/* * (C) Copyright 2001 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it * * See file CREDITS for list of people who contributed to this * project. * * 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., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */#include <stdio.h>#include <stdlib.h>#include <unistd.h>#define	__ASSEMBLY__	/* Dirty trick to get only #defines */#include <config.h>#undef	__ASSEMBLY__#if defined(CFG_ENV_IS_IN_FLASH)# ifndef  CFG_ENV_ADDR#  define CFG_ENV_ADDR	(CFG_FLASH_BASE + CFG_ENV_OFFSET)# endif# ifndef  CFG_ENV_OFFSET#  define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)# endif# ifndef  CFG_ENV_SIZE#  define CFG_ENV_SIZE	CFG_ENV_SECT_SIZE# endif# if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \     (CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)#  define ENV_IS_EMBEDDED# endif#endif	/* CFG_ENV_IS_IN_FLASH */extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);#ifdef	ENV_IS_EMBEDDEDextern unsigned int env_size ;extern unsigned char environment ;extern unsigned char env_data ;#endif	/* ENV_IS_EMBEDDED */int main (int argc, char **argv){#ifdef	ENV_IS_EMBEDDED    int crc ;    unsigned char 	*envptr 	= &environment,			*dataptr 	= &env_data;    unsigned int	datasize 	= env_size - (dataptr - envptr) ;    crc = crc32(0, dataptr, datasize) ;    /* Check if verbose mode is activated passing a parameter to the program */    if (argc > 1) {	printf("CRC32 from offset %08X to %08X of environment = %08X\n",	    (unsigned int)(dataptr - envptr),	    (unsigned int)(dataptr - envptr) + datasize,	    crc);    } else {	printf("0x%08X\n", crc);    }#else	printf("0\n");#endif    return EXIT_SUCCESS;}