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 46vchar_t * 47vmalloc(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 65vchar_t * 66vrealloc(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 88void 89vfree(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 103vchar_t * 104vdup(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} 116