/* $NetBSD: xmalloc.c,v 1.1.1.1 2016/01/10 21:36:19 christos Exp $ */ /* xmalloc.c -- malloc with out of memory checking Copyright (C) 1990-1999, 2000 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 #endif #include #if STDC_HEADERS # include #else void *calloc (); void *malloc (); void *realloc (); void free (); #endif #if ENABLE_NLS # include # define _(Text) gettext (Text) #else # define textdomain(Domain) # define _(Text) Text #endif #define N_(Text) Text #include "error.h" #include "xalloc.h" #ifndef EXIT_FAILURE # define EXIT_FAILURE 1 #endif #ifndef HAVE_DONE_WORKING_MALLOC_CHECK "you must run the autoconf test for a properly working malloc -- see malloc.m4" #endif #ifndef HAVE_DONE_WORKING_REALLOC_CHECK "you must run the autoconf test for a properly working realloc --see realloc.m4" #endif /* Exit value when the requested amount of memory is not available. The caller may set it to some other value. */ int xalloc_exit_failure = EXIT_FAILURE; /* If non NULL, call this function when memory is exhausted. */ void (*xalloc_fail_func) PARAMS ((void)) = 0; /* If XALLOC_FAIL_FUNC is NULL, or does return, display this message before exiting when memory is exhausted. Goes through gettext. */ char const xalloc_msg_memory_exhausted[] = N_("memory exhausted"); void xalloc_die (void) { if (xalloc_fail_func) (*xalloc_fail_func) (); error (xalloc_exit_failure, 0, "%s", _(xalloc_msg_memory_exhausted)); /* The `noreturn' cannot be given to error, since it may return if its first argument is 0. To help compilers understand the xalloc_die does terminate, call exit. */ exit (EXIT_FAILURE); } /* Allocate N bytes of memory dynamically, with error checking. */ void * xmalloc (size_t n) { void *p; p = malloc (n); if (p == 0) xalloc_die (); return p; } /* Change the size of an allocated block of memory P to N bytes, with error checking. */ void * xrealloc (void *p, size_t n) { p = realloc (p, n); if (p == 0) xalloc_die (); return p; } /* Allocate memory for N elements of S bytes, with error checking. */ void * xcalloc (size_t n, size_t s) { void *p; p = calloc (n, s); if (p == 0) xalloc_die (); return p; }