Move lookup_variable into hashmap.c / hashmap.h

src/hashmap.c

@@ -493,3 +493,24 @@ ssize_t hashmap_remove (hashmap_t map, const char *key)
         /* The key was not found, so return 0 */
         return deleted;
 }
+
+/*
+ * Look up the value for a variable.
+ */
+char *lookup_variable (hashmap_t map, const char *varname)
+{
+        hashmap_iter result_iter;
+        char *key;
+        char *data;
+
+        result_iter = hashmap_find (map, varname);
+
+        if (hashmap_is_end (map, result_iter))
+                return (NULL);
+
+        if (hashmap_return_entry (map, result_iter,
+                                  &key, (void **) &data) < 0)
+                return (NULL);
+
+        return (data);
+}

src/hashmap.h

@@ -117,4 +117,9 @@ extern ssize_t hashmap_search (hashmap_t map, const char *key);
  */
 extern ssize_t hashmap_remove (hashmap_t map, const char *key);
 
+/*
+ * Look up the value for a variable.
+ */
+extern char *lookup_variable (hashmap_t map, const char *varname);
+
 #endif /* _HASHMAP_H */

src/html-error.c

@@ -83,27 +83,6 @@ static char *get_html_file (unsigned int errornum)
         return (val);
 }
 
-/*
- * Look up the value for a variable.
- */
-static char *lookup_variable (hashmap_t map, const char *varname)
-{
-        hashmap_iter result_iter;
-        char *key;
-        char *data;
-
-        result_iter = hashmap_find (map, varname);
-
-        if (hashmap_is_end (map, result_iter))
-                return (NULL);
-
-        if (hashmap_return_entry (map, result_iter,
-                                  &key, (void **) &data) < 0)
-                return (NULL);
-
-        return (data);
-}
-
 /*
  * Send an already-opened file to the client with variable substitution.
  */