#!/bin/sh # Test some of cp's options and how cp handles situations in # which a naive implementation might overwrite the source file. # Copyright (C) 1998-2017 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 . . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src print_ver_ cp # Unset CDPATH. Otherwise, output from the 'cd dir' command # can make this test fail. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH VERSION_CONTROL=numbered; export VERSION_CONTROL # Determine whether a hard link to a symlink points to the symlink # itself or to its referent. For example, the link from FreeBSD6.1 # does dereference a symlink, but the one from Linux does not. ln -s no-such dangling-slink ln dangling-slink hard-link > /dev/null 2>&1 \ && hard_link_to_symlink_does_the_deref=no \ || hard_link_to_symlink_does_the_deref=yes rm -f no-such dangling-slink hard-link test $hard_link_to_symlink_does_the_deref = yes \ && remove_these_sed='/^0 -[bf]*l .*sl1 ->/d; /hlsl/d' \ || remove_these_sed='/^ELIDE NO TEST OUTPUT/d' exec 3>&1 1> actual # FIXME: This should be bigger: like more than 8k contents=XYZ for args in 'foo symlink' 'symlink foo' 'foo foo' 'sl1 sl2' \ 'foo hardlink' 'hlsl sl2'; do for options in '' -d -f -df --rem -b -bd -bf -bdf \ -l -dl -fl -dfl -bl -bdl -bfl -bdfl; do case $args$options in # These tests are not portable. # They all involve making a hard link to a symbolic link. # In the past, we've skipped the tests that are not portable, # by doing "continue" here and eliminating the corresponding # expected output lines below. Don't do that anymore. 'symlink foo'-dfl) continue;; 'symlink foo'-bdl) continue;; 'symlink foo'-bdfl) continue;; 'sl1 sl2'-dfl) continue;; 'sl1 sl2'-bd*l) continue;; 'sl1 sl2'-dl) continue;; esac # cont'd Instead, skip them only on systems for which link does # dereference a symlink. Detect and skip such tests here. case $hard_link_to_symlink_does_the_deref:$args:$options in 'yes:sl1 sl2:-fl') continue ;; 'yes:sl1 sl2:-bl') continue ;; 'yes:sl1 sl2:-bfl') continue ;; yes:hlsl*) continue ;; esac rm -rf dir mkdir dir cd dir echo $contents > foo case "$args" in *symlink*) ln -s foo symlink ;; esac case "$args" in *hardlink*) ln foo hardlink ;; esac case "$args" in *sl1*) ln -s foo sl1;; esac case "$args" in *sl2*) ln -s foo sl2;; esac case "$args" in *hlsl*) ln sl2 hlsl;; esac ( ( # echo 1>&2 cp $options $args cp $options $args 2>_err echo $? $options # Normalize the program name and diagnostics in the error output, # and put brackets around the output. if test -s _err; then sed ' s/^[^:]*:\([^:]*\).*/cp:\1/ 1s/^/[/ $s/$/]/ ' _err fi # Strip off all but the file names. ls=$(ls -gG --ignore=_err . \ | sed \ -e '/^total /d' \ -e 's/^[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *//') echo "($ls)" # Make sure the original is unchanged and that # the destination is a copy. for f in $args; do if test -f $f; then case "$(cat $f)" in "$contents") ;; *) echo cp FAILED;; esac else echo symlink-loop fi done ) | tr '\n' ' ' echo ) | sed 's/ *$//' cd .. done echo done cat <<\EOF | sed "$remove_these_sed" > expected 1 [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo) 1 -d [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo) 1 -f [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo) 1 -df [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo) 0 --rem (foo symlink) 0 -b (foo symlink symlink.~1~ -> foo) 0 -bd (foo symlink symlink.~1~ -> foo) 0 -bf (foo symlink symlink.~1~ -> foo) 0 -bdf (foo symlink symlink.~1~ -> foo) 1 -l [cp: cannot create hard link 'symlink' to 'foo'] (foo symlink -> foo) 1 -dl [cp: cannot create hard link 'symlink' to 'foo'] (foo symlink -> foo) 0 -fl (foo symlink) 0 -dfl (foo symlink) 0 -bl (foo symlink symlink.~1~ -> foo) 0 -bdl (foo symlink symlink.~1~ -> foo) 0 -bfl (foo symlink symlink.~1~ -> foo) 0 -bdfl (foo symlink symlink.~1~ -> foo) 1 [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 1 -d [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 1 -f [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 1 -df [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 1 --rem [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 1 -b [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 0 -bd (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop 1 -bf [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo) 0 -bdf (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop 0 -l (foo symlink -> foo) 0 -dl (foo symlink -> foo) 0 -fl (foo symlink -> foo) 0 -bl (foo symlink -> foo) 0 -bfl (foo symlink -> foo) 1 [cp: 'foo' and 'foo' are the same file] (foo) 1 -d [cp: 'foo' and 'foo' are the same file] (foo) 1 -f [cp: 'foo' and 'foo' are the same file] (foo) 1 -df [cp: 'foo' and 'foo' are the same file] (foo) 1 --rem [cp: 'foo' and 'foo' are the same file] (foo) 1 -b [cp: 'foo' and 'foo' are the same file] (foo) 1 -bd [cp: 'foo' and 'foo' are the same file] (foo) 0 -bf (foo foo.~1~) 0 -bdf (foo foo.~1~) 0 -l (foo) 0 -dl (foo) 0 -fl (foo) 0 -dfl (foo) 0 -bl (foo) 0 -bdl (foo) 0 -bfl (foo foo.~1~) 0 -bdfl (foo foo.~1~) 1 [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo) 0 -d (foo sl1 -> foo sl2 -> foo) 1 -f [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo) 0 -df (foo sl1 -> foo sl2 -> foo) 0 --rem (foo sl1 -> foo sl2) 0 -b (foo sl1 -> foo sl2 sl2.~1~ -> foo) 0 -bd (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo) 0 -bf (foo sl1 -> foo sl2 sl2.~1~ -> foo) 0 -bdf (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo) 1 -l [cp: cannot create hard link 'sl2' to 'sl1'] (foo sl1 -> foo sl2 -> foo) 0 -fl (foo sl1 -> foo sl2) 0 -bl (foo sl1 -> foo sl2 sl2.~1~ -> foo) 0 -bfl (foo sl1 -> foo sl2 sl2.~1~ -> foo) 1 [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) 1 -d [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) 1 -f [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) 1 -df [cp: 'foo' and 'hardlink' are the same file] (foo hardlink) 0 --rem (foo hardlink) 0 -b (foo hardlink hardlink.~1~) 0 -bd (foo hardlink hardlink.~1~) 0 -bf (foo hardlink hardlink.~1~) 0 -bdf (foo hardlink hardlink.~1~) 0 -l (foo hardlink) 0 -dl (foo hardlink) 0 -fl (foo hardlink) 0 -dfl (foo hardlink) 0 -bl (foo hardlink) 0 -bdl (foo hardlink) 0 -bfl (foo hardlink) 0 -bdfl (foo hardlink) 1 [cp: 'hlsl' and 'sl2' are the same file] (foo hlsl -> foo sl2 -> foo) 0 -d (foo hlsl -> foo sl2 -> foo) 1 -f [cp: 'hlsl' and 'sl2' are the same file] (foo hlsl -> foo sl2 -> foo) 0 -df (foo hlsl -> foo sl2 -> foo) 0 --rem (foo hlsl -> foo sl2) 0 -b (foo hlsl -> foo sl2 sl2.~1~ -> foo) 0 -bd (foo hlsl -> foo sl2 -> foo sl2.~1~ -> foo) 0 -bf (foo hlsl -> foo sl2 sl2.~1~ -> foo) 0 -bdf (foo hlsl -> foo sl2 -> foo sl2.~1~ -> foo) 1 -l [cp: cannot create hard link 'sl2' to 'hlsl'] (foo hlsl -> foo sl2 -> foo) 0 -dl (foo hlsl -> foo sl2 -> foo) 0 -fl (foo hlsl -> foo sl2) 0 -dfl (foo hlsl -> foo sl2 -> foo) 0 -bl (foo hlsl -> foo sl2 sl2.~1~ -> foo) 0 -bdl (foo hlsl -> foo sl2 -> foo) 0 -bfl (foo hlsl -> foo sl2 sl2.~1~ -> foo) 0 -bdfl (foo hlsl -> foo sl2 -> foo) EOF exec 1>&3 3>&- compare expected actual 1>&2 || fail=1 Exit $fail