usr/src/cmd/lvm/rpc.metamedd/med_mem.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 #pragma ident   "%Z%%M% %I%     %E% SMI"
  24
  25 /*
  26  * Copyright (c) 1994, 2000 by Sun Microsystems, Inc.
  27  * All rights reserved.
  28  */
  29
  30 #include "med_local.h"
  31
  32 /*
  33  * free
  34  */
  35 void
  36 Free(
  37         void    *p
  38 )
  39 {
  40         free(p);
  41 }
  42
  43 /*
  44  * malloc
  45  */
  46 void *
  47 Malloc(
  48         size_t  s
  49 )
  50 {
  51         void *mem;
  52
  53         if ((mem = malloc(s)) == NULL) {
  54                 med_perror("");
  55                 med_exit(1);
  56         }
  57         return (mem);
  58 }
  59
  60 /*
  61  * zalloc
  62  */
  63 void *
  64 Zalloc(
  65         size_t  s
  66 )
  67 {
  68         return (memset(Malloc(s), 0, s));
  69 }
  70
  71 /*
  72  * realloc
  73  */
  74 void *
  75 Realloc(
  76         void    *p,
  77         size_t  s
  78 )
  79 {
  80         if ((p = realloc(p, s)) == NULL) {
  81                 med_perror("");
  82                 med_exit(1);
  83         }
  84         return (p);
  85 }
  86
  87 /*
  88  * calloc
  89  */
  90 void *
  91 Calloc(
  92         size_t  n,
  93         size_t  s
  94 )
  95 {
  96         unsigned long total;
  97
  98         if (n == 0 || s == 0) {
  99                 total = 0;
 100         } else {
 101                 total = (unsigned long)n * s;
 102                 /* check for overflow */
 103                 if (total / n != s)
 104                         return (NULL);
 105         }
 106         return (Zalloc(total));
 107 }
 108
 109 /*
 110  * strdup
 111  */
 112 char *
 113 Strdup(
 114         char    *p
 115 )
 116 {
 117         if ((p = strdup(p)) == NULL) {
 118                 med_perror("");
 119                 med_exit(1);
 120         }
 121         return (p);
 122 }