/* $OpenBSD: cryptlib.c,v 1.45 2019/01/26 11:30:32 deraadt Exp $ */

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

 * Copyright (c) 1998-2006 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.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

/* 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.]

 */

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

 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.

 * ECDH support in OpenSSL originally developed by

 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.

 */

#include <pthread.h>

#include <stdarg.h>

#include <stdio.h>

#include <string.h>

#include <syslog.h>

#include <unistd.h>

#include <openssl/opensslconf.h>

#include <openssl/crypto.h>

static void (*locking_callback)(int mode, int type,

    const char *file, int line) = NULL;

static int (*add_lock_callback)(int *pointer, int amount,

    int type, const char *file, int line) = NULL;

int

CRYPTO_num_locks(void)

{

  return 1;

}

unsigned long

(*CRYPTO_get_id_callback(void))(void)

{

  return NULL;

}

void

CRYPTO_set_id_callback(unsigned long (*func)(void))

{

  return;

}

unsigned long

CRYPTO_thread_id(void)

{

  return (unsigned long)pthread_self();

}

void

CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num,

    const char *file, int line))

{

  locking_callback = func;

}

void

(*CRYPTO_get_locking_callback(void))(int mode, int lock_num,

  const char *file, int line)

{

  return locking_callback;

}

void

CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num,

  const char *file, int line))

{

  add_lock_callback = func;

}

int

(*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int type,

    const char *file, int line)

{

  return add_lock_callback;

}

const char *

CRYPTO_get_lock_name(int lock_num)

{

  return "";

}

struct CRYPTO_dynlock_value *

CRYPTO_get_dynlock_value(int i)

{

  return NULL;

}

int CRYPTO_get_new_dynlockid(void)

{

  return 0;

}

void

CRYPTO_destroy_dynlockid(int i)

{

  return;

}

int CRYPTO_get_new_lockid(char *name)

{

  return 0;

}

int

CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))

{

  return 1;

}

void

(*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)

{

  return NULL;

}

void

CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)

{

  return;

}

void

CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)

{

  return;

}

void

CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(

    *dyn_create_function)(const char *file, int line))

{

  return;

}

void

CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(

    int mode, struct CRYPTO_dynlock_value *l, const char *file, int line))

{

  return;

}

void

CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(

    struct CRYPTO_dynlock_value *l, const char *file, int line))

{

  return;

}

struct CRYPTO_dynlock_value *

(*CRYPTO_get_dynlock_create_callback(void))(

    const char *file, int line)

{

  return NULL;

}

void

(*CRYPTO_get_dynlock_lock_callback(void))(int mode,

    struct CRYPTO_dynlock_value *l, const char *file, int line)

{

  return NULL;

}

void

(*CRYPTO_get_dynlock_destroy_callback(void))(

    struct CRYPTO_dynlock_value *l, const char *file, int line)

{

  return NULL;

}

void

CRYPTO_THREADID_current(CRYPTO_THREADID *id)

{

  memset(id, 0, sizeof(*id));

  id->val = (unsigned long)pthread_self();

}

int

CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)

{

  return memcmp(a, b, sizeof(*a));

}

void

CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)

{

  memcpy(dest, src, sizeof(*src));

}

unsigned long

CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)

{

  return id->val;

}

#if defined(__i386)   || defined(__i386__)   || defined(_M_IX86) || \

  defined(__INTEL__) || \

  defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)

uint64_t OPENSSL_ia32cap_P;

uint64_t

OPENSSL_cpu_caps(void)

{

  return OPENSSL_ia32cap_P;

}

#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM)

#define OPENSSL_CPUID_SETUP

void

OPENSSL_cpuid_setup(void)

{

  static int trigger = 0;

  uint64_t OPENSSL_ia32_cpuid(void);

  if (trigger)

    return;

  trigger = 1;

  OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid();

}

#endif

#else

uint64_t

OPENSSL_cpu_caps(void)

{

  return 0;

}

#endif

#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)

void

OPENSSL_cpuid_setup(void)

{

}

#endif

static void

OPENSSL_showfatal(const char *fmta, ...)

{

  struct syslog_data sdata = SYSLOG_DATA_INIT;

  va_list ap;

  va_start(ap, fmta);

  vsyslog_r(LOG_INFO|LOG_LOCAL2, &sdata, fmta, ap);

  va_end(ap);

}

void

OpenSSLDie(const char *file, int line, const char *assertion)

{

  OPENSSL_showfatal(

      "uid %u cmd %s %s(%d): OpenSSL internal error, assertion failed: %s\n",

      getuid(), getprogname(), file, line, assertion);

  _exit(1);

}

int

CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)

{

  size_t i;

  const unsigned char *a = in_a;

  const unsigned char *b = in_b;

  unsigned char x = 0;

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

    x |= a[i] ^ b[i];

  return x;

}