mirror of
git://git.sv.gnu.org/coreutils.git
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71 lines
2.1 KiB
Bash
Executable File
71 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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# Show that fts (hence du, chmod, chgrp, chown) fails when all of the
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# following are true:
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# - `.' is not readable
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# - operating on a hierarchy containing a relative name longer than PATH_MAX
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# - run on a system where gnulib's openat emulation must resort to using
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# save_cwd and restore_cwd (which fail if `.' is not readable).
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# Thus, the following du invocation should succeed on newer Linux and
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# Solaris systems, yet it must fail on systems lacking both openat and
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# /proc support. However, before coreutils-6.0 this test would fail even
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# on Linux+PROC_FS systems because its fts implementation would revert
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# unnecessarily to using FTS_NOCHDIR mode in this corner case.
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if test "$VERBOSE" = yes; then
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set -x
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du --version
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fi
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. $srcdir/../envvar-check
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proc_file=/proc/self/fd
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if ! test -d $proc_file; then
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cat <<EOF >&2
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$0: Skipping this test.
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It would fail, since your system lacks /proc support.
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EOF
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(exit 77); exit 77
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fi
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pwd=`pwd`
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t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
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trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
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trap '(exit $?); exit $?' 1 2 13 15
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framework_failure=0
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mkdir -p $tmp || framework_failure=1
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cd $tmp || framework_failure=1
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dir=`printf %200s ' '|sed 's/ /x/g'`
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# Construct a hierarchy containing a relative file with a name
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# longer than PATH_MAX.
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# for i in `seq 52`; do
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# mkdir $dir || framework_failure=1
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# cd $dir || framework_failure=1
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# done
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# cd $tmp || framework_failure=1
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# Sheesh. Bash 3.1.5 can't create this hierarchy. I get
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# cd: error retrieving current directory: getcwd: cannot access parent directories:
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# Use perl instead:
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: ${PERL=perl}
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$PERL \
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-e 'my $d = '$dir'; foreach my $i (1..52)' \
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-e ' { mkdir ($d, 0700) && chdir $d or die "$!" }' \
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|| framework_failure=1
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mkdir inaccessible || framework_failure=1
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cd inaccessible || framework_failure=1
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chmod 0 . || framework_failure=1
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if test $framework_failure = 1; then
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echo "$0: failure in testing framework" 1>&2
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(exit 1); exit 1
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fi
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fail=0
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du -s $pwd/$tmp/$dir > /dev/null || fail=1
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(exit $fail); exit $fail
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