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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2016 Red Hat, Inc. All Rights Reserved.
#
# FSQA Test No. 377
#
# Test listxattr syscall behaviour with different buffer sizes.
#
. ./common/preamble
_begin_fstest attr auto quick metadata
# Import common functions.
. ./common/filter
. ./common/attr
# real QA test starts here
_supported_fs generic
_require_scratch
_require_attrs
_require_test_program "listxattr"
listxattr="$here/src/listxattr"
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
# Create a testfile with three xattrs such that the sum of namelengths of the
# first two is bigger than the namelength of the third. This is needed for
# the 5th testcase that tests one of the cornercases.
testfile=${SCRATCH_MNT}/testfile
touch $testfile
$SETFATTR_PROG -n user.foo -v bar $testfile
$SETFATTR_PROG -n user.ping -v pong $testfile
$SETFATTR_PROG -n user.hello -v there $testfile
# 1. Call listxattr without buffer length argument. This should succeed.
$listxattr $testfile | grep '^xattr: user\.' | sort
# 2. Calling listxattr on nonexistant file should fail with -ENOENT.
$listxattr ""
# 3. Calling listxattr with buffersize not suffecient for even one xattr
# should fail with -ERANGE.
$listxattr $testfile 1
# 4. Calling listxattr with buffersize suffecient for one xattr, but not
# sufficient for the whole list should still fail with -ERANGE.
$listxattr $testfile 9
# 5. Calling listxattr with buffersize suffecient for the last xattr, but not
# sufficient for the sum of first two. Should fail with -ERANGE.
$listxattr $testfile 11
# 6. Calling listxattr with buffersize bigger than needed should succeed.
$listxattr $testfile 500 | grep '^xattr: user\.' | sort
status=0
exit
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