diff options
Diffstat (limited to 'sbin/clri')
| -rw-r--r-- | sbin/clri/Makefile | 1 | ||||
| -rw-r--r-- | sbin/clri/clri.c | 63 |
2 files changed, 28 insertions, 36 deletions
diff --git a/sbin/clri/Makefile b/sbin/clri/Makefile index 114f56382a18..5f8777f30391 100644 --- a/sbin/clri/Makefile +++ b/sbin/clri/Makefile @@ -4,6 +4,7 @@ PACKAGE=runtime PROG= clri MAN= clri.8 +LIBADD= ufs WARNS?= 2 .include <bsd.prog.mk> diff --git a/sbin/clri/clri.c b/sbin/clri/clri.c index 7745aa56d18f..3407297ceb6f 100644 --- a/sbin/clri/clri.c +++ b/sbin/clri/clri.c @@ -54,17 +54,14 @@ __FBSDID("$FreeBSD$"); #include <ufs/ffs/fs.h> #include <err.h> +#include <errno.h> #include <fcntl.h> +#include <libufs.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include <unistd.h> -/* - * Possible superblock locations ordered from most to least likely. - */ -static int sblock_try[] = SBLOCKSEARCH; - static void usage(void) { @@ -75,41 +72,35 @@ usage(void) int main(int argc, char *argv[]) { - struct fs *sbp; + struct fs *fs; struct ufs1_dinode *dp1; struct ufs2_dinode *dp2; char *ibuf[MAXBSIZE]; long generation, bsize; off_t offset; - int i, fd, inonum; - char *fs, sblock[SBLOCKSIZE]; + int fd, ret, inonum; + char *fsname; void *v = ibuf; if (argc < 3) usage(); - fs = *++argv; - sbp = NULL; + fsname = *++argv; /* get the superblock. */ - if ((fd = open(fs, O_RDWR, 0)) < 0) - err(1, "%s", fs); - for (i = 0; sblock_try[i] != -1; i++) { - if (lseek(fd, (off_t)(sblock_try[i]), SEEK_SET) < 0) - err(1, "%s", fs); - if (read(fd, sblock, sizeof(sblock)) != sizeof(sblock)) - errx(1, "%s: can't read superblock", fs); - sbp = (struct fs *)sblock; - if ((sbp->fs_magic == FS_UFS1_MAGIC || - (sbp->fs_magic == FS_UFS2_MAGIC && - sbp->fs_sblockloc == sblock_try[i])) && - sbp->fs_bsize <= MAXBSIZE && - sbp->fs_bsize >= (int)sizeof(struct fs)) - break; + if ((fd = open(fsname, O_RDWR, 0)) < 0) + err(1, "%s", fsname); + if ((ret = sbget(fd, &fs, -1)) != 0) { + switch (ret) { + case ENOENT: + warn("Cannot find file system superblock"); + return (1); + default: + warn("Unable to read file system superblock"); + return (1); + } } - if (sblock_try[i] == -1) - errx(2, "cannot find file system superblock"); - bsize = sbp->fs_bsize; + bsize = fs->fs_bsize; /* remaining arguments are inode numbers. */ while (*++argv) { @@ -119,20 +110,20 @@ main(int argc, char *argv[]) (void)printf("clearing %d\n", inonum); /* read in the appropriate block. */ - offset = ino_to_fsba(sbp, inonum); /* inode to fs blk */ - offset = fsbtodb(sbp, offset); /* fs blk disk blk */ + offset = ino_to_fsba(fs, inonum); /* inode to fs blk */ + offset = fsbtodb(fs, offset); /* fs blk disk blk */ offset *= DEV_BSIZE; /* disk blk to bytes */ /* seek and read the block */ if (lseek(fd, offset, SEEK_SET) < 0) - err(1, "%s", fs); + err(1, "%s", fsname); if (read(fd, ibuf, bsize) != bsize) - err(1, "%s", fs); + err(1, "%s", fsname); - if (sbp->fs_magic == FS_UFS2_MAGIC) { + if (fs->fs_magic == FS_UFS2_MAGIC) { /* get the inode within the block. */ dp2 = &(((struct ufs2_dinode *)v) - [ino_to_fsbo(sbp, inonum)]); + [ino_to_fsbo(fs, inonum)]); /* clear the inode, and bump the generation count. */ generation = dp2->di_gen + 1; @@ -141,7 +132,7 @@ main(int argc, char *argv[]) } else { /* get the inode within the block. */ dp1 = &(((struct ufs1_dinode *)v) - [ino_to_fsbo(sbp, inonum)]); + [ino_to_fsbo(fs, inonum)]); /* clear the inode, and bump the generation count. */ generation = dp1->di_gen + 1; @@ -151,9 +142,9 @@ main(int argc, char *argv[]) /* backup and write the block */ if (lseek(fd, (off_t)-bsize, SEEK_CUR) < 0) - err(1, "%s", fs); + err(1, "%s", fsname); if (write(fd, ibuf, bsize) != bsize) - err(1, "%s", fs); + err(1, "%s", fsname); (void)fsync(fd); } (void)close(fd); |