renamed examples/ to utils/

1 files changed, 0 insertions, 326 deletions

diff --git a/examples/aflpp_driver/aflpp_driver.c b/examples/aflpp_driver/aflpp_driver.c
deleted file mode 100644
index 017aa72b..00000000
--- a/examples/aflpp_driver/aflpp_driver.c
+++ /dev/null
@@ -1,326 +0,0 @@
-//===- afl_driver.cpp - a glue between AFL and libFuzzer --------*- C++ -* ===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//===----------------------------------------------------------------------===//
-
-/* This file allows to fuzz libFuzzer-style target functions
- (LLVMFuzzerTestOneInput) with AFL using AFL's persistent (in-process) mode.
-
-Usage:
-################################################################################
-cat << EOF > test_fuzzer.cc
-#include <stddef.h>
-#include <stdint.h>
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-  if (size > 0 && data[0] == 'H')
-    if (size > 1 && data[1] == 'I')
-       if (size > 2 && data[2] == '!')
-       __builtin_trap();
-  return 0;
-
-}
-
-EOF
-# Build your target with -fsanitize-coverage=trace-pc-guard using fresh clang.
-clang -g -fsanitize-coverage=trace-pc-guard test_fuzzer.cc -c
-# Build afl-llvm-rt.o.c from the AFL distribution.
-clang -c -w $AFL_HOME/instrumentation/afl-llvm-rt.o.c
-# Build this file, link it with afl-llvm-rt.o.o and the target code.
-clang++ afl_driver.cpp test_fuzzer.o afl-llvm-rt.o.o
-# Run AFL:
-rm -rf IN OUT; mkdir IN OUT; echo z > IN/z;
-$AFL_HOME/afl-fuzz -i IN -o OUT ./a.out
-################################################################################
-AFL_DRIVER_STDERR_DUPLICATE_FILENAME: Setting this *appends* stderr to the file
-specified. If the file does not exist, it is created. This is useful for getting
-stack traces (when using ASAN for example) or original error messages on hard
-to reproduce bugs. Note that any content written to stderr will be written to
-this file instead of stderr's usual location.
-
-AFL_DRIVER_CLOSE_FD_MASK: Similar to libFuzzer's -close_fd_mask behavior option.
-If 1, close stdout at startup. If 2 close stderr; if 3 close both.
-
-*/
-#include <assert.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#include "config.h"
-#include "cmplog.h"
-
-#ifdef _DEBUG
-  #include "hash.h"
-#endif
-
-#ifndef MAP_FIXED_NOREPLACE
-  #define MAP_FIXED_NOREPLACE 0x100000
-#endif
-
-#define MAX_DUMMY_SIZE 256000
-
-// Platform detection. Copied from FuzzerInternal.h
-#ifdef __linux__
-  #define LIBFUZZER_LINUX 1
-  #define LIBFUZZER_APPLE 0
-  #define LIBFUZZER_NETBSD 0
-  #define LIBFUZZER_FREEBSD 0
-  #define LIBFUZZER_OPENBSD 0
-#elif __APPLE__
-  #define LIBFUZZER_LINUX 0
-  #define LIBFUZZER_APPLE 1
-  #define LIBFUZZER_NETBSD 0
-  #define LIBFUZZER_FREEBSD 0
-  #define LIBFUZZER_OPENBSD 0
-#elif __NetBSD__
-  #define LIBFUZZER_LINUX 0
-  #define LIBFUZZER_APPLE 0
-  #define LIBFUZZER_NETBSD 1
-  #define LIBFUZZER_FREEBSD 0
-  #define LIBFUZZER_OPENBSD 0
-#elif __FreeBSD__
-  #define LIBFUZZER_LINUX 0
-  #define LIBFUZZER_APPLE 0
-  #define LIBFUZZER_NETBSD 0
-  #define LIBFUZZER_FREEBSD 1
-  #define LIBFUZZER_OPENBSD 0
-#elif __OpenBSD__
-  #define LIBFUZZER_LINUX 0
-  #define LIBFUZZER_APPLE 0
-  #define LIBFUZZER_NETBSD 0
-  #define LIBFUZZER_FREEBSD 0
-  #define LIBFUZZER_OPENBSD 1
-#else
-  #error "Support for your platform has not been implemented"
-#endif
-
-int                   __afl_sharedmem_fuzzing = 1;
-extern unsigned int * __afl_fuzz_len;
-extern unsigned char *__afl_fuzz_ptr;
-
-// libFuzzer interface is thin, so we don't include any libFuzzer headers.
-int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
-__attribute__((weak)) int LLVMFuzzerInitialize(int *argc, char ***argv);
-
-// Notify AFL about persistent mode.
-static volatile char AFL_PERSISTENT[] = "##SIG_AFL_PERSISTENT##";
-int                  __afl_persistent_loop(unsigned int);
-
-// Notify AFL about deferred forkserver.
-static volatile char AFL_DEFER_FORKSVR[] = "##SIG_AFL_DEFER_FORKSRV##";
-void                 __afl_manual_init();
-
-// Use this optionally defined function to output sanitizer messages even if
-// user asks to close stderr.
-__attribute__((weak)) void __sanitizer_set_report_fd(void *);
-
-// Keep track of where stderr content is being written to, so that
-// dup_and_close_stderr can use the correct one.
-static FILE *output_file;
-
-// Experimental feature to use afl_driver without AFL's deferred mode.
-// Needs to run before __afl_auto_init.
-__attribute__((constructor(0))) static void __decide_deferred_forkserver(void) {
-
-  if (getenv("AFL_DRIVER_DONT_DEFER")) {
-
-    if (unsetenv("__AFL_DEFER_FORKSRV")) {
-
-      perror("Failed to unset __AFL_DEFER_FORKSRV");
-      abort();
-
-    }
-
-  }
-
-}
-
-// If the user asks us to duplicate stderr, then do it.
-static void maybe_duplicate_stderr() {
-
-  char *stderr_duplicate_filename =
-      getenv("AFL_DRIVER_STDERR_DUPLICATE_FILENAME");
-
-  if (!stderr_duplicate_filename) return;
-
-  FILE *stderr_duplicate_stream =
-      freopen(stderr_duplicate_filename, "a+", stderr);
-
-  if (!stderr_duplicate_stream) {
-
-    fprintf(
-        stderr,
-        "Failed to duplicate stderr to AFL_DRIVER_STDERR_DUPLICATE_FILENAME");
-    abort();
-
-  }
-
-  output_file = stderr_duplicate_stream;
-
-}
-
-// Most of these I/O functions were inspired by/copied from libFuzzer's code.
-static void discard_output(int fd) {
-
-  FILE *temp = fopen("/dev/null", "w");
-  if (!temp) abort();
-  dup2(fileno(temp), fd);
-  fclose(temp);
-
-}
-
-static void close_stdout() {
-
-  discard_output(STDOUT_FILENO);
-
-}
-
-// Prevent the targeted code from writing to "stderr" but allow sanitizers and
-// this driver to do so.
-static void dup_and_close_stderr() {
-
-  int output_fileno = fileno(output_file);
-  int output_fd = dup(output_fileno);
-  if (output_fd <= 0) abort();
-  FILE *new_output_file = fdopen(output_fd, "w");
-  if (!new_output_file) abort();
-  if (!__sanitizer_set_report_fd) return;
-  __sanitizer_set_report_fd((void *)(long int)output_fd);
-  discard_output(output_fileno);
-
-}
-
-// Close stdout and/or stderr if user asks for it.
-static void maybe_close_fd_mask() {
-
-  char *fd_mask_str = getenv("AFL_DRIVER_CLOSE_FD_MASK");
-  if (!fd_mask_str) return;
-  int fd_mask = atoi(fd_mask_str);
-  if (fd_mask & 2) dup_and_close_stderr();
-  if (fd_mask & 1) close_stdout();
-
-}
-
-// Define LLVMFuzzerMutate to avoid link failures for targets that use it
-// with libFuzzer's LLVMFuzzerCustomMutator.
-size_t LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize) {
-
-  // assert(false && "LLVMFuzzerMutate should not be called from afl_driver");
-  return 0;
-
-}
-
-// Execute any files provided as parameters.
-static int ExecuteFilesOnyByOne(int argc, char **argv) {
-
-  unsigned char *buf = malloc(MAX_FILE);
-  for (int i = 1; i < argc; i++) {
-
-    int fd = open(argv[i], O_RDONLY);
-    if (fd == -1) continue;
-    ssize_t length = read(fd, buf, MAX_FILE);
-    if (length > 0) {
-
-      printf("Reading %zu bytes from %s\n", length, argv[i]);
-      LLVMFuzzerTestOneInput(buf, length);
-      printf("Execution successful.\n");
-
-    }
-
-  }
-
-  free(buf);
-  return 0;
-
-}
-
-int main(int argc, char **argv) {
-
-  printf(
-      "======================= INFO =========================\n"
-      "This binary is built for afl++.\n"
-      "To run the target function on individual input(s) execute this:\n"
-      "  %s INPUT_FILE1 [INPUT_FILE2 ... ]\n"
-      "To fuzz with afl-fuzz execute this:\n"
-      "  afl-fuzz [afl-flags] -- %s [-N]\n"
-      "afl-fuzz will run N iterations before re-spawning the process (default: "
-      "1000)\n"
-      "======================================================\n",
-      argv[0], argv[0]);
-
-  output_file = stderr;
-  maybe_duplicate_stderr();
-  maybe_close_fd_mask();
-  if (LLVMFuzzerInitialize) {
-
-    fprintf(stderr, "Running LLVMFuzzerInitialize ...\n");
-    LLVMFuzzerInitialize(&argc, &argv);
-    fprintf(stderr, "continue...\n");
-
-  }
-
-  // Do any other expensive one-time initialization here.
-
-  uint8_t dummy_input[64] = {0};
-  memcpy(dummy_input, (void *)AFL_PERSISTENT, sizeof(AFL_PERSISTENT));
-  memcpy(dummy_input + 32, (void *)AFL_DEFER_FORKSVR,
-         sizeof(AFL_DEFER_FORKSVR));
-  int N = INT_MAX;
-  if (argc == 2 && argv[1][0] == '-')
-    N = atoi(argv[1] + 1);
-  else if (argc == 2 && (N = atoi(argv[1])) > 0)
-    printf("WARNING: using the deprecated call style `%s %d`\n", argv[0], N);
-  else if (argc > 1) {
-
-    __afl_sharedmem_fuzzing = 0;
-    __afl_manual_init();
-    return ExecuteFilesOnyByOne(argc, argv);
-
-  }
-
-  assert(N > 0);
-
-  //  if (!getenv("AFL_DRIVER_DONT_DEFER"))
-  __afl_manual_init();
-
-  // Call LLVMFuzzerTestOneInput here so that coverage caused by initialization
-  // on the first execution of LLVMFuzzerTestOneInput is ignored.
-  LLVMFuzzerTestOneInput(dummy_input, 1);
-
-  int num_runs = 0;
-  while (__afl_persistent_loop(N)) {
-
-#ifdef _DEBUG
-    fprintf(stderr, "CLIENT crc: %016llx len: %u\n",
-            hash64(__afl_fuzz_ptr, *__afl_fuzz_len, 0xa5b35705),
-            *__afl_fuzz_len);
-    fprintf(stderr, "RECV:");
-    for (int i = 0; i < *__afl_fuzz_len; i++)
-      fprintf(stderr, "%02x", __afl_fuzz_ptr[i]);
-    fprintf(stderr, "\n");
-#endif
-    if (*__afl_fuzz_len) {
-
-      num_runs++;
-      LLVMFuzzerTestOneInput(__afl_fuzz_ptr, *__afl_fuzz_len);
-
-    }
-
-  }
-
-  printf("%s: successfully executed %d input(s)\n", argv[0], num_runs);
-
-}
-