renamed examples/ to utils/

4 files changed, 0 insertions, 213 deletions

diff --git a/examples/argv_fuzzing/Makefile b/examples/argv_fuzzing/Makefile
deleted file mode 100644
index 5a0ac6e6..00000000
--- a/examples/argv_fuzzing/Makefile
+++ /dev/null
@@ -1,58 +0,0 @@
-#
-# american fuzzy lop++ - argvfuzz
-# --------------------------------
-#
-# Copyright 2019-2020 Kjell Braden <afflux@pentabarf.de>
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-
-.PHONY: all install clean
-
-PREFIX     ?= /usr/local
-BIN_PATH    = $(PREFIX)/bin
-HELPER_PATH = $(PREFIX)/lib/afl
-
-CFLAGS = -fPIC -Wall -Wextra
-LDFLAGS = -shared
-
-UNAME_SAYS_LINUX=$(shell uname | grep -E '^Linux|^GNU' >/dev/null; echo $$?)
-UNAME_SAYS_LINUX:sh=uname | grep -E '^Linux|^GNU' >/dev/null; echo $$?
-
-_LDFLAGS_ADD=$(UNAME_SAYS_LINUX:1=)
-LDFLAGS_ADD=$(_LDFLAGS_ADD:0=-ldl)
-LDFLAGS  += $(LDFLAGS_ADD)
-
-# on gcc for arm there is no -m32, but -mbe32
-M32FLAG = -m32
-M64FLAG = -m64
-
-CC_IS_GCC=$(shell $(CC) --version 2>/dev/null | grep -q gcc; echo $$?)
-CC_IS_GCC:sh=$(CC) --version 2>/dev/null | grep -q gcc; echo $$?
-CC_IS_ARMCOMPILER=$(shell $(CC) -v 2>&1 >/dev/null | grep -q arm; echo $$?)
-CC_IS_ARMCOMPILER:sh=$(CC) -v 2>&1 >/dev/null | grep -q arm; echo $$?
-
-_M32FLAG=$(CC_IS_GCC)$(CC_IS_ARMCOMPILER)
-__M32FLAG=$(_M32FLAG:00=-mbe32)
-___M32FLAG=$(__M32FLAG:$(CC_IS_GCC)$(CC_IS_ARMCOMPILER)=-m32)
-M32FLAG=$(___M32FLAG)
-
-all: argvfuzz32.so argvfuzz64.so
-
-argvfuzz32.so: argvfuzz.c
-	-@$(CC) $(M32FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ 2>/dev/null || echo "argvfuzz32 build failure (that's fine)"
-
-argvfuzz64.so: argvfuzz.c
-	-@$(CC) $(M64FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ 2>/dev/null || echo "argvfuzz64 build failure (that's fine)"
-
-install: argvfuzz32.so argvfuzz64.so
-	install -d -m 755 $(DESTDIR)$(HELPER_PATH)/
-	if [ -f argvfuzz32.so ]; then set -e; install -m 755 argvfuzz32.so $(DESTDIR)$(HELPER_PATH)/; fi
-	if [ -f argvfuzz64.so ]; then set -e; install -m 755 argvfuzz64.so $(DESTDIR)$(HELPER_PATH)/; fi
-
-clean:
-	rm -f argvfuzz32.so argvfuzz64.so
diff --git a/examples/argv_fuzzing/README.md b/examples/argv_fuzzing/README.md
deleted file mode 100644
index fa8cad80..00000000
--- a/examples/argv_fuzzing/README.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# argvfuzz
-
-afl supports fuzzing file inputs or stdin. When source is available,
-`argv-fuzz-inl.h` can be used to change `main()` to build argv from stdin.
-
-`argvfuzz` tries to provide the same functionality for binaries. When loaded
-using `LD_PRELOAD`, it will hook the call to `__libc_start_main` and replace
-argv using the same logic of `argv-fuzz-inl.h`.
-
-A few conditions need to be fulfilled for this mechanism to work correctly:
-
-1. As it relies on hooking the loader, it cannot work on static binaries.
-2. If the target binary does not use the default libc's `_start` implementation
-   (crt1.o), the hook may not run.
-3. The hook will replace argv with pointers to `.data` of `argvfuzz.so`. If the
-   target binary expects argv to be living on the stack, things may go wrong.
diff --git a/examples/argv_fuzzing/argv-fuzz-inl.h b/examples/argv_fuzzing/argv-fuzz-inl.h
deleted file mode 100644
index c15c0271..00000000
--- a/examples/argv_fuzzing/argv-fuzz-inl.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
-   american fuzzy lop++ - sample argv fuzzing wrapper
-   ------------------------------------------------
-
-   Originally written by Michal Zalewski
-
-   Copyright 2015 Google Inc. All rights reserved.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at:
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-   This file shows a simple way to fuzz command-line parameters with stock
-   afl-fuzz. To use, add:
-
-   #include "/path/to/argv-fuzz-inl.h"
-
-   ...to the file containing main(), ideally placing it after all the
-   standard includes. Next, put AFL_INIT_ARGV(); near the very beginning of
-   main().
-
-   This will cause the program to read NUL-delimited input from stdin and
-   put it in argv[]. Two subsequent NULs terminate the array. Empty
-   params are encoded as a lone 0x02. Lone 0x02 can't be generated, but
-   that shouldn't matter in real life.
-
-   If you would like to always preserve argv[0], use this instead:
-   AFL_INIT_SET0("prog_name");
-
-*/
-
-#ifndef _HAVE_ARGV_FUZZ_INL
-#define _HAVE_ARGV_FUZZ_INL
-
-#include <unistd.h>
-
-#define AFL_INIT_ARGV()          \
-  do {                           \
-                                 \
-    argv = afl_init_argv(&argc); \
-                                 \
-  } while (0)
-
-#define AFL_INIT_SET0(_p)        \
-  do {                           \
-                                 \
-    argv = afl_init_argv(&argc); \
-    argv[0] = (_p);              \
-    if (!argc) argc = 1;         \
-                                 \
-  } while (0)
-
-#define MAX_CMDLINE_LEN 100000
-#define MAX_CMDLINE_PAR 50000
-
-static char **afl_init_argv(int *argc) {
-
-  static char  in_buf[MAX_CMDLINE_LEN];
-  static char *ret[MAX_CMDLINE_PAR];
-
-  char *ptr = in_buf;
-  int   rc = 0;
-
-  if (read(0, in_buf, MAX_CMDLINE_LEN - 2) < 0) {}
-
-  while (*ptr && rc < MAX_CMDLINE_PAR) {
-
-    ret[rc] = ptr;
-    if (ret[rc][0] == 0x02 && !ret[rc][1]) ret[rc]++;
-    rc++;
-
-    while (*ptr)
-      ptr++;
-    ptr++;
-
-  }
-
-  *argc = rc;
-
-  return ret;
-
-}
-
-#undef MAX_CMDLINE_LEN
-#undef MAX_CMDLINE_PAR
-
-#endif                                              /* !_HAVE_ARGV_FUZZ_INL */
-
diff --git a/examples/argv_fuzzing/argvfuzz.c b/examples/argv_fuzzing/argvfuzz.c
deleted file mode 100644
index 4251ca4c..00000000
--- a/examples/argv_fuzzing/argvfuzz.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
-   american fuzzy lop++ - LD_PRELOAD for fuzzing argv in binaries
-   ------------------------------------------------------------
-
-   Copyright 2019-2020 Kjell Braden <afflux@pentabarf.de>
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at:
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- */
-
-#define _GNU_SOURCE                                        /* for RTLD_NEXT */
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include "argv-fuzz-inl.h"
-
-int __libc_start_main(int (*main)(int, char **, char **), int argc, char **argv,
-                      void (*init)(void), void (*fini)(void),
-                      void (*rtld_fini)(void), void *stack_end) {
-
-  int (*orig)(int (*main)(int, char **, char **), int argc, char **argv,
-              void (*init)(void), void (*fini)(void), void (*rtld_fini)(void),
-              void *stack_end);
-  int    sub_argc;
-  char **sub_argv;
-
-  (void)argc;
-  (void)argv;
-
-  orig = dlsym(RTLD_NEXT, __func__);
-
-  if (!orig) {
-
-    fprintf(stderr, "hook did not find original %s: %s\n", __func__, dlerror());
-    exit(EXIT_FAILURE);
-
-  }
-
-  sub_argv = afl_init_argv(&sub_argc);
-
-  return orig(main, sub_argc, sub_argv, init, fini, rtld_fini, stack_end);
-
-}
-