1 /* $NetBSD: make_malloc.c,v 1.10 2012/06/20 17:46:28 sjg Exp $ */
2
3 /*-
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifdef MAKE_NATIVE
30 #include <sys/cdefs.h>
31 __RCSID("$NetBSD: make_malloc.c,v 1.10 2012/06/20 17:46:28 sjg Exp $");
32 #endif
33
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <errno.h>
38
39 #include "make.h"
40
41 #ifndef USE_EMALLOC
42 static void enomem(void) MAKE_ATTR_DEAD;
43
44 /*
45 * enomem --
46 * die when out of memory.
47 */
48 static void
enomem(void)49 enomem(void)
50 {
51 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM));
52 exit(2);
53 }
54
55 /*
56 * bmake_malloc --
57 * malloc, but die on error.
58 */
59 void *
bmake_malloc(size_t len)60 bmake_malloc(size_t len)
61 {
62 void *p;
63
64 if ((p = malloc(len)) == NULL)
65 enomem();
66 return(p);
67 }
68
69 /*
70 * bmake_strdup --
71 * strdup, but die on error.
72 */
73 char *
bmake_strdup(const char * str)74 bmake_strdup(const char *str)
75 {
76 size_t len;
77 char *p;
78
79 len = strlen(str) + 1;
80 if ((p = malloc(len)) == NULL)
81 enomem();
82 return memcpy(p, str, len);
83 }
84
85 /*
86 * bmake_strndup --
87 * strndup, but die on error.
88 */
89 char *
bmake_strndup(const char * str,size_t max_len)90 bmake_strndup(const char *str, size_t max_len)
91 {
92 size_t len;
93 char *p;
94
95 if (str == NULL)
96 return NULL;
97
98 len = strlen(str);
99 if (len > max_len)
100 len = max_len;
101 p = bmake_malloc(len + 1);
102 memcpy(p, str, len);
103 p[len] = '\0';
104
105 return(p);
106 }
107
108 /*
109 * bmake_realloc --
110 * realloc, but die on error.
111 */
112 void *
bmake_realloc(void * ptr,size_t size)113 bmake_realloc(void *ptr, size_t size)
114 {
115 if ((ptr = realloc(ptr, size)) == NULL)
116 enomem();
117 return(ptr);
118 }
119 #endif
120