Solving a bug with empty files

src/rawnode.c

@@ -15,6 +15,8 @@ int xml_getstringdata(node *n, char **nodestr)
 {
     dictionary *prop = malloc(sizeof(dictionary));
 
+    if (!prop)
+        return (-1);
     prop->key = my_strdup("data");
     prop->value = my_strdup(*nodestr);
     prop->next = NULL;

src/xmlparser.c

@@ -80,7 +80,8 @@ node *xml_parse(const char *path)
 
     if (fd < 0)
         return (NULL);
-    fstat(fd, &stats);
+    if (fstat(fd, &stats) < 0 || stats.st_size <= 0)
+        return (NULL);
     nodestr = malloc(stats.st_size + 1);
     if (nodestr) {
         count = read(fd, nodestr, stats.st_size);