89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
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/* $OpenBSD: xmalloc.c,v 1.9 2015/11/17 18:25:02 tobias Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Versions of malloc and friends that check their results, and never return
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* failure (they call fatal if they encounter an error).
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "xmalloc.h"
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void *
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xmalloc(size_t size)
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{
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void *ptr;
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if (size == 0)
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errx(2, "xmalloc: zero size");
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ptr = malloc(size);
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if (ptr == NULL)
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err(2, "xmalloc: allocating %zu bytes", size);
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return ptr;
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}
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void *
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xcalloc(size_t nmemb, size_t size)
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{
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void *ptr;
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ptr = calloc(nmemb, size);
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if (ptr == NULL)
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err(2, "xcalloc: allocating %zu * %zu bytes", nmemb, size);
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return ptr;
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}
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void *
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xreallocarray(void *ptr, size_t nmemb, size_t size)
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{
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void *new_ptr;
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new_ptr = reallocarray(ptr, nmemb, size);
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if (new_ptr == NULL)
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err(2, "xreallocarray: allocating %zu * %zu bytes",
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nmemb, size);
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return new_ptr;
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}
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char *
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xstrdup(const char *str)
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{
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char *cp;
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if ((cp = strdup(str)) == NULL)
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err(2, "xstrdup");
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return cp;
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}
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int
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xasprintf(char **ret, const char *fmt, ...)
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{
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va_list ap;
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int i;
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va_start(ap, fmt);
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i = vasprintf(ret, fmt, ap);
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va_end(ap);
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if (i < 0 || *ret == NULL)
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err(2, "xasprintf");
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return i;
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}
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