text: /*
   * Copyright (c) 2018-2022 Pantacor Ltd.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <fcntl.h>
  #include <unistd.h>
  #include <ctype.h>
  
  #include <sys/utsname.h>
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <linux/limits.h>
  
  #include "addons.h"
  #include "loop.h"
  #include "pantavisor.h"
  #include "state.h"
  
  #define MODULE_NAME             "addon"
  #define pv_log(level, msg, ...)         vlog(MODULE_NAME, level, msg, ## __VA_ARGS__)
  #include "log.h"
  
  static void pv_addon_free(struct pv_addon *a)
  {
  	if (!a)
  		return;
  
  	if (a->name)
  		free(a->name);
  
  	free(a);
  }
  
  void pv_addons_empty(struct pv_state *s)
  {
  	int num_addons = 0;
  	struct pv_addon *a, *tmp;
  	struct dl_list *addons = &s->addons;
  
  	// Iterate over all plats from state
  	dl_list_for_each_safe(a, tmp, addons,
              struct pv_addon, list) {
  		pv_log(DEBUG, "removing addon %s", a->name);
  		dl_list_del(&a->list);
  		pv_addon_free(a);
  		num_addons++;
  	}
  
  	pv_log(INFO, "removed %d addons", num_addons);
  }
  
  struct pv_addon* pv_addon_add(struct pv_state *s, char *name)
  {
  	struct pv_addon *a = calloc(1, sizeof(struct pv_addon));
  
  	if (a) {
  		a->name = name;
  		dl_list_init(&a->list);
  		dl_list_add_tail(&s->addons, &a->list);
  	}
  
  	return a;
  }
  