--- embedaddon/iftop/cfgfile.c	2012/02/21 16:57:34	1.1.1.1
+++ embedaddon/iftop/cfgfile.c	2016/10/18 14:04:50	1.1.1.2
@@ -8,6 +8,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
+#include <stdlib.h>
 
 #include "stringmap.h"
 #include "iftop.h"
@@ -36,7 +37,12 @@ char * config_directives[] = {
 	"log-scale", 
 	"max-bandwidth",
 	"net-filter", 
+	"net-filter6", 
+        "link-local",
 	"port-display", 
+	"timed-output",
+	"no-curses",
+	"num-lines",
 	NULL
 };
 
@@ -45,9 +51,9 @@ stringmap config;
 extern options_t options ;
 
 int is_cfgdirective_valid(const char *s) {
-    char **t;
-    for (t = config_directives; *t != NULL; ++t)
-        if (strcmp(s, *t) == 0) return 1;
+    int t;
+    for (t = 0; config_directives[t] != NULL; t++)
+       if (strcmp(s, config_directives[t]) == 0) return 1;
     return 0;
 }
 
@@ -164,7 +170,6 @@ int config_get_int(const char *directive, int *value) 
  * failure, or 0 if no value was found. */
 int config_get_float(const char *directive, float *value) {
     stringmap S;
-    item *I;
     char *s, *t;
 
     if (!value) return -1;
@@ -230,12 +235,15 @@ void config_set_string(const char *directive, const ch
     stringmap S;
 
     S = stringmap_find(config, directive);
-    if (S) stringmap_delete_free(S);
-    stringmap_insert(config, directive, item_ptr(xstrdup(s)));
+    if (S) {
+      xfree(S->d.v);
+      S->d = item_ptr(xstrdup(s));
+    }
+    else {
+      stringmap_insert(config, directive, item_ptr(xstrdup(s)));
+    }
 }
 
 int read_config(char *file, int whinge_on_error) {
-    void* o;
-
     return read_config_file(file, whinge_on_error);
 }