Convert badsect to use libufs.
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3c95539d71
commit
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@ -2,6 +2,8 @@
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# $FreeBSD$
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PROG= badsect
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DPADD= -lufs
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LDADD= -lufs
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WARNS= 0
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MAN= badsect.8
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@ -65,37 +65,21 @@ static const char rcsid[] =
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#include <err.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <libufs.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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union {
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struct fs fs;
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char fsx[SBLOCKSIZE];
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} ufs;
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#define sblock ufs.fs
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union {
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struct cg cg;
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char cgx[MAXBSIZE];
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} ucg;
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#define acg ucg.cg
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struct fs *fs;
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int fso, fsi;
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#define sblock disk.d_fs
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#define acg disk.d_cg
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struct uufsd disk;
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struct fs *fs = &sblock;
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int errs;
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long dev_bsize = 1;
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char buf[MAXBSIZE];
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void rdfs(daddr_t, int, char *);
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int chkuse(daddr_t, int);
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/*
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* Possible superblock locations ordered from most to least likely.
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*/
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static int sblock_try[] = SBLOCKSEARCH;
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static void
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usage(void)
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{
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@ -137,23 +121,12 @@ main(int argc, char *argv[])
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(u_long)stbuf.st_rdev, argv[1]);
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exit(5);
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}
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if ((fsi = open(name, O_RDONLY)) < 0)
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err(6, "%s", name);
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fs = &sblock;
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for (i = 0; sblock_try[i] != -1; i++) {
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rdfs(sblock_try[i] / dev_bsize, SBLOCKSIZE, (char *)fs);
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if ((fs->fs_magic == FS_UFS1_MAGIC ||
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(fs->fs_magic == FS_UFS2_MAGIC &&
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fs->fs_sblockloc == sblock_try[i])) &&
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fs->fs_bsize <= MAXBSIZE &&
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fs->fs_bsize >= sizeof(struct fs))
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break;
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if (ufs_disk_fillout(&disk, name) == -1) {
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if (disk.d_error != NULL)
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errx(6, "%s: %s", name, disk.d_error);
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else
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err(7, "%s", name);
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}
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if (sblock_try[i] == -1) {
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printf("Cannot find file system\n");
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exit(7);
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}
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dev_bsize = fs->fs_fsize / fsbtodb(fs, 1);
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for (argc -= 2, argv += 2; argc > 0; argc--, argv++) {
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number = atol(*argv);
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if (chkuse(number, 1))
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@ -175,6 +148,7 @@ main(int argc, char *argv[])
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errs++;
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}
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}
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ufs_disk_close(&disk);
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printf("Don't forget to run ``fsck %s''\n", name);
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exit(errs);
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}
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@ -204,8 +178,11 @@ chkuse(daddr_t blkno, int cnt)
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return (1);
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}
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}
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rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)sblock.fs_cgsize,
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(char *)&acg);
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if (cgread1(&disk, cg) != 1) {
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fprintf(stderr, "cg %d: could not be read\n", cg);
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errs++;
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return (1);
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}
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if (!cg_chkmagic(&acg)) {
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fprintf(stderr, "cg %d: bad magic number\n", cg);
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errs++;
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@ -216,22 +193,3 @@ chkuse(daddr_t blkno, int cnt)
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printf("Warning: sector %ld is in use\n", (long)blkno);
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return (0);
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}
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/*
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* read a block from the file system
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*/
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void
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rdfs(daddr_t bno, int size, char *bf)
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{
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int n;
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if (lseek(fsi, (off_t)bno * dev_bsize, SEEK_SET) < 0) {
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printf("seek error: %ld\n", (long)bno);
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err(1, "rdfs");
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}
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n = read(fsi, bf, size);
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if (n != size) {
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printf("read error: %ld\n", (long)bno);
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err(1, "rdfs");
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}
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}
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