1 files changed, 55 insertions, 0 deletions
diff --git a/tests/tail-2/append-only b/tests/tail-2/append-only
new file mode 100755
index 0000000..cee6644
--- /dev/null
+++ b/tests/tail-2/append-only
@@ -0,0 +1,55 @@
+#!/bin/sh
+# Ensure that tail -f works on an append-only file
+# Requires root access to do chattr +a, as well as an ext[23] or xfs file system
+
+# Copyright (C) 2006 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
+  tail --version
+fi
+
+PRIV_CHECK_ARG=require-root . $srcdir/../priv-check
+
+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
+
+touch f
+chattr +a f 2>/dev/null || framework_failure=1
+( echo x > f ) 2>/dev/null && framework_failure=1
+echo x >> f || framework_failure=1
+
+if test $framework_failure = 1; then
+  echo "$0: chattr +a doesn't work on this file system; skipping this test " 1>&2
+  (exit 77); exit 77
+fi
+
+fail=0
+
+sleep 1 &
+pid=$!
+tail --pid=$pid -f f > /dev/null 2>&1 || fail=1
+chattr -a f 2>/dev/null
+
+(exit $fail); exit $fail