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Diffstat (limited to 'tests/ls/stat-vs-dirent.sh')
-rwxr-xr-x | tests/ls/stat-vs-dirent.sh | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tests/ls/stat-vs-dirent.sh b/tests/ls/stat-vs-dirent.sh new file mode 100755 index 0000000..e263bd5 --- /dev/null +++ b/tests/ls/stat-vs-dirent.sh @@ -0,0 +1,59 @@ +#!/bin/sh +# Ensure that d_ino (from ls -di) and st_ino (from stat --format=%i) match. + +# Copyright (C) 2006-2018 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ ls + + +root_dev_ino=$(stat --format=%d-%i /) +t=$(pwd) +while :; do + if ls -i1 "$t" > tmp; 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. + # Note that when a directory contains only entries whose names + # start with ".", d_ino and file will both be empty. In that case, + # skip the test. + if test -n "$d_ino" && test "$d_ino" != "$st_ino"; then + echo "$0: test failed: $t/$file: d_ino($d_ino) != st_ino($st_ino) + This may indicate a flaw in your kernel or file system implementation. + The flaw isn't serious for coreutils, but it might break other tools, + so you should report it to your operating system vendor." 1>&2 + + 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 |