libnfnetlink and iface conversion to string

Index: src/nufw/packetsrv.c
===================================================================
@@ -18,6 +18,8 @@
 
 #include "nufw.h"
 
+#include "iface.h"
+
 /** \file packetsrv.c
  *  \brief Packet server thread
  *

@@ -159,6 +161,7 @@
     return 1;
 }
 
+
 /**
  * Open a netlink connection and returns file descriptor
  */

@@ -335,6 +338,7 @@
     unsigned char buffer[BUFSIZ];
     struct timeval tv;
     int fd;
+    int if_fd;
     int rv;
     int select_result;
     fd_set wk_set;

@@ -345,6 +349,12 @@
         exit(EXIT_FAILURE);
     }
 
+    if_fd = iface_table_open();
+
+    if (if_fd < 0) {
+        exit(EXIT_FAILURE);
+    }
+
     log_area_printf (DEBUG_AREA_MAIN, DEBUG_LEVEL_WARNING,
             "[+] Packet server started");
 

@@ -360,6 +370,7 @@
         /* wait new event on socket */
         FD_ZERO(&wk_set);
         FD_SET(fd,&wk_set);
+        FD_SET(if_fd,&wk_set);
         select_result = select(fd+1,&wk_set,NULL,NULL,&tv);
         if (select_result == -1)
         {

@@ -380,6 +391,10 @@
             continue;
         }
 
+        if (FD_ISSET(if_fd,&wk_set)){
+            iface_treat_message(if_fd);
+            continue;
+        }
         /* read one packet */
         rv = recv(fd, buffer, sizeof(buffer), 0);
         if (rv < 0)

Index: src/nufw/iface.c
===================================================================
@@ -42,4 +42,24 @@
 	return 1;
 }
 
+int iface_table_open()
+{
+    int iftable_fd;
+    /* opening ifname resolution handle */
+    iftable_fd = nlif_table_init();
+    if (iftable_fd <= 0) {
+        log_area_printf (DEBUG_AREA_MAIN, DEBUG_LEVEL_CRITICAL,
+                "[!] Error during nlif_table_init()");
+        return -1;
+    }
+    /* treat initial rtnetlink message */
+    nlif_treat_msg(iftable_fd);
+
+    return iftable_fd;
+}
+
+int iface_treat_message(int fd)
+{
+   return nlif_treat_msg(fd);
+}
 #endif