/*

 * Copyright (C) NGINX, Inc.

 */

#include <nxt_main.h>

#include <nxt_conf.h>

#include <nxt_router.h>

#define KMININPUTLENGTH 2

#define KMAXINPUTLENGTH 1024

extern int LLVMFuzzerInitialize(int *argc, char ***argv);

extern int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);

extern char  **environ;

int

LLVMFuzzerInitialize(int *argc, char ***argv)

{

    if (nxt_lib_start("fuzzing", NULL, &environ) != NXT_OK) {

        return NXT_ERROR;

    }

    return 0;

}

int

LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    nxt_mp_t                *mp;

    nxt_str_t               input;

    nxt_thread_t            *thr;

    nxt_runtime_t           *rt;

    nxt_conf_value_t        *conf;

    nxt_conf_validation_t   vldt;

    nxt_conf_json_pretty_t  pretty;

    if (size < KMININPUTLENGTH || size > KMAXINPUTLENGTH) {

        return 0;

    }

    thr = nxt_thread();

    mp = nxt_mp_create(1024, 128, 256, 32);

    if (mp == NULL) {

        return 0;

    }

    rt = nxt_mp_zget(mp, sizeof(nxt_runtime_t));

    if (rt == NULL) {

        goto failed;

    }

    rt->languages = nxt_array_create(mp, 1, sizeof(nxt_app_lang_module_t));

    if (rt->languages == NULL) {

        goto failed;

    }

    input.start = (u_char *)data;

    input.length = size;

    thr->runtime = rt;

    rt->mem_pool = mp;

    nxt_memzero(&pretty, sizeof(nxt_conf_json_pretty_t));

    nxt_memzero(&vldt, sizeof(nxt_conf_validation_t));

    conf = nxt_conf_json_parse_str(mp, &input);

    if (conf == NULL) {

        goto failed;

    }

    nxt_conf_json_length(conf, NULL);

    nxt_conf_json_length(conf, &pretty);

    vldt.pool = nxt_mp_create(1024, 128, 256, 32);

    if (vldt.pool == NULL) {

        goto failed;

    }

    vldt.conf = conf;

    vldt.conf_pool = mp;

    vldt.ver = NXT_VERNUM;

    nxt_conf_validate(&vldt);

    nxt_mp_destroy(vldt.pool);

failed:

    nxt_mp_destroy(mp);

    return 0;

}