Solves #3 : fixing interface deduplication

Moving it in the parse_options function.

src/if.c

 			interface * new_ifs, int *new_ifs_n)
 {
 	struct rtnl_handle rth;
-	int ret = 0, i, j, n, dedup;
+	int ret = 0, i, n;
 
 	if (rtnl_open(&rth, 0) < 0) {
 		error("Cannot open the rtnetlink socket to talk to the kernel's "
 		*new_ifs_n = ret;
 	} else {
 		for (i = 0, n = 0; i < ifs_n; i++) {
-			dedup = 0;
-			for(j=0; j < n; j++) {
-				if(strcmp(ifs_name[i], new_ifs[j].dev_name) == 0) {
-					dedup = 1;
-					break;
-				}
-			}
-			if(dedup) {
-				continue;
-			}
 			new_ifs[n].dev_idx = ll_name_to_index(ifs_name[n]);
 			if (!new_ifs[n].dev_idx) {
 				error("Cannot initialize the %s interface. "

src/netsukuku.c

 
 	if (file_exist(server_opt.ext_map_file) &&
 		(me.ext_map = load_extmap(server_opt.ext_map_file, &me.cur_quadg)))
-		debug(DBG_NORMAL, "External map loaded");
+		debug(DBG_NORMAL, "External map loaded from '%s'", server_opt.ext_map_file);
 	else
 		me.ext_map = init_extmap(FAMILY_LVLS, 0);
 
 parse_options(int argc, char **argv)
 {
 	int c, saved_argc = argc;
+	int if_n, if_dup;
 	optind = 0;
 
 	while (1) {
                     	if(server_opt.ifs_n+1 >= MAX_INTERFACES)
                             fatal("The maximum number of interfaces is %d",
 							MAX_INTERFACES);
+			if_dup = 0;
+			printf("IF COUNT : %d\n", server_opt.ifs_n);
+			for(if_n = 0; if_n < server_opt.ifs_n; if_n++) {
+				if(strncmp(server_opt.ifs[if_n], optarg, IFNAMSIZ-1) == 0) {
+					if_dup = 1;
+					printf("DEDUP !!!\n");
+					break;
+				}
+			}
+			if(if_dup) { break; }
 			server_opt.ifs[server_opt.ifs_n++]=xstrndup(optarg, IFNAMSIZ-1);
 			break;
 		case 'D':