1 /* 2 * Copyright 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "FuncFuzzerUtils.h" 18 #include <getopt.h> 19 20 namespace android { 21 namespace vts { 22 23 static void usage() { 24 fprintf( 25 stdout, 26 "Usage:\n" 27 "\n" 28 "./<fuzzer> <vts flags> -- <libfuzzer flags>\n" 29 "\n" 30 "VTS flags (strictly in form --flag=value):\n" 31 "\n" 32 " vts_target_func \tName of function to be fuzzed.\n" 33 "\n" 34 "libfuzzer flags (strictly in form -flag=value):\n" 35 " Use -help=1 to see libfuzzer flags\n" 36 "Example:\n" 37 "./<fuzzer_name> --vts_target_func=\"foo\" -- -max_len=128 -runs=100\n" 38 "\n"); 39 } 40 41 static struct option long_options[] = { 42 {"help", no_argument, 0, 'h'}, 43 {"vts_target_function", required_argument, 0, 't'} 44 }; 45 46 47 FuncFuzzerParams ExtractFuncFuzzerParams(int argc, char **argv) { 48 FuncFuzzerParams params; 49 int opt = 0; 50 int index = 0; 51 while ((opt = getopt_long_only(argc, argv, "", long_options, &index)) != -1) { 52 switch (opt) { 53 case 'h': 54 usage(); 55 exit(0); 56 case 't': 57 params.target_func_ = optarg; 58 break; 59 default: 60 // Ignore. This option will be handled by libfuzzer. 61 break; 62 } 63 } 64 return params; 65 } 66 67 } // namespace vts 68 } // namespace android 69 70
