From 662249c2c974297208a94c557da9461f1ed4238c Mon Sep 17 00:00:00 2001 From: Gerardo Exequiel Pozzi Date: Tue, 8 Jan 2013 20:20:03 -0300 Subject: [archiso] Avoid integer overflow when .fs is > 10.2G --- hooks/archiso | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'hooks') diff --git a/hooks/archiso b/hooks/archiso index 491ed2f..66a6273 100644 --- a/hooks/archiso +++ b/hooks/archiso @@ -11,7 +11,12 @@ _mnt_fs() { ro_dev=$(losetup --find --show --read-only "${img}") echo ${ro_dev} >> /run/archiso/used_block_devices ro_dev_size=$(blockdev --getsz ${ro_dev}) - rw_dev_size=$((ro_dev_size*cowfile_size/100)) + if [[ "${cowfile_size}" == "100" ]]; then + rw_dev_size=${ro_dev_size} + else + # size calculation done in this way to avoid integer overflow when ro_dev_size is > 10.2G + rw_dev_size=$((ro_dev_size/100*cowfile_size)) + fi if [[ "${cow_persistent}" == "P" ]]; then if [[ -f "/run/archiso/cowspace/${cow_directory}/${img_name}.cow" ]]; then -- cgit v1.2.3-70-g09d2