/*
 *  Classic "Hello, world" demonstration program
 *
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  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 "mbedtls/build_info.h"

#if defined(MBEDTLS_PLATFORM_C)
#    include "mbedtls/platform.h"
#else
#    include <stdlib.h>
#    include <stdio.h>
#    define mbedtls_printf       printf
#    define mbedtls_exit         exit
#    define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#    define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif

#if defined(MBEDTLS_MD5_C)
#    include "mbedtls/md5.h"
#endif

#if !defined(MBEDTLS_MD5_C)
int main(void)
{
    mbedtls_printf("MBEDTLS_MD5_C not defined.\n");
    mbedtls_exit(0);
}
#else

int main(void)
{
    int i, ret;
    unsigned char digest[16];
    char str[] = "Hello, world!";

    mbedtls_printf("\n  MD5('%s') = ", str);

    if ((ret = mbedtls_md5((unsigned char *)str, 13, digest)) != 0)
        mbedtls_exit(MBEDTLS_EXIT_FAILURE);

    for (i = 0; i < 16; i++)
        mbedtls_printf("%02x", digest[i]);

    mbedtls_printf("\n\n");

#    if defined(_WIN32)
    mbedtls_printf("  Press Enter to exit this program.\n");
    fflush(stdout);
    getchar();
#    endif

    mbedtls_exit(MBEDTLS_EXIT_SUCCESS);
}
#endif /* MBEDTLS_MD5_C */