/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR OR 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.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.] */

#include <openssl/asn1.h>
#include <openssl/evp.h>
#include <openssl/obj.h>
#include <openssl/x509.h>

#include "internal.h"


int X509_REQ_set_version(X509_REQ *x, long version) {
  if (x == NULL) {
    return 0;
  }
  if (version != X509_REQ_VERSION_1) {
    OPENSSL_PUT_ERROR(X509, X509_R_INVALID_VERSION);
    return 0;
  }
  return ASN1_INTEGER_set(x->req_info->version, version);
}

int X509_REQ_set_subject_name(X509_REQ *x, X509_NAME *name) {
  if ((x == NULL) || (x->req_info == NULL))
    return (0);
  return (X509_NAME_set(&x->req_info->subject, name));
}

int X509_REQ_set_pubkey(X509_REQ *x, EVP_PKEY *pkey) {
  if ((x == NULL) || (x->req_info == NULL))
    return (0);
  return (X509_PUBKEY_set(&x->req_info->pubkey, pkey));
}

int X509_REQ_set1_signature_algo(X509_REQ *req, const X509_ALGOR *algo) {
  /* TODO(https://crbug.com/boringssl/407): Generated ASN.1 dup functions
   * should be const. Alternatively, when we can embed required fields
   * directly in structs, import |X509_ALGOR_copy| from upstream. */
  X509_ALGOR *copy = X509_ALGOR_dup((X509_ALGOR *)algo);
  if (copy == NULL) {
    return 0;
  }

  X509_ALGOR_free(req->sig_alg);
  req->sig_alg = copy;
  return 1;
}

int X509_REQ_set1_signature_value(X509_REQ *req, const uint8_t *sig,
                                  size_t sig_len) {
  if (!ASN1_STRING_set(req->signature, sig, sig_len)) {
    return 0;
  }
  req->signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
  req->signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
  return 1;
}