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File: [local] / src / usr.bin / dc / mem.c (download)

Revision 1.5, Tue Oct 27 23:59:37 2009 UTC (14 years, 6 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5, OPENBSD_5_4_BASE, OPENBSD_5_4, OPENBSD_5_3_BASE, OPENBSD_5_3, OPENBSD_5_2_BASE, OPENBSD_5_2, OPENBSD_5_1_BASE, OPENBSD_5_1, OPENBSD_5_0_BASE, OPENBSD_5_0, OPENBSD_4_9_BASE, OPENBSD_4_9, OPENBSD_4_8_BASE, OPENBSD_4_8, OPENBSD_4_7_BASE, OPENBSD_4_7
Changes since 1.4: +1 -5 lines 

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable).  these days, people use source.  these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

/*	$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 <ssl/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());
}