/* $OpenBSD: by_mem.c,v 1.5 2021/11/01 20:53:08 tb Exp $ */

/* 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 <sys/uio.h>

#include <errno.h>

#include <stdio.h>

#include <time.h>

#include <unistd.h>

#include <openssl/buffer.h>

#include <openssl/err.h>

#include <openssl/pem.h>

#include <openssl/lhash.h>

#include <openssl/x509.h>

#include "x509_lcl.h"

static int by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **);

static X509_LOOKUP_METHOD x509_mem_lookup = {

  .name = "Load cert from memory",

  .new_item = NULL,

  .free = NULL,

  .init = NULL,

  .shutdown = NULL,

  .ctrl = by_mem_ctrl,

  .get_by_subject = NULL,

  .get_by_issuer_serial = NULL,

  .get_by_fingerprint = NULL,

  .get_by_alias = NULL,

};

X509_LOOKUP_METHOD *

X509_LOOKUP_mem(void)

{

  return (&x509_mem_lookup);

}

static int

by_mem_ctrl(X509_LOOKUP *lu, int cmd, const char *buf,

    long type, char **ret)

{

  STACK_OF(X509_INFO) *inf = NULL;

  const struct iovec  *iov;

  X509_INFO   *itmp;

  BIO     *in = NULL;

  int      i, count = 0, ok = 0;

  iov = (const struct iovec *)buf;

  if (!(cmd == X509_L_MEM && type == X509_FILETYPE_PEM))

    goto done;

  if ((in = BIO_new_mem_buf(iov->iov_base, iov->iov_len)) == NULL)

    goto done;

  if ((inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL)) == NULL)

    goto done;

  for (i = 0; i < sk_X509_INFO_num(inf); i++) {

    itmp = sk_X509_INFO_value(inf, i);

    if (itmp->x509) {

      ok = X509_STORE_add_cert(lu->store_ctx, itmp->x509);

      if (!ok)

        goto done;

      count++;

    }

    if (itmp->crl) {

      ok = X509_STORE_add_crl(lu->store_ctx, itmp->crl);

      if (!ok)

        goto done;

      count++;

    }

  }

  ok = count != 0;

 done:

  if (count == 0)

    X509error(ERR_R_PEM_LIB);

  if (inf != NULL)

    sk_X509_INFO_pop_free(inf, X509_INFO_free);

  if (in != NULL)

    BIO_free(in);

  return (ok);

}