diff options
Diffstat (limited to 'sbin/dumpfs/dumpfs.c')
| -rw-r--r-- | sbin/dumpfs/dumpfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sbin/dumpfs/dumpfs.c b/sbin/dumpfs/dumpfs.c index 34b0674..bcde08a 100644 --- a/sbin/dumpfs/dumpfs.c +++ b/sbin/dumpfs/dumpfs.c @@ -115,6 +115,13 @@ dumpfs(name) if (read(fd, &afs, SBSIZE) != SBSIZE) goto err; + if (afs.fs_magic != FS_MAGIC) { + warnx("%s: superblock has bad magic number, skipping.", + name); + (void) close(fd); + return (1); + } + if (afs.fs_postblformat == FS_42POSTBLFMT) afs.fs_nrpos = 8; dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); |
