zapret/install_bin.sh

#!/bin/sh

EXEDIR="$(dirname "$0")"
EXEDIR="$(
	cd "$EXEDIR"
	pwd
)"
BINS=binaries
BINDIR="$EXEDIR/$BINS"

ZAPRET_BASE=${ZAPRET_BASE:-"$EXEDIR"}
. "$ZAPRET_BASE/common/base.sh"

check_dir() {
	local dir="$BINDIR/$1"
	local exe="$dir/ip2net"
	local out
	if [ -f "$exe" ]; then
		if [ -x "$exe" ]; then
			# ash and dash try to execute invalid executables as a script. they interpret binary garbage with possible negative consequences
			# bash and zsh do not do this
			if exists bash; then
				out=$(echo 0.0.0.0 | bash -c "\"$exe"\" 2>/dev/null)
			elif exists zsh; then
				out=$(echo 0.0.0.0 | zsh -c "\"$exe\"" 2>/dev/null)
			else
				# find does not use its own shell exec
				# it uses execvp(). in musl libc it does not call shell, in glibc it DOES call /bin/sh
				# that's why prefer bash or zsh if present. otherwise it's our last chance
				out=$(echo 0.0.0.0 | find "$dir" -maxdepth 1 -name ip2net -exec {} \; 2>/dev/null)
			fi
			[ -n "$out" ]
		else
			echo "$exe is not executable. set proper chmod."
			return 1
		fi
	else
		echo "$exe is absent"
		return 2
	fi
}

# link or copy executables. uncomment either ln or cp, comment other
ccp() {
	local F="$(basename "$1")"
	[ -d "$ZAPRET_BASE/$2" ] || mkdir "$ZAPRET_BASE/$2"
	[ -f "$ZAPRET_BASE/$2/$F" ] && rm -f "$ZAPRET_BASE/$2/$F"
	ln -fs "../$BINS/$1" "$ZAPRET_BASE/$2" && echo linking : "../$BINS/$1" =\> "$ZAPRET_BASE/$2"
	#cp -f "../$BINS/$1" "$ZAPRET_BASE/$2" && echo copying : "../$BINS/$1" =\> "$ZAPRET_BASE/$2"
}

UNAME=$(uname)
unset PKTWS
case $UNAME in
Linux)
	ARCHLIST="my x86_64 x86 aarch64 arm mips64r2-msb mips32r1-lsb mips32r1-msb ppc"
	PKTWS=nfqws
	;;
Darwin)
	ARCHLIST="my mac64"
	;;
FreeBSD)
	ARCHLIST="my freebsd-x64"
	PKTWS=dvtws
	;;
CYGWIN*)
	UNAME=CYGWIN
	ARCHLIST="win64"
	PKTWS=winws
	;;
*)
	ARCHLIST="my"
	;;
esac

if [ "$1" = "getarch" ]; then
	for arch in $ARCHLIST; do
		[ -d "$BINDIR/$arch" ] || continue
		if check_dir "$arch"; then
			echo "$arch"
			exit 0
		fi
	done
else
	for arch in $ARCHLIST; do
		[ -d "$BINDIR/$arch" ] || continue
		if check_dir "$arch"; then
			echo "$arch" is OK
			echo installing binaries ...
			ccp "$arch"/ip2net ip2net
			ccp "$arch"/mdig mdig
			[ -n "$PKTWS" ] && ccp "$arch"/$PKTWS nfq
			[ "$UNAME" = CYGWIN ] || ccp "$arch"/tpws tpws
			exit 0
		else
			echo "$arch" is NOT OK
		fi
	done
	echo no compatible binaries found
fi

exit 1