// Copyright 2016 The Chromium Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#include "libtsm.h"

#define WIDTH 80

#define HEIGHT 24

static void terminal_write_fn(struct tsm_vte *vte,

            const char *u8,

            size_t len,

            void *data)

{

  // try to access the written data

  static char out[4096];

  while (len--)

    out[len % sizeof(out)] = u8[len];

}

static int term_draw_cell(struct tsm_screen *screen, uint32_t id,

                          const uint32_t *ch, size_t len,

                          unsigned int cwidth, unsigned int posx,

                          unsigned int posy,

                          const struct tsm_screen_attr *attr,

                          tsm_age_t age, void *data)

{

  if (posx >= WIDTH || posy >= HEIGHT)

    abort();

  return 0;

}

// Entry point for LibFuzzer.

int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  struct tsm_screen *screen;

  struct tsm_vte *vte;

  const int scrollback_size = 200;  // frecon use 200

  tsm_screen_new(&screen, NULL, NULL);

  tsm_screen_set_max_sb(screen, scrollback_size);

  tsm_vte_new(&vte, screen, terminal_write_fn, NULL, NULL, NULL);

  tsm_screen_resize(screen, WIDTH, HEIGHT);

  tsm_vte_input(vte, (const char*) data, size);

  tsm_screen_draw(screen, term_draw_cell, NULL);

  tsm_vte_unref(vte);

  tsm_screen_unref(screen);

  return 0;

}