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 #include "memory.h"
39
40 static void
memory_bailout(void)41 memory_bailout(void)
42 {
43 (void) fprintf(stderr, "Out of memory\n");
44 exit(1);
45 }
46
47 int
xasprintf(char ** s,const char * fmt,...)48 xasprintf(char **s, const char *fmt, ...)
49 {
50 va_list ap;
51 int ret;
52
53 va_start(ap, fmt);
54 ret = vasprintf(s, fmt, ap);
55 va_end(ap);
56 if (ret == -1)
57 memory_bailout();
58 return (ret);
59 }
60
61 void *
xmalloc(size_t size)62 xmalloc(size_t size)
63 {
64 void *mem;
65
66 if ((mem = malloc(size)) == NULL)
67 memory_bailout();
68
69 return (mem);
70 }
71
72 void *
xcalloc(size_t size)73 xcalloc(size_t size)
74 {
75 void *mem;
76
77 mem = xmalloc(size);
78 bzero(mem, size);
79
80 return (mem);
81 }
82
83 char *
xstrdup(const char * str)84 xstrdup(const char *str)
85 {
86 char *newstr;
87
88 if ((newstr = strdup(str)) == NULL)
89 memory_bailout();
90
91 return (newstr);
92 }
93
94 char *
xstrndup(char * str,size_t len)95 xstrndup(char *str, size_t len)
96 {
97 char *newstr;
98
99 if ((newstr = malloc(len + 1)) == NULL)
100 memory_bailout();
101
102 (void) strncpy(newstr, str, len);
103 newstr[len] = '\0';
104
105 return (newstr);
106 }
107
108 void *
xrealloc(void * ptr,size_t size)109 xrealloc(void *ptr, size_t size)
110 {
111 void *mem;
112
113 if ((mem = realloc(ptr, size)) == NULL)
114 memory_bailout();
115
116 return (mem);
117 }
118