summaryrefslogtreecommitdiff
path: root/tests/ls/stat-vs-dirent
blob: 048ba5fc4463bf351a5f5abae57cd2c71ed057d6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
#!/bin/sh
# Ensure that d_ino (from ls -di) and st_ino (from stat --format=%i) match.

if test "$VERBOSE" = yes; then
  set -x
  ls --version
fi

. $srcdir/../envvar-check

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
trap '(exit $?); exit $?' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

fail=0

root_dev_ino=`stat --format=%d-%i /`
t=`pwd`
while :; do
  ls -i1 "$t" > tmp
  if test $? = 0; then
    # Extract the inode number from the first line of output from ls -i1.
    # This value comes from dirent.d_ino, on systems with d_ino support.
    d_ino=`sed -n '1s/^ *\([0-9][0-9]*\) .*/\1/p;q' tmp`

    # Extract the name of the corresponding directory entry.
    file=`sed -n '1s/^ *[0-9][0-9]*  *//p;q' tmp`

    # Get its inode number (stat.st_ino) via stat(1)'s call to lstat.
    st_ino=`stat --format=%i "$t/$file"`

    # Make sure that they are the same.
    # We know from experience that there may be mismatches on some
    # buggy file systems, at mount points.
    if test "$d_ino" != "$st_ino"; then
      echo "$0: test failed: $t/$file: d_ino($d_ino) != st_ino($st_ino)" 1>&2
      echo "$0: This may indicate a flaw in your kernel or" \
	     "file system implementation." 1>&2
      echo "$0: This flaw won't impact coreutils, but it may well"
	     "affect other tools,"
      echo "$0: so you should report it to your operating system vendor." 1>&2

      # This test fails too often, and we don't want to be distracted
      # with reports, since the code that could be affected by the losing
      # behavior (pwd and getcwd) works around any mismatch.
      # So do continue to issue the warning, but don't count it as a
      # real failure.
      # fail=1
      break
    fi
  fi

  t=`(cd "$t/.."; pwd)`
  dev_ino=`stat --format=%d-%i "$t"`
  test $dev_ino = $root_dev_ino && break
done

(exit $fail); exit $fail