/*      $NetBSD: mem.c,v 1.2 2017/04/10 16:37:48 christos Exp $ */
/*      $OpenBSD: mem.c,v 1.7 2015/02/16 20:53:34 jca Exp $     */

/*
* Copyright (c) 2003, Otto Moerbeek <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: mem.c,v 1.2 2017/04/10 16:37:48 christos Exp $");

#include <openssl/err.h>

#include <err.h>
#include <stdlib.h>
#include <string.h>

#include "extern.h"

struct number *
new_number(void)
{
       struct number *n;

       n = bmalloc(sizeof(*n));
       n->scale = 0;
       n->number = BN_new();
       if (n->number == NULL)
               err(1, NULL);
       return n;
}

void
free_number(struct number *n)
{
       BN_free(n->number);
       free(n);
}

struct number *
dup_number(const struct number *a)
{
       struct number *n;

       n = bmalloc(sizeof(*n));
       n->scale = a->scale;
       n->number = BN_dup(a->number);
       bn_checkp(n->number);
       return n;
}

void *
bmalloc(size_t sz)
{
       void *p;

       p = malloc(sz);
       if (p == NULL)
               err(1, NULL);
       return p;
}

void *
breallocarray(void *p, size_t nmemb, size_t size)
{
       int ret = reallocarr(&p, nmemb, size);
       if (ret)
               errc(1, ret, NULL);
       return p;
}

char *
bstrdup(const char *p)
{
       char *q;

       q = strdup(p);
       if (q == NULL)
               err(1, NULL);
       return q;
}

void
bn_check(int x)                                         \
{
       if (x == 0)
               err(1, "big number failure %lx", ERR_get_error());
}

void
bn_checkp(const void *p)                                                \
{
       if (p == NULL)
               err(1, "allocation failure %lx", ERR_get_error());
}