10b57cec5SDimitry Andric //===- FuzzerUtilLinux.cpp - Misc utils for Linux. ------------------------===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric // Misc utils for Linux. 90b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 105ffd83dbSDimitry Andric #include "FuzzerPlatform.h" 110b57cec5SDimitry Andric #if LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FREEBSD || \ 12e8d8bef9SDimitry Andric LIBFUZZER_EMSCRIPTEN 130b57cec5SDimitry Andric #include "FuzzerCommand.h" 14bdd1243dSDimitry Andric #include "FuzzerInternal.h" 150b57cec5SDimitry Andric 16bdd1243dSDimitry Andric #include <signal.h> 170b57cec5SDimitry Andric #include <stdlib.h> 180b57cec5SDimitry Andric #include <sys/types.h> 190b57cec5SDimitry Andric #include <sys/wait.h> 20480093f4SDimitry Andric #include <unistd.h> 210b57cec5SDimitry Andric 220b57cec5SDimitry Andric 230b57cec5SDimitry Andric namespace fuzzer { 240b57cec5SDimitry Andric 250b57cec5SDimitry Andric int ExecuteCommand(const Command &Cmd) { 260b57cec5SDimitry Andric std::string CmdLine = Cmd.toString(); 270b57cec5SDimitry Andric int exit_code = system(CmdLine.c_str()); 280b57cec5SDimitry Andric if (WIFEXITED(exit_code)) 290b57cec5SDimitry Andric return WEXITSTATUS(exit_code); 30bdd1243dSDimitry Andric if (WIFSIGNALED(exit_code) && WTERMSIG(exit_code) == SIGINT) 31bdd1243dSDimitry Andric return Fuzzer::InterruptExitCode(); 320b57cec5SDimitry Andric return exit_code; 330b57cec5SDimitry Andric } 340b57cec5SDimitry Andric 35480093f4SDimitry Andric void DiscardOutput(int Fd) { 36480093f4SDimitry Andric FILE* Temp = fopen("/dev/null", "w"); 37480093f4SDimitry Andric if (!Temp) 38480093f4SDimitry Andric return; 39480093f4SDimitry Andric dup2(fileno(Temp), Fd); 40480093f4SDimitry Andric fclose(Temp); 41480093f4SDimitry Andric } 42480093f4SDimitry Andric 435f757f3fSDimitry Andric void SetThreadName(std::thread &thread, const std::string &name) { 445f757f3fSDimitry Andric #if LIBFUZZER_LINUX || LIBFUZZER_FREEBSD 455f757f3fSDimitry Andric (void)pthread_setname_np(thread.native_handle(), name.c_str()); 465f757f3fSDimitry Andric #elif LIBFUZZER_NETBSD 47*0fca6ea1SDimitry Andric (void)pthread_setname_np(thread.native_handle(), "%s", const_cast<char *>(name.c_str())); 485f757f3fSDimitry Andric #endif 495f757f3fSDimitry Andric } 505f757f3fSDimitry Andric 510b57cec5SDimitry Andric } // namespace fuzzer 520b57cec5SDimitry Andric 530b57cec5SDimitry Andric #endif 54