sbin/fsirand/fsirand.c

116 	struct fs *sblock;
133 	sblock = (struct fs *)&sbuf;
141 		if ((n = read(devfd, (void *)sblock, SBLOCKSIZE))!=SBLOCKSIZE) {
146 		if ((sblock->fs_magic == FS_UFS1_MAGIC ||
147 		     (sblock->fs_magic == FS_UFS2_MAGIC &&
148 		      sblock->fs_sblockloc == sblock_try[i])) &&
149 		    sblock->fs_bsize <= MAXBSIZE &&
150 		    sblock->fs_bsize >= (ssize_t)sizeof(struct fs))
158 	if (sblock->fs_magic == FS_UFS1_MAGIC &&
159 	    sblock->fs_old_inodefmt < FS_44INODEFMT) {
163 	if (!force && !printonly && sblock->fs_clean != 1) {
169 	sblock = (struct fs *)&sbuftmp;
170 	for (cg = 0; cg < (int)sblock->fs_ncg; cg++) {
171 		dblk = fsbtodb(sblock, cgsblock(sblock, cg));
175 		} else if ((n = write(devfd, (void *)sblock, SBLOCKSIZE)) != SBLOCKSIZE) {
181 		if (sblock->fs_magic != FS_UFS1_MAGIC &&
182 		    sblock->fs_magic != FS_UFS2_MAGIC) {
187 		if (sblock->fs_sbsize > SBLOCKSIZE) {
193 	sblock = (struct fs *)&sbuf;
196 	if (sblock->fs_magic == FS_UFS1_MAGIC)
197 		ibufsize = sizeof(struct ufs1_dinode) * sblock->fs_ipg;
199 		ibufsize = sizeof(struct ufs2_dinode) * sblock->fs_ipg;
203 	if (printonly && (sblock->fs_id[0] || sblock->fs_id[1])) {
204 		if (sblock->fs_id[0])
206 			    ctime((void *)&(sblock->fs_id[0])));
207 		(void)printf("fsid: %x %x\n", sblock->fs_id[0],
208 			    sblock->fs_id[1]);
213 		/* Randomize fs_id and write out new sblock and backups */
214 		sblock->fs_id[0] = (u_int32_t)time(NULL);
215 		sblock->fs_id[1] = random();
222 		if ((n = write(devfd, (void *)sblock, SBLOCKSIZE)) !=
230 	/* For each cylinder group, randomize inodes and update backup sblock */
231 	for (cg = 0, inumber = 0; cg < (int)sblock->fs_ncg; cg++) {
234 			dblk = fsbtodb(sblock, cgsblock(sblock, cg));
239 			} else if ((n = write(devfd, (void *)sblock,
249 		dblk = fsbtodb(sblock, ino_to_fsba(sblock, inumber));
259 		for (n = 0; n < (int)sblock->fs_ipg; n++, inumber++) {
260 			if (sblock->fs_magic == FS_UFS1_MAGIC)
268 					    sblock->fs_magic == FS_UFS1_MAGIC ?
270 				else if (sblock->fs_magic == FS_UFS1_MAGIC)