Optimize code

Signed-off-by: Jianhui Zhao <jianhuizhao329@gmail.com>

src/action.c

@@ -29,7 +29,7 @@ int uh_add_action(struct uh_server *srv, const char *path, action_cb_t cb)
 {
     struct uh_action *a;
 
-    a = calloc(1, sizeof(struct uh_action));
+    a = calloc(1, sizeof(struct uh_action) + strlen(path) + 1);
     if (!a) {
         uh_log_err("calloc");
         return -1;

src/action.h

@@ -28,8 +28,8 @@ typedef void (*action_cb_t)(struct uh_client *cl);
 
 struct uh_action {
     struct avl_node avl;
-    char path[PATH_MAX];
     action_cb_t cb;
+    char path[0];
 };
 
 int uh_add_action(struct uh_server *srv, const char *path, action_cb_t cb);