1 /*
2 * mem.c - memory allocation checkers
3 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19 #include "aconfig.h"
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <errno.h>
25 #include "die.h"
26 #include "mem.h"
27
check(void * p)28 static void check(void *p)
29 {
30 if (!p)
31 fatal_error("out of memory");
32 }
33
ccalloc(size_t n,size_t size)34 void *ccalloc(size_t n, size_t size)
35 {
36 void *mem = calloc(n, size);
37 if (n && size)
38 check(mem);
39 return mem;
40 }
41
crealloc(void * ptr,size_t new_size)42 void *crealloc(void *ptr, size_t new_size)
43 {
44 ptr = realloc(ptr, new_size);
45 if (new_size)
46 check(ptr);
47 return ptr;
48 }
49
cstrdup(const char * s)50 char *cstrdup(const char *s)
51 {
52 char *str = strdup(s);
53 check(str);
54 return str;
55 }
56
casprintf(const char * fmt,...)57 char *casprintf(const char *fmt, ...)
58 {
59 va_list ap;
60 char *str;
61
62 va_start(ap, fmt);
63 if (vasprintf(&str, fmt, ap) < 0)
64 check(NULL);
65 va_end(ap);
66 return str;
67 }
68