shadow/libmisc/xmalloc.c
Christian Göttsche c5090d91a1 Return void pointer from xmalloc
xmalloc is a wrapper around malloc(3), which bails out on OOM failures.
As such it returns raw memory and is used to allocated all kind of
types.
2022-08-06 11:27:56 -05:00

54 lines
1.4 KiB
C

/*
* 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-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 <stdio.h>
#include <errno.h>
#include "defines.h"
#include "prototypes.h"
#include "shadowlog.h"
/*@maynotreturn@*/ /*@only@*//*@out@*//*@notnull@*/void *xmalloc (size_t size)
{
void *ptr;
ptr = malloc (size);
if (NULL == ptr) {
(void) fprintf (log_get_logfd(),
_("%s: failed to allocate memory: %s\n"),
log_get_progname(), strerror (errno));
exit (13);
}
return ptr;
}
/*@maynotreturn@*/ /*@only@*//*@notnull@*/char *xstrdup (const char *str)
{
return strcpy (xmalloc (strlen (str) + 1), str);
}
void xfree(void *ap)
{
if (ap) {
free(ap);
}
}