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|
#help
usage() {
echo "Usage: $0 -o <target_output> -b <target_bin> -p <LD_PRELOAD_PATH> [-t <timeout_sec>] -- [target_args]"
echo "Options:"
echo " -o Path to target output directory"
echo " -b Path to target program binary"
echo " -p Path to LD_PRELOAD library"
echo " -t Timeout in seconds"
exit 1
}
#parse cli options
while getopts ":o:b:p:t:" opt; do
case $opt in
o) target_output="$OPTARG" ;;
b) target_bin="$OPTARG" ;;
p) LD_PRELOAD_PATH="$OPTARG" ;;
t) timeout_sec="$OPTARG" ;;
\?) echo "Invalid option: -$OPTARG" >&2; usage ;;
:) echo "Option -$OPTARG requires an argument." >&2; usage ;;
esac
done
#shift away the parsed opts
shift $((OPTIND - 1))
#check options
if [ -z "$target_output" ] || [ -z "$target_bin" ] || [ -z "$LD_PRELOAD_PATH" ]; then
echo "Error: Missing mandatory opts" >&2
usage
fi
# initialize vars
AFL_TOKEN_FILE="${PWD}/temp_output.txt"
AFL_DICT_FILE="${PWD}/$(basename "$target_bin")_tokens.dict"
#generate token-file
{
touch "$AFL_TOKEN_FILE"
for i in $(find "$target_output" -type f -name "id*"); do
LD_PRELOAD="$LD_PRELOAD_PATH" \
timeout -s SIGKILL "$timeout_sec" \
"$target_bin" "$@" "$i"
done
} >"$AFL_TOKEN_FILE"
# sort & remove duplicates
sort -u "$AFL_TOKEN_FILE" >"$AFL_DICT_FILE"
# delete temp-file
rm "$AFL_TOKEN_FILE"
# print done-message
echo "Token dictionary created: $AFL_DICT_FILE"
echo "Script completed successfully"
|
