get-analysis-targets

#!/bin/bash
#   Copyright 2016-2018 Irdeto BV
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
die() {
	echo "fatal: $@" > /dev/stderr
	exit 1
}

READLINK=readlink
if ! test -z "$(which greadlink 2>/dev/null)"; then #we need a useful readlink alternative on OSX
	READLINK=greadlink
fi

SCRIPT_DIR="$(dirname $(${READLINK} -f "${0}"))"

AR=ar
if ! test -z "$(which gar 2>/dev/null)"; then #we need a useful ar alternative on OSX
	AR=gar
fi

if [ -z "$1" ]; then
	die "please specify directories to recursively descend and analyze ('.' for here)"
fi

find "$@" -type f | while read any_file; do
	if file "${any_file}" | grep -qw 'ELF'; then
		target_dir="$(basename "${any_file}")"
		parent_of="$(basename "$(dirname "${any_file}")")"
		if [ "${parent_of}" != "lib" ]; then
			target_dir="${target_dir}/${parent_of}"
		fi
		mkdir -p "${target_dir}" || die
		echo "getting target ${any_file} to ${target_dir}"
		cp "${any_file}" "${target_dir}" || die
	elif file "${any_file}" | grep -qE '(Mach-O )'; then
		if lipo -detailed_info "${any_file}" | grep -q "Fat header in:"; then
			for arch in $(lipo -detailed_info "${any_file}" | grep -w architecture | awk '{print $2}'); do
				#extract arch
				target_dir="$(basename "${any_file}").${arch}"
				mkdir -p "${target_dir}" || die
				echo "getting ${any_file} arch ${arch} to ${target_dir}/$(basename "${target_dir}")"
				lipo "${any_file}" -thin ${arch} -output "${target_dir}/$(basename "${target_dir}")" || die "couldn't thin macho"
			done
		else
			target_dir="$(basename "${any_file}")"
			mkdir -p "${target_dir}" || die
			echo "getting target ${any_file} to ${target_dir}"
			cp "${any_file}" "${target_dir}" || die
		fi
	elif file "${any_file}" | grep -q "current ar archive"; then
		target_dir="$(basename "${any_file}")"
		parent_of="$(basename "$(dirname "${any_file}")")"
		if [ "${parent_of}" != "lib" ]; then
			target_dir="${target_dir}/${parent_of}"
		fi
		mkdir -p "${target_dir}" || die
		any_file="$(${READLINK} -f "${any_file}")"
		echo "getting .o's of ${any_file} to ${target_dir}"
		(cd "${target_dir}" && ${AR} -x "${any_file}") || die
	elif rabin2 -I "${any_file}" | grep -q "arch     dalvik"; then
		target_dir="$(basename "${any_file}")"
		mkdir -p "${target_dir}" || die
		echo "getting target ${any_file} to ${target_dir}"
		cp "${any_file}" "${target_dir}" || die
	fi
done || die "couldn't copy all analysis targets"