1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* clients/ksu/xmalloc.c - Exit-on-failure allocation wrappers */
3 /*
4 * Copyright 1999 by the Massachusetts Institute of Technology.
5 * All Rights Reserved.
6 *
7 * Export of this software from the United States of America may
8 * require a specific license from the United States Government.
9 * It is the responsibility of any person or organization contemplating
10 * export to obtain such a license before exporting.
11 *
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of M.I.T. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. Furthermore if you modify this software you must label
20 * your software as modified software and not distribute it in such a
21 * fashion that it might be confused with the original M.I.T. software.
22 * M.I.T. makes no representations about the suitability of
23 * this software for any purpose. It is provided "as is" without express
24 * or implied warranty.
25 */
26
27 #include "k5-platform.h"
28 #include "ksu.h"
29
xmalloc(size_t sz)30 void *xmalloc (size_t sz)
31 {
32 void *ret = malloc (sz);
33 if (ret == 0 && sz != 0) {
34 perror (prog_name);
35 exit (1);
36 }
37 return ret;
38 }
39
xrealloc(void * old,size_t newsz)40 void *xrealloc (void *old, size_t newsz)
41 {
42 void *ret = realloc (old, newsz);
43 if (ret == 0 && newsz != 0) {
44 perror (prog_name);
45 exit (1);
46 }
47 return ret;
48 }
49
xcalloc(size_t nelts,size_t eltsz)50 void *xcalloc (size_t nelts, size_t eltsz)
51 {
52 void *ret = calloc (nelts, eltsz);
53 if (ret == 0 && nelts != 0 && eltsz != 0) {
54 perror (prog_name);
55 exit (1);
56 }
57 return ret;
58 }
59
xstrdup(const char * src)60 char *xstrdup (const char *src)
61 {
62 size_t len = strlen (src) + 1;
63 char *dst = xmalloc (len);
64 memcpy (dst, src, len);
65 return dst;
66 }
67
xasprintf(const char * format,...)68 char *xasprintf (const char *format, ...)
69 {
70 char *out;
71 va_list args;
72
73 va_start (args, format);
74 if (vasprintf(&out, format, args) < 0) {
75 perror (prog_name);
76 exit (1);
77 }
78 va_end(args);
79 return out;
80 }
81