1 //===- FuzzerUtilLinux.cpp - Misc utils for Linux. ------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // Misc utils for Linux. 9 //===----------------------------------------------------------------------===// 10 #include "FuzzerPlatform.h" 11 #if LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FREEBSD || \ 12 LIBFUZZER_OPENBSD || LIBFUZZER_EMSCRIPTEN 13 #include "FuzzerCommand.h" 14 15 #include <stdlib.h> 16 #include <sys/types.h> 17 #include <sys/wait.h> 18 #include <unistd.h> 19 20 21 namespace fuzzer { 22 23 int ExecuteCommand(const Command &Cmd) { 24 std::string CmdLine = Cmd.toString(); 25 int exit_code = system(CmdLine.c_str()); 26 if (WIFEXITED(exit_code)) 27 return WEXITSTATUS(exit_code); 28 return exit_code; 29 } 30 31 void DiscardOutput(int Fd) { 32 FILE* Temp = fopen("/dev/null", "w"); 33 if (!Temp) 34 return; 35 dup2(fileno(Temp), Fd); 36 fclose(Temp); 37 } 38 39 } // namespace fuzzer 40 41 #endif 42