1#!/bin/sh 2# ensure that ls -i works also for mount points 3 4# Copyright (C) 2009-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ ls 21 22# We use --local here so as to not activate 23# potentially very many remote mounts. 24df --local --out=target | sed -n '/^\/./p' > mount_points 25test -s mount_points || 26 skip_ "this test requires a non-root mount point" 27 28# Given e.g., /dev/shm, produce the list of GNU ls options that 29# let us list just that entry using readdir data from its parent: 30# ls -i -I '[^s]*' -I 's[^h]*' -I 'sh[^m]*' -I 'shm?*' -I '.?*' \ 31# -I '?' -I '??' /dev 32 33ls_ignore_options() 34{ 35 name=$1 36 opts="-I '.?*' -I '$name?*'" 37 while :; do 38 glob=$(echo "$name"|sed 's/\(.*\)\(.\)$/\1[^\2]*/') 39 opts="$opts -I '$glob'" 40 name=$(echo "$name"|sed 's/.$//') 41 test -z "$name" && break 42 glob=$(echo "$name"|sed 's/./?/g') 43 opts="$opts -I '$glob'" 44 done 45 echo "$opts" 46} 47 48inode_via_readdir() 49{ 50 mount_point=$1 51 base=$(basename "$mount_point") 52 case "$base" in 53 .*) skip_ 'mount point component starts with "."' ;; 54 *[*?]*) skip_ 'mount point component contains "?" or "*"' ;; 55 esac 56 opts=$(ls_ignore_options "$base") 57 parent_dir=$(dirname "$mount_point") 58 ls_out=$(eval "ls -i $opts '$parent_dir'") 59 test $? -eq 0 || \ 60 skip_ "'$parent_dir' is not readable for current user" 61 echo $ls_out | sed 's/ .*//' 62} 63 64while read dir; do 65 readdir_inode=$(inode_via_readdir "$dir") 66 test $? = 77 && continue 67 stat_inode=$(timeout 1 stat --format=%i "$dir") 68 # If stat fails or says the inode is 0, skip $dir. 69 case $stat_inode in 0|'') continue;; esac 70 test "$readdir_inode" = "$stat_inode" || fail=1 71done < mount_points 72 73Exit $fail 74