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29 atf_test_case max_seek
32 atf_set "descr" "dd(1) can seek by the maximum amount"
36 case `df -T . | tail -n 1 | cut -wf 2` in
38 atf_skip "UFS's maximum file size is too small";;
39 "zfs") ;; # ZFS is fine
41 atf_skip "tmpfs can't create arbitrarily large spare files";;
42 *) atf_skip "Unknown file system";;
46 seek=`echo "2^63 / 4096 - 1" | bc`
47 atf_check -s exit:0 -e ignore dd if=f.in of=f.out bs=4096 seek=$seek
50 atf_test_case seek_overflow
53 atf_set "descr" "dd(1) should reject too-large seek values"
58 seek=`echo "2^63 / 4096" | bc`
59 atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
60 dd if=f.in of=f.out bs=4096 seek=$seek
61 atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
62 dd if=f.in of=f.out bs=4096 seek=-1
67 atf_add_test_case max_seek
68 atf_add_test_case seek_overflow