/* ====================================================================

 * Copyright (c) 2003 The OpenSSL Project.  All rights reserved.

 *

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

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1. Redistributions of source code must retain the above copyright

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

 *

 * 2. 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

 *    distribution.

 *

 * 3. All advertising materials mentioning features or use of this

 *    software must display the following acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    openssl-core@openssl.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED 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 OpenSSL PROJECT OR

 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <openssl/opensslconf.h>

#include <openssl/hmac.h>

#include <openssl/sha.h>

int main(int argc, char **argv)

{

#ifdef OPENSSL_FIPS

    static char key[] = "orboDeJITITejsirpADONivirpUkvarP";

    int n, binary = 0;

    if (argc < 2) {

        fprintf(stderr, "%s [<file>]+\n", argv[0]);

        exit(1);

    }

    n = 1;

    if (!strcmp(argv[n], "-binary")) {

        n++;

        binary = 1;             /* emit binary fingerprint... */

    }

    for (; n < argc; ++n) {

        FILE *f = fopen(argv[n], "rb");

        HMAC_CTX *hmac_ctx;

        unsigned char mac[EVP_MAX_MD_SIZE];

        unsigned int len;

        unsigned int i;

        if (!f) {

            perror(argv[n]);

            exit(2);

        }

        hmac_ctx = HMAC_CTX_new();

        if (!hmac_ctx)

            exit(3);

        if (HMAC_Init_ex(hmac_ctx, key, strlen(key), EVP_sha256(), NULL) <= 0) {

            fprintf(stderr, "HMAC SHA256 initialization failed.\n");

            exit(4);

        }

        for (;;) {

            unsigned char buf[1024];

            size_t l = fread(buf, 1, sizeof buf, f);

            if (l == 0) {

                if (ferror(f)) {

                    perror(argv[n]);

                    exit(3);

                } else

                    break;

            }

            if (HMAC_Update(hmac_ctx, buf, l) <= 0) {

                fprintf(stderr, "HMAC_Update() failed.\n");

                exit(4);

            }

        }

        if (HMAC_Final(hmac_ctx, mac, &len) <= 0) {

            fprintf(stderr, "HMAC_Final() failed.\n");

            exit(4);

        }

        if (binary) {

            fwrite(mac, len, 1, stdout);

            break;              /* ... for single(!) file */

        }

/*      printf("HMAC-SHA1(%s)= ",argv[n]); */

        for (i = 0; i < len; ++i)

            printf("%02x", mac[i]);

        printf("\n");

    }

#endif

    return 0;

}