/* vi: set sw=4 ts=4: *//* * bitops.c --- Bitmap frobbing code.  See bitops.h for the inlined *	routines. * * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Public * License. * %End-Header% */#include <stdio.h>#if HAVE_SYS_TYPES_H#include <sys/types.h>#endif#include "ext2_fs.h"#include "ext2fs.h"#ifndef _EXT2_HAVE_ASM_BITOPS_/* * For the benefit of those who are trying to port Linux to another * architecture, here are some C-language equivalents.  You should * recode these in the native assmebly language, if at all possible. * * C language equivalents written by Theodore Ts'o, 9/26/92. * Modified by Pete A. Zaitcev 7/14/95 to be portable to big endian * systems, as well as non-32 bit systems. */int ext2fs_set_bit(unsigned int nr,void * addr){	int		mask, retval;	unsigned char	*ADDR = (unsigned char *) addr;	ADDR += nr >> 3;	mask = 1 << (nr & 0x07);	retval = mask & *ADDR;	*ADDR |= mask;	return retval;}int ext2fs_clear_bit(unsigned int nr, void * addr){	int		mask, retval;	unsigned char	*ADDR = (unsigned char *) addr;	ADDR += nr >> 3;	mask = 1 << (nr & 0x07);	retval = mask & *ADDR;	*ADDR &= ~mask;	return retval;}int ext2fs_test_bit(unsigned int nr, const void * addr){	int			mask;	const unsigned char	*ADDR = (const unsigned char *) addr;	ADDR += nr >> 3;	mask = 1 << (nr & 0x07);	return (mask & *ADDR);}#endif	/* !_EXT2_HAVE_ASM_BITOPS_ */void ext2fs_warn_bitmap(errcode_t errcode, unsigned long arg,			const char *description){#ifndef OMIT_COM_ERR	if (description)		bb_error_msg("#%lu for %s", arg, description);	else		bb_error_msg("#%lu", arg);#endif}void ext2fs_warn_bitmap2(ext2fs_generic_bitmap bitmap,			    int code, unsigned long arg){#ifndef OMIT_COM_ERR	if (bitmap->description)		bb_error_msg("#%lu for %s", arg, bitmap->description);	else		bb_error_msg("#%lu", arg);#endif}