/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */

/* tests/fuzzing/fuzz_chpw.c */

/*

 * Copyright (C) 2024 by Arjun. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * * Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 *

 * * Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in

 *   the documentation and/or other materials provided with the

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 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

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/*

 * Fuzzing harness implementation for krb5_chpw_message.

 */

#include "autoconf.h"

#include <k5-int.h>

#define kMinInputLength 2

#define kMaxInputLength 512

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

int

LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    char *msg;

    krb5_data data_in;

    krb5_context context;

    if (size < kMinInputLength || size > kMaxInputLength)

        return 0;

    data_in = make_data((void *)data, size);

    if (krb5_init_context(&context) != 0)

        return 0;

    if (krb5_chpw_message(context, &data_in, &msg) == 0)

        free(msg);

    krb5_free_context(context);

    return 0;

}