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From 9f640573906bf7f98133006d09cb2bddca5ec5ae Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 12 Sep 2012 21:08:56 +0200
Subject: [PATCH] Use ramdisk for volatile storage in OSX.
---
src/password-store.sh | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/password-store.sh b/src/password-store.sh
index c736d7b..33a0e97 100755
--- a/src/password-store.sh
+++ b/src/password-store.sh
@@ -239,6 +239,19 @@ case "$command" in
if [[ -d /dev/shm && -w /dev/shm && -x /dev/shm ]]; then
tmp_dir="$(TMPDIR=/dev/shm mktemp -t $template -d)"
+ elif [[ $(uname) = "Darwin" ]]; then
+ cleanup_tmp() {
+ [[ -d $tmp_dir ]] || return
+ rm -rf "$tmp_file" "$tmp_dir" 2>/dev/null
+ umount "$tmp_dir"
+ diskutil quiet eject "$ramdisk_dev"
+ rmdir "$tmp_dir"
+ }
+ trap cleanup_tmp INT TERM EXIT
+ tmp_dir="$(mktemp -t $template -d)"
+ ramdisk_dev="$(hdid -drivekey system-image=yes -nomount 'ram://32768' | cut -d ' ' -f 1)" # 32768 sectors = 16 mb
+ newfs_hfs -M 700 "$ramdisk_dev" &>/dev/null || exit 1
+ mount -t hfs -o noatime -o nobrowse "$ramdisk_dev" "$tmp_dir" || exit 1
else
prompt=$(echo "Your system does not have /dev/shm, which means that it may"
echo "be difficult to entirely erase the temporary non-encrypted"
--
1.7.12