1 b0a6bcf7 2022-09-13 op /* $OpenBSD: xmalloc.c,v 1.4 2019/06/28 05:44:09 deraadt Exp $ */
3 b0a6bcf7 2022-09-13 op * Author: Tatu Ylonen <ylo@cs.hut.fi>
4 b0a6bcf7 2022-09-13 op * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 b0a6bcf7 2022-09-13 op * All rights reserved
6 b0a6bcf7 2022-09-13 op * Versions of malloc and friends that check their results, and never return
7 b0a6bcf7 2022-09-13 op * failure (they call fatal if they encounter an error).
9 b0a6bcf7 2022-09-13 op * As far as I am concerned, the code I have written for this software
10 b0a6bcf7 2022-09-13 op * can be used freely for any purpose. Any derived versions of this
11 b0a6bcf7 2022-09-13 op * software must be clearly marked as such, and if the derived work is
12 b0a6bcf7 2022-09-13 op * incompatible with the protocol description in the RFC file, it must be
13 b0a6bcf7 2022-09-13 op * called by a name other than "ssh" or "Secure Shell".
16 b0a6bcf7 2022-09-13 op #include <stdarg.h>
17 b0a6bcf7 2022-09-13 op #include <stdint.h>
18 b0a6bcf7 2022-09-13 op #include <stdio.h>
19 b0a6bcf7 2022-09-13 op #include <stdlib.h>
20 b0a6bcf7 2022-09-13 op #include <string.h>
21 b0a6bcf7 2022-09-13 op #include <syslog.h>
23 b0a6bcf7 2022-09-13 op #include "log.h"
24 b0a6bcf7 2022-09-13 op #include "xmalloc.h"
27 b0a6bcf7 2022-09-13 op xmalloc(size_t size)
31 b0a6bcf7 2022-09-13 op if (size == 0)
32 b0a6bcf7 2022-09-13 op fatal("xmalloc: zero size");
33 b0a6bcf7 2022-09-13 op ptr = malloc(size);
34 b0a6bcf7 2022-09-13 op if (ptr == NULL)
35 b0a6bcf7 2022-09-13 op fatal("xmalloc: allocating %zu bytes", size);
40 b0a6bcf7 2022-09-13 op xcalloc(size_t nmemb, size_t size)
44 b0a6bcf7 2022-09-13 op if (size == 0 || nmemb == 0)
45 b0a6bcf7 2022-09-13 op fatal("xcalloc: zero size");
46 b0a6bcf7 2022-09-13 op ptr = calloc(nmemb, size);
47 b0a6bcf7 2022-09-13 op if (ptr == NULL)
48 b0a6bcf7 2022-09-13 op fatal("xcalloc: allocating %zu * %zu bytes", nmemb, size);
53 b0a6bcf7 2022-09-13 op xreallocarray(void *ptr, size_t nmemb, size_t size)
55 b0a6bcf7 2022-09-13 op void *new_ptr;
57 b0a6bcf7 2022-09-13 op new_ptr = reallocarray(ptr, nmemb, size);
58 b0a6bcf7 2022-09-13 op if (new_ptr == NULL)
59 b0a6bcf7 2022-09-13 op fatal("xreallocarray: allocating %zu * %zu bytes",
61 b0a6bcf7 2022-09-13 op return new_ptr;
65 b0a6bcf7 2022-09-13 op xrecallocarray(void *ptr, size_t oldnmemb, size_t nmemb, size_t size)
67 b0a6bcf7 2022-09-13 op void *new_ptr;
69 b0a6bcf7 2022-09-13 op new_ptr = recallocarray(ptr, oldnmemb, nmemb, size);
70 b0a6bcf7 2022-09-13 op if (new_ptr == NULL)
71 b0a6bcf7 2022-09-13 op fatal("xrecallocarray: allocating %zu * %zu bytes",
73 b0a6bcf7 2022-09-13 op return new_ptr;
77 b0a6bcf7 2022-09-13 op xstrdup(const char *str)
81 b0a6bcf7 2022-09-13 op if ((cp = strdup(str)) == NULL)
82 b0a6bcf7 2022-09-13 op fatal("xstrdup");
87 b0a6bcf7 2022-09-13 op xasprintf(char **ret, const char *fmt, ...)
92 b0a6bcf7 2022-09-13 op va_start(ap, fmt);
93 b0a6bcf7 2022-09-13 op i = vasprintf(ret, fmt, ap);
97 b0a6bcf7 2022-09-13 op fatal("xasprintf");