You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
2.6 KiB
130 lines
2.6 KiB
/* xmalloc.c -- malloc with out of memory checking
|
|
Copyright (C) 1990, 91, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#if HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#if __STDC__
|
|
# define VOID void
|
|
#else
|
|
# define VOID char
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
|
|
#if STDC_HEADERS
|
|
# include <stdlib.h>
|
|
#else
|
|
VOID *calloc ();
|
|
VOID *malloc ();
|
|
VOID *realloc ();
|
|
void free ();
|
|
#endif
|
|
|
|
#if ENABLE_NLS
|
|
# include <libintl.h>
|
|
# define _(Text) gettext (Text)
|
|
#else
|
|
# define textdomain(Domain)
|
|
# define _(Text) Text
|
|
#endif
|
|
|
|
#include "error.h"
|
|
|
|
#ifndef EXIT_FAILURE
|
|
# define EXIT_FAILURE 1
|
|
#endif
|
|
|
|
/* Prototypes for functions defined here. */
|
|
#if defined (__STDC__) && __STDC__
|
|
static VOID *fixup_null_alloc (size_t n);
|
|
VOID *xmalloc (size_t n);
|
|
VOID *xcalloc (size_t n, size_t s);
|
|
VOID *xrealloc (VOID *p, size_t n);
|
|
#endif
|
|
|
|
|
|
/* Exit value when the requested amount of memory is not available.
|
|
The caller may set it to some other value. */
|
|
int xmalloc_exit_failure = EXIT_FAILURE;
|
|
|
|
#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT)
|
|
void error (int, int, const char *, ...);
|
|
#else
|
|
void error ();
|
|
#endif
|
|
|
|
static VOID *
|
|
fixup_null_alloc (n)
|
|
size_t n;
|
|
{
|
|
VOID *p;
|
|
|
|
p = 0;
|
|
if (n == 0)
|
|
p = malloc ((size_t) 1);
|
|
if (p == 0)
|
|
error (xmalloc_exit_failure, 0, _("Memory exhausted"));
|
|
return p;
|
|
}
|
|
|
|
/* Allocate N bytes of memory dynamically, with error checking. */
|
|
|
|
VOID *
|
|
xmalloc (n)
|
|
size_t n;
|
|
{
|
|
VOID *p;
|
|
|
|
p = malloc (n);
|
|
if (p == 0)
|
|
p = fixup_null_alloc (n);
|
|
return p;
|
|
}
|
|
|
|
/* Allocate memory for N elements of S bytes, with error checking. */
|
|
|
|
VOID *
|
|
xcalloc (n, s)
|
|
size_t n, s;
|
|
{
|
|
VOID *p;
|
|
|
|
p = calloc (n, s);
|
|
if (p == 0)
|
|
p = fixup_null_alloc (n);
|
|
return p;
|
|
}
|
|
|
|
/* Change the size of an allocated block of memory P to N bytes,
|
|
with error checking.
|
|
If P is NULL, run xmalloc. */
|
|
|
|
VOID *
|
|
xrealloc (p, n)
|
|
VOID *p;
|
|
size_t n;
|
|
{
|
|
if (p == 0)
|
|
return xmalloc (n);
|
|
p = realloc (p, n);
|
|
if (p == 0)
|
|
p = fixup_null_alloc (n);
|
|
return p;
|
|
}
|