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Commit	Line	Data
	1	/* $KAME: vmbuf.c,v 1.11 2001/11/26 16:54:29 sakane Exp $ */
	2
	3	/*
	4	* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. Neither the name of the project nor the names of its contributors
	16	* may be used to endorse or promote products derived from this software
	17	* without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	29	* SUCH DAMAGE.
	30	*/
	31
	32	#define NONEED_DRM
	33	#include <sys/types.h>
	34	#include <sys/param.h>
	35
	36	#include <stdlib.h>
	37	#include <stdio.h>
	38	#include <string.h>
	39
	40	#include "var.h"
	41	#include "misc.h"
	42	#include "vmbuf.h"
	43	#include "debug.h"
	44	#include "gcmalloc.h"
	45
	46	vchar_t *
	47	vmalloc(size)
	48	size_t size;
	49	{
	50	vchar_t *var;
	51
	52	if ((var = (vchar_t )racoon_malloc(sizeof(var))) == NULL)
	53	return NULL;
	54
	55	var->l = size;
	56	var->v = (caddr_t)racoon_calloc(1, size);
	57	if (var->v == NULL) {
	58	(void)racoon_free(var);
	59	return NULL;
	60	}
	61
	62	return var;
	63	}
	64
	65	vchar_t *
	66	vrealloc(ptr, size)
	67	vchar_t *ptr;
	68	size_t size;
	69	{
	70	caddr_t v;
	71
	72	if (ptr != NULL) {
	73	if ((v = (caddr_t)racoon_realloc(ptr->v, size)) == NULL) {
	74	(void)vfree(ptr);
	75	return NULL;
	76	}
	77	memset(v + ptr->l, 0, size - ptr->l);
	78	ptr->v = v;
	79	ptr->l = size;
	80	} else {
	81	if ((ptr = vmalloc(size)) == NULL)
	82	return NULL;
	83	}
	84
	85	return ptr;
	86	}
	87
	88	void
	89	vfree(var)
	90	vchar_t *var;
	91	{
	92	if (var == NULL)
	93	return;
	94
	95	if (var->v)
	96	(void)racoon_free(var->v);
	97
	98	(void)racoon_free(var);
	99
	100	return;
	101	}
	102
	103	vchar_t *
	104	vdup(src)
	105	vchar_t *src;
	106	{
	107	vchar_t *new;
	108
	109	if ((new = vmalloc(src->l)) == NULL)
	110	return NULL;
	111
	112	memcpy(new->v, src->v, src->l);
	113
	114	return new;
	115	}