1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* Copyright 2004-2005 Timo Hirvonen
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <xmalloc.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
extern char *program_name;
void malloc_fail(void)
{
fprintf(stderr, "%s: could not allocate memory: %s\n", program_name, strerror(errno));
exit(42);
}
char *xstrndup(const char *str, size_t n)
{
int len;
char *s;
len = strlen(str);
if (n > len)
n = len;
s = malloc(n + 1);
if (unlikely(s == NULL))
malloc_fail();
memcpy(s, str, n);
s[n] = 0;
return s;
}
|
