1 files changed, 79 insertions, 0 deletions
diff --git a/tests/du/slink b/tests/du/slink
new file mode 100755
index 0000000..8be1a30
--- /dev/null
+++ b/tests/du/slink
@@ -0,0 +1,79 @@
+#!/bin/sh
+# Ensure that the size of a long-named-symlink is > 0.
+
+# Copyright (C) 2002-2007 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 2 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  du --version
+fi
+
+pwd=`pwd`
+t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
+trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+framework_failure=0
+mkdir -p $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+
+# Determine if `.' is on a local (would non-NFS be sufficient?) file system.
+# On at least some NFS implementations, symlinks never take up space,
+
+# So if this is a non-local file system, skip the test.
+if df --local . >/dev/null 2>&1; then
+  : # Ok.
+else
+  echo "$0: skipping this test, since \`.' is on a non-local file system" 1>&2
+  (exit 77); exit 77
+fi
+
+if df --type=xfs . >/dev/null 2>&1; then
+  # At least on Irix-6.5.19, when using an xfs file system,
+  # each created symlink (name lengths up to 255) would have a size of `0'.
+  echo "$0: skipping this test, since \`.' is on an XFS file system" 1>&2
+  (exit 77); exit 77
+fi
+
+if df --type=nfsv3 . >/dev/null 2>&1; then
+  # At least on OSF/1 4.0d, when using an nfsv3 file system,
+  # each created symlink can end up having a size of 0.
+  echo "$0: skipping this test, since \`.' is on an NFS file system" 1>&2
+  (exit 77); exit 77
+fi
+
+if test $framework_failure = 1; then
+  echo "$0: failure in testing framework" 1>&2
+  (exit 1); exit 1
+fi
+
+fail=0
+symlink_name_lengths='1 15 16 31 32 59 60 63 64 127 128 255 256 511 512 1024'
+for len in $symlink_name_lengths; do
+  name=`seq 1 $len|tr -c x y |head -c$len`
+  # Record the names of symlinks that are successfully created.
+  ln -fs $name $len > /dev/null 2>&1 \
+    && symlinks="$symlinks $len"
+done
+
+du -a $symlinks > out || fail=1
+
+# Require that at least one of these symlinks has a non-zero size.
+grep '^[1-9]' out > /dev/null || fail=1
+
+(exit $fail); exit $fail