1 // Copyright 2022 Code Intelligence GmbH 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package com.example 16 17 import com.code_intelligence.jazzer.api.FuzzedDataProvider 18 import com.code_intelligence.jazzer.api.FuzzerSecurityIssueMedium 19 20 object ExampleKotlinFuzzer { 21 22 @JvmStatic fuzzerTestOneInputnull23 fun fuzzerTestOneInput(data: FuzzedDataProvider) { 24 exploreMe(data.consumeString(8), data.consumeInt(), data.consumeRemainingAsString()) 25 } 26 exploreMenull27 private fun exploreMe(prefix: String, n: Int, suffix: String) { 28 if (prefix.findAnyOf(arrayListOf("Fuzz", "Test")) != null) { 29 if (n >= 2000000) { 30 if (suffix.startsWith("@")) { 31 if (suffix.substring(1) == "Jazzer") { 32 throw FuzzerSecurityIssueMedium("Jazzer resolved string comparisons in Kotlin") 33 } 34 } 35 } 36 } 37 } 38 } 39