| # Exercise chdir-long's sample main program. | |
| # Copyright (C) 2005-2025 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/>. | |
| # FIXME: add traps and choose top level names so that | |
| # temporary directories are easier to remove. | |
| # FIXME: don't clobber a.out | |
| gcc -DTEST_CHDIR -g -O -W -Wall \ | |
| chdir-long.c libcoreutils.a | |
| vg='valgrind --track-fds=yes --leak-check=yes --quiet --num-callers=9' | |
| vg="$vg --leak-resolution=high" | |
| # Create a directory with name of the specified length. | |
| # Caveat: assumes the requested length is longer than that of $TMPDIR or /tmp. | |
| function mkdir_len | |
| { | |
| local n | |
| case $# in 1) n=$1;; *) echo "Usage: $FUNCNAME N" 1>&2; return 1;; esac | |
| local root=${TMPDIR=/tmp} | |
| test -n "$ROOT" && root=$ROOT | |
| ( cd $root && | |
| perl -e 'my $len='$n'-length "'$root'";$i=100;$d="z"x$i; | |
| while ($i+2 < $len) { | |
| $len -= $i + 1; | |
| mkdir $d,0700 or die "$!\n"; | |
| chdir $d} $d="z"x($len-1); | |
| mkdir $d or die "mkdir_len: $d: $!\n"' ) | |
| } | |
| size_list= | |
| pow_2=128 | |
| for i in 7 8 9 10 11 12 13 14 15 16 17; do | |
| n=$pow_2 | |
| nm1=`expr $pow_2 - 1` | |
| np1=`expr $pow_2 + 1` | |
| size_list="$size_list $nm1 $n $np1" | |
| pow_2=`expr $pow_2 \* 2` | |
| done | |
| for t in . /t /tmp /var/tmp; do | |
| test -d $t || continue | |
| printf "$t\n" | |
| export TMPDIR=$t | |
| for i in `echo $size_list 99999 11`; do | |
| printf "$t\t$i\n" | |
| mkdir_len $i | |
| find $TMPDIR/zz*|tail -n1 > in | |
| tt=`echo $t|tr / -` | |
| # strace -o /t/k-$tt-$i ./a.out < in > out | |
| ./a.out < in > out | |
| # eval "$vg ./a.out no-pwd < in" | |
| rm -rf $TMPDIR/zz* | |
| if test "$TMPDIR" = . ; then | |
| (pwd|tr -d '\n'; sed 's/^\.//' in) > k; rm -f in; mv k in | |
| fi | |
| diff -u in out > diff \ | |
| || { echo FAIL $t:$i; cut -b 1-35 diff; } \ | |
| && rm -f diff in out | |
| done | |
| done | |
| rm -f a.out | |