shadow/libmisc/alloc.c

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/*
* SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1996 - 1998, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2003 - 2006, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2008 , Nicolas François
* SPDX-FileCopyrightText: 2023 , Alejandro Colomar <alx@kernel.org>
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/* Replacements for malloc and strdup with error checking. Too trivial
to be worth copyrighting :-). I did that because a lot of code used
malloc and strdup without checking for NULL pointer, and I like some
message better than a core dump... --marekm
Yeh, but. Remember that bailing out might leave the system in some
bizarre state. You really want to put in error checking, then add
some back-out failure recovery code. -- jfh */
#include <config.h>
#ident "$Id$"
#include "alloc.h"
#include <errno.h>
#include <stddef.h>
#include <stdio.h>
#include "defines.h"
#include "prototypes.h"
#include "shadowlog.h"
extern inline void *xmalloc(size_t size);
extern inline void *xmallocarray(size_t nmemb, size_t size);
extern inline void *mallocarray(size_t nmemb, size_t size);
extern inline void *reallocarrayf(void *p, size_t nmemb, size_t size);
extern inline char *xstrdup(const char *str);
void *
xcalloc(size_t nmemb, size_t size)
{
void *p;
p = calloc(nmemb, size);
if (p == NULL)
goto x;
return p;
x:
fprintf(log_get_logfd(), _("%s: %s\n"),
log_get_progname(), strerror(errno));
exit(13);
}
void *
xreallocarray(void *p, size_t nmemb, size_t size)
{
p = reallocarrayf(p, nmemb, size);
if (p == NULL)
goto x;
return p;
x:
fprintf(log_get_logfd(), _("%s: %s\n"),
log_get_progname(), strerror(errno));
exit(13);
}