112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
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/* $NetBSD: ext2fs_bswap.c,v 1.1 1997/10/09 15:42:49 bouyer Exp $ */
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/*
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* Copyright (c) 1997 Manuel Bouyer.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <ufs/ext2fs/ext2fs.h>
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#include <ufs/ext2fs/ext2fs_dinode.h>
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/* These functions are only needed if native byte order is not big endian */
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#if BYTE_ORDER == BIG_ENDIAN
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void
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e2fs_sb_bswap(old, new)
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struct ext2fs *old, *new;
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{
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/* preserve unused fields */
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memcpy(new, old, sizeof(struct ext2fs));
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new->e2fs_icount = bswap32(old->e2fs_icount);
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new->e2fs_bcount = bswap32(old->e2fs_bcount);
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new->e2fs_rbcount = bswap32(old->e2fs_rbcount);
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new->e2fs_fbcount = bswap32(old->e2fs_fbcount);
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new->e2fs_ficount = bswap32(old->e2fs_ficount);
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new->e2fs_first_dblock = bswap32(old->e2fs_first_dblock);
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new->e2fs_log_bsize = bswap32(old->e2fs_log_bsize);
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new->e2fs_fsize = bswap32(old->e2fs_fsize);
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new->e2fs_bpg = bswap32(old->e2fs_bpg);
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new->e2fs_fpg = bswap32(old->e2fs_fpg);
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new->e2fs_ipg = bswap32(old->e2fs_ipg);
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new->e2fs_mtime = bswap32(old->e2fs_mtime);
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new->e2fs_wtime = bswap32(old->e2fs_wtime);
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new->e2fs_lastfsck = bswap32(old->e2fs_lastfsck);
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new->e2fs_fsckintv = bswap32(old->e2fs_fsckintv);
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new->e2fs_creator = bswap32(old->e2fs_creator);
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new->e2fs_rev = bswap32(old->e2fs_rev);
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new->e2fs_mnt_count = bswap16(old->e2fs_mnt_count);
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new->e2fs_max_mnt_count = bswap16(old->e2fs_max_mnt_count);
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new->e2fs_magic = bswap16(old->e2fs_magic);
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new->e2fs_state = bswap16(old->e2fs_state);
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new->e2fs_beh = bswap16(old->e2fs_beh);
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new->e2fs_ruid = bswap16(old->e2fs_ruid);
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new->e2fs_rgid = bswap16(old->e2fs_rgid);
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}
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void e2fs_cg_bswap(old, new, size)
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struct ext2_gd *old, *new;
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int size;
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{
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int i;
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for (i=0; i < (size / sizeof(struct ext2_gd)); i++) {
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new[i].ext2bgd_b_bitmap = bswap32(old[i].ext2bgd_b_bitmap);
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new[i].ext2bgd_i_bitmap = bswap32(old[i].ext2bgd_i_bitmap);
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new[i].ext2bgd_i_tables = bswap32(old[i].ext2bgd_i_tables);
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new[i].ext2bgd_nbfree = bswap16(old[i].ext2bgd_nbfree);
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new[i].ext2bgd_nifree = bswap16(old[i].ext2bgd_nifree);
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new[i].ext2bgd_ndirs = bswap16(old[i].ext2bgd_ndirs);
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}
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}
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void e2fs_i_bswap(old, new)
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struct ext2fs_dinode *old, *new;
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{
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new->e2di_mode = bswap16(old->e2di_mode);
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new->e2di_uid = bswap16(old->e2di_uid);
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new->e2di_gid = bswap16(old->e2di_gid);
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new->e2di_nlink = bswap16(old->e2di_nlink);
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new->e2di_size = bswap32(old->e2di_size);
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new->e2di_atime = bswap32(old->e2di_atime);
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new->e2di_ctime = bswap32(old->e2di_ctime);
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new->e2di_mtime = bswap32(old->e2di_mtime);
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new->e2di_dtime = bswap32(old->e2di_dtime);
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new->e2di_nblock = bswap32(old->e2di_nblock);
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new->e2di_flags = bswap32(old->e2di_flags);
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new->e2di_gen = bswap32(old->e2di_gen);
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new->e2di_facl = bswap32(old->e2di_facl);
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new->e2di_dacl = bswap32(old->e2di_dacl);
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new->e2di_faddr = bswap32(old->e2di_faddr);
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bcopy(&old->e2di_blocks[0], &new->e2di_blocks[0],
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(NDADDR+NIADDR) * sizeof(int));
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}
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#endif
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