1 files changed, 69 insertions, 0 deletions
diff --git a/bin/dd/tests/dd2_test.sh b/bin/dd/tests/dd2_test.sh
new file mode 100755
index 000000000000..c0b33fc17226
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+++ b/bin/dd/tests/dd2_test.sh
@@ -0,0 +1,69 @@
+#
+# Copyright (c) 2017 Spectra Logic Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+# $FreeBSD$
+
+
+atf_test_case max_seek
+max_seek_head()
+{
+	atf_set "descr" "dd(1) can seek by the maximum amount"
+}
+max_seek_body()
+{
+	case `df -T . | tail -n 1 | cut -wf 2` in
+		"ufs")
+			atf_skip "UFS's maximum file size is too small";;
+		"zfs") ;; # ZFS is fine
+		"tmpfs")
+			atf_skip "tmpfs can't create arbitrarily large spare files";;
+		*) atf_skip "Unknown file system";;
+	esac
+
+	touch f.in
+	seek=`echo "2^63 / 4096 - 1" | bc`
+	atf_check -s exit:0 -e ignore dd if=f.in of=f.out bs=4096 seek=$seek
+}
+
+atf_test_case seek_overflow
+seek_overflow_head()
+{
+	atf_set "descr" "dd(1) should reject too-large seek values"
+}
+seek_overflow_body()
+{
+	touch f.in
+	seek=`echo "2^63 / 4096" | bc`
+	atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
+		dd if=f.in of=f.out bs=4096 seek=$seek
+	atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
+		dd if=f.in of=f.out bs=4096 seek=-1
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case max_seek
+	atf_add_test_case seek_overflow
+}