[PATCH] xfs: test bad character in xfs_db field list selector string

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Bad characters likes tailing asterisk, slash or quote in xfs_db
field string can trigger a xfs_db crash. This bug has been fixed
by xfsprogs "945e47e2 xfs_db: fix crash when field list selector
string has trailing slash".

Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
---
 tests/xfs/450     | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/450.out |  7 +++++++
 tests/xfs/group   |  1 +
 3 files changed, 57 insertions(+)
 create mode 100755 tests/xfs/450
 create mode 100644 tests/xfs/450.out

diff --git a/tests/xfs/450 b/tests/xfs/450
new file mode 100755
index 00000000..73b0cad8
--- /dev/null
+++ b/tests/xfs/450
@@ -0,0 +1,49 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2018 Red Hat Inc.  All Rights Reserved.
+#
+# FS QA Test 450
+#
+# Test xfs_db by bad character in field list selector string. The issue
+# has been fixed by xfsprogs 945e47e2.
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+	cd /
+	rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# Modify as appropriate.
+_supported_fs xfs
+_supported_os Linux
+_require_scratch
+
+_scratch_mkfs_xfs >> $seqres.full 2>&1
+inum=`_scratch_xfs_get_metadata_field rootino "sb 0"`
+
+echo "= check bad character * ="
+_scratch_xfs_db -c "inode $inum" -c "print core.*"
+echo "= check bad character trailing slash ="
+_scratch_xfs_db -c "inode $inum" -c "print core.\\"
+echo "= check missing closing quote ="
+_scratch_xfs_db -c "inode $inum" -c "print core.\""
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/450.out b/tests/xfs/450.out
new file mode 100644
index 00000000..dab51786
--- /dev/null
+++ b/tests/xfs/450.out
@@ -0,0 +1,7 @@
+QA output created by 450
+= check bad character * =
+bad character in field *
+= check bad character trailing slash =
+bad character in field \
+= check missing closing quote =
+missing closing quote 
diff --git a/tests/xfs/group b/tests/xfs/group
index 932ab909..4d8e0b30 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -447,3 +447,4 @@
 447 auto mount
 448 auto quick fuzzers
 449 auto quick
+450 auto db
-- 
2.14.4

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