set -e
rm -f testfile
./vbig --seed chahthaiquiyouto --create testfile 65536
-dd if=/dev/zero of=testfile bs=256 count=1 seek=1 conv=nocreat,notrunc status=noxfer
+dd if=/dev/zero of=testfile bs=256 count=1 seek=1 conv=notrunc
if ./vbig --seed chahthaiquiyouto --verify testfile 65536 2>testoutput; then
echo >&2 ERROR: verify unexpectedly succeeded
exit 1
set -e
rm -f testfile
./vbig --seed chahthaiquiyouto --create testfile 65536
-dd if=/dev/zero of=testfile bs=256 count=1 seek=1 conv=nocreat,notrunc oflag=append status=noxfer
+dd if=/dev/zero bs=256 count=1 seek=1 conv=notrunc >> testfile
if ./vbig --seed chahthaiquiyouto --verify testfile 65536 2>testoutput; then
echo >&2 ERROR: verify unexpectedly succeeded
exit 1
set -e
rm -f testfile
./vbig --seed chahthaiquiyouto --create testfile 65536
-truncate --size=32768 testfile
+truncate -s 32768 testfile
if ./vbig --seed chahthaiquiyouto --verify testfile 65536 2>testoutput; then
echo >&2 ERROR: verify unexpectedly succeeded
exit 1