/* -*- mode: c; c-file-style: "openbsd" -*- */

/*

 * Copyright (c) 2023 Vincent Bernat <bernat@luffy.cx>

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#include "../src/daemon/lldpd.h"

#define kMinInputLength 5

#define kMaxInputLength 2048

/* Use this callback to avoid some logs */

void donothing(int pri, const char *msg) {};

extern int

LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)

{

  if (Size < kMinInputLength || Size > kMaxInputLength) {

    return 1;

  }

  struct lldpd_chassis *nchassis = NULL;

  struct lldpd_port *nport = NULL;

  struct lldpd_hardware hardware;

  log_register(donothing);

  if (!cdpv2_guess((char *)Data, Size)) {

    return 1;

  }

  cdp_decode(NULL, (char *)Data, Size, &hardware, &nchassis, &nport);

  if (!nchassis || !nport) {

    return 1;

  }

  lldpd_port_cleanup(nport, 1);

  free(nport);

  lldpd_chassis_cleanup(nchassis, 1);

  return 0;

}