/*

# Copyright 2020 Google Inc.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#      http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

################################################################################

*/

#include <haproxy/cfgparse.h>

#include <haproxy/chunk.h>

#include <haproxy/global.h>

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#define FUZZ_TRASH_SIZE 65536

static int trash_initialized = 0;

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

  /* One-time init: use init_trash_buffers() to properly initialize all trash

   * buffers (trash, trash_buf1, trash_buf2 and their large/small variants).

   * This mirrors haproxy's alloc_early_trash + alloc_trash_buffers_per_thread

   * startup sequence. */

  if (!trash_initialized) {

    global.tune.bufsize = FUZZ_TRASH_SIZE;

    global.tune.bufsize_large = FUZZ_TRASH_SIZE * 2;

    global.tune.bufsize_small = 1024;

    if (!init_trash_buffers(1))

      return 0;

    if (!init_trash_buffers(0))

      return 0;

    trash_initialized = 1;

  }

  struct cfgfile dummy_cfg = {

      .filename = "fuzzer",

      .content = (const char *)data,

      .size = size,

  };

  if (size < 50)

    return 0;

  parse_cfg(&dummy_cfg);

  return 0;

}