/*

  chronyd/chronyc - Programs for keeping computer clocks accurate.

 **********************************************************************

 * Copyright (C) Miroslav Lichvar  2014, 2017

 * 

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 * 

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 * 

 **********************************************************************

  =======================================================================

  Utility functions for memory allocation.

  */

#include "config.h"

#include "logging.h"

#include "memory.h"

void *

Malloc(size_t size)

{

  void *r;

  r = malloc(size);

  if (!r && size)

    LOG_FATAL("Could not allocate memory");

  return r;

}

void *

Realloc(void *ptr, size_t size)

{

  void *r;

  r = realloc(ptr, size);

  if (!r && size)

    LOG_FATAL("Could not allocate memory");

  return r;

}

static size_t

get_array_size(size_t nmemb, size_t size)

{

  size_t array_size;

  array_size = nmemb * size;

  /* Check for overflow */

  if (nmemb > 0 && array_size / nmemb != size)

    LOG_FATAL("Could not allocate memory");

  return array_size;

}

void *

Malloc2(size_t nmemb, size_t size)

{

  return Malloc(get_array_size(nmemb, size));

}

void *

Realloc2(void *ptr, size_t nmemb, size_t size)

{

  return Realloc(ptr, get_array_size(nmemb, size));

}

char *

Strdup(const char *s)

{

  void *r;

  r = strdup(s);

  if (!r)

    LOG_FATAL("Could not allocate memory");

  return r;

}