xref: /freebsd/usr.bin/sort/mem.c (revision 3df058ffaf72b8715c9a5a6a4cbaf1eac1910e43)
1 /*-
2  * Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org>
3  * Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.com>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30 
31 #include <err.h>
32 #include <stdlib.h>
33 #include <string.h>
34 
35 #include "mem.h"
36 
37 /*
38  * malloc() wrapper.
39  */
40 void *
41 sort_malloc(size_t size)
42 {
43 	void *ptr;
44 
45 	if ((ptr = malloc(size)) == NULL)
46 		err(2, NULL);
47 	return (ptr);
48 }
49 
50 /*
51  * free() wrapper.
52  */
53 void
54 sort_free(const void *ptr)
55 {
56 
57 	if (ptr)
58 		free(__DECONST(void *, ptr));
59 }
60 
61 /*
62  * realloc() wrapper.
63  */
64 void *
65 sort_realloc(void *ptr, size_t size)
66 {
67 
68 	if ((ptr = realloc(ptr, size)) == NULL)
69 		err(2, NULL);
70 	return (ptr);
71 }
72 
73 char *
74 sort_strdup(const char *str)
75 {
76 	char *dup;
77 
78 	if ((dup = strdup(str)) == NULL)
79 		err(2, NULL);
80 	return (dup);
81 }
82