bin/csh/alloc.c

1 /* $OpenBSD: alloc.c,v 1.20 2018年09月18日 17:48:22 millert Exp $ */
2 /* $NetBSD: alloc.c,v 1.6 1995年03月21日 09:02:23 cgd Exp $ */
3
4 /*-
5 * Copyright (c) 1983, 1991, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/types.h>
34#include <unistd.h>
35#include <stdlib.h>
36#include <stdarg.h>
37#include <string.h>
38
39#include "csh.h"
40#include "extern.h"
41
42 void *
43 xmalloc(size_t n)
44{
45 void *ptr;
46
47 if ((ptr = malloc(n)) == NULL) {
48 child++;
49 stderror(ERR_NOMEM);
50 }
51 return (ptr);
52}
53
54 void *
55 xreallocarray(void * p, size_t c, size_t n)
56{
57 void *ptr;
58
59 if ((ptr = reallocarray(p, c, n)) == NULL) {
60 child++;
61 stderror(ERR_NOMEM);
62 }
63 return (ptr);
64}
65
66 void *
67 xcalloc(size_t s, size_t n)
68{
69 void *ptr;
70
71 if ((ptr = calloc(s, n)) == NULL) {
72 child++;
73 stderror(ERR_NOMEM);
74 }
75
76 return (ptr);
77}
78
79 char *
80 xstrdup(const char *s)
81{
82 char *n;
83
84 if (s == NULL)
85 s = "";
86 if ((n = strdup(s)) == NULL) {
87 child++;
88 stderror(ERR_NOMEM);
89 }
90 return (n);
91}
92