/** * Memory handling * Library: joedog *  * Copyright (C) 2000, 2001, 2002 by * Jeffrey Fulmer - <jdfulmer@armstrong.com> * This file is distributed as part of Siege  * * 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.    * -- * */#include <config.h>#include <memory.h>#include <error.h>#include <string.h>char *xstrdup(const char *str){  char *dupe;#ifndef HAVE_STRDUP  int  i;#endif/*HAVE_STRDUP*/  if( !str )    joe_fatal("string has no value!");#ifdef HAVE_STRDUP  dupe = strdup( str );  if(dupe==NULL)    joe_fatal("xstrdup"); #else  i    = strlen( str );  dupe = malloc( i + 1 );  if(dupe==NULL)    joe_fatal("xstrdup");  memcpy(dupe, str, i + 1);#endif  return dupe; }/** * xrealloc    replaces realloc */void * xrealloc(void *object, size_t size){  void *tmp;  if( object )    tmp = realloc(object, size);  else    tmp = malloc(size);  if(tmp==NULL)    joe_fatal("Memory exhausted");  return tmp;} /** end xrealloc **//** * xmalloc     replaces malloc */void *xmalloc(size_t size){  void *tmp  =  malloc(size);  if(tmp==NULL)    joe_fatal("Memory exhausted");    return tmp;} /** end of xmalloc **//** * xcalloc     replaces calloc */void *xcalloc(size_t num, size_t size){  void *tmp  =  xmalloc(num * size);  memset(tmp, 0, (num * size));  return tmp;} /** end of xcalloc **/voidxfree(void *ptr){  if(ptr!=NULL){    free(ptr);  }  return;}