libzc: add scripts to test plaintext and bruteforce

These two scripts will run yazc indefinitely (or until they crash or
return an error). Only usefull during development.

data/test_bruteforce.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Copyright (C) 2012-2018 Marc Ferland
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+ZIP=$(which zip)
+CMD="libtool --mode=execute ../yazc/yazc"
+
+create_dummy_files() {
+    for i in $(seq 0 2)
+    do
+        dd if=/dev/urandom of=file_${i} bs=$(($RANDOM * 10)) count=1 &>/dev/null
+    done
+}
+
+create_zip_file() {
+    FILES="file_0 file_1 file_2"
+    zip -e -P ${PW} ${E} ${FILES} &>/dev/null
+}
+
+cleanup() {
+    rm -f file_[0-9] e_archive_*
+}
+
+if [ ! -f "${ZIP}" ]; then
+    echo >&2 "error: zip not found!"
+    exit 1
+fi
+
+while true; do
+    PW=$(cat /dev/urandom | tr -dc 'a-zA-Z' | fold -w $(($RANDOM % 7 + 1)) | head -n 1)
+    E="e_archive_${PW}.zip"
+
+    cleanup
+    create_dummy_files
+    create_zip_file
+
+    EINFO=$(${CMD} info ${E} | grep file_0 | sed 's/\ \+/ /g')
+
+    echo libtool exe ../yazc/yazc bruteforce -aA -l7 ${E}
+    if ! libtool exe ../yazc/yazc bruteforce -aA -l7 ${E}; then
+	echo >&2 "ERROR"
+	exit 1
+    fi
+done
+
+exit 0