1 3baa2617 2022-02-16 op /* $OpenBSD: xmalloc.c,v 1.4 2019/06/28 05:44:09 deraadt Exp $ */
3 3baa2617 2022-02-16 op * Author: Tatu Ylonen <ylo@cs.hut.fi>
4 3baa2617 2022-02-16 op * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 3baa2617 2022-02-16 op * All rights reserved
6 3baa2617 2022-02-16 op * Versions of malloc and friends that check their results, and never return
7 3baa2617 2022-02-16 op * failure (they call fatal if they encounter an error).
9 3baa2617 2022-02-16 op * As far as I am concerned, the code I have written for this software
10 3baa2617 2022-02-16 op * can be used freely for any purpose. Any derived versions of this
11 3baa2617 2022-02-16 op * software must be clearly marked as such, and if the derived work is
12 3baa2617 2022-02-16 op * incompatible with the protocol description in the RFC file, it must be
13 3baa2617 2022-02-16 op * called by a name other than "ssh" or "Secure Shell".
16 3baa2617 2022-02-16 op #include <stdarg.h>
17 3baa2617 2022-02-16 op #include <stdint.h>
18 3baa2617 2022-02-16 op #include <stdio.h>
19 3baa2617 2022-02-16 op #include <stdlib.h>
20 3baa2617 2022-02-16 op #include <string.h>
21 3baa2617 2022-02-16 op #include <syslog.h>
23 3baa2617 2022-02-16 op #include "log.h"
24 3baa2617 2022-02-16 op #include "xmalloc.h"
27 3baa2617 2022-02-16 op xmalloc(size_t size)
31 3baa2617 2022-02-16 op if (size == 0)
32 3baa2617 2022-02-16 op fatal("xmalloc: zero size");
33 3baa2617 2022-02-16 op ptr = malloc(size);
34 3baa2617 2022-02-16 op if (ptr == NULL)
35 3baa2617 2022-02-16 op fatal("xmalloc: allocating %zu bytes", size);
40 3baa2617 2022-02-16 op xcalloc(size_t nmemb, size_t size)
44 3baa2617 2022-02-16 op if (size == 0 || nmemb == 0)
45 3baa2617 2022-02-16 op fatal("xcalloc: zero size");
46 3baa2617 2022-02-16 op ptr = calloc(nmemb, size);
47 3baa2617 2022-02-16 op if (ptr == NULL)
48 3baa2617 2022-02-16 op fatal("xcalloc: allocating %zu * %zu bytes", nmemb, size);
53 3baa2617 2022-02-16 op xreallocarray(void *ptr, size_t nmemb, size_t size)
55 3baa2617 2022-02-16 op void *new_ptr;
57 3baa2617 2022-02-16 op new_ptr = reallocarray(ptr, nmemb, size);
58 3baa2617 2022-02-16 op if (new_ptr == NULL)
59 3baa2617 2022-02-16 op fatal("xreallocarray: allocating %zu * %zu bytes",
61 3baa2617 2022-02-16 op return new_ptr;
65 3baa2617 2022-02-16 op xrecallocarray(void *ptr, size_t oldnmemb, size_t nmemb, size_t size)
67 3baa2617 2022-02-16 op void *new_ptr;
69 3baa2617 2022-02-16 op new_ptr = recallocarray(ptr, oldnmemb, nmemb, size);
70 3baa2617 2022-02-16 op if (new_ptr == NULL)
71 3baa2617 2022-02-16 op fatal("xrecallocarray: allocating %zu * %zu bytes",
73 3baa2617 2022-02-16 op return new_ptr;
77 3baa2617 2022-02-16 op xstrdup(const char *str)
81 3baa2617 2022-02-16 op if ((cp = strdup(str)) == NULL)
82 3baa2617 2022-02-16 op fatal("xstrdup");
87 3baa2617 2022-02-16 op xasprintf(char **ret, const char *fmt, ...)
92 3baa2617 2022-02-16 op va_start(ap, fmt);
93 3baa2617 2022-02-16 op i = vasprintf(ret, fmt, ap);
97 3baa2617 2022-02-16 op fatal("xasprintf");