interface *ifp)
   ret = setsockopt (sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, 
 		    (char *) &mreq, sizeof mreq);
   if (ret < 0)
-    zlog_warn ("can't setsockopt IPV6_LEAVE_GROUP: %s", strerror (errno));
+    zlog_warn ("can't setsockopt IPV6_LEAVE_GROUP: %s", safe_strerror (errno));
 
   zlog_info ("rtadv: %s leave from all-routers multicast group", ifp->name);
 
diff --git a/zebra/rtread_getmsg.c b/zebra/rtread_getmsg.c
index 435eed80..ff6d7bc0 100644
--- a/zebra/rtread_getmsg.c
+++ b/zebra/rtread_getmsg.c
@@ -108,7 +108,7 @@ void route_read ()
 
 	if ((dev = open (_PATH_GETMSG_ROUTE, O_RDWR)) == -1) {
 		zlog_warn ("can't open %s: %s", _PATH_GETMSG_ROUTE,
-			strerror (errno));
+			safe_strerror (errno));
 		return;
 	}
 
@@ -129,7 +129,7 @@ void route_read ()
 	flags = 0;
 
 	if (putmsg (dev, &msgdata, NULL, flags) == -1) {
-		zlog_warn ("putmsg failed: %s", strerror (errno));
+		zlog_warn ("putmsg failed: %s", safe_strerror (errno));
 		goto exit;
 	}
 
@@ -141,7 +141,7 @@ void route_read ()
 		retval = getmsg (dev, &msgdata, NULL, &flags);
 
 		if (retval == -1) {
-			zlog_warn ("getmsg(ctl) failed: %s", strerror (errno));
+			zlog_warn ("getmsg(ctl) failed: %s", safe_strerror (errno));
 			goto exit;
 		}
 
@@ -156,7 +156,7 @@ void route_read ()
 		if (msgdata.len >= sizeof (struct T_error_ack) &&
 			TLIerr->PRIM_type == T_ERROR_ACK) {
 			zlog_warn ("getmsg(ctl) returned T_ERROR_ACK: %s",
-				strerror ((TLIerr->TLI_error == TSYSERR)
+				safe_strerror ((TLIerr->TLI_error == TSYSERR)
 				? TLIerr->UNIX_error : EPROTO));
 			break;
 		}
@@ -196,7 +196,7 @@ void route_read ()
 
 			if (retval == -1) {
 				zlog_warn ("getmsg(data) failed: %s",
-					strerror (errno));
+					safe_strerror (errno));
 				goto exit;
 			}
 
diff --git a/zebra/rtread_proc.c b/zebra/rtread_proc.c
index 320152e7..6e021c32 100644
--- a/zebra/rtread_proc.c
+++ b/zebra/rtread_proc.c
@@ -56,7 +56,7 @@ proc_route_read ()
   fp = fopen (_PATH_PROCNET_ROUTE, "r");
   if (fp == NULL)
     {
-      zlog_warn ("Can't open %s : %s\n", _PATH_PROCNET_ROUTE, strerror (errno));
+      zlog_warn ("Can't open %s : %s\n", _PATH_PROCNET_ROUTE, safe_strerror (errno));
       return -1;
     }
   
@@ -111,7 +111,7 @@ proc_ipv6_route_read ()
   if (fp == NULL)
     {
       zlog_warn ("Can't open %s : %s", _PATH_PROCNET_ROUTE6, 
-		strerror (errno));
+		safe_strerror (errno));
       return -1;
     }
   
diff --git a/zebra/rtread_sysctl.c b/zebra/rtread_sysctl.c
index 970c0aa1..78864f2b 100644
--- a/zebra/rtread_sysctl.c
+++ b/zebra/rtread_sysctl.c
@@ -48,7 +48,7 @@ route_read ()
   /* Get buffer size. */
   if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) 
     {
-      zlog_warn ("sysctl fail: %s", strerror (errno));
+      zlog_warn ("sysctl fail: %s", safe_strerror (errno));
       return -1;
     }
 
@@ -58,7 +58,7 @@ route_read ()
   /* Read routing table information by calling sysctl(). */
   if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) 
     {
-      zlog_warn ("sysctl() fail by %s", strerror (errno));
+      zlog_warn ("sysctl() fail by %s", safe_strerror (errno));
       return -1;
     }
 
diff --git a/zebra/zserv.c b/zebra/zserv.c
index 10dd5fa5..09dddf63 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -1369,7 +1369,7 @@ zebra_accept (struct thread *thread)
 
   if (client_sock < 0)
     {
-      zlog_warn ("Can't accept zebra socket: %s", strerror (errno));
+      zlog_warn ("Can't accept zebra socket: %s", safe_strerror (errno));
       return -1;
     }
 
@@ -1400,7 +1400,7 @@ zebra_serv ()
 
   if (accept_sock < 0) 
     {
-      zlog_warn ("Can't bind to socket: %s", strerror (errno));
+      zlog_warn ("Can't bind to socket: %s", safe_strerror (errno));
       zlog_warn ("zebra can't provice full functionality due to above error");
       return;
     }
@@ -1423,7 +1423,7 @@ zebra_serv ()
 	       sizeof (struct sockaddr_in));
   if (ret < 0)
     {
-      zlog_warn ("Can't bind to socket: %s", strerror (errno));
+      zlog_warn ("Can't bind to socket: %s", safe_strerror (errno));
       zlog_warn ("zebra can't provice full functionality due to above error");
       close (accept_sock);      /* Avoid sd leak. */
       return;
@@ -1435,7 +1435,7 @@ zebra_serv ()
   ret = listen (accept_sock, 1);
   if (ret < 0)
     {
-      zlog_warn ("Can't listen to socket: %s", strerror (errno));
+      zlog_warn ("Can't listen to socket: %s", safe_strerror (errno));
       zlog_warn ("zebra can't provice full functionality due to above error");
       close (accept_sock);	/* Avoid sd leak. */
       return;