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 #if HAVE_NBTOOL_CONFIG_H
34 # include "nbtool_config.h"
35 #endif
36
37 #include <sys/types.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <strings.h>
42 #include "memory.h"
43
44 static void __dead
memory_bailout(void)45 memory_bailout(void)
46 {
47 (void) fprintf(stderr, "Out of memory\n");
48 exit(1);
49 }
50
51 void *
xmalloc(size_t size)52 xmalloc(size_t size)
53 {
54 void *mem;
55
56 if ((mem = malloc(size)) == NULL)
57 memory_bailout();
58
59 return (mem);
60 }
61
62 void *
xcalloc(size_t size)63 xcalloc(size_t size)
64 {
65 void *mem;
66
67 mem = xmalloc(size);
68 bzero(mem, size);
69
70 return (mem);
71 }
72
73 char *
xstrdup(const char * str)74 xstrdup(const char *str)
75 {
76 char *newstr;
77
78 if ((newstr = strdup(str)) == NULL)
79 memory_bailout();
80
81 return (newstr);
82 }
83
84 char *
xstrndup(char * str,size_t len)85 xstrndup(char *str, size_t len)
86 {
87 char *newstr;
88
89 if ((newstr = malloc(len + 1)) == NULL)
90 memory_bailout();
91
92 (void) strncpy(newstr, str, len);
93 newstr[len] = '\0';
94
95 return (newstr);
96 }
97
98 void *
xrealloc(void * ptr,size_t size)99 xrealloc(void *ptr, size_t size)
100 {
101 void *mem;
102
103 if ((mem = realloc(ptr, size)) == NULL)
104 memory_bailout();
105
106 return (mem);
107 }
108