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| author | Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar> | 2013-01-08 20:20:03 -0300 |
|---|---|---|
| committer | Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar> | 2013-01-08 20:20:03 -0300 |
| commit | 00d1126f708f077c333a0da48b5e7643eb4bb8ab (patch) | |
| tree | 7fae494598c1f49c0c4065d1fa2db83892bb24ac /archiso | |
| parent | 579ea0f3c1aa8d4f94faa9a9d5cca8a006c14772 (diff) | |
| download | archiso32-00d1126f708f077c333a0da48b5e7643eb4bb8ab.tar.xz | |
[archiso] Avoid integer overflow when .fs is > 10.2G
Diffstat (limited to 'archiso')
| -rw-r--r-- | archiso/initcpio/hooks/archiso | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/archiso/initcpio/hooks/archiso b/archiso/initcpio/hooks/archiso index 491ed2f..66a6273 100644 --- a/archiso/initcpio/hooks/archiso +++ b/archiso/initcpio/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 |