Add helper function tvh_str_update()

main.c

@@ -419,3 +419,16 @@ tvh_str_set(char **strp, const char *src)
   *strp = src ? strdup(src) : NULL;
 }
 
+
+/**
+ *
+ */
+void
+tvh_str_update(char **strp, const char *src)
+{
+  if(src == NULL)
+    return;
+  free(*strp);
+  *strp = strdup(src);
+}
+

tvhead.h

@@ -906,6 +906,7 @@ static inline unsigned int tvh_strhash(const char *s, unsigned int mod)
 #define MAX(a,b) ((a) > (b) ? (a) : (b))
 
 void tvh_str_set(char **strp, const char *src);
+void tvh_str_update(char **strp, const char *src);
 
 void tvhlog(int severity, const char *subsys, const char *fmt, ...);