libgocryptfs/gocryptfs

#!/bin/bash

# Shell wrapper that runs the gocryptfs process in the background
# and exits on SIGUSR1

set -eu

trap "exit 0" SIGUSR1
shopt -u huponexit

dir=$(dirname "$0")
main="$dir/gocryptfs_main/gocryptfs_main"

if [ ! -x $main ]; then
	echo "Error: gocryptfs_main executable not found. Run ./all.bash to build it."
	exit 1
fi

# A backgrounded process gets /dev/null as stdin per default.
# Explicitly set stdin to the current stdin so we can ask the user for input.
"$main" $* < /proc/self/fd/0 & wait
# The "& wait" is neccessary because bash only processes signals when
# executing internal commands

# We did not get USR1 - something went wrong
exit 1