usr/src/tools/ctf/common/memory.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  * Copyright 2001-2002 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * Routines for memory management
  31  */
  32
  33 #include <sys/types.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <strings.h>
  38
  39 static void
  40 memory_bailout(void)
  41 {
  42         (void) fprintf(stderr, "Out of memory\n");
  43         exit(1);
  44 }
  45
  46 void *
  47 xmalloc(size_t size)
  48 {
  49         void *mem;
  50
  51         if ((mem = malloc(size)) == NULL)
  52                 memory_bailout();
  53
  54         return (mem);
  55 }
  56
  57 void *
  58 xcalloc(size_t size)
  59 {
  60         void *mem;
  61
  62         mem = xmalloc(size);
  63         bzero(mem, size);
  64
  65         return (mem);
  66 }
  67
  68 char *
  69 xstrdup(const char *str)
  70 {
  71         char *newstr;
  72
  73         if ((newstr = strdup(str)) == NULL)
  74                 memory_bailout();
  75
  76         return (newstr);
  77 }
  78
  79 char *
  80 xstrndup(char *str, size_t len)
  81 {
  82         char *newstr;
  83
  84         if ((newstr = malloc(len + 1)) == NULL)
  85                 memory_bailout();
  86
  87         (void) strncpy(newstr, str, len);
  88         newstr[len] = '\0';
  89
  90         return (newstr);
  91 }
  92
  93 void *
  94 xrealloc(void *ptr, size_t size)
  95 {
  96         void *mem;
  97
  98         if ((mem = realloc(ptr, size)) == NULL)
  99                 memory_bailout();
 100
 101         return (mem);
 102 }