freebsd-skq/usr.bin/dc/mem.c
gabor bc4e1f6f87 Replace GNU bc/dc with BSDL versions ported from OpenBSD. They have a good
compatibility level with the GNU counterparts and have shown to be mature
enough. For now, the GNU versions aren't removed from the tree, just detached
from the build.

Sponsored by:		Google Summer of Code 2008
Portbuild run by:	erwin
Approved by:		delphij
2010-01-20 21:30:52 +00:00

111 lines
1.9 KiB
C

/* $OpenBSD: mem.c,v 1.5 2009/10/27 23:59:37 deraadt Exp $ */
/*
* Copyright (c) 2003, Otto Moerbeek <otto@drijf.net>
*
* 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>
__FBSDID("$FreeBSD$");
#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 *
brealloc(void *p, size_t sz)
{
void *q;
q = realloc(p, sz);
if (q == NULL)
err(1, NULL);
return (q);
}
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());
}