119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/* $KAME: vmbuf.c,v 1.11 2001/11/26 16:54:29 sakane Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: vmbuf.c,v 1.2 2003/07/12 09:37:13 itojun Exp $");
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#define NONEED_DRM
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#include <sys/types.h>
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#include <sys/param.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "var.h"
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#include "misc.h"
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#include "vmbuf.h"
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#include "debug.h"
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#include "gcmalloc.h"
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vchar_t *
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vmalloc(size)
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size_t size;
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{
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vchar_t *var;
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if ((var = (vchar_t *)racoon_malloc(sizeof(*var))) == NULL)
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return NULL;
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var->l = size;
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var->v = (caddr_t)racoon_calloc(1, size);
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if (var->v == NULL) {
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(void)racoon_free(var);
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return NULL;
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}
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return var;
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}
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vchar_t *
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vrealloc(ptr, size)
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vchar_t *ptr;
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size_t size;
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{
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caddr_t v;
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if (ptr != NULL) {
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if ((v = (caddr_t)racoon_realloc(ptr->v, size)) == NULL) {
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(void)vfree(ptr);
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return NULL;
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}
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memset(v + ptr->l, 0, size - ptr->l);
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ptr->v = v;
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ptr->l = size;
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} else {
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if ((ptr = vmalloc(size)) == NULL)
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return NULL;
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}
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return ptr;
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}
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void
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vfree(var)
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vchar_t *var;
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{
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if (var == NULL)
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return;
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if (var->v)
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(void)racoon_free(var->v);
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(void)racoon_free(var);
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return;
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}
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vchar_t *
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vdup(src)
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vchar_t *src;
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{
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vchar_t *new;
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if ((new = vmalloc(src->l)) == NULL)
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return NULL;
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memcpy(new->v, src->v, src->l);
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return new;
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}
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