mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-11-29 08:08:37 +00:00
Code Issues Releases Activity

Check the inode type and only attempt to print block lists for

Browse Source 
regular files, directories, and symbolic links that require
external storage.

Correct the handling of files with holes and files that have
one or more large blocks and end with a fragment.

Reported by: bde
This commit is contained in:
Kirk McKusick 2018-04-18 22:24:44 +00:00
parent b940886338
commit 15e4030e9e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=332741
1 changed files with 60 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
tools/diag/prtblknos/prtblknos.c
View File

@ -49,21 +49,65 @@ prtblknos(disk, dp)
struct uufsd *disk;
union dinode *dp;
{
int i, len, lbn, frags, numblks, blksperindir;
int i, len, lbn, mode, frags, numblks, blksperindir;
ufs2_daddr_t blkno;
struct fs *fs;
off_t size;
fs = (struct fs *)&disk->d_sb;
if (fs->fs_magic == FS_UFS1_MAGIC)
if (fs->fs_magic == FS_UFS1_MAGIC) {
size = dp->dp1.di_size;
else
mode = dp->dp1.di_mode;
} else {
size = dp->dp2.di_size;
numblks = howmany(size, fs->fs_bsize);
if (numblks == 0) {
printf(" empty file\n");
return;
mode = dp->dp2.di_mode;
}
switch (mode & IFMT) {
case IFIFO:
printf("fifo\n");
return;
case IFCHR:
printf("character device\n");
return;
case IFBLK:
printf("block device\n");
return;
case IFSOCK:
printf("socket\n");
return;
case IFWHT:
printf("whiteout\n");
return;
case IFLNK:
if (size == 0) {
printf("empty symbolic link\n");
return;
}
if (size < fs->fs_maxsymlinklen) {
printf("symbolic link referencing %s\n",
(fs->fs_magic == FS_UFS1_MAGIC) ?
(char *)dp->dp1.di_db :
(char *)dp->dp2.di_db);
return;
}
printf("symbolic link\n");
break;
case IFREG:
if (size == 0) {
printf("empty file\n");
return;
}
printf("regular file, size %ld\n", size);
break;
case IFDIR:
if (size == 0) {
printf("empty directory\n");
return;
}
printf("directory, size %ld\n", size);
break;
}
numblks = howmany(size, fs->fs_bsize);
len = numblks < UFS_NDADDR ? numblks : UFS_NDADDR;
for (i = 0; i < len; i++) {
if (i < numblks - 1)
@ -110,6 +154,11 @@ indirprt(disk, level, blksperindir, lbn, blkno, lastlbn)
int i, last;
fs = (struct fs *)&disk->d_sb;
if (blkno == 0) {
printblk(fs, lbn, blkno,
blksperindir * NINDIR(fs) * fs->fs_frag, lastlbn);
return;
}
printblk(fs, lbn, blkno, fs->fs_frag, -level);
/* read in the indirect block. */
if (bread(disk, fsbtodb(fs, blkno), indir, fs->fs_bsize) == -1)
@ -178,12 +227,12 @@ printblk(fs, lbn, blkno, numblks, lastlbn)
if (lastlbn <= 0)
goto flush;
if (seq == 0) {
seq = 1;
seq = howmany(numblks, fs->fs_frag);
firstblk = blkno;
return;
}
if (lbn == 0) {
seq = 1;
seq = howmany(numblks, fs->fs_frag);
lastblk = 0;
firstblk = blkno;
lastindirblk = 0;
@ -192,8 +241,8 @@ printblk(fs, lbn, blkno, numblks, lastlbn)
if (lbn < lastlbn && ((firstblk == 0 && blkno == 0) ||
(firstblk == BLK_NOCOPY && blkno == BLK_NOCOPY) ||
(firstblk == BLK_SNAP && blkno == BLK_SNAP) ||
blkno == firstblk + seq * numblks)) {
seq++;
blkno == firstblk + seq * fs->fs_frag)) {
seq += howmany(numblks, fs->fs_frag);
return;
}
flush: